Sr. Principal Module Design Engineer

Job Description

Primary Duties & Responsibilities

• Design and develop fiber optic transceivers, CPO and NPO Optical Engines. Drive optical engine product design activities from initial concept to production.
• Develop Silicon Photonic (PIC), electronics IC (including TIA, driver, and micro-controller), substrate, optical connector, and packaging co-design to achieve required mechanical and thermal performance.
• Execute analysis, modeling, simulation, and measurement of optical and electrical performance.
• Work closely with firmware, optical, mechanical, and process engineering to develop products per customer requirements.
• Must have in-depth understanding/intuition of electrical engineering solution to RF, power, noise, control, thermal and EMI.
• Create drawings, BOMS and ECO to document design. Interact with program manager, buyer/planner, suppliers to ensure designed parts are available in a timely manner for engineering and pilot builds.
• Resolve all DFMs from process/production engineering and component suppliers.
• Perform module design review for Architectural, EVT, DVT phase review.

Education & Experience

• Bachelor's degree with 7 years of related experience in optical transceiver electrical design.
• Or Master's degree with 5 years; or a PhD with 3 years experience.

Skills & Other Requirements

• Strong analog circuit design skills required
• Strong understanding of circuit theory, linear system theory, feedback, ICs, and high-speed signal fundamentals required
• Strong laboratory measurement skills required
• Experience with board level design cycle
• Experience with electronics CAD tools and electronic system modelling
• Expertise in RF design using modeling tools such as CST or HFSS a plus
• Understanding of microprocessors and real time control firmware a plus
• Familiarity with fiber optic transceivers and CPO/NPO modules a plus.

Working Conditions

• This position is on-site full time.
• May require occasional off-site meetings or travel
• Regular use of a computer and other office equipment is necessary
• Interaction with team members and external contacts is a regular part of the job
• May require occasional overtime and flexibility in work hours to accommodate the executive's needs

Physical Requirements

• Sitting for extended periods while working on a computer or conducting meetings.
• Use of hands and fingers for typing, writing, and handling documents.
• Occasional lifting of objects or materials up to 20 pounds for administrative tasks.
• Ability to communicate verbally and in writing.
• Mobility within the office environment to attend meetings or interact with colleagues.

Safety Requirements

All employees are required to attend scheduled training, follow the site EHS procedures and Corporate EHS standards. This includes the use of proper protective equipment (PPE) as required by the job responsibilities.

Managers will ensure that all safety and environmental procedures are followed consistently. They will ensure that risk assessments are performed, proper training, work instructions, required PPE is available, and will monitor compliance.

Quality and Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company's values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity – Create an Environment of Trust

Collaboration – Innovate Through the Sharing of Ideas

Accountability – Own the Process and the Outcome

Respect – Recognize the Value in Everyone

Enthusiasm – Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you need assistance or an accommodation due to a disability, you may contact us at View email address on click.appcast.io.

About Us

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us! Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.

Job Info

• Job Identification 2013457
• Posting Date 07/09/2026, 09:51 PM
• Degree Level Bachelor's Degree
• Job Schedule Full time
• Locations 48800 Milmont Drive, Fremont, CA, 94538, US (On-site)
• Pay Scale $ 127,875 - $ 223,813 per year