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Cfsenergy

144 open positions
Last updated Nov 11, 2026
Remote2%
Hybrid14%
On-site85%
Salary shown100%
Avg. listing69d
This month15 new · 14 closed

Senior Realtime Controls Software Engineer

$107k–$160k/year
81
High

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

Software EngineerSoftware EngineeringFull-TimeSenior
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3 0 0 New 2d ago

Lead Technician, Electrical Assembly Testing

$36–$41/hour
79
High

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

OtherFull-TimeLead
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4 0 0 4d ago

Senior Diagnostics Mechanical Engineer

$134k–$205k/year
56
Med

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

EngineeringMechanical EngineerFull-TimeSenior
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3 0 0 7d ago

Diagnostics Mechanical Engineer

$107k–$160k/year
56
Med

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

EngineeringMechanical EngineerFull-TimeMid
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3 0 0 7d ago

R&D Test Engineer

$107k–$160k/year
56
Med

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

EngineeringQa EngineerFull-TimeMid
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4 0 0 7d ago

Manufacturing Engineer - Third Shift

$107k–$160k/year
49
Low

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

Manufacturing EngineerManufacturing & ProductionFull-TimeMid
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2 0 0↻ Repost 7d ago

Senior R&D Engineer

$134k–$205k/year
56
Med

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

EngineeringR&D EngineerFull-TimeSenior
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4 0 0 7d ago

Senior Finance Analyst, Operations

$134k–$205k/year
58
Med

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

OperationsOperations AnalystFull-TimeSenior
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1 0 0 7d ago

R&D Test Engineer - Electrical Power Systems

$107k–$160k/year
49
Low

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

EngineeringQa EngineerFull-TimeMid
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2 0 0↻ Repost 7d ago

Intern - R&D Multiphysics Simulation Intern - Spring or Summer 2027

$25–$38/hour
56
Med

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

OtherInternshipEntry
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3 0 0 8d ago

Subassemblies Technician

$30–$52/hour
56
Med

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

OtherFull-TimeMid
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2 0 0 9d ago

Senior Manufacturing Engineer - Assembly - Second Shift

$134k–$205k/year
56
Med

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

Manufacturing EngineerManufacturing & ProductionFull-TimeSenior
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2 0 0 9d ago

Hiring Event for Production Technicians: First, Second and Third shifts available

$30–$47/hour
56
Med

Join us at the Commonwealth Fusion Systems Somerville hiring events on November 17th or 18th from 5:30 p.m. - 8:00 p.m. Are you ready to take the next step in your career — and to literally build the future? Apply to join our hiring events at CFS’ facility in Somerville, Massachusetts, on the evenin

EngineeringSecurityFull-TimeMid
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1 0 0 9d ago

Shift Operator- SPARC - Third Shift

$30–$52/hour
41
Low

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

OtherFull-TimeMid
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5 0 0↻ Repost 12d ago

Intern - Electrical/Electromechanical Engineer - Spring 2027

$25–$38/hour
47
Low

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

EngineeringMechanical EngineerInternshipEntry
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3 0 0 12d ago

Intern - Mechanical and Magnet Engineer - Spring or Summer 2027

$25–$38/hour
47
Low

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

OtherInternshipEntry
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4 0 0 12d ago

Intern - Structural Engineer - Summer 2027

$25–$38/hour
47
Low

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

EngineeringStructural EngineerInternshipEntry
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4 0 0 12d ago

Intern - Fusion Fuel Systems - Spring or Summer 2027

$25–$38/hour
47
Low

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

OtherInternshipEntry
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4 0 0 12d ago

Intern - R&D Test Engineer - Spring or Summer 2027

$25–$38/hour
47
Low

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

EngineeringQa EngineerInternshipEntry
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4 0 0 12d ago

Senior Power Electronics Engineer

$134k–$205k/year
41
Low

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

EngineeringElectronics EngineerFull-TimeSenior
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2 0 0 13d ago