Holmberg Mechanical Jobs in Usa
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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.
L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Job Title: Lead, Mechanical Engineering - Thermal Analyst
Job Code: 33517
Job Location: Wilmington, MA
Job Schedule: 9/80 (Every other Friday off!)
Relocation: Relocation assistance is available to qualified applicants
Job Description:
L3Harris has an opportunity for a highly skilled Thermal Analyst to join our talented engineering organization. The Thermal Analyst will be a technical leader across multidisciplinary teams of engineers to create the best overall system design including thermal design, analysis, and test of optical systems operating in harsh space and ground environments. The candidate will possess in-depth understanding of aerospace thermal engineering technology and payload architectures for spacecraft sub-systems and instruments. These talents are used to direct and oversee teams who specialize in conductive, convective, and radiative analyses, understanding of heat pipes, radiative heat transfer, and thermal control hardware design (thermal blankets, surface treatments, heater tapes, thermistors) and the interaction with optical structures in order to minimize optical errors, and achieve operational temperatures. The role requires utilizing state of the art custom software in conjunction with Thermal Desktop and Finite Element Analysis (FEA) packages and often mentor other Thermal Analysts in the use of such tools.
Essential Functions:
- System level thermal design & development, payload level integration and test, and risk mitigation for space-based environments
- Perform thermal design and analysis tasks on complex mechanical hardware including precision mechanisms, electro-mechanical devices, aerospace mechanism design, complex electronics packaging, supporting space-based deployable mechanisms, avionics, innovative thermal and ground based systems
- Create and analyze design concepts using thermal analysis software & FEA
- Defines and establishes the technical approach to meet assigned objective
- Directs, coordinates and provides assistance to engineering team in order to meet assigned objectives
- Program support also includes requirements derivation and verification, system architecture development, loads derivation, trade studies, design sensitivity/optimization studies, preliminary and final design analysis, generation of analysis documentation (including presentation materials, and deliverable data packages), and leading system test activities
- Organization of thermal design and analysis as an IPT lead; frequently interfacing directly with customer technical leads and management.
- Prepares reports, formal documentation and presentation materials summarizing analysis results and present results to both external and internal groups, including leadership and customers
- Participates in and present information for Preliminary Design reviews (PDR), Critical Design Reviews (CDR) and Technical Interchange Meetings (TIM)
- Interfaces with outside suppliers/customers and other engineering disciplines to drive designs to closure (Structural, Systems Engineering, Electrical, Manufacturing, Performance, Quality, Configuration Management)
- Presents design details at program reviews to customers and independent reviewers
- Development of thermal test plans to manufacture and test payload sensor systems
- Support new business opportunities
- Mentor junior level engineers
Qualifications:
- Bachelor’s Degree in Mechanical Engineering or other related engineering or science degree and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 years of prior related experience
- 7+ years of professional experience using thermal analysis tools such as Thermal Desktop (preferred), Sinda, Flotherm, Icepak, etc.
- 4+ years of providing technical leadership to a multi-disciplinary mechanical engineering team through system requirements, design, analysis, test, hardware build, delivery and launch
- Professional experience with thermal analysis of mechanical and electronic systems, in space, air or ground environments
- Professional experience with thermal vacuum testing
- Ability to obtain and maintain a U.S. TS/SCI Security Clearance
Preferred Additional Skills:
- Experience with finite element analysis software
- Able to support design decisions with well documented engineering analyses and calculations
- Able to analyze problems and to focus and drive down to the root cause of problems quickly
- Experience in leading engineering teams from conceptual through detailed design phases
- Experience as a lead engineer, project engineer, or IPT lead is a plus.
- Experience with Microsoft office tools (Word, Excel, PowerPoint, etc.)
- Active TS/SCI clearance
In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is $122,000.00 - $227,000.00. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.
L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.
Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.
By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.
L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.
Brock11 is partnering with a leading, full-service construction and facility solutions provider headquartered in Northwest Ohio to identify a Mechanical Preconstruction Leader for its North Ridgeville operations.
