Senior CFA Design Engineer
SWIR Vision Systems
Design
San Jose, CA, USA
Posted on May 5, 2026
onsemi is seeking a Senior Engineer to join the Color Filter Array (CFA) Research and Development (R&D) team supporting CMOS image sensor technology. This role is intended for a self-driven, detail-oriented technical leader with deep semiconductor manufacturing experience who can drive process and design solutions from concept through characterization and transfer to manufacturing. The position requires hands-on expertise in reticle design and layout, CFA and microlens processing, FEOL CMOS imager device layout/design, and a strong understanding of FEOL semiconductor process flows. Coding experience is required to enable efficient data analysis and automation.
onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.
More details about our company benefits can be found here:
We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.
onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws.
If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact Talent.acquisition@onsemi.com for assistance.
- BS (MS preferred) in Electrical Engineering, Materials Science, Physics, Chemistry, or a related engineering/science discipline.
- Minimum 10+ years of experience in the semiconductor industry, with direct experience supporting technology development and/or high-volume manufacturing.
- Required: Reticle design and layout experience (mask set definition, layout review, DRC/LVS/layout checks as applicable, and tape-out readiness).
- Required: Color filter (CFA) and microlens process development/integration experience for CMOS image sensors.
- Required: Experience laying out and designing FEOL CMOS imager device structures and understanding how layout intent impacts FEOL integration and performance.
- Strong understanding of FEOL semiconductor process flow (lithography, implant, oxidation/diffusion, deposition, etch, CMP, thermal processing) and integration tradeoffs.
- Required coding experience (e.g., Python, MATLAB, or similar) for data analysis, visualization, and workflow automation; familiarity with version control (e.g., Git) preferred.
- Preferred:
- Familiarity with broader semiconductor fab processes and toolsets beyond FEOL (e.g., metrology, defect inspection, and optical characterization)
- Experience in definition, implementation, and analysis of Design of Experiments (DOE) and statistical process control (SPC)
- Demonstrated technical leadership, including mentoring, project leadership, and cross-site/cross-functional collaboration
- Experience driving technology milestones through productization and manufacturing release (documentation, qualifications, and change control)
- Strong problem-solving skills with hands-on experience using 8D (or equivalent) to drive root-cause and corrective actions
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Excellent written and oral communication skills; able to communicate complex technical topics to diverse audiences
Experience with image sensor optical stack modeling and/or characterization (e.g., CFA/microlens-related optical metrics and metrology)
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