Engineering Journal Jobs in Atherton, CA

Job Title: Engineering Manager

Department: Manufacturing / Engineering

Reports To: VP of Manufacturing Operations

Location: Newark

Position Summary: The Engineering Manager leads manufacturing engineering activities to ensure hardware products are effectively designed, transitioned, and scaled into production. They oversee PCB assembly processes, drives design for manufacturability and testability, manages a team of manufacturing engineers, and coordinates cross-functional collaboration across engineering, product, and manufacturing partners. The position also supports ECO implementation, manufacturing documentation, cost optimization, continuous improvement, and root cause analysis to ensure high-quality, on-time product delivery.

Key Responsibilities

Oversee the planning, directing and coordinating the manufacturing all aspects of Manufacturing Engineering activities with regard to Product build/Design for Manufacturability.

• Oversee the maximization and efficiency of transitioning hardware products from design into manufacturing.

• Manage the organization and direct workflow between the manufacturing engineering team and hardware development engineering groups to assure products meet industry standards to design for manufacturability and design for test.

• Oversee the development of the PCB assembly process to assure products are built to high standards of quality while meeting cost objectives.

• Manage the manufacturing engineers to ensure products are built to specification and assists in resolving technical issues that affect revenue plans relating to product shipments.

• Supports the Configuration Management System and ECO implementation.

• Manage and coordinate with multiple design groups in the New Product Development Process as it related to Manufacturing.

• Oversee the work with Product Management and other Engineering Teams to assist in the creation release and implementation of ECNs as well as assure revision consistency between the PLM, ERP and manufacturers systems.

• Oversee and monitor the generation of MPI documents for production.

• Provide support the creation of manufacturing quote.

• Provide support to management in terms to continuous improvement.

• Participate in root cause analysis for any defect products.

Experience and Skill Requirement:

• B.S. in Industrial Engineering, Mechanical or Electrical Engineering

• More than 5 years in managerial position in EMS industry.

• 6-10 years of PCBA Manufacturing and Design related engineering experience, performing both hands on and management roles in the field of hardware products such as servers, printed circuit assemblies, and mechanical chassis design, in circuit testing and compliance testing.

• Strong technical and analytical skills

• Excellent knowledge of industry best practice for mechanical design for manufacturability and testability. Ability to work with manufacturing from both an advisory and development role.

• Full understanding of product costing as it relates to component and manufacturing process selection. Knowledge of lean manufacturing techniques as well as design for six sigma.

• Operational knowledge of SMT processes and procedures, including PCB layout and fabrication, DFT, and DFM.

At Two Bear Capital we believe in partnering with our portfolio companies to build the best teams possible. We look forward to working with you and Rainfall Health on their new Director of Software Engineering role.

Director of Software Engineering (AWS Amplify & Digital Health)

*please note that this role requires willingness to travel to the Bay area and/or relocating to the Bay area

*please note that this position requires US citizenship/does not provide sponsorship

About Rainfall Health

Rainfall Health is an AI-powered compliance and workflow platform helping health systems succeed under CMS’s TEAM Model and other value-based care programs. We partner with hospitals, surgeons, and care teams to improve episode performance, streamline operations, and maximize reimbursement — all while supporting better patient outcomes.

Our platform sits at the intersection of clinical workflows, financial performance, and intelligent automation.

The Role

We are looking for a Director of Software Engineering with deep experience in AWS Amplify and modern cloud-native architectures to help build and scale our digital health platform. You’ll play a key role in designing secure, reliable systems that integrate with healthcare data sources and surface actionable insights to clinical and operational teams.

This role is ideal for someone who enjoys solving complex data and workflow challenges in a regulated healthcare environment.

