To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Sr NPI Mechanical Engineer located in Milpitas, CA.
Reporting to the Director, Program Management, the Sr NPI Mechanical Engineer will will work closely with vendors, suppliers, and external manufacturing partners to ensure mechanical components, assemblies, and full systems meet design intent and quality expectations during all NPI phases.
This role is highly engineering-focused, requiring deep mechanical insight, strong build support, rigorous validation, and the ability to solve complex integration issues on the spot
What a typical day looks like:
- Lead hands-on mechanical engineering execution across multiple concurrent hardware NPI programs, ensuring on-time delivery through prototype, EVT, DVT, and PVT builds.
- Own mechanical build readiness by driving detailed analyses (tolerance stack-ups, GD&T, DFM/DFA reviews) to ensure manufacturable, assembly-ready designs.
- Plan and execute mechanical validation (fit/form/function, reliability testing, failure analysis) and translate results into design/build improvements.
- Provide direct build-floor support during prototype and pilot events, performing hands-on assembly, fixture setup, fit checks, torque/alignment, and verification activities.
- Rapidly debug and resolve mechanical/electrical/system integration issues, driving containment, root-cause analysis, and corrective actions for build-time failures.
- Partner with vendors/CMs/suppliers on mechanical readiness, DFM feedback, tooling/pilot support, and quality acceptance; maintain robust engineering documentation (ECOs, drawings, validation reports, work instructions, FMEAs) and communicate clearly cross-functionally.
The experience we’re looking to add to our team:
- Bachelor’s degree in Mechanical Engineering or related technical discipline.
- 6+ years of mechanical engineering experience, with significant hands-on hardware development.
- Demonstrated experience supporting or leading multiple NPI hardware programs.
- Strong understanding of mechanical design, GD&T, tolerance analysis, and fabrication processes.
- Proven hands-on engineering skills in assembly, validation, debugging, and failure analysis.
- Experience working directly with vendors and contract manufacturers.
- Strong communication and technical leadership abilities.
- Proficiency with Microsoft PowerPoint, Smartsheet, and Microsoft Project is required to support effective project planning, tracking, and communication.
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What you'll receive for the great work you provide:
- Full range of medical, dental, and vision plans
- Life Insurance
- Short-term and Long-term Disability
- Matching 401(k) Contributions
- Vacation and Paid Sick Time
- Tuition Reimbursement
Is Sponsorship Available?
NoFlex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [email protected] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).Skills Required
- Bachelor's degree in Mechanical Engineering or related technical discipline
- 6+ years of mechanical engineering experience, with significant hands-on hardware development
- Demonstrated experience supporting or leading multiple NPI hardware programs
- Strong understanding of mechanical design, GD&T, tolerance analysis, and fabrication processes
- Proven hands-on engineering skills in assembly, validation, debugging, and failure analysis
- Experience working directly with vendors and contract manufacturers
- Strong communication and technical leadership abilities
- Proficiency with Microsoft PowerPoint, Smartsheet, and Microsoft Project
Flex Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Flex and has not been reviewed or approved by Flex.
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Healthcare Strength — Health, dental, and vision coverage begin on day one with options for dependents, alongside disability, life, mental‑health resources, and fertility/adoption and gender transition support. Plan choice and wellness programs indicate a robust healthcare offering.
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Leave & Time Off Breadth — Paid holidays, paid sick time, company‑wide shutdown days, and in some cases unlimited PTO point to extensive time‑off provisions. Flexible and hybrid work arrangements in certain teams further support work‑life balance.
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Strong & Reliable Incentives — Quarterly bonus checks and performance bonuses supplement base pay, and some roles can earn overtime at 1.5x. These elements strengthen the reliability of cash incentives.
Flex Insights
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