CMM SeniorLeadPrincipal Process Engineer (ProcE)

Primary Duties & Responsibilities

We are looking for a Process Engineer to be embedded within our contract manufacturing (CM) ecosystem to oversee the assembly and test of high-speed optical transceivers (QSFP-DD OSFP). This role is critical to ensuring that our external partners execute to our specifications regarding precision optical coupling thermosonic bonding and RF testing. You will own the transfer of new products from NPI toVolume production ensuring that processes are robust scalable and meet rigorous quality standards.

• CM Management: Serve as the on-site technical authority at assigned CM facilities; conduct process audits and drive corrective actions.
• Assembly Process: Manage critical assembly steps including lens attach fiber attach reflow soldering and active optical alignment. Experience in die and wire bonding and active alignment.
• Test Optimization: Oversee transceiver test workflows (TX/RX power BER eye diagram mask margin) to ensure test equipment correlation across sites.
• Data Analysis: Utilize statistical tools (JMP/Minitab) to analyze yield data identify root causes of failures and implement permanent countermeasures.

Education & Experience

• Bachelors degree in either field of Industrial Mechanical Electrical Engineering Physics or a related field. A masters degree is preferred.
• A minimum of 3 years of experience in process engineeringor manufacturing engineering roles preferably in the electronics semiconductor optics or hightech manufacturing environments.
• A thorough understanding of the product and its manufacturing process. Handson experience with Front-of-Line (FOL) and End-of-Line (EOL) manufacturing processes as well as assembly lines related to electronics semiconductors transceivers and passive/active optical cables is essential. Actual experience with die bonding wire bonding wafer processing optical alignment and module/package assembly is advantageous.
• Good communication skills in both English and Thai are required with proficiency in Chinese being a bonus.
• Experience with high-speed RF testing (up to 800G) and optical test equipment.
• Willingness to travel or be stationed at contract manufacturing sites

Skills

• Data Analytics: Proficient in Minitab JMP and other similar tools for statistical analysis.
• Risk Management: Experienced in Failure Mode and Effects Analysis (FMEA) and Root Cause Analysis techniques including the 5 Whys and Fishbone diagram.
• Project Management: Capable of managing qualification timelines and deliverables effectively.
• Communication & Influence: Strong communicator with excellent negotiation skills able to maintain high standards at partner facilities.

Working Conditions

• Serve as Resident Engineer in Fabrinet. Cucbicle should be located in CM site in Chonburi.
• Typical working conditions are found in a climate-controlled professional office environment. This role routinely utilizes standard office equipment including computers phones copiers and filing cabinets.

CultureCommitment

Ensure adherence to companys 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.