Commonwealth Fusion Systems (CFS)

Fusion Machine Developer

https://www.cfs.energy/ External Link

Founding Year

2017

Location

Cambridge, Massachusetts, USA

Company Founders

Martin Greenwald

Bob Mumgaard

Zach Hartwig

Dan Brunner

Brandon Sorbom

Dennis Whyte

Leadership

Bob Mumgaard, CEO

Dan Brunner, CTO

Brandon Sorbom, Chief Scientific Officer

Description

Commonwealth Fusion Systems (CFS) is developing fusion energy systems which utilize high temperature superconducting (HTS) magnets. CFS is currently building SPARC, a tokamak with the stated goal of achieving scientific breakeven. After SPARC, CFS plans to develop and build ARC, an electricity producing fusion pilot plant.

Job Listings

Job titleLocation
Manufacturing Engineer - NPI External LinkDevens, Massachusetts, United States
Production Program Manager External LinkDevens, Massachusetts, United States
Production Program Manager External LinkSomerville, Massachusetts, United States
PLM Systems Architect External LinkDevens, Massachusetts, United States
Safety Engineer External LinkDevens, Massachusetts, United States
Senior Safety Engineer External LinkDevens, Massachusetts, United States
IT Infrastructure Engineer External LinkMilpitas, California, United States
Network and Infrastructure Engineer External LinkDevens, Massachusetts, United States
Senior OT Cybersecurity Engineer External LinkDevens, Massachusetts, United States
Service Desk Engineer External LinkMilpitas, California, United States
Facilities and Maintenance Electrician External LinkDevens, Massachusetts, United States
Facilities and Maintenance Electrician - Second or Third Shift External LinkDevens, Massachusetts, United States
Facilities and Maintenance Technician - Second or Third Shift External LinkDevens, Massachusetts, United States
Facilities Project Manager External LinkDevens, Massachusetts, United States
Controls Engineer External LinkDevens, Massachusetts, United States
Electrical Test Engineer - Weekend Shift External LinkDevens, Massachusetts, United States
Equipment Architecture Senior Manager External LinkDevens, Massachusetts, United States
Fiber Optic Specialist - Second Shift External LinkSomerville, Massachusetts, United States
Lab Technician External LinkDevens, Massachusetts, United States
Lab Technician - Second Shift External LinkDevens, Massachusetts, United States
Lead Lab Technician External LinkDevens, Massachusetts, United States
Lead Manufacturing Engineer External LinkDevens, Massachusetts, United States
Lead Production Technician External LinkDevens, Massachusetts, United States
Lead Production Technician - Second Shift External LinkDevens, Massachusetts, United States
Machinist External LinkDevens, Massachusetts, United States
Machinist - Second Shift External LinkDevens, Massachusetts, United States
Manufacturing Engineer - NPI External LinkDevens, Massachusetts, United States
Manufacturing Specialist External LinkSomerville, Massachusetts, United States
Manufacturing Specialist - Second Shift External LinkDevens, Massachusetts, United States
Manufacturing Specialist - Second Shift External LinkSomerville, Massachusetts, United States
Production Technician - Weekend - First Shift External LinkDevens, Massachusetts, United States
Production Technician - First Shift External LinkDevens, Massachusetts, United States
Production Technician - First Shift External LinkSomerville, Massachusetts, United States
Production Technician - Second Shift External LinkDevens, Massachusetts, United States
Production Technician - Second Shift External LinkSomerville, Massachusetts, United States
Production Technician - Third Shift External LinkDevens, Massachusetts, United States
Production Technician - Weekend - Second Shift External LinkDevens, Massachusetts, United States
Production Technician Supervisor External LinkSomerville, Massachusetts, United States
Production Technician Supervisor - Second or Third Shift External LinkDevens, Massachusetts, United States
Production Technician Supervisor - Weekend - Second Shift External LinkDevens, Massachusetts, United States
Robotic Welding Operator External LinkDevens, Massachusetts, United States
Robotic Welding Operator - Second Shift External LinkDevens, Massachusetts, United States
Vice President of Production External LinkDevens, Massachusetts, United States
Welder - First Shift External LinkDevens, Massachusetts, United States
Welder - Second Shift External LinkDevens, Massachusetts, United States
Welder - Third Shift External LinkDevens, Massachusetts, United States
Category Manager, Facilities External LinkDevens, Massachusetts, United States
Driver External LinkDevens, Massachusetts, United States
Inventory Coordinator - Weekend - First Shift External LinkDevens, Massachusetts, United States
Inventory Lead - Second Shift External LinkDevens, Massachusetts, United States
Inventory Supervisor External LinkDevens, Massachusetts, United States
Logistics Coordinator External LinkDevens, Massachusetts, United States
Material Coordinator - Weekend Shift External LinkDevens, Massachusetts, United States
Procurement Engineer External LinkDevens, Massachusetts, United States
Senior Buyer - Indirect External LinkDevens, Massachusetts, United States
Senior Operations Planner External LinkDevens, Massachusetts, United States
Senior Supplier Development Engineer External LinkDevens, Massachusetts, United States
Supplier Integration Manager External LinkDevens, Massachusetts, United States
Welding Engineer External LinkDevens, Massachusetts, United States
Nuclear & Radiological Engineer External LinkDevens, Massachusetts, United States
Radiation Effects Engineer External LinkDevens, Massachusetts, United States
Senior Technical Project Manager External LinkDevens, Massachusetts, United States
NDT II Technician - Second Shift External LinkDevens, Massachusetts, United States
NDT II Technician - Third Shift External LinkDevens, Massachusetts, United States
Quality Assurance Manager - Construction External LinkDevens, Massachusetts, United States
Quality Control Inspector - Second Shift External LinkDevens, Massachusetts, United States
Quality Control Inspector - Third Shift External LinkDevens, Massachusetts, United States
Quality Engineer External LinkSomerville, Massachusetts, United States
Senior Manager – Construction QA/QC External LinkDevens, Massachusetts, United States
Control Software Engineer - Plant External LinkDevens, Massachusetts, United States
Embedded Software Engineer External LinkDevens, Massachusetts, United States
