Senior Assembly Development Engineer

COHERENT; Fremont (CA); On-site; USD 92,000 - 150,000; Full time

Job summary

Coherent Corp. in Fremont, CA seeks a Senior Process Development Engineer to lead development engineering for high-power CW lasers, chip-on-carrier assemblies, and packaging.

You will collaborate with contract manufacturers, optimize yield, and analyze reliability data to drive quality improvements and on-time delivery. A Master’s degree and 5+ years of industrial experience in engineering development are required. Occasional travel to manufacturing sites is expected.

Qualifications

• A Master’s degree or higher in Applied Physics, Materials Science, Electrical Engineering or related field.
• At minimum 5 years’ of industrial experience in engineering development, preferably with a focus on semiconductor lasers or related optoelectronic devices such as photodiodes, semiconductor lasers and other devices with InP based materials.

Responsibilities

• Oversee the engineering development effort on chip-on-carrier assembly and/or package/module development for high-power CW lasers, high speed PD, and/or co-packaged optics, ensuring optimal performance and yield.
• Work closely with manufacturing teams and Fremont product engineering and logistic team to address needs and optimize performance with contract manufacturers
• Collaborate with Fremont Product Engineers, Design, Planning, Logistic team to ensure good quality product on time delivery on schedule
• Utilize statistical methods to analyze reliability and test data, identifying trends and potential issues to improve product yield and quality; perform thermal or thermomechanical modeling and analysis during the chip bonding process.

Skills

Data analysis

Leadership

Problem solving

Communication

Travel

Teamwork

Education

Bachelor's Degree

Master's degree or higher

Job description

As the Senior Process Development Engineer, you will lead all aspects of development engineering, work with contract manufacturers, for our high-power CW lasers and their packages. This position demands a hands‑on approach to product performance, yield optimization, and production troubleshooting. Your expertise will guide the seamless integration of new products into existing systems and ensure our continued leadership in the market.

Primary Duties & Responsibilities

• Development Engineering Leadership: Oversee the entire engineering development effort on chip-on-carrier assembly and/or package/module development for high-power CW lasers, high speed PD, and/or co-packaged optics, ensuring optimal performance and yield.
• Manufacturing Collaboration: Work closely with manufacturing teams and Fremont product engineering and logistic team to address needs and optimize performance with contract manufacturers
• Cross-Functional Teamwork: Collaborate with Fremont Product Engineers, Design, Planning, Logistic team to ensure good quality product on time delivery on schedule
• Data Analysis: Utilize statistical methods to analyze reliability and test data, identifying trends and potential issues to improve product yield and quality; Perform thermal or thermomechanical modeling and analysis during the chip bonding process.

Education & Experience

• A Master’s degree or higher in Applied Physics, Materials Science, Electrical Engineering or related field.

• At minimum 5 years’ of industrial experience in engineering development, preferably with a focus on semiconductor lasers or related optoelectronic devices such as photodiodes, semiconductor lasers and other devices with InP based materials. Direct hands‑on experience in semiconductor chip packaging is highly desired.

Skills

• Proficient in data analysis and statistical evaluation related to product engineering.

• Exceptional leadership and interpersonal skills, capable of managing complex projects and diverse teams.

• Strong problem‑solving skills with a proactive approach to addressing and preempting issues.

• Willingness to travel frequently to manufacturing sites.

• Excellent communication skills, essential for effective teamwork and cross‑disciplinary collaboration.

Working Conditions

• This role will be based on‑site in Fremont, CA.

• Regular use of a computer and other office equipment is necessary.

Physical Requirements

• Sitting for extended periods while working on a computer or in 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.

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

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

• I ntegrity – Create an Environment of Trust
• C ollaboration – Innovate Through the Sharing of Ideas
• A ccountability – Own the Process and the Outcome
• R espct – Recognize the Value in Everyone
• E nthusiasm – 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 [e-mail].

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.

Degree Level: Bachelor's Degree

Job Schedule: Full time

Pay Scale: $91,625 - $150,000 per year