This well-established organization has been delivering comprehensive construction, design-build, energy, and facility maintenance solutions since the mid-1950s. Operating through a unified team of specialized companies, they serve as a single-source partner for clients across commercial and industrial markets—supporting projects from site selection and financing through construction, renovation, and long-term facility management.
Position Overview
The Mechanical Preconstruction Leader is responsible for leading all mechanical estimating and planning activities during the preconstruction phase of commercial and industrial projects. This role ensures accurate budgeting, thorough constructability reviews, and strategic value engineering across process piping, HVAC, plumbing, and related mechanical systems.
The ideal candidate is both technically strong and collaborative, with the ability to guide preconstruction efforts that result in cost-effective, high-quality project outcomes.
Key Responsibilities
- Develop detailed mechanical estimates and budgets for commercial and industrial projects.
- Review mechanical drawings and specifications to ensure accuracy and constructability.
- Collaborate with design teams, owners, and trade partners to optimize scope, cost, and schedule.
- Lead value engineering initiatives to identify cost-saving opportunities without compromising quality.
- Conduct risk assessments and contribute to procurement strategies.
- Maintain preconstruction schedules and ensure timely delivery of mechanical estimates.
- Build and maintain strong relationships with clients, partners, and internal stakeholders.
Qualifications & Skills
- Strong knowledge of process piping, HVAC, plumbing, and mechanical systems.
- Experience with BIM and virtual design tools.
- Familiarity with sustainable building practices and LEED certification.
- Design-build or integrated project delivery experience preferred.
- Proficiency in estimating software and Microsoft Office Suite.
- Experience with Accubid estimating software is a plus.
- Excellent communication, leadership, and collaboration skills.
Education & Experience
- Bachelor’s degree in Mechanical Engineering, Construction Management, or related field preferred.
- 5+ years of experience in mechanical estimating or preconstruction.
This is an excellent opportunity to join a respected, growth-oriented organization known for delivering integrated construction and facility solutions with a strong commitment to quality, innovation, and long-term client partnerships.
Mechanical Estimator, Mission Critical (AFG)
Location: Kansas City, MO, US, 64106 Tempe, AZ, US, 85281 Atlanta, GA, US, 30339 Omaha, NE, US, 68118 Austin, TX, US, 78704 Beaverton, OR, US, 97008
Best People + Right Culture. These are the driving forces behind JE Dunn’s success.
By hiring inspired people, giving them interesting and challenging work, enabling them with innovative tools, and letting them share in the company’s rewards, we’ve found a sustainable way to grow in our industry for the last 100+ years.
Our diverse teams around the country strive to enrich lives through inspired people and places everyday, and we need inspired people like you to join us in our pursuit of building perfection.
JE Dunn’s Advanced Facilities Group (AFG) combines Mission Critical, Advanced Industries, and Industrial & Manufacturing into one high-performing team focused on cutting-edge work to serve innovative clients on large Industrial & Manufacturing, Data Center, and Semiconductor projects. As part of the Advanced Facilities team, you'll work on some of the most advanced construction projects across the country, growing your career alongside our diverse team of industry professionals.
ROLE SUMMARY
The Mechanical Estimator will complete increasingly complex mechanical and field construction activities. This position will be responsible for collecting and assembling data, developing estimates and generating systems and bid analysis. All activities will be performed in support of the strategy, vision and values of JE Dunn.
ESTIMATOR FAMILY – CORE
- Learns and actively participates in all aspects of the company’s safety and quality plans and culture by demonstrating commitment to an injury-free environment through individual actions and mentoring others.
- Completes entry level and routine mechanical and field construction activities.
- Learns how to develop budgetary M/E estimates, based upon program and schematic design information using automated M/E estimating system.
- Assists in the review of mechanical options as part of the preconstruction process and completes systems analysis for select projects.
- Learns to develop the mechanical scopes of work used to coordinate during the bid process.
- Assists in the completion of bid analysis and provides input during the subcontractor selection process.
- Assists in developing sequencing requirements of various systems and providing solutions to meet the schedule requirements.
