Fiber Optic Specialist - Third Shift
- Pay
- $38 – $48 per hour
- Location
- Devens, MA · On-site
- Job type
- Full-time
- Level
- Senior
- Experience
- 4+ years
- Listed
- 14 days ago
Skills & highlights for this role
- 4+ years fiber optics field application experience
- Attenuation, insertion loss, and spectral analysis measurements
- OTDR, OSA, OBR, and power meter use
- Lab-based fiber handling to known standards
- Fiber splicing
- Fiber coating removal and re-coating
- Fiber proof-testing
- Good communication skills
- Good attention to detail
Also useful
- 7+ years fiber optics field application experience
- Distributed sensing array experience
- Polyimide and variety of coated fiber experience
- 1+ year teaching or training fiber splicing
- Fiber cable assembly design, build, and test in cryogen and vacuum conditions
- Fiber optic work in confined or limited-space environments
- Specialty fiber splicing
- Basic materials science knowledge
What you'll do
- Conduct the handling, routing, splicing, testing, and potential repair of 1000's of fibers throughout the SPARC fusion machine
- Perform mechanical integration of small assemblies adjacent or in conjunction with the fiber work, such as passthrough flanges and enclosures for the fibers
- Install composite or polymer wrappings for the fibers and their enclosures
- Train other technicians as needed in the proper installation, splicing, routing, and measurement procedures
- Improve safety protocols for laser and fiber optic handling
- Fulfill manufacturing and R&D fiber needs
What we’re looking for
- 4+ years experience in fiber optics field applications
- Experience with taking attenuation, insertion loss, and spectral analysis measurements using various measurement equipment (such as OTDR, OSA, OBR, power meter, etc.)
- Must have experience fiber handling in a lab setting with known standards
Bonus points for
- 7+ years experience in fiber optics field applications
- Experience in utilizing distributed sensing arrays
- Experience with polyimide and a variety of coated fibers
- At least 1 year experience in teaching and/or training fiber splicing techniques and cable assemblies
- Experienced with designing, building, and testing fiber cable assemblies, particularly in cryogen and vacuum conditions
- Experience performing fiber optic work in environments with limited space or requiring odd positions.
- Skills:
- Fiber coating removal
- Fiber re-coating
- Specialty fiber splicing
- Fiber proof-testing
- Measurement and analysis techniques with optical tools and equipment such as interrogators, optical multiplexers, optical switches, fault locators, OTDR, etc.
- Knowledgeable about various optics sensing techniques and optical attenuation/insertion loss mechanisms
- Basic Materials Science knowledge
- Good communication skills
- Good attention to detail
Must-have Requirements
- Ability to occasionally lift up to 50 lbs
- Perform activities:
- Stooping, typing, standing, or sitting for extended periods of time
- May need to operate in small confined places in odd locations
- Work locations could include being on platforms around 25 feet high
- Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
- Willingness to travel or work required nights/weekends/on-call occasionally
- #LI-Onsite
- #CFS-NE
- At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.
This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.
About Commonwealth Fusion Systems
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.
Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.
Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.
If that’s you and this role fits, we want to hear from you.
Join the power movement as a Fiber Optic Specialist
The Fiber Optic Applications Technician is an exciting and evolving role with a responsibility for assisting R&D and production staff with all aspects of optical fiber work such as fiber splicing, testing, and incorporation of fibers into complex design features while minimizing damage and attenuation to the fiber throughout its lifetime.
The technician will ensure functional operation and preventative maintenance of equipment as well as continuous improvement. Responsibilities include close cooperation with Operations, Maintenance, Quality and other departments to ensure goals and objectives are met. This role will lead the way to making Earth sustainable for the future to come.
This work is conducted within a multi-disciplinary team of technicians and engineers. Participation and clear, concise communication while working with the team is crucial.
Hours: 10:00 pm - 6:30 am
Rate of pay: $38 - $48 per hour + 15% differential
Equal opportunity and legal notices
We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.
From Commonwealth Fusion Systems's careers page, first listed on Rolev.ai on October 26, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
What is the salary for the Fiber Optic Specialist - Third Shift role at Commonwealth Fusion Systems?
The Fiber Optic Specialist - Third Shift posting at Commonwealth Fusion Systems states compensation of $38 – $48 per hour. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Commonwealth Fusion Systems's official career site.
Where is the Fiber Optic Specialist - Third Shift job at Commonwealth Fusion Systems located?
This Fiber Optic Specialist - Third Shift position at Commonwealth Fusion Systems is located in Devens, MA (On-site). Always check Commonwealth Fusion Systems's application page for specific state eligibility or relocation policies.
What qualifications are required for Fiber Optic Specialist - Third Shift at Commonwealth Fusion Systems?
For the Fiber Optic Specialist - Third Shift role, Commonwealth Fusion Systems highlights 4+ years of relevant experience; experience with 4+ years fiber optics field application experience, Attenuation, insertion loss, and spectral analysis measurements, OTDR, OSA, OBR, and power meter use, Lab-based fiber handling to known standards, Fiber splicing, Fiber coating removal and re-coating. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Fiber Optic Specialist - Third Shift position at Commonwealth Fusion Systems?
This listing links directly to Commonwealth Fusion Systems's Lever application page. You can apply directly on Commonwealth Fusion Systems's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Lever application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.