NPI Engineer - Mechanical Systems
$110k - $140kHEN Technologies
At HEN Technologies, we’re building Physical AI for the real world—intelligent systems that sense, understand, and act in high-stakes physical environments. Our first application is transforming fire response: combining advanced fluid dynamics, IoT-enabled hardware, real-world operational data, and AI-powered decision support to help firefighters suppress fires faster, use less water, reduce fatigue, and improve safety. By connecting the physical layer of emergency response with predictive intelligence, HEN is building the infrastructure for a safer, more adaptive future. Role Overview The NPI Engineer will own the transition of new mechanical products from prototype and pilot builds into scalable production. This person will work cross-functionally with engineering, supply chain, manufacturing partners, quality, and operations to ensure products are manufacturable, reliable, cost‑effective, and built to HEN’s quality standards. This role is ideal for someone who enjoys hands‑on mechanical problem solving, supplier collaboration, production readiness, and building the systems needed to launch durable hardware products successfully. The NPI Engineer will work closely with the Head of Supply Chain and will play a key role in supplier qualification, build readiness, quality control, and launch execution. Key Responsibilities NPI & Launch Readiness Lead NPI activities for new mechanical products from prototype through pilot builds and production ramp. Develop and manage build plans, pilot run requirements, validation checklists, and production readiness criteria. Identify design, tooling, process, supplier, and quality risks before production launch. Coordinate engineering changes, manufacturing feedback, and issue resolution during pre‑production and early production phases. Drive cross‑functional launch readiness reviews with engineering, supply chain, quality, and manufacturing partners. Mechanical Engineering & Manufacturability Review mechanical designs for manufacturability, assembly, serviceability, durability, and cost. Partner with design engineering to refine tolerances, materials, finishes, assembly methods, and inspection requirements. Support DFM/DFA reviews for machined, cast, molded, formed, or assembled mechanical components. Translate product requirements into manufacturing and inspection requirements. Troubleshoot mechanical fit, function, assembly, sealing, durability, and reliability issues. Supplier & Manufacturing Partner Management Work closely with the Head of Supply Chain to onboard, qualify, and manage suppliers and contract manufacturing partners. Support supplier selection by assessing technical capability, quality systems, process controls, and production readiness. Review supplier process plans, control plans, inspection reports, and first article submissions. Lead technical discussions with suppliers to resolve manufacturing, quality, and yield issues. Support supplier audits, capability assessments, and corrective action plans as needed. Quality & Process Control Define incoming inspection criteria, critical‑to‑quality dimensions, functional test requirements, and acceptance standards. Support creation of control plans, inspection procedures, test fixtures, work instructions, and quality documentation. Drive root cause analysis and corrective actions for prototype, pilot, and production issues. Monitor early production quality, yield, scrap, rework, and field feedback to identify improvement opportunities. Ensure mechanical products meet performance, reliability, and customer‑use requirements before launch. Documentation & Cross‑Functional Execution Maintain clear NPI documentation, including build records, issue trackers, risk logs, validation results, and launch checklists. Create and maintain BOMs, assembly documentation, inspection plans, and engineering change documentation in partnership with engineering and operations. Communicate launch status, risks, open issues, and mitigation plans to leadership. Help establish scalable NPI processes as HEN expands its product portfolio. Required Qualifications Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, Industrial Engineering, or a related technical field. 3–6 years of experience in NPI, manufacturing engineering, product engineering, supplier quality, or hardware operations. Strong mechanical engineering fundamentals, including tolerances, materials, assemblies, mechanical testing, and manufacturing processes. Experience taking physical products from prototype or pilot builds into production. Hands‑on experience with mechanical parts and assemblies, such as machined components, castings, molded parts, fasteners, seals, fixtures, enclosures, mechanisms, or other durable hardware components. Familiarity with DFM/DFA, GD&T, BOMs, engineering drawings, inspection plans, and production documentation. Experience working with external suppliers, contract manufacturers, or production partners. Strong problem‑solving skills and experience with root cause analysis. Excellent communication skills and ability to work across engineering, supply chain, quality, and operations. Preferred Qualifications Experience with mechanical hardware products, industrial equipment, consumer hardware, appliances, automotive components, tools, medical devices, robotics, or other durable physical products. Experience with mechanical assemblies involving machined parts, castings, molded components, seals, fasteners, springs, gaskets, fixtures, mechanisms, or high‑wear components. Familiarity with fluid, pressure, sealing, thermal, or durability requirements is helpful, but direct industry‑specific experience is not required. Experience with quality tools such as FMEA, control plans, first article inspection, 8D, CAPA, SPC, or process capability studies. Experience developing test fixtures, inspection fixtures, assembly fixtures, or end‑of‑line functional test processes. Familiarity with ISO 9001 or similar quality management systems. Experience working with domestic and international suppliers. CAD experience and ability to interpret and review mechanical