Castelion Jobs in Usa

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Inventory Specialist

As an Inventory Specialist, you'll play a critical role in maintaining the integrity, accuracy, and efficiency of inventory operations across physical and system environments. Working closely with Purchasing, Production, and Supply Chain teams, you will ensure that materials are accurately received, tracked, stored, and issued to support production schedules.

This role requires strong attention to detail, hands-on execution, and a continuous improvement mindset. You will be responsible for ensuring that physical inventory aligns precisely with system data to enable reliable production planning and operational excellence in a fast-paced manufacturing environment.

Responsibilities

• Track, receive, identify, and document inbound inventory in accordance with company procedures.
• Coordinate shipping activities and ensure outbound materials are accurately processed and documented.
• Maintain alignment between physical inventory stock levels and corresponding quantities and locations within the ERP system.
• Own inventory accuracy by executing and maintaining a robust cycle count program.
• Perform regular physical inventory audits and reconcile discrepancies between physical and system records.
• Collaborate with Purchasing, Production, and cross-functional stakeholders to investigate and resolve inventory variances.
• Identify root causes of discrepancies and implement corrective actions to prevent recurrence.
• Support daily production kitting and ensure the production floor is supplied with required materials per the monthly production plan.
• Optimize physical storage locations to improve space utilization, material flow, and accessibility.
• Maintain compliance with company procedures, documentation standards, and security requirements.
• Lift, carry, handle, and transport materials up to 50 lbs unassisted as required.
• Support continuous improvement initiatives focused on inventory control, process efficiency, and data accuracy.

Basic Qualifications

• High school diploma or vocational school diploma.
• 3+ years of experience in Material Management, Manufacturing Operations, or a related field.
• Experience working in ERP systems within a manufacturing environment.
• Strong proficiency in Microsoft Office tools including Word, Excel, and PowerPoint.
• Advanced Excel skills with the ability to analyze and reconcile data.
• Strong written and verbal communication skills.
• Self-motivated individual with a hands-on approach and a demonstrated continuous improvement mindset.
• Ability to obtain and maintain an active U.S. Secret security clearance.

Preferred Skills and Experience

• Experience supporting inventory operations in aerospace, defense, or high-tech manufacturing environments.
• Experience driving process improvements in inventory control or warehouse operations.
• Familiarity with structured cycle count programs and audit readiness practices.
• Experience supporting production kitting and material flow optimization.
• Professional certifications in supply chain or operations (e.g., APICS) are a plus.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Production Coordinator

As a Production Coordinator, you’ll play a key role in Castelion’s manufacturing and supply chain operations. Working closely with the Materials Manager, production leadership, and cross-functional teams, you will help plan, track, and coordinate material and part flow across our production cells.

This role requires exceptional organization, attention to detail, and communication skills. You’ll be responsible for ensuring materials, documentation, and hardware are accurately staged and ready to meet demanding build schedules — helping keep production on track in a fast-moving, high-precision environment.

Responsibilities

• Track and coordinate parts, assemblies, and documentation throughout the manufacturing workflow to meet schedule targets.
• Maintain accurate and up-to-date data in the MRP/ERP/MES systems; ensure all transactions reflect physical material movement.
• Collaborate with the Supply Chain, Engineering, and Production teams to resolve material shortages, discrepancies, and delays.
• Monitor work order progress, communicate part status, and identify potential bottlenecks or risks to leadership.
• Support production planning by requesting kits, verifying demand, staging materials, and coordinating transfers between build areas.
• Coordinate with Shipping & Receiving and Inventory teams to ensure inbound and outbound materials are processed correctly and promptly.
• Generate and maintain production reports, material trackers, and build documentation.
• Support continuous improvement initiatives focused on improving material flow, data accuracy, and production efficiency.
• Maintain compliance with company procedures and ITAR/export control requirements.

Basic Qualifications

• 4+ years of experience in a manufacturing, supply chain, or logistics environment.
• Experience working with ERP/MES systems (e.g., NetSuite, Oracle, SAP, or equivalent).
• Strong organizational skills with the ability to manage multiple priorities in a fast-paced environment.
• Proficiency with Microsoft Office and Google Workspace tools; strong Excel/Sheets skills.
• Excellent written and verbal communication skills.
• Ability to work onsite full-time at our Torrance, CA facility, with flexibility for overtime as needed.