Senior Software Engineer - Real-Time Control Systems & Simulation External LinkDevens, Massachusetts, United States
Manager, Structural Engineering External LinkDevens, Massachusetts, United States
Senior Structural Mechanical Engineer External LinkDevens, Massachusetts, United States
Director of Systems Engineering External LinkDevens, Massachusetts, United States
Corporate Controller External LinkDevens, Massachusetts, United States
Cost Analyst External LinkDevens, Massachusetts, United States
Financial Analyst External LinkDevens, Massachusetts, United States
Operations Specialist External LinkMilpitas, California, United States
Manager, Benefits External LinkDevens, Massachusetts, United States
Principal People Operations Data Analyst External LinkDevens, Massachusetts, United States
Senior Talent Acquisition Recruiter - Contract External LinkMilpitas, California, United States
Molten Salt Engineer External LinkDevens, Massachusetts, United States
Principal Chemical Engineer External LinkDevens, Massachusetts, United States
Principal Molten Salt Component Specialist External LinkDevens, Massachusetts, United States
Process Engineer External LinkDevens, Massachusetts, United States
Senior Chemical Engineer External LinkDevens, Massachusetts, United States
Senior Molten Salt Engineer External LinkDevens, Massachusetts, United States
Senior Process Engineer External LinkDevens, Massachusetts, United States
Senior Salt Operations Engineer External LinkDevens, Massachusetts, United States
Materials Engineer - Platings and Coatings External LinkDevens, Massachusetts, United States
Materials Test Engineer External LinkDevens, Massachusetts, United States
Materials Test Engineer II External LinkDevens, Massachusetts, United States
Materials Test Operator - Second Shift External LinkDevens, Massachusetts, United States
Head of Plasma Physics External LinkDevens, Massachusetts, United States
Senior Scientific Software Engineer External LinkDevens, Massachusetts, United States
Manager, R&D Test Engineering External LinkDevens, Massachusetts, United States
Principal R&D Instrumentation and Control Engineer External LinkDevens, Massachusetts, United States
R&D Fluids Engineer External LinkDevens, Massachusetts, United States
R&D Instrumentation and Control Engineer External LinkDevens, Massachusetts, United States
R&D Mechanical Test Engineer External LinkDevens, Massachusetts, United States
R&D Production Test Engineer External LinkDevens, Massachusetts, United States
R&D Technical Program Manager External LinkDevens, Massachusetts, United States
R&D Technician External LinkDevens, Massachusetts, United States
R&D Test Engineer External LinkDevens, Massachusetts, United States
Senior Thermal Fluids Engineer/Analyst External LinkDevens, Massachusetts, United States
Controls Software Engineer External LinkMilpitas, California, United States
Mechanical Engineer External LinkMilpitas, California, United States
Senior Mechanical Engineer External LinkMilpitas, California, United States
Senior Technical Project Manager External LinkMilpitas, California, United States
Chief Engineer - Plant Design and Engineering External LinkDevens, Massachusetts, United States
Mechanical Project Engineer External LinkDevens, Massachusetts, United States
Electronics Engineer External LinkDevens, Massachusetts, United States
Lead Electrical Test Engineer External LinkDevens, Massachusetts, United States
RF Integration Engineer External LinkDevens, Massachusetts, United States
Senior Electrical Engineer - Battery Storage Systems External LinkDevens, Massachusetts, United States
Senior Technical Project Manager External LinkDevens, Massachusetts, United States
Instrument and Control Valve Commissioning Technician External LinkDevens, Massachusetts, United States
Senior Process Instrumentation and Control Engineer External LinkDevens, Massachusetts, United States
Senior Manager, Fusion Gas Facility Operations External LinkDevens, Massachusetts, United States
Senior Manager, Fusion Gas Recovery Test Team External LinkDevens, Massachusetts, United States
Lead Lab Assembly Technician External LinkDevens, Massachusetts, United States
Manufacturing Process Senior Manager - Assembly External LinkDevens, Massachusetts, United States
Senior Field Mechanical Engineer - Assembly External LinkDevens, Massachusetts, United States
Senior Mechanical Engineer - Assembly External LinkDevens, Massachusetts, United States
Mechanical Engineer - TF Winding Pack External LinkDevens, Massachusetts, United States
Mechanical Engineering Manager External LinkDevens, Massachusetts, United States
Senior Mechanical Engineer - HTS Magnet Feeder System External LinkSomerville, Massachusetts, United States
Scientist - Boundary Particle Transport External LinkDevens, Massachusetts, United States
Diagnostic Mechanical Engineer External LinkDevens, Massachusetts, United States
Mechanical Engineering Manager - Port Plugs External LinkDevens, Massachusetts, United States
Senior Instrumentation Engineer - Instrumentation Integration External LinkDevens, Massachusetts, United States
Senior Mechanical Engineer - Plasma Facing Components External LinkDevens, Massachusetts, United States
Senior Mechanical Engineer – Antennas External LinkDevens, Massachusetts, United States
Senior Mechanical Engineer – In-Vessel Coils External LinkDevens, Massachusetts, United States
Senior RF Antenna Engineer External LinkDevens, Massachusetts, United States
Tokamak Instrumentation Optical Engineer External LinkDevens, Massachusetts, United States
Intern - Electrical Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Electromagnetic Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Environmental, Health, Safety and Security - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Health Physics/Radiation Protection - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Marketing - Content, Social Media & Video - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Marketing - External & Internal Communications - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Materials Engineer / Welding Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Mechanical/Manufacturing Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Nuclear Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Physical Security Operations - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Plant Instrumentation and Control Engineer - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Plasma Physics - Summer 2025 External LinkDevens, Massachusetts, United States
Intern - Supply Chain Summer 2025 External LinkDevens, Massachusetts, United States

