R&D Engineer – VCSEL Development

Coherent Corp.

R&D Engineer designing VCSEL laser devices at Coherent Corp. for technologies in industrial, military, life sciences, and consumer markets.

Posted 5/15/2026full-timeSherman • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

About the role

Key responsibilities & impact

Create and develop VCSEL devices that can be used in advanced sensing technologies and 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.

Requirements

What you’ll need

Minimum 5 yr. experience in opto-electronic device development and characterization - epitaxy, fabrication and testing
PhD degree or equivalent degree in Semiconductors, Laser Physics or Engineering field
Preferred Laser design and device modelling, Epi, Wafer Fabrication and lab-based testing background.

Benefits

Comp & perks

Working conditions are normal 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.

ATS Keywords

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Hard Skills & Tools

VCSEL devicesopto-electronic device developmentdevice characterizationepitaxyfabricationtestinglaser designdevice modelingwafer fabricationlab-based testing

Soft Skills

customer collaborationperformance evaluationproblem-solvingproject management

Certifications

PhD in SemiconductorsPhD in Laser PhysicsPhD in Engineering