Preferred Skills and Experience

• Experience coordinating production or materials in aerospace, defense, or high-tech manufacturing environments.
• Familiarity with lean manufacturing principles, 5S, and continuous improvement tools.
• Experience generating and interpreting production metrics or dashboards (e.g., Tableau, Power BI).
• Hands-on experience with material handling or coordination across receiving, inspection, and production.
• APICS, PMP, or similar certification.

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Manager – Art Direction, Brand Studio

As Manager - Art Direction, Brand Studio, you own the day-to-day design leadership and creative execution that brings Castelion's brand to life across campaigns, systems, and key touchpoints. You'll translate brand strategy set by senior leadership into practical, repeatable, high-quality design solutions that work across digital, print, recruiting, events, and built environments.

This is a hands-on role that blends making and leading. You will design, art direct, and build the infrastructure, including templates, libraries, playbooks, and workflows that enable high-quality, on-brand work at scale. You will collaborate closely with Marketing & Communications, Business Development and Capture, HR, and Engineering to turn complex technical and mission stories into clear, compelling visual narratives.

Responsibilities

Brand systems and visual identity

• Evolve and maintain Castelion's visual identity system (logo usage, color, typography, imagery, layout, motion guidelines) so it works across internal and external channels.
• Translate brand and visual principles into clear standards, toolkits, and documentation that non-designers can actually use.
• Build and maintain centralized component and asset libraries in Figma and Adobe Creative Cloud, with naming conventions, versioning, and usage guidance.

Campaigns, launches, and flagship stories

• Lead art direction for integrated campaigns, product and capability launches, customer and investor narratives, recruiting initiatives, conferences, and major announcements.
• Drive cohesive creative across channels, including web and digital assets, social visuals, print collateral, video storyboards, event graphics and activations so everything feels unmistakably Castelion.
• Turn complex, often technical subject matter into intuitive visual hierarchies, diagrams, and stories that resonate with both technical and non-technical audiences.

Brand asset ecosystem and tools

• Design and maintain modular templates and reusable assets for presentations, one-pagers, briefs, case studies, recruiting collateral, event kits, and internal communications.
• Architect a navigable, well-organized asset library that speeds up delivery for Marketing, BD, and Recruiting.
• Continuously refine tools and templates based on adoption, feedback, and emerging needs.

Cross-functional creative partnership

• Partner with Marketing & Communications on brand campaigns, brand strategy, content, social, and executive communications.
• Partner with Business Development and Capture on pursuit storytelling, proposal design, customer demos, and conference presence.
• Partner with HR on candidate-facing materials, recruiting campaigns, onboarding experiences, and employer brand assets.
• Partner with Facilities and Engineering to ensure physical spaces, hardware displays, and signage reflect Castelion's visual standards.
• Facilitate working sessions that help teams articulate objectives and translate them into creative briefs, concepts, and visual narratives.

Team leadership and studio operations

• Provide day-to-day direction, feedback, and mentorship for graphic artist to help grow their craft, speed, and judgment.
• Establish clear intake, scoping, prioritization, and review workflows so the Brand Studio stays focused on the highest-impact work while still handling urgent needs.
• Set and uphold quality standards for all visual output, ensuring work is on-brief, on-time, on-brand, and appropriate for our customers and mission.

Basic Qualifications

• 5+ years of experience in visual design, brand systems, art direction, or closely related roles, with a portfolio that shows strong visual storytelling, systems thinking, and multi-format execution.
• Demonstrated experience owning or evolving a visual identity system and building reusable design infrastructure (templates, libraries, guidelines) that others rely on.
• Proficiency in Figma and Adobe Creative Cloud (Illustrator, InDesign, Photoshop) with excellent layout, typography, and information design skills.
• Experience collaborating directly with cross-functional partners such as marketing, communications, business development, engineering, and HR/People.
• Strong communication and presentation skills; comfortable explaining design rationale, giving and receiving feedback, and influencing decisions with non-design stakeholders.

