Job Description
Primary Duties & Responsibilities
- Product Qualifications – Design, System, and Implementation – 60%
- Serve as the primary technical interface for Contract Manufacturing during the design transfer and New Product Introduction (NPI) phase
- Process Development: Work with CM process engineering teams to develop, qualify, and release assembly and test processes, including die attach, wire bonding, optical alignment, and high-speed testing.
- Build Management: Lead engineering prototype, pilot, and production ramp builds; coordinate material logistics, fixture readiness, and test software validation at CM sites
- Create and maintain all essential product documentation, including Bill of Materials (BOMs), process workflows, work instructions, and control plans
- Analyze and resolve complex product-related issues during prototyping, pilot runs, and ramp-up phases
- Facilitate the smooth transition of products from NPI to volume production, ensuring all processes are stable, capable, and documented
- Technical Scope & Documentation - 40%
- Lead the product cycle as per the PIP process. Write ADRs and PIPs for the project if it is initiated directly in CM.
- DFM & Design Collaboration: Partner with R&D and design engineering early in the development cycle to influence design for manufacturability, testability, and assembly (DFM/DFT/DFA) for optical transceiver products
- Yield & Quality: Establish baseline yield targets, drive root cause analysis for failures during NPI phases, and ensure corrective actions are implemented prior to handoff.
- Review of the product TRDs, Software (including Firmware, Coherent proprietary control.
- Provide subject matter expertise related on hardware design, including evaluation and simulation of optical/ RF components
- Design Verification Testing and Troubleshooting.
- Documentation & Transfer: Create and manage NPI documentation including control plans, FMEAs, process flow diagrams, and qualification reports. Lead the formal technology transfer to sustaining manufacturing engineering teams.
Education & Experience
- Master's or higher degree in optical engineering, optical electronic information, physics, electrical or electronics engineering preferred.
- Minimum 4 years of NPI or manufacturing engineering experience in optoelectronics, semiconductor packaging, or high-precision electronics assembly
- Good knowledge and experience of optical modeling and simulation for communication systems. Or familiar with C, PCB design, CAD software, FPGA, MATLAB, and QUANTUM programming language software and systems. Or experience with Linux, Logic Analyzer, Baseband, Python, and Verilog software and systems.
- Deep expertise in GD&T, statistical analysis, DOE, and validation methodologies
- A profound understanding of active components, including high-speed lasers and photodiodes, is preferred.
- Good communication skills in both English and Thai and Chinese (bonus).
Skills
- Data analysis by JMP or Mini-tab.
- Deep understanding of optical transceiver assembly processes (die attach, wire bonding, lens/fiber attach, active alignment) and test methodologies (BER, eye diagram, optical power).
- Familiar with Transceiver, OSA product structure.
- Prefer Similar Product Engineer working experiences in the past.
- Adaptability, Innovation, Planning and Organizing, Problem Solving, Decision Making and Continuous Improvement, Professional and Technical Knowledge and Skills, Reliable and Dependable, Results Oriented, Teamwork.
- Proficiency in DFM/DFT methodologies, process qualification (IQ/OQ/PQ), and statistical analysis (JMP/Minitab)
Working Conditions
Working conditions typical of a climate controlled and professional office environment. This role routinely uses standard office equipment such as computers, phones, copiers, filing cabinets, etc.
Serve as Resident Engineer in Fabrinet. Cubicle located in Chonburi site , Fabrinet
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.
II-VI Thailand (Subsidiary of Coherent Corp) is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to gender identity, sexual orientation, race, color, religion, national origin, disability, or any other characteristic protected by law.
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.
