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Senior Si Photonics Design Engineer - Fremont, California,

Job in Fremont, Alameda County, California, 94536, USA
Listing for: Molex
Full Time position
Listed on 2026-10-15
Job specializations:
  • Engineering
    Electrical Engineering, Systems Engineer, Electronics Engineer
Salary/Wage Range or Industry Benchmark: 175000 - 275000 USD Yearly USD 175000.00 275000.00 YEAR
Job Description & How to Apply Below
Position: Senior Si Photonics Design Engineer - Fremont, California, United States
Location(s):
Fremont, California Company:
Molex Career Field:
Engineering Job Number: 195542

Apply:  Job Molex is seeking a Senior Si Photonics Design Engineer to join our Optical Solutions Business Unit (OSBU). In this role, the successful candidate will be part of a world-class engineering team, contributing to the development of next-generation Photonic Integrated Circuits (PICs). The successful candidate will be responsible for designing, implementing, and validating photonic components and circuits. The Senior Si Photonics Design Engineer will provide design support for existing and advanced photonic technology and collaborate with global, cross-functional teams and supplier partners to develop next-generation photonic solutions

Our Team The PIC Components & Technology Development team is responsible for the research and development of advanced technology platforms and solutions for the next generation of optical connectivity in AI fabrics, data centers, and datacom applications. Reporting to the Manager of Si Photonics (SiPho) Component Design, you will be a key member of the team and will contribute to various aspects of PIC development including design and optimization of passive and active SiPho components, EVT/DVT of optical devices and circuits, and collaboration with the layout, test, reliability, signal integrity, and integration teams.

What You Will Do Design SiPho components and devices using commercial tools like Lumerical, COMSOL, FIMMPROP, etc for advanced applications such as PAM4 and coherent plug gables and co packaged optics

Design design for experiments and contribute to analyzing test data for EVT/DVTCollaborate with other teams and external foundries to find innovative solutions for novel photonic platforms

Collaborate with the global layout team to assist with seamless development of GDS layouts

Closely collaborate with SI/PI and packaging teams to accommodate reliable integration of PICs into final products

Who You Are (Basic Qualifications)
Master’s degree in Electrical Engineering, Physics or related technical fields

At least 2 years of relevant industrial or academic experience in designing silicon photonics /electrical devices and components

Experience with photonic and optoelectronic devices

Experience with CMOS semiconductor and backend processes

Experience with design tools such as Lumerical,COMSOL, Fimmprop, etc.

What Will Put You Ahead

PhD degree, typically in Electrical Engineering, Physics, or any other related technical fields

At least 4+ years of industry experience in PIC design and validation

For this role, we anticipate paying $175,000 - $275,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location.

If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Hiring Philosophy All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.

Who We Are At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Our Benefits Our goal is for each employee, and their families, to live…
Position Requirements
10+ Years work experience
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