Preferred Skills and Experience

• Experience in defense, aerospace, autonomy, robotics, or other deep-tech sectors.
• Experience supporting capture/proposal efforts, or government/DoW customers from a creative and visual storytelling perspective.
• Experience with large-format or environmental graphics, signage, and event or experiential branding and activations.
• Familiarity with mid-century modern design and Space Age futurism, and interest in applying these influences to a contemporary defense brand.
• Comfort with basic video editing, motion design, or storyboarding for short-form explainers or sizzle content.
• Active or eligible for a U.S. security clearance.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Director of Manufacturing

We’re seeking a Director of Manufacturing to lead our Los Angeles based manufacturing operations — our modern “Arsenal of Democracy” — delivering hypersonic capability at scale to deter future conflicts. In this pivotal leadership role, you will build and lead a world‑class manufacturing operation, pushing for innovation and operational excellence that positions us as the nation’s premier hypersonic producer.

Responsibilities

• Define and execute strategy to scale all Los Angeles based production including avionics, sub-assemblies, mechanisms, and composites fabrication from prototype to scaled production
• Recruit, train/develop, and scale a diverse, high-performing 100+ employee manufacturing team (technicians, leaders, and manufacturing engineers)
• Support the implementation and refinement of production software systems and tools (MES, ERP, PLM, etc)
• Oversee facility planning (layout, flow optimization, and equipment selection and acquisition)
• Oversee day-to-day production and manufacturing operations — including production scheduling, capacity planning, resource allocation, inventory and supply-chain coordination, materials flow, and facility/equipment management
• Forecast and manage operational and capital expenditures.
• Develop, implement, and refine KPIs to measure performance.
• Lead continuous process development and improvement efforts to optimize yield, throughput, manufacturing cost, and production reliability across all production lines
• Establish and maintain a culture that prioritizes safety, quality, speed and continuous improvement.

Basic Qualifications

• Bachelor’s degree in Engineering
• 10+ years in production/manufacturing operations or manufacturing engineering
• 5+ years in production/operations leadership
• Demonstrated success in scaling a production operation from development/prototype to high volume production
• Deep understanding of high-precision, complex aerospace hardware production — including metallic and composite fabrication, machining/welding/additive, tight-tolerance assembly, avionics, testing and acceptance, and NDE.
• Skilled at interpreting raw data, identifying trends or anomalies, and translating findings into clear, data-informed strategies.
• Demonstrated ability to lead, mentor, and develop a high-performing, cross-functional team — including production staff, manufacturing engineers, quality, supply-chain, and operations personnel — with emphasis on building culture, accountability, and continuous improvement
• Excellent communication, interpersonal, and cross-functional collaboration skills to interface with engineering, quality, supply-chain, leadership, and possibly external partners or customers.
• Demonstrated commitment to safety, quality, and compliance

Preferred Skills and Experience

• Comfort operating in a fast-paced, high-stakes, high-reliability environment typical of aerospace/defense startups — able to make decisions under ambiguity, handle programmatic/contract demands, and adapt as priorities shift
• Experience with manufacturing execution systems (MES/ERP/PLM), production data systems, material resource planning (MRP), and digital manufacturing workflows to manage operations, quality, change control, and configuration
• Strong background in manufacturing engineering practices, operations excellence, and continuous improvement methodologies (e.g., Lean manufacturing, Six Sigma, process optimization, DFM/DFA, production flow and layout planning, tooling and automation)
• Deep knowledge of aerospace manufacturing standards and regulatory frameworks (e.g., AS9100, NADCAP, applicable military/defense manufacturing standards), including quality management, audit readiness, compliance, and export-control/ITAR requirements
• Extensive leadership experience (10–15+ years) in aerospace, defense, or high-complexity manufacturing, including several years at the sr. manager or director level leading cross-functional teams

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Site EHS Lead - Rio Rancho (NM)

The Site EHS Lead will serve as the primary Environmental, Health, and Safety (EHS) expert for the Rio Rancho, New Mexico facility, which will support solid rocket motor manufacturing, integration, and test activities. This role will have full ownership of site-level EHS operations and will play a critical role in facility startup, commissioning, and ramp-up to steady-state operations in a fast-paced, high-hazard manufacturing environment.

