Fiber Optic Applications Technician — First Shift

Fusion Energy Base; Harvard (MA); On-site; USD 52,000 - 66,000; Full time

Benefits offered by this job

Equity

Health, dental, and vision insurance

401(k) with employer matching

Generous paid time off

Flexible holidays

Parental leave

Professional growth opportunities

Team-building activities

Job summary

Commonwealth Fusion Systems is seeking a Fiber Optic Specialist for first shift in Devens, MA. The role supports R&D and manufacturing with fiber splicing, testing, and integration of fibers into complex designs, while maintaining fiber quality and minimizing attenuation.

You will collaborate with Operations, Maintenance, Quality, and other teams to meet goals. This role requires hands-on work with high-precision optical components and a strong emphasis on safety and continuous improvement.

Qualifications

• Experience with fiber optics field applications.
• Ability to lift up to 50 lbs.
• Willingness to travel or work nights/weekends/on-call.

Responsibilities

• Handle, route, splice, test thousands of fibers in the SPARC fusion machine.
• Integrate small assemblies with fiber work (passthrough flanges, enclosures).
• Install fiber wrappings and enclosures.
• Train technicians in installation, splicing, routing, and measurement procedures.
• Improve safety protocols for laser and fiber optic handling.
• Fulfill manufacturing and R&D fiber needs.

Skills

Fiber splicing

Fiber testing

Optical fiber handling

Safety awareness

Tools

OTDR

Interrogators

Optical switches

Job description

Commonwealth Fusion Systems is seeking a Fiber Optic Specialist for first shift in Devens, MA. The role supports R&D and manufacturing with fiber splicing, testing, and integration of fibers into complex designs, while maintaining fiber quality and minimizing attenuation.

You will collaborate with Operations, Maintenance, Quality, and other teams to meet goals. This role requires hands-on work with high-precision optical components and a strong emphasis on safety and continuous improvement.