VCSEL and Laser Development Engineer

Join to apply for the VCSEL and Laser Development Engineer role at II-VI Aerospace & Defense
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Our team is developing VCSEL devices for advanced sensing technologies and AI applications.

• Create and develop VCSEL devices that can be used in advanced sensing technologies and AI applications.
• Ensure that the simulation models accurately represent the device’s behavior and convert these models into practical, working designs.
• Plan, execute, and oversee experiments to test and confirm the effectiveness and performance of the VCSEL designs.
• Work closely with customers to understand their needs and performance criteria and deliver designs that not only meet but surpass their expectations.
• Create and apply methods and systems to precisely measure and evaluate the performance of the VCSEL devices.

• Minimum 7-10 yrs. experience working in optoelectronics device design – epitaxy, fabrication and testing.
• PhD/MS/BS or equivalent degree. Preferred with optoelectronics and semiconductor background.

• Semiconductor design, epitaxy growth, fabrication and design background.
• Device and material modelling.
• Tester setup for laser device characterization.
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Statistical analysis – JMP, Matlab.
• Strong interpersonal, teaming, and problem‑solving skills.
• Work effectively with other members of the organization.

• Normal working conditions for an open concept office environment and climate‑controlled manufacturing cleanroom and R&D lab.
• Customer facing role.
• Must have flexibility to support a 24/7 operation.

• Regularly required to talk or hear; frequently required to stand, walk, use hands to finger, handle or feel; and reach with hands and arms.
• Work in a Class 100/1000 clean room and lab environment as needed; wear appropriate PPE and comply with site safety protocols; work with and/or around gases/chemicals, both hazardous and non‑hazardous.

All employees are required to follow the site EHS procedures and corporate EHS standards.

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.

Ensure adherence to company’s values (ICARE) in all aspects of your position at the organization:

• I – Integrity:
  Create an Environment of Trust
• C –
  
  Collaboration:
  
  Innovate Through the Sharing of Ideas
• A – Accountability:
  Own the Process and the Outcome
• R – Respect:
  Recognize the Value in Everyone
• E – 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 t

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. We provide 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.

II-VI Aerospace & Defense is a high technology company, offering careers in offices and campuses in California, Colorado, Florida, Pennsylvania, and Ohio. We work with emerging technology in areas of atmospheric sensing and imaging, adaptive optics, optical communications, coherent beam combining, and numerical performance analysis of atmospheric optics systems. II-VI A&D has recently been awarded several new government contracts and we are offering opportunities to leverage your technical experience and interpersonal skills for something more than a simple paycheck.

Mid‑Senior level

Full‑time

Engineering and Information Technology

Defense & Space