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Lead Technician, Electrical Assembly Testing

Commonwealth Fusion Systems

Job Location:

Devens, MA - USA

Hourly Salary: USD 36 - 41

Posted: 9 November 2026 (5 hours ago)

Application Deadline: 6 February 2027

Vacancies: 1 Vacancy

Job Summary

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 were designing and building commercially viable fusion power plants. And were working with policymakers suppliers and many others to build the energy industry of the future.

Were in the best position to make it happen. Since 2018 weve raised $4 billion of capital making us the largest and leading fusion company in the world.

Now were looking for more thinkers doers builders and makers to join us. People wholl bring new perspectives solve tough problems and thrive as part of a team.

If thats you and this role fits we want to hear from you.

Join the power movement as a Lead Technician Electrical Assembly Testing

The Lead Technician is a critical operational leadership role responsible for overseeing the execution safety and scheduling of testing across three distinct domains: Electrical Instrumentation & Controls (I&C) and Fiber Optics.

This role manages a blended team of internal technicians and specialized vendor partners ensuring that daily testing troubleshooting and assembly milestones are hitsafely and efficiently. You will act as the operational bridge between Test Implementation Engineers Responsible Engineers (REs) and the technicians
executing work in the manufacturing environment.

Important Note on Technical Expertise: We do not expect candidates to be domainexperts in all three fields. We are looking for an experienced technical leader who possesses deep subject matter expertise in at least ONE of the core domains (Electrical I&C or Fiber Optics). The ideal candidate will leverage their primary expertise while learning the operational basics of the other domains to effectively schedule work clear roadblocks and manage specialized personnel.

What youll do:

Team Leadership & Task Assignment: Direct daily execution crew task assignments and shift scheduling in strict alignment with the rules of engagement outlined in the SATP Floor Ops Strategy. Lead morning daily syncs and oversee vendor partnerships
Test Readiness: Conduct pre-test walkdowns verify Bills of Materials (BOMs) ensure tools/materials are staged and coordinate schedule execution with Test Implementation Engineers
Quality & Issue Resolution: Manage and document Non-Conformance Reports (NCRs) troubleshoot test anomalies and interface directly with Responsible Engineers (REs) to resolve technical roadblocks
Safety Enforcement: Ensure strict adherence to EHS safety protocols including LOTO (Lockout/Tagout) exclusion zone management high voltage and cryogenic safety standards
Personnel Development: Serve as a mentor to support technicians helping build an internal succession pipeline for future technical leads

Domain Oversight (You will manage execution across these areas):

Electrical and I&C: High-voltage setups Paschen testing loop checks electrical diagnostics
and instrument verification
Fiber Optics: Handling routing splicing and testing of thousands of optical fibers (includingtaking attenuation insertion loss and spectral analysis measurements using OTDR OSA etc.)

What were looking for:

HS Diploma
Mid-level proficiency in Microsoft or Google productivity software
5 years of hands-on experience in at least one of the following domains: Electrical testing Instrumentation and Controls (I&C) OR Fiber Optics (handling splicing and OTDR testing)
Proven experience in a leadership supervisory or Lead Tech capacity directing the daily work of other technicians or managing vendor partnerships
Strong ability to read and interpret complex engineering drawings wiring diagrams and testing procedures
Experience documenting hardware issues managing NCRs and working directly with engineering teams to resolve procedural friction
Exceptional organizational skills with the ability to manage multiple concurrent testing schedules and prioritize critical-path deliverables

Bonus points for:

Cross-domain experience (e.g. an electrical technician with fiber optic experience or vice versa)
Licensed Journeyman or Master Electrician
Demonstrated experience with rough vacuum hardware such as pumps hoses and KF fittings
Experience with leak testing using mass spectrometers pressure proofing or low voltage testing

Must-have requirements:

Ability to occasionally lift up to 50 lbs
Perform activities such as stooping climbing typing standing or sitting for extended periods of time
Work in a facility that contains industrial hazards including heat cold noise fumes strong magnets lead (Pb) high voltage high current pressure systems and cryogenics
Willingness to travel or work required nights/weekends/on-call occasionally

$36 - $41 an hour

Salary range for this full-time position equity benefits.The actual salary will depend on level location qualifications and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations.

Benefits include:

Competitive compensation with equity

13 Company-wide Holidays

Flexible vacation days

10 sick days

Generous parental leave policy

Health dental and vision insurance

401(k) with employer matching

Professional growth opportunities

Team-building activities

#LI-Onsite

At CFS we excel in fast-paced environments driven by our values of integrity execution impact and self-critique. As we grow were eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

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.

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.

Required Experience:

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