- Gains knowledge of design documents in order to identify potential quality problems to assist in developing constructability review reports.
- Learns to perform job inspections to ensure specifications and expectations are met and work is completed in a quality and timely manner.
- Learns and assists with the shop drawing/submittal process to comply with the contract documents.
- Assists with the commissioning process including developing pre-functional checklists, functional testing procedures and actual functional testing.
- Leads, supports and promotes a culture of diversity and inclusion within JE Dunn. Understands JE Dunn’s policy of non-discrimination and ensures positive, proactive implementation throughout the organization.
In addition, this position will be responsible for the following:
- Completes increasingly complex mechanical and field construction activities.
- Develops budgetary M/E estimates, based upon program and schematic design information.
- Reviews mechanical options, completes systems analysis, recommends best system for the project and provides value engineering suggestions.
- Coordinates the mechanical and electrical scopes of work during the bid process.
- Develops sequencing requirements of various systems and provides solutions to meet the schedule requirements. Provides scheduling input during projects.
- Reviews design documents and identifies potential quality problems. Helps develop quality control programs.
- Performs job inspections at various times in the project to ensure specifications and expectations are met and work is completed in a quality manner.
- Develops pre-functional checklists and functional testing procedures. Verifies contractor’s performance of functional test.
- Reviews and approves shop drawings prior to submitting to design team.
- Generates and issues the Commissioning Plan for approval to the appropriate parties.
- Verifies deficiencies are corrected and submits commissioning documentation to owners.
- Provides mentoring to less experienced co-workers.
- Creates M/E tools and innovative solutions to continuously improve processes and work products.
- Leads, supports and promotes a culture of diversity and inclusion within JE Dunn. Understands JE Dunn’s policy of non-discrimination and ensures positive, proactive implementation throughout the organization.
KNOWLEDGE, SKILLS & ABILITIES
- Ability to perform work accurately and completely, and in a timely manner.
- Communication skills, verbal and written (Intermediate).
- Proficiency in MS Office (Intermediate).
- Ability to read and understand plans, drawings and specifications.
- Develops proficiency in basic JE Dunn construction M/E tools and software.
- Knowledge of means and methods of construction management.
- Ability to build relationships and collaborate within a team, internally and externally.
EDUCATION
- Bachelor’s degree in mechanical engineering, electrical engineering, architectural engineering or related field (Required).
- In lieu of the above requirements, equivalent relevant experience will be considered.
EXPERIENCE
- 5+ years construction and/or engineering experience (Preferred).
WORKING ENVIRONMENT
- Valid and unrestricted drivers license required
BENEFITS INFORMATION
The benefits package aligned to this position is Professional Non-Union. Click here for benefits details.
This role is expected to accept applications for at least three business days and may continue to be posted until a qualified applicant is selected or the position has been cancelled.
JE Dunn Construction is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer and it is our policy to provide equal opportunity to all people without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, citizenship status, sex, sexual orientation, gender identity or any other legally protected category. JE Dunn Construction is a background screening, drug-free workplace.
JE Dunn provides reasonable accommodations to qualified individuals with disabilities. If you would like to request a reasonable accommodation in order to apply for a job, please submit your request to
JE Dunn Construction Company does not accept unsolicited resumes from search firms or agencies. Any resume submitted to any employee of JE Dunn Construction without a prior written search agreement will be considered unsolicited and the property of JE Dunn Construction Company. Please, no phone calls or emails.
Driven by a unique Purpose, Culture, and Value Delivery Model, we enable meaningful connections between talented professionals and forward-thinking organizations.
Since our formation in 2002, organizations across commercial and public sectors have been trusting us to help build their teams with exceptional temporary and permanent talent.
Visit us at to learn more and view our open positions.
Please apply or call one of us to learn more For further inquiries about this opportunity, please contact our Talent Specialist, Hari, at (224) 507-1278 .
Title
- Mechanical Drafting/CAD Technician II Duration: 12 Months (with potential for contract extension based on performance and CAD team needs) Location: On-site at Concord, NC (Hybrid schedule possible after fully trained) Work Environment: A hybrid work schedule is available, although significant time will be required to set it up (approx.