The ideal candidate will be responsible for ensuring the safety and environmental compliance of manufacturing and test processes while driving continuous improvement in EHS performance. This position requires a strong understanding of process safety management, hazard analysis, regulatory compliance, and industrial safety best practices applicable to energetics-related operations.

As an integral part of the team, the Site EHS Lead will work closely with operations, engineering, and regulatory stakeholders to implement and enforce EHS programs, conduct risk assessments, and support compliance initiatives that protect employees, the environment, and mission-critical operations. The role will also provide temporary EHS support to the Midland, Texas facility on an as-needed basis.

Responsibilities

Site EHS Leadership & Ownership

• Serve as the primary EHS authority and point of contact for the Rio Rancho facility, with full responsibility for site-level EHS compliance, programs, and performance.
• Lead EHS planning and execution for facility startup, commissioning, and ramp-up to production operations.
• Act as the site liaison with regulatory agencies, inspectors, and external stakeholders as required.

Process Safety & Risk Management

• Develop, implement, and maintain process safety and risk management activities for manufacturing operations, including hazard analyses (HAZOP, LOPA, FMEA), risk assessments, and identification of safety gaps.
• Integrate EHS requirements into process design, equipment selection, and operating procedures from development through production.

Regulatory & Environmental Compliance

• Ensure compliance with applicable federal, state, and local regulations, including OSHA, EPA, ATF, NFPA, and other relevant safety and environmental standards.
• Oversee environmental compliance programs, including hazardous waste management, air emissions, and storm water management.
• Maintain required permits, records, reports, and regulatory submittals for the Rio Rancho facility.

Safety Program Development & Execution

• Design, implement, and maintain site-specific EHS programs, policies, and procedures that support safe operations and protect employees and the environment.
• Conduct routine safety audits, inspections, and assessments to verify compliance and program effectiveness.
• Drive continuous improvement initiatives using risk-based approaches and industry best practices.

Incident Management & Emergency Preparedness

• Lead investigations of safety incidents, near misses, and environmental events; perform root cause analysis; and implement corrective and preventive actions.
• Develop and maintain emergency response plans, including evacuation procedures, drills, and spill response preparedness.

Training & Workforce Engagement

• Develop and deliver EHS training for employees and contractors, including hazard recognition, safe work practices, emergency response, and regulatory requirements.
• Partner with operations, engineering, and maintenance teams to reinforce safe behaviors and integrate EHS into daily operations.

Multi-Site Support

• Provide temporary EHS support to the Midland, Texas facility as needed, including audits, incident support, program development, or special projects.

Basic Qualifications

• Bachelor’s degree in Environmental Health & Safety, Environmental Engineering, Chemical Engineering, Industrial Engineering, Safety Engineering, or a related technical field.
• 5+ years of experience supporting EHS and process safety programs in manufacturing, test, or other high-hazard operational environments.
• Demonstrated experience with process safety management and hazard analysis techniques (HAZOP, LOPA, FMEA).
• Working knowledge of OSHA, EPA, ATF, NFPA, and applicable state and local EHS regulations.
• Experience leading incident investigations and implementing corrective and preventive actions.
• Hands-on experience developing and implementing EHS programs for manufacturing and test operations.
• Strong communication and interpersonal skills, with the ability to work independently and influence cross-functional teams.
• Willingness and ability to travel periodically to support Midland, Texas operations

Preferred Skills and Experience

• Professional certification such as CSP, CIH, or similar.
• Experience supporting solid rocket motor manufacturing, propulsion systems, energetics, or other explosive or high-energy material operations.
• Experience supporting facility startup, commissioning, or greenfield site development.
• Familiarity with EHS management systems (e.g., ISO 1400, ISO 45001) and continuous improvement methodologies

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Strategic Sourcing, Purchasing, and Commodity Management (All Levels)

