Commonwealth Fusion Systems
Fiber Optic Specialist - Third Shift
Devens, MA · On-site · Full-time · Posted Sep 4, 2026
- Experience
- 4+ years required; 7+ years preferred.
About the job
Performs fiber-optic handling, routing, splicing, testing, repair, and integration work supporting R&D and manufacturing for the SPARC fusion machine.
What you'll do
- Handle, route, splice, test, and potentially repair optical fibers; install fiber wrappings and integrate small assemblies.
- Maintain and improve equipment and safety procedures, and support manufacturing and R&D fiber needs.
- Train technicians and coordinate with engineering, operations, maintenance, and quality teams.
What they ask for
- 4+ years of experience in fiber optics field applications.
- Experience measuring attenuation, insertion loss, and spectral analysis with optical measurement equipment.
- Experience handling fiber in a lab setting with known standards.
- Ability to meet stated physical and worksite requirements, including occasional lifting up to 50 lbs and working nights/weekends/on-call occasionally.
Nice to have
- 7+ years of experience in fiber optics field applications.
- Experience with distributed sensing arrays, polyimide and varied coated fibers, fiber training, or cable assemblies in cryogenic or vacuum conditions.
Pay
USD 38–48 per-hour-wage (base salary)
Tools
OTDR, OSA, OBR, power meter
Model-written summary · the original posting is authoritative