What You’ll Do

Platform & Application Development

• Design, build, and maintain scalable web applications using AWS Amplify, serverless services, and modern frontend frameworks
• Develop robust APIs and backend services using AWS-native tools (e.g., AppSync, Lambda, DynamoDB, RDS)
• Ensure performance, reliability, and security across distributed cloud systems

Healthcare Data & Integrations

• Build and maintain integrations with Electronic Health Records (EHRs) and other healthcare systems
• Work with healthcare interoperability standards such as FHIR, HL7, and APIs from major EHR vendors
• Design data ingestion pipelines that normalize, validate, and securely store clinical and operational data

Data Visualization & Insights

• Develop interactive dashboards and data visualization tools for clinical and operational users
• Translate complex healthcare data into intuitive, actionable insights
• Collaborate with product and design teams to create user experiences tailored to care teams and administrators

Cross-Functional Collaboration

• Work closely with product managers, designers, and clinical stakeholders to deliver features aligned with real-world workflows
• Contribute to architectural decisions and technical roadmap planning
• Mentor other engineers and promote best practices in code quality, testing, and security

Security & Compliance

• Implement best practices for HIPAA-compliant infrastructure and data handling
• Ensure systems meet high standards for privacy, auditability, and reliability in a healthcare environment

What We’re Looking For

Required:

• 8+ years of software engineering experience building production-grade applications
• Hands-on experience with AWS Amplify and serverless AWS architectures
• Strong experience with modern JavaScript/TypeScript frameworks (e.g., React, Next.js, Vue)
• Experience building and consuming RESTful and/or GraphQL APIs
• Solid understanding of cloud security and best practices for handling sensitive data

Preferred:

• Experience in digital health, healthcare IT, or healthtech startups
• Experience integrating with EHR systems (Epic, Cerner, Meditech, etc.)
• Familiarity with FHIR, HL7, CCD, or other healthcare data standards
• Experience building data visualization tools (e.g., D3, Chart.js, Recharts, or BI tools)
• Knowledge of healthcare compliance frameworks (HIPAA, HITRUST, SOC 2)

Nice to Have

• Experience with real-time data pipelines or event-driven architectures
• Background in analytics, population health, or value-based care technology
• DevOps experience with CI/CD pipelines and infrastructure as code

What Success Looks Like

• Seamless, secure integrations with healthcare systems
• Intuitive dashboards that drive decision-making for clinical and operational teams
• A scalable, maintainable architecture that supports rapid product growth
• Strong engineering culture centered on reliability, security, and user impact

xLight is seeking a Director of Procurement to lead and scale our sourcing, supplier management, and procurement operations. This hybrid role requires close collaboration with engineering, manufacturing, and program teams and periodic on-site engagement to support supplier qualification, integration, and production readiness.

This position is ideal for a procurement leader experienced in highly technical, government-adjacent, or capital-intensive environments.

Key Responsibilities

• Define and execute procurement strategy supporting R&D, pilot production, and manufacturing scale-up
• Lead sourcing, supplier selection, negotiations, and long-term agreements for complex, engineered components and subsystems
• Manage supplier risk, including single-source dependencies, capacity constraints, and long-lead items
• Partner with engineering on should-cost modeling, make/buy decisions, and value engineering initiatives
• Establish procurement processes, controls, KPIs, and governance appropriate for a rapidly scaling technology company
• Build, mentor, and lead a high-performing procurement and supply chain team
• Collaborate cross-functionally with Engineering, Manufacturing, Quality, Finance, and Program Management
• Support compliance with contractual, regulatory, and export-control requirements
• Interface with government-funded program requirements as applicable

Required Qualifications

• Bachelor’s degree in Engineering, Supply Chain, Business, or a related discipline (Master’s preferred)
• 10+ years of progressive procurement or supply chain leadership experience
• Proven experience sourcing complex electromechanical, optical, vacuum, plasma, or precision-manufactured systems
• Strong contract negotiation skills with high-value, long-lead suppliers
• Experience operating in fast-paced, technically complex environments
• Familiarity with ERP/MRP systems and structured procurement processes

Preferred Qualifications

• Experience in semiconductor capital equipment, aerospace, defense, photonics, or advanced energy systems
• Background supporting DOE, NNSA, DOD programs, national laboratories, or federally funded R&D initiatives
• Experience in startup, scale-up, or first-of-a-kind manufacturing environments
• Understanding of government compliance, reporting, and audit considerations

Additional Information

• This is a full-time appointment.
• xLight offers a comprehensive compensation and benefits package with stock options, holidays, paid time off, medical, dental, vision, and life insurance and 401(k) retirement plan with company matching.
• In compliance with federal and state equal employment opportunity laws, qualified applicants are considered for all positions at xLight without regard to race, color, religion, sex, national origin, age, marital status, veteran status, disability, sexual orientation, or gender identity or any other basis protected by applicable federal, state, or local law.
• This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.
• To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Reasonable accommodations may be made to enable qualified individuals with disabilities to perform essential functions, absent undue hardship.
• Send resume and optional cover letter to