1 2 days onsite weekly depending on project needs).
Monday
- Friday, 8 am-5 pm base schedule High in-plant presence during the first 1 2 months (approx.
4 days/week).
Work Mode Onsite Hybrid o Heavy onsite work at the beginning (hands-on measurement and equipment familiarization).
o Hybrid flexibility later during modeling phases.
Only W2 candidates are eligible for this position.
Third-party or C2C candidates will not be considered.
Description: Summary: As a member of the Downstream Platforms and Technology department, you will lead the drafting activities for a development program, creating, documenting, and managing electronic drawing files (Autodesk Inventor and AutoCAD) for custom-designed process equipment located in numerous worldwide Client Optical Fiber and Cable manufacturing locations.
In this role, you will take ownership of preliminary mechanical drawing packages from Engineering/Development and integrate them across multiple equipment configurations while maintaining equipment standardization and company drafting standards.
Complete all drafting work required for each drawing set before release into Autodesk Vault.
Drafting tasks include creating 3D models and associated drawings, as well as revising existing models and drawings, in accordance with company drafting standards.
Typical deliverables include detail, sheet metal, weldment, and assembly drawings.
Design mounting systems and layouts for mechanical, electrical, and pneumatic components, ensuring proper serviceability, usability, and integration within the overall system.
On-site presence is required to document existing system configurations on the production floor.
Hands on skills are desired to capture measurements, identify components, and develop an understanding of basic system functions Key Responsibilities: Create 2D drawings from existing 3D models.
Create 3D models of new components.
Collect data from engineering teams and incorporate information into appropriate drawings Collect measurements/information from the production floor to incorporate into drawings Submit drawing packages to be released through the Engineering Change Request (ECR) process.
Ensure all drawing packages comply with industry standards and safety regulations.
Required Education: Candidates should possess one of the following, but other technical degrees with demonstrated skills in drafting will be considered: A.A.S.
Mechanical Engineering Technology degree A.O.S.
Drafting/CAD degree Drafting Certificate/Certification Candidates without degrees must demonstrate proficiency in 2D and 3D drafting.
Required Experience and Skills: Minimum of 2 years of professional experience in the mechanical drafting field Working knowledge of ASME/ANSI drafting standards General Windows-based computer skills Proficient in the use of Autodesk Inventor and Autodesk Vault software Able to adapt to company standards and guidelines Ability to use basic measurement tools Strong work ethic Strong attention to detail Creative thinking Ability to safely operate and perform assigned tasks within a production environment Top 3 Required Skills 1.
Strong 2D Mechanical Drafting Experience o AutoCAD or Autodesk Inventor preferred.
o Must follow rigid industry and internal drafting standards.
2.
3D Modeling Experience o Any platform acceptable (SolidWorks, Inventor, etc.).
o Must model new components, modify brackets, hole spacing, layouts, etc.
3.
Hands-On Production Floor Experience o Ability to work safely on the production floor.
o Must use calipers, micrometers, tape measures to capture measurements directly from equipment.
o Confident interacting with technicians and operators.
Nice-to-Have Skills Experience with equipment teardown, mechanical troubleshooting, or hands-on mechanical hobby work (e.g., 3D printing).
Familiarity with Autodesk Vault or similar drawing release systems.
Creative technical thinking and ability to work independently.
Portfolio of start-to-finish drafting packages.
Interview Process Round 1: 30 minute phone/video screen with: o Hiring Manager o Possibly with supervisor o CAD Technician leader (to assess CAD capability) Round 2: Quick in person meeting (onsite or lunch).
About us: DivIHN, the 'IT Asset Performance Services' organization, provides Professional Consulting, Custom Projects, and Professional Resource Augmentation services to clients in the Mid-West and beyond.
The strategic characteristics of the organization are Standardization, Specialization, and Collaboration.
DivIHN is an equal opportunity employer.
DivIHN does not and shall not discriminate against any employee or qualified applicant on the basis of race, color, religion (creed), gender, gender expression, age, national origin (ancestry), disability, marital status, sexual orientation, or military status.