drawings. Comfortable working in a startup or fast‑moving hardware environment. What Success Looks Like New products move from prototype to production with clear build plans, quality standards, and supplier readiness. Mechanical and manufacturing risks are identified early and resolved before launch. Suppliers have the documentation, process controls, and inspection criteria needed to build consistently. Pilot builds produce actionable data that improves product quality and manufacturability. Production quality, reliability, and launch execution improve with each NPI launch. Location Livermore, CA Compensation $110,000 – $140,000 base salary, depending on experience, skills, and qualifications. Benefits and equity may be included as part of the total compensation package. How to Apply Please submit your resume and a brief note describing your experience launching mechanical products into production. HEN Technologies is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, disability, protected veteran status, or any other legally protected characteristic. We are committed to building a diverse, inclusive, and authentic workplace where people from different backgrounds can do meaningful work together. If you’re excited about our mission and this role, but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply. You may be the right candidate for this role or another opportunity at HEN. #J-18808-Ljbffr HEN Technologies
- ...kinetic munition delivered by an FPV-class airframe. The system carries an electro mechanical safe and arm device (EMSAD) governed by a seven-state... ...numbers they are. Work directly alongside the HW and SW engineers — PCB outline, connector placement, harnessing,...Suggested
$110k - $140k
HEN Technologies is seeking an NPI Engineer to oversee the transition of mechanical products from prototypes into scalable production. This role requires strong collaboration across engineering and supply chain to ensure manufacturability and quality. The ideal candidate...Suggested- Foundation Robotics Labs Inc. in San Francisco seeks a Mechanical Engineer to design and develop mechanical architectures for humanoid robotic hands. The ideal candidate has a strong foundation in mechanical engineering principles, hands-on experience in robotics, and familiarity...Suggested
- Undisclosed is searching for a Mechanical Engineer in San Francisco, CA. This role demands 2+ years of experience, particularly with actuators and dynamic systems. You will join a world-class team and contribute to developing advanced robotics. Expect to utilize your mechanical...SuggestedFull time
- ...autonomous dexterous robotic arms for microgravity environments. Our systems enable orbital science and manufacturing that isn't possible... ...it without humans in the loop. We're looking for a Founding Mechanical Engineer to own the design and development of our robotic arm from...SuggestedPermanent employment
- Foundation in San Francisco is seeking an extraordinary Robotics Engineer to tackle unsolved problems in robotics. You will design mechanical architectures for humanoid robotic hands, prototype and test designs, and conduct analyses to meet strength and durability goals...
$115k - $150k
Ouster is hiring a Mechanical Engineer in San Francisco to develop mechanical systems for its digital LIDAR products. The candidate should have a Bachelor's degree in Mechanical Engineering and experience in multi-domain mechanical projects. The role involves owning mechanical...- A leading battery technology firm in San Francisco is seeking an experienced mechanical engineer to lead the design and validation of EV battery systems. In this role, you will engage in all aspects of manufacturing, from development to certification, and work with various...
$115k - $180k
...We’re building a small team of exceptional, hands‑on engineers to make this happen: mechanical, electrical, hardware, computer, and process. We’ll own... ...nanometer scale. We make lithography, metrology and motion systems that pattern, inspect and characterize our chips in...Work at officeVisa sponsorshipNight shift$139.5k - $191.3k
MTR Carbon Capture in San Francisco is looking for a highly motivated Senior Mechanical Engineer. This role involves supporting carbon capture projects, equipment design, and field commissioning. The ideal candidate will have 8-12 years of relevant experience and a Bachelor...Remote job$130k - $160k
Senior Mechanical Engineer, Ground Systems Design and validate ground support mechanical and fluid systems for rocket testing and launches Location: San Francisco Bay Area Compensation: $130,000 - 160,000 USD / year Job Tags: Hardware About The Role Astra Ground Systems...Flexible hours- Diamond Foundry in San Francisco is seeking a Mechanical Design Engineer to lead innovative R&D projects, focusing on Plasma-Enhanced CVD reactor systems. With over 10 years of mechanical design expertise, you will mentor teams and collaborate on diverse projects, managing...Full time
$130k - $160k
Astra is seeking a Senior Mechanical Engineer for their Ground Systems team in San Francisco. The successful candidate will design and validate support systems for rocket launches, focusing on mechanical and fluid systems. The role requires at least 5 years of experience...- ...the Team OpenAI’s Hardware organization develops silicon and system‑level solutions designed for the unique demands of advanced... ...specifically for AI. About the Role We are looking for an experienced Mechanical Engineer with 7+ years of experience in design of IT hardware from...Work at officeRelocation package
- A leading technology firm in San Francisco is seeking a Mechanical Engineer to design and develop ultra-high vacuum (UHV) systems. This full-time position requires hands-on experience in high-precision manufacturing, expertise in CAD, and a strong understanding of vacuum...Full time
- Form Energy is seeking a Staff Mechanical Design Engineer in San Francisco to design and optimize the air delivery and management systems for our pioneering energy storage technology. Your role involves deep collaboration with various teams and a focus on safety and efficiency...