Equal Opportunity Statement

xLight Inc. is an Equal Opportunity Employer. Our policy is clear: there shall be no discrimination on the basis of age, disability, sex, race, religion or belief, gender reassignment, marriage/civil partnership, pregnancy/maternity, or sexual orientation. We are an inclusive organization and actively promote equality of opportunity for all with the right mix of talent, skills and potential. We welcome all applications from a wide range of candidates. Selection for roles will be based on individual merit alone.

Hi,

I hope this email finds you well. I have a job position; see below if you would like to consider replying back to me with your resume.

Job Title: Hardware Lead

Location: Mountain View, CA

Client : LTTS

Job Type: Full-Time

Position Overview

The Hardware Lead will be responsible for leading automotive hardware design and development activities, ensuring compliance with functional safety standards and delivering robust, production-ready electronic systems. The role requires extensive experience in analog and digital circuit design within the automotive domain, along with strong expertise in safety analysis and hardware validation methodologies.

The ideal candidate will have proven leadership capabilities, hands-on experience with ISO 26262, and prior exposure to Infotainment and/or Telematics systems.

Key Responsibilities

• Lead end-to-end hardware development lifecycle activities from concept through production release.
• Design and develop analog and digital electronic circuits for automotive applications.
• Ensure compliance with ISO 26262 Functional Safety standards across hardware development phases.
• Perform and oversee safety and reliability analyses including:
• Worst Case Analysis (WCA/WCCA)
• Hardware Design FMEA (DFMEA)
• FMEDA (Failure Modes, Effects and Diagnostic Analysis)
• Fault Tree Analysis (FTA)
• Conduct schematic reviews, component selection, and design validation activities.
• Support hardware integration, verification, validation, and production support.
• Utilize engineering tools such as Mathcad, Ansys Medini, and other industry-standard analysis tools.
• Collaborate closely with cross-functional teams including Software, Mechanical, System Engineering, and Validation teams.
• Provide technical leadership, mentorship, and guidance to hardware engineers.
• Ensure adherence to automotive quality processes and industry standards.

Required Skills & Experience

• Minimum 10 years of experience in Automotive Hardware Development.
• At least 2 years of experience in Infotainment and/or Telematics systems.
• Strong expertise in analog and digital circuit design for automotive ECUs.
• Hands-on experience in:
• Worst Case Analysis (WCA)
• Hardware DFMEA
• FMEDA
• FTA
• In-depth knowledge of ISO 26262 Functional Safety lifecycle.
• Experience working with automotive communication protocols (CAN, LIN, Ethernet – preferred).
• Proficiency in engineering and safety analysis tools such as Mathcad and Ansys Medini.
• Strong analytical, problem-solving, and leadership skills.
• Excellent communication and stakeholder management abilities.

Job Title: Plastic Tooling Engineer

Location: Newark, CA

Employment Type: Full-Time

Job Overview

We are seeking an experienced plastic tooling engineer to support the development of high-quality automotive components. In this role, you will contribute to a world-class vehicle engineering team by providing expertise in plastic tooling and injection molding processes. You will work closely with design engineers and suppliers to ensure tooling feasibility, manufacturability, and cost efficiency from the Design for Manufacturing (DFM) phase through product launch.

Key Responsibilities

• Support vehicle engineering teams with plastic tooling and polymer expertise throughout product development.
• Collaborate with design engineers and suppliers to evaluate tooling feasibility, DFM, efficiency, and cost optimization.
• Review and approve mold concepts, mold designs, and flow simulation studies before tool kick-off.
• Ensure all tooling designs comply with company tooling standards and maintain detailed documentation of the review and approval process.
• Provide guidance on injection molding processes and tooling technologies to ensure product quality and manufacturing robustness.
• Conduct on-site supplier visits and tooling audits to assess tool quality and condition.
• Lead injection molding process optimization and tool validation activities.
• Support cross-functional teams and represent the tooling team in communications with suppliers and internal stakeholders.
• Participate in tool cost estimation, change cost evaluation, and process improvement initiatives.

