Commonwealth Fusion Systems

Project Engineering Manager

BS in Mechanical or Electrical engineering; 10+ years in industrial plant design/construction; knowledge of construction change management; experience with 3D modeling; strong communication and coordination skills.

Senior Manager, Cost Accounting

Senior-level cost accounting with 7+ years’ experience, 5+ years in supervision; ERP expertise; strong cost analysis; grant accounting a plus.

Senior Manager, Corporate Accounting

Lead monthly close, GAAP reporting, ERP systems (Odoo), financial statements, audit liaison, and team supervision.

Diagnostician

Bachelor’s degree in engineering; experience with scientific instruments; Python/ Matlab/ C++ skills; diagnostic systems knowledge; able to lift 50 lbs; willingness to travel or work nights/weekends/on-call.

Staff Supplier Integration Manager - Capital Projects

Supplier Integration Manager

10+ years procurement or supply chain experience; Bachelor’s in Engineering, Supply Chain Management, or Business; willingness to travel and work nights/weekends/on-call; ability to lead complex procurement initiatives.

Quality Control Manager

Lead a QC team in a high-rigor manufacturing environment; oversee metrology, inspection protocols, and supplier inspections; implement ISO 9001:2015 and ASME Y14.5 standards; capable of lifting up to 50 lbs and occasional travel.

Senior Scientist – ARC Plasma Instrumentation

Senior Scientist

PhD in experimental plasma physics or closely related field; 5+ years in plasma physics or fusion research; experience designing, building, and operating plasma instrumentation; able to work on multi-disciplinary engineering projects; independent researcher; knowledge of tokamak diagnostics; Python experience a bonus; willingness to travel and work nights/weekends/on-call; able to collaborate with diverse institutions.

Cfsenergy

Vice President of Financial Planning and Analysis

15+ years in finance with VP-level FP&A leadership; expertise in manufacturing FP&A and capital-intensive projects; build scalable financial systems and data-driven decision making.

Senior Manager, Controls Engineering

Lead a controls engineering team; manage automated manufacturing systems; translate strategy into plans; oversee design, procurement, commissioning and sustaining operations; recruit and develop talent.

Senior Financial Analyst

Financial Analyst

Bachelor's in Finance/Accounting/Economics; 7+ years FP&A and business partnering; strong modeling; ERP/financial software proficiency; excellent communication.

Assembly Process Engineer - Contract

Assembly Process Engineer

2+ years in integrating large mechanical structures; HS diploma; bachelor’s or associate degree; experience writing work instructions; safety conscious; data-driven; strong communication.

Principal R&D Technical Project Manager

Technical Project Manager

Lead cross-functional teams on complex, first-of-a-kind projects; strong PM skills; communicate with executives; planning, scheduling, risk and budget management; travel and industrial environment.

Senior Control Software Engineer

Control Software Engineer

Design, implement, and verify control software for real-time systems; develop interfaces; contribute to tools; strong Python and real-time language skills.

Senior Director of Facilities, Maintenance, and Construction

Bachelor’s degree in Engineering or related field; 5+ years in director-level facilities/maintenance/construction roles; experience with building industrial facilities >200,000 sq ft and >$100M projects.

Senior Multiphysics Modeler

Expert in heat and mass transport modeling; experience in process modeling and programming; ability to lead multi-disciplinary engineering projects.

Title	Location	Date
Project Engineering Manager Full Time · $110K-$185K · 10+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Mar 11, 2026
Senior Manager, Cost Accounting Full Time · $150K-$225K · 7+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Mar 9, 2026
Senior Manager, Corporate Accounting Full Time · $150K-$225K · 7+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Mar 9, 2026
Diagnostician Full Time · $110K-$185K Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Mar 5, 2026
Staff Supplier Integration Manager - Capital Projects Full Time · $130K-$200K · 10+ YOE Richmond, Virginia, United States · Hybrid	Richmond, Virginia, United States Hybrid	Mar 4, 2026
Quality Control Manager Full Time · $110K-$185K · 7+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Mar 3, 2026
Senior Scientist – ARC Plasma Instrumentation Full Time · $110K-$185K · 5+ YOE Devens, Massachusetts, United States · Hybrid	Devens, Massachusetts, United States Hybrid	Feb 26, 2026
Vice President of Financial Planning and Analysis Full Time · $275K-$350K · 15+ YOE Devens, Massachusetts, United States · Hybrid	Devens, Massachusetts, United States Hybrid	Feb 23, 2026
Senior Manager, Controls Engineering Full Time · $150K-$225K · 5+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Feb 13, 2026
Senior Financial Analyst Full Time · $110K-$185K · 7+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Feb 3, 2026
Assembly Process Engineer - Contract Contract · $104K-$129K/yr · 2+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Jan 28, 2026
Principal R&D Technical Project Manager Full Time · $175K-$240K · 20+ YOE Devens, Massachusetts, United States · Onsite	Devens, Massachusetts, United States Onsite	Jan 27, 2026
Senior Control Software Engineer Full Time · $140K-$200K Devens, Massachusetts, United States · Hybrid	Devens, Massachusetts, United States Hybrid	Dec 12, 2025
Senior Director of Facilities, Maintenance, and Construction Full Time · $250K-$350K · 5+ YOE Devens or Somerville · Onsite	Devens or Somerville Onsite	Dec 11, 2025
Senior Multiphysics Modeler Full Time · $110K-$185K · 7+ YOE Chesterfield or United States · Hybrid	Chesterfield or United States Hybrid	Dec 2, 2025

Activities	fusion reactor designsuperconducting magnet manufacturingnuclear engineering researchclean power generationplasma diagnostic development
Headquarters	US
Industries	EnergyNuclear Engineering
Name	Commonwealth Fusion Systems
Employees	1,000
Type	Private
Tagline	Designing and building commercial fusion energy power plants.
Founded	2,018
Website	cfs.energy
Latest Funding Round	Series B
Latest Funding Year	2,025
Latest Funding Amount	863,000,000
Latest Investors	NVenturesBrevan HowardMorgan Stanley

Commonwealth Fusion Systems

About Commonwealth Fusion Systems