As a member of the strategic sourcing team, you will be integral in working with the cross-functional groups defining, designing, building, and testing Castelion vehicle and missile subsystems. We are looking for people of all levels; from newly established supply chain professionals to those who have amassed multiple years worth of experience. You win in this role by creating a supplier ecosystem that scales seamlessly from prototype to production. Success is defined by the perfect balance of technical quality, aggressive timelines, and the operational agility needed to help Castelion scale. We seek intelligent, collaborative, and driven individuals who are passionate about problem-solving and eager to lay the groundwork for a team to contribute to an extraordinary mission. If you thrive in challenging environments and are excited by the prospect of making an immediate tangible impact, we want to hear from you.

Responsibilities

• Support the development and execution of sourcing strategies by analyzing suppliers to identify cost-saving opportunities and ensure reliable supply for upcoming product launches.
• Assist in evaluating and selecting suppliers based on quality, reliability, and cost-effectiveness to maintain a robust supply base capable of Castelion's rapid development and production.
• Track and report on performance metrics and sourcing trends to support alignment with organizational goals.
• Collaborate with suppliers to improve quality, reduce costs, and enhance service levels while addressing risks and compliance requirements.
• Participate in contract negotiations, including pricing, technical requirements, and compliance terms.
• Facilitate design for manufacturability reviews with input from supplier quality and engineering teams.
• Contribute to the development and execution of supply plans to mitigate risks and ensure timely delivery of quality materials.
• Assist in addressing sole/single source risks to maintain supply chain continuity.
• Lead and collaborate with engineering and quality teams to address and resolve issues with rejected materials, aiming to prevent future quality problems.
• Provide regular updates to key stakeholders on critical supply issues and maintain strong relationships with suppliers.
• Ensure adherence to company policies, procedures, and relevant government regulations.

Basic Qualifications

• Educational Background: Bachelor's degree or equivalent
• Technical Proficiency: 2+ years of experience working in a related field, program, or project

Preferred Skills and Experience

• System Experience: Experience with MRP or ERP systems, and with managing bill of materials, work orders, and purchase orders, and the total ownership of the data within them.
• Technical Skills: This role requires broad mechanical domain knowledge, including machined parts, composites, chemicals, avionics and their associated manufacturers and manufacturing methods.
• Problem-Solving: Innovative problem-solving approach using critical thinking, including utilization of learnings from an American Production and Inventory Control Society (APICS) certification, Six Sigma certification, or similar certifications and data analysis using Excel, SQL, or an advanced analytics software.
• Clearance: Active US Government security clearance or the ability to get one.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Manager, Supplier Development and Quality

As the Manager of Supplier Development and Quality, you will play a critical role in partnering with cross-functional teams to define, develop, qualify, and sustain the supplier base supporting Castelion vehicle and missile subsystems. This role requires an experienced quality and supplier development leader who can work closely with engineering, manufacturing, and supply chain to ensure suppliers meet technical, quality, and delivery requirements throughout development and production. You will lead supplier qualifications, audits, performance management, and continuous improvement initiatives to align near-term development schedules with long-term quality, reliability, and scalability objectives. We seek intelligent, collaborative, and driven leaders who are passionate about building robust supplier partnerships and quality systems from the ground up. If you thrive in fast-paced, high-accountability environments and are motivated by making a tangible impact on mission-critical hardware, we want to hear from you.

Responsibilities

• Lead supplier development activities in collaboration with engineering, manufacturing, and strategic sourcing to ensure suppliers are capable of meeting quality, technical, and schedule requirements for development and production programs.
• Evaluate, qualify, and approve suppliers based on quality systems, technical capability, reliability, risk, and cost, building a resilient and scalable supplier base to support Castelion’s rapid development and production cadence.
• Define and manage supplier quality requirements, including audits, qualifications, AS9102 FAIRs, certifications, and ongoing compliance to aerospace and company standards.
• Collaborate with cross-functional stakeholders to drive supplier performance improvements in quality, delivery, cost, and service while identifying and mitigating supply chain and compliance risks.
• Support contract reviews and negotiations by ensuring quality, technical, and regulatory requirements are clearly defined, achievable, and enforceable with suppliers.
• Facilitate design-for-manufacturability and design-for-quality reviews with engineering and suppliers to proactively reduce risk and improve producibility.
• Partner with engineering and operations to address nonconforming material, supplier escapes, and rejected hardware through root cause analysis and corrective action, with a focus on prevention and continuous improvement.
• Establish and maintain supplier performance metrics, reporting regularly to stakeholders on quality trends, risks, and critical issues.
• Build and maintain strong supplier relationships through regular engagement, performance reviews, and development plans.
• Ensure supplier compliance with company policies, quality management systems, and applicable customer, industry, and government regulations.