Required Qualifications

• Bachelor’s degree in Engineering or a related field.
• 5+ years of experience in plastic injection molding and tooling design evaluation.
• Strong experience reviewing DFM for injection molded parts, including automotive Class-A surface components.
• Deep knowledge of injection molding tooling technologies such as:
• In-mold decoration (IMD) / in-mold labeling (IML)
• Overmolding
• Back-injection
• Foaming processes
• Vario-thermal processes
• Experience reviewing flow simulation results using tools such as Autodesk MoldFlow or similar software.
• Hands-on experience with plastic injection molding process setup and optimization.
• Experience with tooling cost estimation and tooling change evaluation.
• Strong documentation, analytical, and communication skills.
• Ability to travel domestically and internationally up to 25%.

Preferred Qualifications

• Experience working in an automotive product development environment from concept to launch.
• Hands-on experience performing MoldFlow simulations, first tool trials, and tooling approvals.
• Experience with tool should-costing analysis and cost impact evaluation for design decisions.

The Role:

· Be a significant contributor to a world-class vehicle engineering team by supporting with plastics tool expertise and owning polymer-related aspects from part design for manufacturing (DFM) phase to product launch.

· Consultation with design engineers and suppliers throughout product development process, advising on process and tooling feasibility, DFM, efficiency and cost. The role ensures capability, robustness and cost-effectiveness of tool with sign-off.

· Evaluation of flow studies, mold concepts, and mold designs before tool approval and kick-off.

· Ensuring plastic tooling is compliant with Lucid Tool Standards, and documentation of review process.

· Support of internal non-engineering teams and representation of Lucid Tooling Team in communication with suppliers (incl. on-site visits).

· Leading on-site assessment of tool quality/condition, and driving injection molding process optimization.

Qualifications:

· B.S. in Engineering

· 5+ years’ experience, evaluating DFM and injection molding tool designs, including sign-off responsibility

· Excellent knowledge of injection tooling, including technologies such as in-mold decoration/labeling, foaming, overmolding, back-injection, vario-thermal processes

· Experience with DFM process for automotive A-surface parts

· Experience with flow simulation software (e.g. Autodesk MoldFlow), and ability to critically review simulation results

· Proven hands-on experience with plastic injection molding process, including process optimization

· Experience in tooling cost and tool change cost estimation

· Methodical approach to documentation

· Exemplary verbal and written communication skills

· Able to travel domestically and internationally up to 25% if needed

Advantageous:

· Worked in automotive development environment, ideally through complete product development process

· Hands-on experience with creation of MoldFlow studies, first tool trials, and tool approvals

· Experience with tool should costing to understand tool cost impact of part design choices

· Experience with other plastic manufacturing processes and their tooling (e.g. blow molding, thermal forming, vacuum forming, compression molding, slush molding)

· Experience auditing tool shops

ob Title: Hardware Design Engineer - Analog and Circuit design

Location: Mountain View, CA

Duration: Long Term

Job Summary

The Senior Hardware Design Engineer will be responsible for the design, development, and validation of automotive electronic hardware systems. The role requires strong expertise in analog and digital circuit design, automotive hardware development processes, and functional safety compliance per ISO 26262. The candidate will work closely with cross-functional hardware and system teams to deliver high-quality, safety-compliant automotive solutions.

Key Responsibilities

• Design and develop analog and digital electronic circuits for automotive applications.
• Execute complete automotive hardware development activities in alignment with industry standards and internal processes.
• Perform hardware safety analyses, including:
• Worst Case Circuit Analysis (WCCA)
• Design Failure Mode and Effects Analysis (DFMEA)
• Failure Modes, Effects, and Diagnostic Analysis (FMEDA)
• Fault Tree Analysis (FTA)
• Ensure compliance with ISO 26262 Functional Safety requirements throughout the hardware development lifecycle.
• Utilize engineering and analysis tools such as Mathcad, Ansys Medini, and other relevant software tools.
• Collaborate closely with hardware, systems, and cross-functional teams through continuous and effective communication.
• Support design reviews, documentation, and validation activities as required.