Autodesk Inventor, Autodesk Vault software, 2D drafting, ASME/ANSI, 3D drafting
Date Posted:
2026-02-02Country:
United States of AmericaLocation:
US-AZ-TUCSON-M10 ~ 3360 E Hemisphere Loop ~ BLDG M10Position Role Type:
OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements:
Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearanceSecurity Clearance Type:
DoD Clearance: SecretSecurity Clearance Status:
Ability to obtain INTERIM U.S. government issued security clearance is required prior to start dateAt Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.
The Mechanical Engineering group in the Shipboard Effectors Department is currently searching for an experienced Mechanical Design Engineer to work on a multi-discipline team to support design and upgrades of Shipboard Effectors products and subsystems.
This is an onsite role and located in Tucson, AZ.
What You Will Do:
Utilizing strong mechanical hardware design experience and knowledge with ruggedized structures, interconnects, cooling, and electronics integration
Supporting all phases of programs from capture and concept development through production
Developing technical solutions to a wide range of complex problems related to the entire product life cycle including proposal, design, manufacture, integration and test of electronics for multiple military programs
Supervising the definitions of mechanical outline and construction details, component selection and specification, mechanical and assembly drawings, electrical/RF layout, and delivering the final technical data package
Employing transition-to-production practices with the ability to lead a design release into production
Tracking, reporting, and meeting cost, schedule, quality, and performance requirements for the finished product, including Earned Value (EV) management and Estimate at Complete (EAC) inputs
Preparing proposal inputs on behalf of the product area
Providing technical conscience, challenged with making sure the product and process meet appropriate standards and requirements while helping to remove roadblocks
Working with minimal direction or supervision, while exercising considerable latitude in determining the technical objectives of the assignment while meeting cost, schedule, quality, and performance requirements for the finished product.
Leading a small team of mechanical engineers when required
Interacting frequently with senior personnel, occasionally including external customers, on significant technical matters often requiring coordination between organizations.
Qualifications You Must Have:
Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or An Advanced Degree in a related field and minimum 5 years experience.
A minimum of eight (8) years of experience in the design of electronics packaging for military or aerospace or commercial applications
Experience with GD&T (Geometric Dimensioning & Tolerances)
The ability to obtain and maintain a US security clearance prior to the start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance
Qualifications We Prefer:
Experience with ANSI drawing standards and/or first order or structural analysis techniques.
Experience with design to military standards
Strong technical background with high technical aptitude
Strong leadership skills and project management, sub contract management experience
Experience with CREO (Pro/E) or similar 3D solid modeling software
Cognizant of machine suppliers’ capabilities or have direct experience in a manufacturing and assembly support role for producibility
Familiarity with the design and manufacturing processes of CCAs, mechanical/RF components, metal housings, structures, and electronics assemblies
Must have a working knowledge of Microsoft Office (Word, Excel, PowerPoint)
Very strong verbal and written communications and interpersonal skills when working with team members and customers
Advanced degree in Mechanical, Electrical or Aerospace Engineering
What We Offer
Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.
Learn More & Apply Now!
RTX solves some of the toughest challenges in aerospace and defense. That requires expansive thinking and bold innovation.
Please consider the following role type definition as you apply for this role.
Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.
The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
Privacy Policy and Terms:
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Mechanical Engineer – Aerospace Thermal Management Systems (Integration & Packaging)
Location: Onsite – Irvine CA
Industry: Aerospace & Defense
Duration: 6 months and extendable
Role Overview
We are seeking two highly skilled Mechanical Engineers with experience in the Aerospace & Defense sector to support the development and integration of advanced thermal management subsystems used across military and commercial platforms globally.
This role focuses on mechanical subsystem development from a packaging and integration perspective, including enclosure design and integration of electronic and fluid control components such as pumps, compressors, fans, and valves. The ideal candidate has hands-on experience developing aerospace-grade subsystems within defined volume and interface constraints, ensuring high reliability, environmental robustness, and compliance with industry standards.
