What are the responsibilities and job description for the Production Assembler position at LumiHelix Photonics, Inc.?
Precision Assembly Operator — Optical Components (Bilingual Mandarin/English)
LumiHelix Photonics, Inc. · Alhambra, CA · Full-time, on-site · 2 openings Pay: $22.00 – $27.00 per hour
About us
LumiHelix Photonics manufactures precision optical components for advanced sensing applications. We are a venture-backed company standing up a new production operation in Alhambra, and we are hiring the first operators who will run our floor.
This is a ground-floor role. You will help establish how the work gets done, not just follow a process someone else wrote years ago.
The role
You will operate specialized automated equipment to assemble precision optical components. The work is quiet, exacting, and deeply hands-on. Production cycles are long, tolerances are tight, and a single careless movement can scrap a part that took hours to build.
The people who do this well tend to share a few traits: steady hands, real patience, and the kind of attention that notices when something looks slightly off before it becomes a problem.
If you find satisfaction in doing something small extremely well, over and over, read on.
What you'll do
- Set up, operate, and monitor automated precision assembly equipment
- Perform fine handwork under magnification using tweezers, fixtures, and specialized tools
- Inspect parts at each stage against defined quality criteria and identify defects
- Follow detailed written work instructions exactly, and record process data accurately at every step
- Prepare materials, apply adhesives and coatings, and perform post-assembly inspection steps
- Keep the work area clean and organized to cleanroom-adjacent standards
- Flag process problems and suggest improvements — we want your eyes on this, not just your hands
- Work with our engineering team to refine procedures as we scale
What we're looking for
Required
- Manual dexterity and fine motor precision. You are comfortable doing careful, close work with your hands for extended periods. Experience with any craft that demands this — electronics assembly, jewelry, watch repair, lab bench work, sewing, model building — is relevant, whether or not it was a job.
- Patience and sustained attention. Cycles are long. Rushing produces scrap. You need to be able to stay engaged with slow, repetitive, high-stakes work.
- Bilingual Mandarin Chinese and English — spoken and written. This role works directly with our overseas manufacturing partner, and you will need to communicate with their staff and read materials they provide.
- Ability to read and follow written technical procedures precisely
- Comfortable working under a microscope or magnifier
- Able to reliably commute to Alhambra, CA
- High school diploma or equivalent
Nice to have
- Prior experience in optics, photonics, or precision optical assembly
- Electronics or medical device assembly experience
- ESD-controlled or cleanroom environment experience
- Familiarity with ISO 9001 or AS9100 quality systems
- Experience recording production data in a manufacturing tracking system
No engineering degree is required. We will train the right person on our specific process.
Why this job
- You'll learn a rare skill. Very few people in the United States do this work. You would develop a rare and valuable skill.
- Small team, real impact. You'll work directly with the founders and engineers. Your feedback changes the process.
- Growth path. As we scale, the first operators are the natural candidates to become leads, trainers, and quality technicians.
Details
- Schedule: Monday–Friday, day shift
- Location: On-site, Alhambra, CA 91803
- Employment type: Full-time
- Benefits: Health / dental / vision, paid time off
- Start date: August 1, 2026
How to apply
Apply through Indeed with your resume. A cover letter is optional, but if you have done precise handwork of any kind — professionally or not — tell us about it. That's what we most want to hear.
Pay: $22.00 - $27.00 per hour
Benefits:
- Dental insurance
- Health insurance
- Paid time off
- Vision insurance
Work Location: In person
Salary : $22 - $27