Required Qualifications & Skills

• Bachelor’s or Master’s degree in Electrical, Electronics, or related Engineering discipline.
• 5–10 years of experience in hardware design for automotive applications.
• Strong hands-on experience in analog and digital circuit design.
• In-depth knowledge of automotive hardware development processes and standards.
• Proven experience working with ISO 26262 Functional Safety standards.
• Hands-on experience performing WCCA, DFMEA, FMEDA, and FTA.
• Proficiency with engineering tools such as Mathcad, Ansys Medini, or equivalent.
• Strong communication skills and ability to work effectively in a team-oriented environment.

Job Title : Nuclear Engineer (Naval Reactors Engineer) Category / Component : Officer • Active Overview Design, regulate, and oversee the Navy's nuclear propulsion program, including reactor design, fleet operations, and eventual defueling and decommissioning of nuclear powered ships and submarines from Naval Reactors Headquarters and associated Department of Energy laboratories and shipyards.

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves, instrumentation and control for reactor and propulsion plants, testing and quality control, radiation shielding, and chemistry and radiological controls; review designs and analyses from laboratories, shipyards, and industry partners; coordinate with fleet units to ensure safe and reliable nuclear plant operation.

What to Expect Assume significant technical responsibility early in your career as part of a lean headquarters staff; work primarily in an analytical and oversight role rather than operating plants at sea; balance long term engineering projects with time sensitive fleet and shipyard issues; frequent coordination with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication.

Work Environment Work mainly at Naval Reactors Headquarters in the Washington, District of Columbia area with regular engagement with Department of Energy laboratories, nuclear training sites, shipyards, and nuclear powered ships and submarines; office based work that includes document reviews, technical meetings, inspections, and site visits rather than day to day shipboard watchstanding.

Pathways, Training & Advancement Officer commissioning through programs such as Officer Candidate School or the Nuclear Propulsion Officer Candidate program followed by a structured technical qualification program at Naval Reactors; rotational exposure to laboratories, prototypes, shipyards, and fleet support issues; progressive responsibility leading projects and becoming a subject matter expert, with opportunities for professional military education and advanced graduate study in technical fields.

Entry through the Nuclear Propulsion Officer Candidate program for qualified college students and recent graduates, or selection via Officer Candidate School for those who already hold qualifying degrees; all applicants must meet Nuclear Propulsion Program academic and technical screening standards in addition to general officer commissioning requirements.

Qualifications All Navy jobs require meeting general enlistment or commissioning standards, which typically include: Eligibility to serve in the United States Navy, which may involve United States citizenship or other legal residency and work status, depending on the program and current law and policy A high school diploma or equivalent for enlisted positions, and a bachelor's or qualifying professional degree for officer positions Meeting age limits that vary by program and are set in law and Navy policy.

Some communities have more restrictive age ranges Meeting medical, vision, and dental standards, including body composition and physical fitness requirements, with some jobs requiring more demanding standards Meeting character and conduct standards, including background screening Achieving required test scores for your program, such as the Armed Services Vocational Aptitude Battery for enlisted roles or officer qualification tests for officer programs Eligibility for a security clearance when required for your rating or designator Additional qualifications can include specific skills, education, licensure, or experience that are unique to a job or community and will be reviewed with you by a recruiter.

Additional qualifications for this job may include: Completion of a rigorous technical degree in engineering, physics, mathematics, or a closely related field that includes strong backgrounds in calculus and physics; outstanding academic record, particularly in technical coursework; United States citizenship and eligibility for a high level security clearance; strong technical aptitude and comfort with detailed analytical work.

Education Education benefits are available through standard Navy programs such as Tuition Assistance, the Post-9/11 GI Bill, ACE-recommended college credit for Navy training, Navy COOL-funded certifications, USMAP apprenticeships, and other Navy College Program opportunities.

Specific options depend on the Sailor's status, training, and current Navy policy.

Pay, Benefits & Service Pay, benefits, and service commitments follow standard Navy Active and/or Reserve policies for this type of role, including basic pay, allowances when eligible, health coverage, and retirement options.

Exact entitlements, special pays, and service obligations depend on program, component, years of service, and current law and Navy guidance.

Incentives Incentives such as bonuses, special pays, and loan repayment may be available at times for specific ratings or communities, but they change frequently and cannot be guaranteed.