These roles will support programs progressing from Preliminary Design Review (PDR) toward Critical Design Review (CDR) and will involve reuse and adaptation of existing product architectures.
Key Responsibilities
- Design and develop mechanical enclosures for aerospace electronic and control subsystems such as thermal management systems and related subsystems
- Package and integrate COTS and custom components into customer-defined volume constraints by integrating components including pumps, compressors, fans, valves, and control electronics
- Develop detailed CAD models, assemblies, and manufacturing drawings (SolidWorks preferred)
- Conduct tolerance analysis, GD&T, stack-up analysis, and design for manufacturability (DFM)
- Support prototype builds, integration activities, testing, and validation
- Implement design considerations to satisfy and qualify the environmental requirements (shock, vibration, temperature, humidity, EMI/EMC interface considerations) per MIL standards.
- Collaborate with electrical, controls, thermal, structural, and systems engineering teams
- Participate in root cause analysis and design refinement
- Ensure compliance with aerospace and defense standards and documentation practices
Required Qualifications
- Bachelor’s degree in mechanical engineering or equivalent.
- 5+ years of experience in Aerospace & Defense mechanical subsystem development
- U.S. Citizen (No Dual Citizenship)
- Strong mechanical packaging and integration experience
- Experience designing enclosures housing electronics and fluid/mechanical components
- Exposure to thermal management systems (ECS, vapor cycle, or liquid cooling preferred but not mandatory)
- Working knowledge of rotating machinery components (fans, compressors, pumps)
- Proficiency in CAD tools (SolidWorks preferred; strong experience in other platforms acceptable)
- Experience with GD&T and tolerance analysis
- Familiarity with aerospace environmental standards (MIL-STD preferred)
- Experience supporting qualification and validation testing
- Strong understanding of materials selection for aerospace applications
- Ability to work in cross-functional engineering teams
Preferred Qualifications
- Experience packaging turbomachinery components within constrained aerospace envelopes
- Exposure to controls systems integration
- Knowledge of vibration isolation and shock mitigation techniques
- Experience supporting PDR/CDR processes
- Familiarity with configuration management and aerospace documentation rigor
- Exposure to FMEA, reliability analysis, and lifecycle support
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.
Senior Manufacturing Engineer - Mechanisms/Test
Castelion is seeking an expert in the manufacture and design of complex mechanisms for our in-house hypersonic vehicle development. This role will work closely with design engineering and technician teams to build and execute on testing and validation efforts to keep pace with the research and development timetable of our products. You will be apart of a team responsible for serving as a critical node in implementing feedback from testing and validation efforts, streamlining designs and implementing manufacturing changes to quickly mature our products for flight testing and production. Desire for product and process ownership is a must in this role.
Responsibilities
- Work with component design engineering teams to determine the manufacturing and testing feasibility of products
- Operate as a standalone resource responsible for a family of mechanisms
- Architect, mature and develop testing and validation procedures for a wide array of complex mechanisms
- Generate concept proposals in alignment with R&D efforts to help attribute requirements gathering
- Down select solutions generated based on quantifiable vehicle attributes, system cost and weight
- Propose and defend solutions in engineering review meetings
- Develop and refine process documentation including build instructions, test and validation procedures, health and safety standards, and mBOMs
- Create, maintain, and communicate detailed production plans and schedules
- Work closely with supply chain to develop new and existing suppliers as needed
- Design, develop and implement production tooling and equipment
- Participate in design reviews to drive design for manufacturing (DFM)
- Oversee introduction and implementation of new products and manufacturing capabilities
- Analyze and resolve manufacturing issues and non-conformances
- Develop, mentor, and train peers and colleagues
Basic Qualifications
- Bachelor’s degree in mechanical, aerospace, or manufacturing engineering, or other technical degree.
