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Cambridge, United States

Photonic Fabrication and Test Engineer

Lumina Corp · Cambridge · United States

QA / Test Engineer

Posted: 8/27/2026 · Last checked: 10/11/2026

Job description

Quoted in full from Lumina Corp's job posting. Gavroche does not edit it.

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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Middle half: 120,000 – 170,000 USD a year; median 140,000 USD.

From 331 adverts by 91 employers that state a salary, annualised.

How qa / test engineer roles in the United States are worked

0% fully remote · 13% hybrid · 87% do not say

Of 63 adverts. An advert that does not state a work mode is counted as not saying, not as on-site.

New openings in Cambridge, by week

  1. 7/20/2026 8
  2. 7/27/2026 9
  3. 8/3/2026 3
  4. 8/10/2026 9
  5. 8/17/2026 9
  6. 8/24/2026 18
  7. 8/31/2026 8
  8. 9/7/2026 24
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  11. 9/28/2026 30
  12. 10/5/2026 26

181 openings over 12 weeks, by the week they were published.