Technologist | III V Semiconductor Technology | Process Development (InP & GaAs)

Location: Sherman, TX, United States

Primary Duties & Responsibilities

• Lead definition and development of new and novel III‑V process nodes for InP and GaAs technologies.
• Drive unit process development across epitaxy (MBE/MOCVD), lithography, etch, deposition, CMP, implant, and backend steps.
• Lead process technology transfers during development bringing to volume manufacturing.
• Partner closely with Process Engineering, Equipment Engineering, R&D, Quality, and Operations.
• Lead external collaborations with equipment suppliers, material vendors, and research partners.

Education & Experience

• Master’s or PhD in a relevant discipline.
• Expertise in MOCVD/MBE epitaxy, III‑V device fabrication, or photonics/RF process integration.
• Experience in tool evaluations, technology insertion, and supplier joint development programs.

Skills

• 10+ years of experience in semiconductor process engineering or technology development.
• Deep knowledge of III‑V semiconductor processing—InP, GaAs, or related compound semiconductors.
• Proven record of improving throughput, stability, and yield in complex fab environments.
• Strong command of DOE, SPC, and data analysis tools (JMP, Minitab).
• Experience leading multi‑disciplinary technical programs and vendor engagements.
• Excellent communication skills with the ability to influence at all levels.

Working Conditions

• Cleanroom Environment.
• Some travel needed.
• Contribute to breakthrough III‑V semiconductor technologies.
• Influence long‑term technology roadmaps and manufacturing capability.
• Work with advanced processes, tools, and cross‑functional teams.
• High visibility and significant technical ownership.

Physical Requirements

• Must be able to sit/stand for long periods of time up to 4 hours at a time. 
• Must be able to adorn clean room attire and go into cleanroom if needed
• Must be able to with or without accommodation use office equipment

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.

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 Summary: We’re looking for a Senior Principal Technologist to lead development of next generation process nodes for Indium Phosphide (InP) and Gallium Arsenide (GaAs) semiconductor technologies. This is a high impact technical leadership role working across cross functional engineering teams and external equipment and material vendors to enable advanced device performance and scalable III V wafer manufacturing.