Product Engineer

Coherent Corp.; Sherman (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Coherent Corp. is seeking a Product Engineer to lead cross-functional teams in investigating yield excursions and implementing CAPA actions.

You will own yield bridge activities for NPI and high-volume manufacturing, ensuring scalable processes and robust yield performance. Ideal candidates will have strong data analytics, experience with VCSEL/DFB devices, and a track record of improving manufacturability in a high-volume setting.

Qualifications

• Responsibilities: support daily production, analyze failures on wafer fabrication and testing lines.
• Collaborate with R&D to introduce next-gen optoelectronic chips (VCSEL, DFB laser, photonic chips) for 3D sensing.
• Define design/process spec limits via sensitivity studies and correlational analysis to improve manufacturability.

Responsibilities

• Monitor and improve yield across wafer fabrication, testing, and reliability evaluations.
• Lead cross-functional teams to investigate yield excursions and implement CAPA measures.
• Support ramp-up readiness and ensure manufacturing readiness of chip designs, equipment, and processes.
• Drive yield improvements and cost reduction post ramp with statistical analysis.
• Collaborate with sub-assembly and module teams to address chip-related issues at contract manufacturers.

Skills

Optoelectronic design

Statistical data analysis

Wafer fab operations

Reliability testing & modeling

Cross-functional leadership

Effective communication

Education

Master's or PhD in Electrical Engineering, Physics, or Materials Science

Tools

JMP

Minitab

Job description

Job Description

The Product Engineer will lead cross‑functional teams to investigate yield excursions, identify root causes, and implement timely corrective and preventive actions (CAPA) using industry-standard engineering methodologies. You will own yield bridge activities, supporting both new product introduction (NPI) and the transition to high-volume manufacturing, ensuring robust process scalability and sustained yield performance.

Job Description

The Product Engineer will lead cross‑functional teams to investigate yield excursions, identify root causes, and implement timely corrective and preventive actions (CAPA) using industry‑standard engineering methodologies. You will own yield bridge activities, supporting both new product introduction (NPI) and the transition to high-volume manufacturing, ensuring robust process scalability and sustained yield performance. Success in this role requires strong analytical capabilities, including the ability to perform complex data queries, statistical analyses, and commonality studies to drive effective troubleshooting and continuous yield improvement. The ideal candidate is detail‑oriented, data‑driven, and thrives in a fast‑paced environment focused on advanced photonics technology.

Education & Experience

• Responsibilities
  • Support daily production like solving issues in real-time, as well as leading the analysis of failures on the wafer fabrication and testing production line.
  • Work closely with R&D team to support new product introduction on next generation optoelectronic chips such as VCSEL, DFB laser, detector and photonic integrated chips for 3D sensing application.
  • Perform design/process sensitivity study to define EPI/process spec limits. Coordinate correlation study between Chip, optical sub-assembly and transceiver modules to enhance design for manufacturability.
  • Lead the efforts to drive production ramp‑up readiness. Coordinate with cross-functional team (EPI, process, assembly, test etc) to ensure manufacturing readiness of chip design and specs, new equipment’s, process flow and specs, documentation and test database infrastructure etc.
  • Lead cross-functional team to drive yield improvement and product cost reduction postproduction ramp. Perform statistical data analysis and trouble shoot potential root causes for yield excursions.
  • Work closely with optical sub-assembly and transceiver module team to address issues at contract manufacturer that could be related to chip performance.
  • Support cost modeling and facilitates actions / decisions towards designing and delivering cost‑competitive products.
• Skills and other requirements
  • Hands‑on experience with design, process, and characterization of optoelectronic device such as VCSEL, DFB laser, or photonic integrated chip.
  • Strong statistical data analysis skills (JMP or Minitab etc.).
  • Familiarity with semiconductor wafer fab operations (Manufacturing Execution System, process, and quality control, change management etc.) in a high‑volume manufacturing environment is a plus.
  • Experience with optoelectronic device reliability testing and modeling is a plus.
  • Strong communication skills; adept at hosting effective meetings and facilitating actions and resolving conflicts.
  • Strong ability to drive actions and solutions through cross‑functional teams.
• Masters or PhD in electrical engineering, physics, material science or equivalent knowledge/experience
• 10+ years professional experience

Skills

• Proficiency with statistical process control, design of experiments, and data base query
• Understanding of device physics and the impact of process parameters on performance
• Experience performing development in a manufacturing environment
• Self‑motivated, driven individual with ability to manage multiple projects in a fast pace environment
• Ability to communicate results in a clear, concise, and well‑organized manner

Working Conditions

• Flexibility to support a 24/7 hour manufacturing site
• Normal office environment
• Clean room environment

Physical Requirements

• Ability to lift/push/pull up to 30 lbs.
• Ability to adorn clean room environment.
• Ability to sit/stand for up to 4 hours at a time.

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

• 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 [e-mail].

Responsibilities

• Monitor and improve yield performance across the entire manufacturing flow, including wafer fabrication, electrical and optical testing, and reliability evaluations.
• Lead cross-functional teams to investigate yield excursions, identify root causes, and implement CAPA measures promptly.
• Support daily production by promptly resolving issues and analyzing failures on the wafer fabrication and testing line.
• Collaborate closely with the R&D team to introduce new optoelectronic chips, such as VCSELs, DFB lasers, and photonic integrated chips, for 3D sensing applications.
• Conduct design and process sensitivity studies to define EPI/process spec limits and enhance manufacturability.
• Lead production ramp‑up readiness efforts, ensuring alignment with cross-functional teams on chip design, equipment, process flow, and documentation.
• Drive yield improvement and cost reduction post‑production ramp, employing statistical analysis to troubleshoot yield deviations.
• Work collaboratively with optical sub‑assembly and transceiver module teams to address chip‑related performance issues at contract manufacturers.
• Support cost modeling initiatives and facilitate actions/decisions to design and deliver cost‑competitive products.
• Own yield bridge activities, providing critical support during new product introduction and the transition to high‑volume manufacturing.

Qualifications

• Post‑graduate degree in Engineering, Physics, Materials Science, or a related field.
• A minimum of 4 years of experience in a similar role, preferably within the semiconductor or optoelectronics industry.
• Hands‑on expertise in designing, processing, and characterizing optoelectronic devices, including VCSELs, DFB lasers, and photonic integrated chips.
• Proficiency in statistical data analysis using JMP, Minitab, or similar tools.
• Familiarity with semiconductor wafer fab operations in a high-volume manufacturing setting is highly advantageous.
• Experience in optoelectronic device reliability testing and modeling is a plus.
• Excellent communication skills, with a proven track record of leading effective meetings and facilitating cross‑functional collaboration.
• A strong ability to drive actions and solutions through cross-functional teams, demonstrating leadership and initiative.
• Willingness and ability to work in a cleanroom environment, adhering to safety protocols and quality standards.
• Independent work ethic, with the capacity to manage multiple projects simultaneously and adapt to a fast‑paced environment.

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!