Applicants must confirm current incentives and eligibility with an official Navy recruiter or authoritative Navy source.

Notes and Disclaimers This description is a general overview of typical duties, training, and opportunities in this community.

It does not replace official Navy instructions, policies, or contracts and does not guarantee specific assignments, training, incentives, or outcomes.

Actual opportunities depend on Navy needs, individual performance, screening results, and current law and policy.

About DepthFirst AI

We believe that software is the foundation of modern civilization - yet vulnerabilities threaten its integrity, security, and resilience. We are on a mission to solve security.

DepthFirst is building intelligence to detect and remediate critical software vulnerabilities. We are training and scaling security AI agents to discover zero-days vulnerabilities, from large customer codebases to popular open source software.

Our founding team includes expertise in security and LLMs (with technical leaders from DeepMind, Databricks, Square, and Faire). We are looking for strong technically-minded people who are interested in working at the intersection of AI, Security and Infrastructure.

About this role:

We’re seeking an experienced Account Executive to lead the charge in building DepthFirst’s sales and account management team. This newly created role puts you at the helm of DepthFirst’s most strategic enterprise accounts—owning customer success, account expansion, and meaningful business outcomes.

You’ll partner directly with senior leaders in Security and Engineering and influence how leading global enterprises build their security systems in the age of AI, with your impact measured by strong Net Revenue Retention through renewals, retention, and targeted growth.

You’re excited about this role because you will…

• Manage and grow a portfolio of DepthFirst’s most strategic enterprise accounts across the globe.
• Develop and execute account strategies that drive long-term customer loyalty and unlock new business value.
• Build strong, multi-level relationships with C-suite executives and senior stakeholders.
• Collaborate cross-functionally with Customer Success, Solutions Engineering, and Channel teams to identify and realize expansion opportunities.
• Help customers integrate security seamlessly into fast-moving, AI-driven development workflows.
• Provide strategic customer insights to Product Management to influence product direction and priorities.
• Drive measurable results through targeted, outcome-focused account growth plans.

Qualifications

• 5+ years of enterprise account management experience in technical SaaS - owning large, complex accounts.
• Proven success in driving outstanding Net Revenue Retention through renewals, retention, and strategic account growth.
• Skilled at engaging and influencing C-level executives within complex, matrixed organizations.
• Deep expertise in Cybersecurity, DevOps, DevSecOps, or enterprise software account leadership.
• Comfortable operating in high-growth, fast-paced environments, with a track record of building new strategies, functions, or approaches from the ground up.
• Strong collaborator with the ability to align cross-functional teams around customer outcomes.

What We Offer

• Competitive Salary with generous equity
• Health and Dental Insurance
• Office lunch (when working out of San Francisco office)

Senior Account Executive (San Francisco Bay-Area)

About the Role:

An innovative Data & AI technology business (Series B $50M+) is looking to hire a Senior Account Executive to drive enterprise growth across the West Coast. This role will focus on selling a category-defining data security, privacy and AI governance platform to senior security stakeholders, requiring a consultative, methodology-led approach to high growth markets.

The Company:

This fast-scaling technology company is redefining how organisations approach data defence, unifying security, privacy and AI governance into a single, forward-thinking platform. With strong product-market fit and ambitious growth plans, the business is building a commercial team to support enterprise expansion across key US markets.

Benefits & Opportunities:

• Join at a pivotal growth stage as a significant commercial hire, shaping the go-to-market strategy and long-term revenue engine.
• Sell a genuinely differentiated platform that is redefining the data security and privacy landscape.
• Work closely with leadership in a business that values grit, intelligence, curiosity and disciplined sales execution.

To Be Successful, You’ll Need:

• At least 5 years of field sales experience with a consistent track record of enterprise performance.
• Demonstrated experience selling into security, infrastructure, or observability environments within mid-size growth and enterprise companies.
• A consistent record of over achievement of quota in sales environments
• Formal sales methodology training (e.g. MEDDPIC, Command of the Message) and a highly consultative, process-driven approach.

Key Words:

Account Executive | Enterprise Sales | Data Security | Privacy Technology | AI Governance | MEDDPIC | Command of the Message | Observability | Infrastructure | CISO | Enterprise Software | Field Sales