- 5+ years of mechanisms manufacturing, testing and validation experience
- Experience with operations/product line management
- Demonstrated direct or indirect leadership
- Proficiency in CAD/CAM software (NX preferred)
- Experience in selection, procurement, and implementation/validation of manufacturing equipment
Preferred Qualifications
- Experience in mechanisms design, testing and validation from high volume production environments
- Experience developing comprehensive testing and validation procedures and the required documentation processes
- Experience in qualification and acceptance testing of complex aerospace mechanisms
- Working experience with capacity modeling, process mapping, Lean/Six Sigma and value stream mapping
- Experience in transitioning development processes to rate production
Additional Requirements
- Must be willing to work extended hours and/or weekends as needed
- Must be able to travel up to 10%
- All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medial, 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.
Hiring: Construction Manager 5 (Mechanical) – Mission Critical Data Center | Onsite | Boydton, VA
We are seeking an experienced Construction Manager (Mechanical) to support a ground-up, mission-critical data center construction project in Boydton, VA. This role will lead and oversee the mechanical scope of the build, ensuring quality, compliance, and successful system turnover.
Location: Boydton, VA (Onsite)
Duration: 12 months (Strong potential for extension)
Key Responsibilities
Engineering & Design Review
- Review mechanical design documents, specifications, and IFC packages
- Validate compliance with ASHRAE, IMC, ASME, NFPA, AHJ, and manufacturer standards
- Respond to RFIs and evaluate equipment submittals & shop drawings
Construction Phase Oversight
- Conduct field walks to verify installation compliance
- Oversee equipment placement, anchorage, vibration isolation, and safety
- Monitor piping fabrication, welding QA/QC, and pressure testing
- Manage installation sequencing and constructability reviews
QA/QC & Compliance
- Review inspection reports, weld maps, hydro tests, and flushing plans
- Validate redlines and built conditions for turnover documentation
- Audit contractor performance and track corrective actions
Coordination & Integration
- Lead MEP coordination across electrical, structural, civil, plumbing, and controls
- Support BIM coordination and clash resolution
- Ensure integration with UPS rooms, battery rooms, and data halls
Commissioning & Turnover
- Review commissioning scripts and procedures
- Witness functional testing, equipment startup, CHW balancing, and BAS testing
- Support IST, punch list closure, and final turnover
Project Scope
Mechanical systems include:
- Chilled water generation & distribution
- CRAH/CRAC units
- AHUs
- Evaporative cooling & heat rejection equipment
- Mechanical piping systems (CHW, CW, HHW, CDW, fuel)
- BAS controls
- Ventilation & pressurization systems
- Fire protection coordination
This is a ground-up hyperscale data center build, supporting all phases from design review through final commissioning and turnover.
Candidate Requirements
- 10+ years of construction experience (mission critical/data center preferred)
- Strong Mechanical background
- Hands-on experience with BAS systems
- Solid construction management experience
- Preferred local candidates
Top 3 Must-Have Skills (Ranked):
1⃣ BAS experience
2⃣ Mechanical systems expertise
3⃣ Construction management experience
Dexian is a leading provider of staffing, IT, and workforce solutions with over 12,000 employees and 70 locations worldwide. As one of the largest IT staffing companies and the 2nd largest minority-owned staffing company in the U.S., Dexian was formed in 2023 through the merger of DISYS and Signature Consultants. Combining the best elements of its core companies, Dexian's platform connects talent, technology, and organizations to produce game-changing results that help everyone achieve their ambitions and goals.
Dexian's brands include Dexian DISYS, Dexian Signature Consultants, Dexian Government Solutions, Dexian Talent Development and Dexian IT Solutions. Visit to learn more.
Dexian is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race, religion, sex, sexual orientation, gender identity, age, national origin, ancestry, citizenship, disability, or veteran status.
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Our client, a specialty contractor focused on mechanical insulation, is seeking an experienced Construction Project Manager to join their East Petersburg, PA branch.
In this role, you will oversee commercial, industrial, institutional, and government projects across Central & North Eastern Pennsylvania, Baltimore, and Washington, DC. The focus is on developing relationships, identifying new opportunities, and managing multiple mechanical insulation projects across diverse markets—including manufacturing facilities, institutional buildings, power plants, and other heavy industrial installations.