Funding received (investment)

Funding received (nondilutive)

DateAmountFunder(s)Description
September 27, 2024$2,500,000CHADWICK: Co-Optimization of an Integral, Layered Materials Solution for Compact Tokamak Vessels External Link
August 08, 2024INFUSE: SOLPS-derived separatrix operating space scalings for informing power exhaust scenarios External Link
August 08, 2024INFUSE: Elemental Analysis of Fluoride Molten Salt Using Laser Induced Breakdown Spectroscopy (LIBS) External Link
July 25, 2023INFUSE: Electrochemical Evaluation of Hydrogen Concentration and Diffusivity in FLiBe External Link
July 25, 2023INFUSE: Informing ARC divertor design and plasma facing material selection through integrated modeling External Link
July 25, 2023INFUSE: Deuterium retention in boron dust External Link
May 31, 2023Milestone-Based Fusion Development Program External Link
January 17, 2023INFUSE: Oxide Dispersion Strengthened Ferritic Steel Wire Feedstock Development for Large-Format Additive Manufacturing External Link
January 17, 2023INFUSE: A modern neutronics-modeling uncertainty methodology towards a future fusion neutronics handbook External Link
June 15, 2022INFUSE: Machine learning assisted prediction of tungsten heavy alloy plasma facing component performance for fusion energy applications External Link
June 15, 2022INFUSE: Assessing ELM mitigation by pellet triggering in SPARC low-collisionality discharges External Link
June 15, 2022INFUSE: Agile design workflow for plasma-facing fusion components with coupled thermofluidic and structural optimization External Link
June 15, 2022INFUSE: Characterization of Turbulent Transport and Confinement in ARC with STEP and CGYRO External Link
November 22, 2021INFUSE: Neutron Ion Handshake for Fusion Materials External Link
November 22, 2021INFUSE: Magnetic Pumps for Molten Salt Fusion Devices External Link
June 04, 2021INFUSE: Active Redox Control of Molten Salts For Fusion Blankets External Link
June 04, 2021INFUSE: Informing Layout and Performance Requirements for SPARC Massive Gas Injection External Link
November 25, 2020INFUSE: Time-Dependent Boundary Modeling to Inform Design of SPARC Diagnostic and Actuators External Link
August 14, 2020INFUSE: SPARC 3D field physics and support of the non-axisymmetric coil assessment External Link
August 14, 2020INFUSE: Advanced manufacturing workflows for tokamak internal components External Link
August 14, 2020INFUSE: Baselining a tritium accountancy and safety case for a molten salt liquid immersion fusion blanket External Link
April 06, 2020$1,374,368BETHE: Pulsed High Temperature Superconducting Central Solenoid For Revolutionizing Tokamaks External Link
September 23, 2019INFUSE: Divertor Plasma Simulations External Link
September 23, 2019INFUSE: Superconducting Cable Quench Detection External Link
September 23, 2019INFUSE: Divertor Component Testing External Link
September 23, 2019INFUSE: Alpha Particle Diagnostics Simulation External Link

Projects