Basic Qualifications

• Educational Background: Bachelor's degree or equivalent
• Technical Proficiency: 6+ years of experience working in a related field, program, or project

Preferred Skills and Experience

• Aerospace Quality Systems: Experience operating within AS9100-compliant environments, including supplier qualification, audits, AS9102 FAIRs, corrective actions, and ongoing supplier compliance.
• Manufacturing & Technical Expertise: Broad knowledge of aerospace manufacturing processes and suppliers, including machined parts, composites, chemicals, and avionics and their relevant specifications, typical customer requirements, and certifications.
• Supplier Development & Analytics: Strong root cause and corrective action capability using structured problem-solving methods (e.g., 8D, Six Sigma, Lean), supported by data-driven analysis in Excel, SQL, or similar tools.
• Business & Quality Systems: Familiarity with ERP, MRP, and Quality Management Systems to manage supplier data, nonconformances, and documentation accuracy.
• Security Clearance: Active U.S. Government security clearance or the ability to obtain one.

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Operations Engineer

As an Operations Engineer, you will be the heartbeat of schedule execution for Castelion's hypersonic weapons development. You will architect and maintain integrated master schedules that span concept design, engineering development, hardware production, flight test, and operational deployment. Working across engineering, manufacturing, and government-program stakeholders, you will keep aggressive timelines on track and ensure that every milestone is grounded in technical reality.

This role demands a strategic thinker who is equally comfortable with hands-on execution and thrives in a dynamic startup environment. This person can bring order to complexity while supporting multiple high-stakes government programs.

Responsibilities

• Integrated Master Scheduling: Build and maintain end-to-end schedules from early design through full-rate production and fielding of hypersonic weapon systems.
• Critical Path Management: Identify dependencies, risks, and recovery options to keep programs aligned with contractual commitments and customer milestones.
• Cross-Functional Coordination: Partner with engineering leads, program managers, and operations teams to ensure schedule accuracy and timely updates.
• Data-Driven Insights: Develop tools, dashboards, and reports that provide real-time visibility to leadership and government customers.
• Process Improvement: Gain deep understanding of Castelion's engineering and manufacturing workflows to drive schedule fidelity and continuous improvement.
• Rapid Response: Lead high-tempo reviews, update schedules in response to evolving priorities, and escalate risks before they become blockers.
• Customer Interface: Provide schedule briefings and status updates to U.S. Government stakeholders, supporting formal reviews and contractual reporting

Basic Qualifications

• Bachelors degree in engineering, operations management, business, or a related technical field.
• 3+ years of experience in project planning, integrated master scheduling, or operations engineering.
• Proficiency with Smartsheet, Microsoft Project, Primavera, or comparable scheduling tools.
• Strong grasp of critical-path analysis, risk assessment, and work breakdown structures.
• Demonstrated ability to manage multiple complex projects in a fast-paced, cross-functional environment.
• Exceptional attention to detail and clear written and verbal communication skills.

Preferred Skills and Experience

• Experience with first-of-a-kind engineering projects or defense hardware production.
• Familiarity with hypersonic or missile-system development life cycles.
• Background in government acquisition programs and contractual reporting (e.g., CDRLs, IMS).
• Experience integrating third-party schedules and external supplier data into a master plan.
• Active Top Secret/SCI clearance.

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We design, build, and test next generation weapon systems to give America and its Allies a definitive edge in defense capabilities.

