Commonwealth Fusion Systems jobs

Senior Realtime Controls Software Engineer

Devens, MA · Hybrid · Posted Nov 9, 2026

Senior Strategic Program Manager, Open Innovation

Devens, MA · Hybrid · Posted Oct 28, 2026

Intern - Composites and Insulation Materials - Summer 2027

Somerville, MA · Onsite · Posted Oct 27, 2026

Intern - I&C and Network Engineer - Spring or Summer 2027

Devens, MA · Onsite · Posted Oct 27, 2026

Intern - Microwave Engineer - Summer 2027

Devens, MA · Onsite · Posted Oct 26, 2026

Intern - Cryogenics Engineer - Spring 2027

Devens, MA · Onsite · Posted Oct 26, 2026

Senior Manufacturing Engineer - Second Shift

Devens, MA · Onsite · Posted Oct 26, 2026

Fiber Optic Specialist - First Shift

Somerville, MA · Onsite · Posted Oct 22, 2026

Treasury and Tax Analyst

Devens, MA · Hybrid · Posted Oct 22, 2026

Technical Accounting and Internal Controls Lead

Devens, MA · Hybrid · Posted Oct 22, 2026

Accounts Payable Specialist

Devens, MA · Hybrid · Posted Oct 22, 2026

Materials Test Operator - Contract

Devens, MA · Onsite · Posted Oct 21, 2026

Staff OT/IT Support Engineer

Milpitas, CA · Onsite · Posted Oct 16, 2026

Senior Mechanical Engineer

Milpitas, CA · Onsite · Posted Oct 16, 2026

Field Assembly Manager

Devens, MA · Onsite · Posted Oct 16, 2026

Intern - Nuclear Engineer - Summer 2027

Devens, MA · Onsite · Posted Oct 15, 2026

Intern - Assembly Technical Project Manager - Spring 2027

Devens, MA · Onsite · Posted Oct 15, 2026

Intern - Mechanical Equipment Engineer - Spring 2027

Devens, MA · Onsite · Posted Oct 15, 2026

Intern - Health Physics - Spring or Summer 2027

Devens, MA · Onsite · Posted Oct 15, 2026

Molten Salt Engineer

Devens, MA · Onsite · Posted Oct 14, 2026

Techno-Economic Analyst

Devens, MA · Onsite · Posted Oct 14, 2026

Senior Controls Engineer

Devens, MA · Onsite · Posted Oct 14, 2026

Enterprise Systems Administrator

Devens, MA · Hybrid · Posted Oct 14, 2026

Principal Mechanical Engineer - Web Handling

Milpitas, CA · Onsite · Posted Oct 14, 2026

Environmental, Health & Safety Technician

Devens, MA · Onsite · Posted Oct 9, 2026

Assembly Test Implementation Engineer

Devens, MA · Onsite · Posted Oct 8, 2026

Equipment Technician

Milpitas, CA · Onsite · Posted Oct 7, 2026

Senior Enterprise Solution Architect

Milpitas, CA · Onsite · Posted Oct 7, 2026

Controls Engineer

Devens, MA · Onsite · Posted Oct 7, 2026

Production Technician Supervisor - Second Shift

Devens, MA · Onsite · Posted Oct 7, 2026

Senior Technical Project Manager - Design/Assembly

Devens, MA · Onsite · Posted Oct 7, 2026

Manufacturing Engineer - Contract

Somerville, MA · Onsite · Posted Oct 5, 2026

Welder - Differential Pay for Weekend & Night Shifts

Devens, MA · Onsite · Posted Oct 5, 2026

Staff Supply Chain Engineer - Molten Salts

Devens, MA · Remote · Posted Oct 2, 2026

Senior Equipment Engineering Project Manager

Devens, MA · Onsite · Posted Oct 1, 2026

Power Business Research and Analytics Manager

Devens, MA · Hybrid · Posted Oct 1, 2026

Subassemblies Specialist

Devens, MA · Onsite · Posted Sep 30, 2026

Senior Manufacturing Engineer - First Shift

Devens, MA · Onsite · Posted Sep 30, 2026

Senior Manufacturing Engineer - Assembly

Devens, MA · Onsite · Posted Sep 30, 2026

Project Manager, Project Development

Devens, MA & Richmond, VA · Hybrid · Posted Sep 30, 2026

Supply Chain Operations Coordinator - First Shift

Devens, MA · Onsite · Posted Sep 30, 2026

Staff Fuel Cycle & Blanket Test Engineer

Devens, MA · Onsite · Posted Sep 30, 2026

CSA Project Engineer

Devens, MA & Richmond, VA · Hybrid · Posted Sep 28, 2026

Supply Chain Coordinator - Contract

Ayer, MA · Onsite · Posted Sep 28, 2026

R&D Technician - First Shift

Devens, MA · Onsite · Posted Sep 28, 2026

