Lumina

Develops PICs and electro-optic modulators

Photonic Fabrication and Test Engineer

Process EngineeringConfirmed live in the last 24 hours

Full-timeCambridge, MA, USAIn-person

About the Job

Requirements

A PhD in Physics, Engineering, or equivalent is required.
At least 2 years of hands-on semiconductor or photonics fabrication process experience in industry, a lab, or a foundry is required.
Expertise in electron-beam lithography, inductively coupled plasma reactive-ion etching, plasma-enhanced chemical vapor deposition, thermal evaporation, scanning electron microscopy, and other typical metrology tools is required.
Experience working with measurement stages, optical and electrical probe alignment, and data management is required.
Strong fundamentals in process engineering, including process control, recipe development, and documentation discipline, are required.
Demonstrated ability to troubleshoot complex process issues end-to-end is required.
Comfort working in a fast-moving, flexible environment with high ownership is required.

Responsibilities

Develop, own, and improve end-to-end photonics process flows, including process integration, recipe development, and yield improvement.
Run and refine core cleanroom steps as applicable, including photolithography or electron-beam lithography, etching, deposition, lift-off, cleaning, and annealing.
Establish robust process windows, controls, and documentation.
Drive metrology and feedback loops using profilometry, ellipsometry, scanning electron microscopy, atomic force microscopy, optical inspection, and related methods to correlate process with device performance.
Collaborate across fabrication, design, and characterization to improve performance, repeatability, and manufacturability.
Run post-fabrication test and characterization flows to measure design performance.

Photonic Fabrication and Test Engineer

Lumina Corp · Cambridge, United States · Full-time · Posted 2026-08-27

Salary: USD 110,000–140,000

Workplace: on_site

Department: Process Operations

Description

Lumina Corp is building a visible-light photonic integrated circuit (PIC) platform, bringing high-performance modulators and related devices from lab to product. We’re looking for a Photonics Fabrication and Test Engineer who can turn device concepts into repeatable, high-yield fabrication flows and continuously improve them.

This is a hands-on role spanning process development, integration, metrology, and yield, working closely with design and test to close the loop fast.

What you’ll do

Develop, own, and improve end-to-end photonics process flows (process integration, recipe development, yield improvement)
Run and refine core cleanroom steps (as applicable): lithography (photo/e-beam), etch (RIE/ICP), deposition (PECVD/Thermal Evap), lift-off, cleaning, anneals
Establish robust process windows, controls, and documentation
Drive metrology + feedback loops (profilometry/ellipsometry/SEM/AFM/optical inspection, etc.) to correlate process to device performance
Collaborate across fabrication, design, and characterization to improve performance, repeatability, and manufacturability
Run post-fabrication test and characterisation flows to measure design performance.

Requirements

PhD in Physics, Engineering, or equivalent.
2+ years hands-on semiconductor/photonics fabrication process experience (industry, lab, or foundry)
Expert in EBL, ICP-RIE, PECVD, Thermal Evap, SEM (and other typical metrology tools)
Experience working with measurement stages, optical and electrical probe alignment, data management.
Strong fundamentals in process engineering: process control, recipe development, documentation discipline
Demonstrated ability to troubleshoot complex process issues end-to-end
Comfortable working in a fast-moving, flexible environment with high ownership

Benefits

Health-care, Vision, Dental Coverage
Training & Development
Paid Time Off (Vacation, Sick & Public Holidays)
Stock Option Plan

Lumina Corp is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

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Apply at Lumina Corp

About the Company

Lumina

Develops PICs and electro-optic modulators

Lumina designs and makes on-chip optical components, focusing on electro-optic modulators and photonic integrated circuits built on a thin-film lithium tantalate platform. This choice gives broad spectral coverage from deep ultraviolet to infrared while avoiding common stability issues seen with lithium niobate. The company offers standard off-the-shelf modulators, custom design and fabrication, and a Process Design Kit so partners can design their own PICs on Lumina’s platform. Its goal is to help customers move from lab concepts to deployable chip-scale photonic systems in fields like quantum computing, biophotonics, precision sensing, and defense.

Company size: 1-10
Company stage: Not listed
Total funding: Not listed
Headquarters: Not listed
Founded: Not listed

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