The Project Manager will serve as the primary client contact, overseeing estimating, proposal development, contract negotiations, and project execution. You will coordinate with branch and field teams, owners, general contractors, and other trades to ensure projects are delivered on time, within budget, and to client expectations. This role is ideal for a business-minded Project Manager who thrives on building relationships, growing accounts, and leading projects from proposal to completion.
If you have experience in mechanical insulation or mechanical contracting and want to join a growing industry leader expanding across Central & North Eastern Pennsylvania, Baltimore, and Washington, DC, we encourage you to apply!
Key Responsibilities
- Build and maintain long-term customer relationships, acting as primary point of contact throughout project lifecycle.
- Identify new opportunities through networking, client meetings, and prospecting to grow accounts and expand company presence.
- Develop sales strategies for target accounts and bid strategies for key projects.
- Solicit bid packages and procure drawings and specifications for qualified opportunities.
- Attend pre-bid meetings to clarify scope, specifications, and site conditions.
- Interpret specifications and perform material take-offs, focused on mechanical insulation projects.
- Prepare project schedules and proposals, including pre-bid reviews and go/no-go decisions.
- Oversee material and submittal preparation as required by contract conditions.
- Maintain regular communication with customer points of contact regarding project status, schedule, and potential impacts.
- Maintain job control systems, cost codes, accounting entries, and accurate invoicing.
Requirements
- 5+ years in mechanical insulation or mechanical contracting for commercial, industrial, or institutional construction projects.
- Proven experience developing new business, growing accounts, and managing client relationships.
- Full lifecycle project management experience, including estimating, scheduling, budget management, and field oversight.
- Comfortable working closely with general contractors, subcontractors, and field teams.
- Experience reading and interpreting mechanical and architectural drawings and specifications.
- Self-motivated, able to plan, prioritize, and execute with minimal supervision.
- Strong problem-solving, decision-making, and communication skills.
- Willingness to travel frequently across assigned territory.
Location: East Petersburg, PA
Travel: Frequent travel across Central & North Eastern PA, Baltimore, and Washington, DC
Benefits: Car allowance, mileage reimbursement, Medical, Dental, Vision, 401(k) with match, PTO, Life and AD&D, Short- and Long-Term Disability, annual performance review, Bonuses and Profit incentives
If this aligns with your experience and career goals, please apply and one of our recruiters will be in touch.
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Job Title: Mechanical Engineer – Product Validation / DVP
Location: Sunnyvale, CA
Role Overview
We are seeking an experienced Mechanical Engineer to lead the Design Verification Plan (DVP) and validation activities for complex product systems. The role involves managing and executing mechanical, environmental, and electrical validation testing while working closely with internal teams and external test houses.
The ideal candidate will have strong hands-on prototyping and fixture design experience and the ability to independently drive validation programs in a fast-paced engineering environment.
Key Responsibilities
- Lead the Design Verification Plan (DVP) for product validation and testing.
- Plan and execute structural testing including vibration, shock, and impact tests.
- Conduct environmental testing such as temperature, humidity, ingress protection, and solar load validation.
- Coordinate testing activities with external test labs and test houses.
- Design and build test fixtures, jigs, and setups for validation and reliability testing.
- Perform hands-on prototype builds and mechanical test setups.
- Analyze test results and perform root cause analysis for product failures.
- Ensure validation coverage across the entire product system including electrical and mechanical components.
- Collaborate with cross-functional teams to support product development and validation timelines.
- Work independently to drive testing programs in a fast-paced engineering environment.
Required Qualifications
- Bachelor’s degree in Mechanical Engineering or related field.
- 5+ years of experience in product validation, testing, or reliability engineering.
- Strong experience developing and managing Design Verification Plans (DVP).
- Hands-on experience with structural testing (vibration, shock, impact).
- Experience with environmental testing (temperature, humidity, ingress, solar load).
- Experience designing test fixtures and jigs for validation testing.
- Ability to perform root cause analysis for product failures.
- Strong understanding of mechanical systems and product-level validation.
Preferred Skills
- Experience working with external test houses and certification labs.
- Background in hardware product development environments.
- Ability to work independently and manage multiple validation tasks.