Staff Materials Engineer - Metallurgical Engineering

Devens, MA · Onsite · Posted Sep 23, 2026

Staff Computational Materials Scientist

Devens, MA · Hybrid · Posted Sep 23, 2026

Senior Field Mechanical Engineer - Assembly - Second Shift

Devens, MA · Onsite · Posted Sep 23, 2026

Senior R&D Technical Project Manager

Devens, MA · Onsite · Posted Sep 23, 2026

Senior Mechanical Engineer, Process Equipment

Devens, MA · Hybrid · Posted Sep 22, 2026

RF Electronics Engineer

Devens, MA · Onsite · Posted Sep 22, 2026

Staff Supplier Integration Manager - ARC

Devens, MA · Hybrid · Posted Sep 21, 2026

Senior Test Planning Engineer - Assembly

Devens, MA · Onsite · Posted Sep 21, 2026

Operations Coordinator - Assembly

Devens, MA · Onsite · Posted Sep 21, 2026

Manager, Process Engineering - Assembly

Devens, MA · Onsite · Posted Sep 21, 2026

Staff Mechanical Engineer - Remote Maintenance

Devens, MA · Hybrid · Posted Sep 21, 2026

Senior Manager, Accounting Operations

Devens, MA · Hybrid · Posted Sep 21, 2026

Assistant General Counsel – Commercial

Devens, MA · Hybrid · Posted Sep 18, 2026

Senior Mechanical Engineer - Remote Maintenance

Devens, MA · Hybrid · Posted Sep 18, 2026

Staff Scientist - Plasma Material Interaction

Devens, MA · Onsite · Posted Sep 18, 2026

Senior Process Engineer

Devens, MA · Onsite · Posted Sep 16, 2026

Fiber Optic Specialist - First Shift

Devens, MA · Onsite · Posted Sep 16, 2026

Electrical Engineer

Devens, MA · Onsite · Posted Sep 11, 2026

Senior Technical Project Manager - Magnet Production

Devens, MA · Onsite · Posted Sep 11, 2026

Director, Corporate FP&A

Devens, MA · Onsite · Posted Sep 11, 2026

Senior RF Test Engineer

Devens, MA · Onsite · Posted Sep 11, 2026

Manufacturing Engineer - First Shift

Devens, MA · Onsite · Posted Sep 9, 2026

Supply Chain Operations Supervisor

Devens, MA · Onsite · Posted Sep 9, 2026

Staff Electrical Engineer

Milpitas, CA · Onsite · Posted Sep 9, 2026

Senior R&D Test Engineer - Fluid Systems

Devens, MA · Onsite · Posted Sep 8, 2026

Quality Engineer - Nights & Weekend Shifts + Differential Pay

Devens, MA · Onsite · Posted Sep 4, 2026

Lead Assembly Technician - Third Shfit

Devens, MA · Onsite · Posted Sep 4, 2026

Fiber Optic Specialist - Weekend - Second Shift (Fri, Sat, Sun)

Devens, MA · Onsite · Posted Sep 4, 2026

Fiber Optic Specialist - Third Shift

Devens, MA · Onsite · Posted Sep 4, 2026

Molten Salt Engineer

Devens, MA · Onsite · Posted Sep 2, 2026

Director, Supply Chain

Devens, MA · Hybrid · Posted Sep 2, 2026

Lead Production Technician - Third Shift

Devens, MA · Onsite · Posted Sep 2, 2026

Supply Chain Operations Coordinator - First Shift - Contract

Devens, MA · Onsite · Posted Sep 2, 2026

Senior Manufacturing Engineer - Third Shift

Devens, MA · Onsite · Posted Aug 26, 2026

Director, Manufacturing, Operations & Supply Chain Finance

Devens, MA · Hybrid · Posted Aug 26, 2026

Senior Manager, Mechanical Engineering — Vacuum Vessel

Devens, MA · Onsite · Posted Aug 24, 2026

Mechanical Engineer – Cable Magnets

Devens, MA · Onsite · Posted Aug 24, 2026

Senior Embedded Software Engineer

Devens, MA · Hybrid · Posted Aug 21, 2026

Senior Data and Operations Software Engineer

Devens, MA · Hybrid · Posted Aug 20, 2026

Principal Scientist - Radio Frequency Plasma Heating

Devens, MA · Onsite · Posted Aug 20, 2026

Senior Mechanical Engineer – Cable Magnets

Devens, MA · Hybrid · Posted Aug 20, 2026

Senior Mechanical Engineer - Assembly Equipment

Devens, MA · Onsite · Posted Aug 19, 2026

NDT Manager – Responsible Level III

Devens, MA · Onsite · Posted Aug 14, 2026

Staff Modeling and Simulation Engineer

Milpitas, CA · Onsite · Posted Aug 7, 2026

Principal RF Systems Engineer

Devens, MA · Onsite · Posted Aug 6, 2026