Automation and Controls Engineer

The Automation and Controls Engineer will design, build, and commission robust manufacturing systems for production of hypersonic-flight components.

Success requires a practical application of engineering principles to design, build, test, and commission process hardware, integrate new technologies into our production line, and integrate process equipment and technologies within our production line. We are seeking a hands-on problem solver with strong expertise in electro-mechanical system design and automation systems, as well as experience working with machinery and production environments.

The key to excelling in this position is the effective application of mechanical, electrical, and control systems expertise to enable our manufacturing processes.

Responsibilities

• Design, build, customize, and test hardware and control systems for integration into composite manufacturing equipment balancing process requirements, cost and leadtime considerations.
• Partner with mechanical, materials, and manufacturing engineering teams to align on hardware requirements and design solutions.
• Mature manufacturing processes via the implementation of process control systems and procedures to ensure production consistency and reliability.
• Work with suppliers and vendors to define specifications and ensure on-time delivery of equipment for production needs.
• Troubleshoot hardware malfunction issues to minimize downtime and improve operations.
• Provide guidance and implement robust plans for hardware maintenance and calibration to ensure reliable operation of the manufacturing equipment.

Basic Qualifications

• Bachelor’s degree in mechanical engineering, electrical engineering, aerospace engineering or industrial engineering.
• 2+ years of experience in a fast-paced aerospace, automotive, or manufacturing production environment.
• Experience identifying, trouble shooting and rectifying complex manufacturing issues involving multiple production resources in a deadline driven environment.
• Understanding of manufacturing processes (machining, welding, forming, composites).
• Strong mechanical aptitude and willingness to engage in hands-on work to test and implement ideas.
• CAD / CAM (Siemens NX).
• Computer Programming (Python, C, NodeJS, HTML, CSS).

Preferred Skills & Experience

• Master’s degree in mechanical engineering, electrical engineering, aerospace engineering or industrial engineering.
• 4+ years of experience in a fast-paced aerospace manufacturing and production environment.
• Automation (PLC programming, Industrial Robotics).
• CNC Machining.
• IoT / Connected factory concepts.
• Networking skills.

Leadership Qualities

• Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to work independently and resolve minor issues in development with minimal oversight and support.
• High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.
• Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

HIMARS Specialist

The HIMARS Specialist will serve as Castelion’s internal subject matter expert (SME) on HIMARS employment, operations, and tactical integration. This individual will translate firsthand operational experience into actionable guidance for engineering, manufacturing, testing, and customer engagement teams.

You will play a critical role in ensuring our systems are intuitive, survivable, rapidly employable, and aligned with how warfighters actually operate.

Responsibilities

• Serve as the internal SME on HIMARS operations, tactics, techniques, and procedures (TTPs)
• Provide operator-informed input into system architecture, human-machine interface (HMI), mobility concepts, and reload workflows
• Advise engineering teams on real-world constraints including crew ergonomics, field maintenance, deployment timelines, and survivability considerations
• Support design reviews to ensure operational realism is embedded in system decisions
• Participate in field tests, live fire events, and mobility demonstrations to evaluate usability and mission flow
• Assist Business Development and Program teams with customer engagement, CONOPS development, and operational briefings
• Develop training concepts and documentation rooted in real operational experience
• Identify capability gaps and improvement opportunities based on firsthand system use

Basic Qualifications

• Prior experience operating the M142 HIMARS in an operational military environment
• Deep understanding of HIMARS crew operations, mission planning, reload procedures, and fire mission execution
• Experience in deployed, training, or live-fire environments
• Ability to communicate operational insights clearly to engineering and technical teams
• Active U.S. security clearance or ability to obtain one

Preferred Skills and Experience

• Experience serving as Section Chief, Platoon Sergeant, Fire Direction Specialist, or similar leadership role
• Instructor or evaluator experience within a HIMARS unit
• Exposure to joint fires integration and coordination with higher-echelon fire control systems
• Familiarity with modern digital fire control and targeting workflows
• Experience supporting acquisition, test, or modernization efforts

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion’s mission and consistently look for ways to contribute to the company’s technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.