$140k - $180k
.... We’re building a small team of exceptional, hands-on engineers to make this happen. Mechanical, electrical, hardware, computer, and process. We’ll own... ...skilled and hands-on Mechatronics Engineers - Precision Systems to join our team. You will be responsible for designing...Work at officeVisa sponsorshipNight shift- AECO in California is seeking a Senior Mechanical Engineer to lead the design of high-performance buildings. This role includes mentoring emerging talent and delivering HVAC solutions across diverse projects. Candidates should possess a Bachelor's degree in Mechanical Engineering...
$140k - $180k
...-edge semiconductor startup in San Francisco seeks a Mechatronics Engineer to design and build fabrication equipment. The ideal candidate will have over 5 years of experience in electromechanical systems, with a strong focus on rapid prototyping and system integration....$200k - $250k
Sr. to Staff Mechanical Engineer - Delivery Drone Parachute Systems San Francisco, CA (you can work from home up to 2x/week) The team builds small, lightweight autonomous delivery drones with safety-first hardware designed to operate around people and everyday urban...Permanent employmentFull timeWork from home$200k - $250k
A leading technology recruiting firm is hiring a Sr. to Staff Mechanical Engineer specializing in delivery drone parachute systems. Located in San Francisco, this role involves designing, testing, and developing reliable parachute recovery systems for UAVs in a fast-paced...- Fuse, located in San Leandro, California, is seeking a Mechanical Engineer to design and build cutting-edge machines for fusion energy. The ideal candidate has a Bachelor's degree in Mechanical Engineering, with at least 2 years of experience in SolidWorks and CAD modeling...
- Poseidon Aerospace, based in San Francisco, is looking for an aerospace engineer to design and develop aircraft structures using CAD software. Candidates should possess a degree in Mechanical or Aerospace Engineering and have strong skills in structural design and FEA tools...
$140k - $180k
...cutting-edge hardware startup in San Francisco seeks a Mechatronics Engineer to design and build semiconductor fabrication equipment. The... ...rapid prototyping and integration of electromechanical systems. Candidates should have over 5 years of relevant experience and...- Requirements Degree in Mechanical Engineering or related field; Bachelor's with 8+ years of industry experience in mechanical design of equipment, liquid or gas handling systems Understanding of first-principles fluids modeling and experience optimizing designs for manufacturing...Contract work
$45 - $49 per hour
...maritime operations company in San Francisco is seeking talented engineers for its Alcatraz operation. The Marine Engineer will lead... ...engine repairs, design and oversee installations, while mentoring mechanics. The ideal candidate has a minimum of 2 years of engineering...Hourly payAll shifts- A leading global shipping company is looking for a competent Electrical Engineer with relevant seagoing experience. This key position involves supervising electrical maintenance and repair activities on advanced container vessels. Candidates must have at least 12 months...
- Astromecha is looking for a Mechanical Integration Engineer in San Francisco, California. In this role, you'll lead development of weight & balance... ...experience, expertise in aircraft design, and skills in systems integration. Perks include comprehensive insurance, a 401...Flexible hours
- A leading international shipping company based in the United States is seeking a competent Electrical Engineer. The position requires relevant seagoing experience and comes with responsibilities for supervising electrical maintenance and ensuring compliance with safety...
- BYD North America is looking for a Mechanical Engineer to manage the mechanical component lifecycle from concept validation to mass production. The successful candidate will engage with clients and coordinate across departments. Qualifications include a Bachelor’s degree...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to NPI Engineer - Mechanical Systems. Be the first to apply!
- ships motorman San Francisco, CA
- motorman San Francisco, CA
- mechanical maintenance engineer San Francisco, CA
- mechanical design engineer San Francisco, CA
- mechanical engineer consultant San Francisco, CA
- visual systems engineer San Francisco, CA
- system engineer contract San Francisco, CA
- application system engineer San Francisco, CA
- system test engineer San Francisco, CA
- senior windows systems engineer San Francisco, CA

