Senior Photonics Process Engineer (III-V / SiPh)

Lumilens Inc.; San Jose (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Health insurance

Professional development

Certification support

Job summary

Lumilens Inc. is seeking a senior process engineer to advance photonics fabrication processes for next‑generation AI infrastructure. You will translate product needs into robust process specifications and establish repeatable manufacturing flows across III‑V etching, coating, and related modules.

You will design and execute DOEs to optimize etch profiles, coating performance, and yield, while collaborating with device, packaging, and manufacturing teams to scale from development into production.

Qualifications

• Senior-level experience in semiconductor process engineering, development or integration.
• Hands-on experience with III‑V etching, coating, thin films, deposition, lithography, metrology, or related cleanroom processes.
• Ability to translate product requirements into executable process flows and control plans.
• Strong DOE design, process characterization, and data‑driven optimization skills.

Responsibilities

• Drive process development for III‑V etching, coating, and related semiconductor fabrication modules.
• Translate product and device requirements into clear process requirements and acceptance criteria.
• Define tooling needs, including equipment capability, process windows, fixturing, materials, and vendor requirements.
• Design, execute, and manage DOEs to optimize etch profiles, coating performance, yield, and manufacturability.
• Collaborate with device, photonics, packaging, manufacturing, and external fab partners to troubleshoot process issues and drive corrective actions.

Skills

Senior process engineering experience

DOE design & process characterization

Semiconductor fabrication

Cross-functional collaboration

Tools

SEM metrology

Profilometry

Ellipsometry

Job description

Lumilens Inc. is seeking a senior process engineer to advance photonics fabrication processes for next‑generation AI infrastructure. You will translate product needs into robust process specifications and establish repeatable manufacturing flows across III‑V etching, coating, and related modules.

You will design and execute DOEs to optimize etch profiles, coating performance, and yield, while collaborating with device, packaging, and manufacturing teams to scale from development into production.