Commonwealth Fusion Systems Tech Stack

Commercial fusion energy systems manufacturer with superconducting magnet technology

Energy Technology Devens, Massachusetts 501–1,000 employees Founded 2018 Privately Held

Commonwealth Fusion Systems manufactures fusion power plant hardware, centered on its SPARC facility commissioning and high-temperature superconducting magnet production. The stack spans CAD/simulation (SolidWorks, NX, Ansys, COMSOL), industrial control (PLC, EtherCAT, PROFINET, Modbus), and project management (Primavera P6, Jira), reflecting a hardware-heavy, manufacturing-focused org. Hiring is heavily weighted toward senior engineering and manufacturing roles—signaling a transition from R&D prototyping into production scaling—while internal pain points cluster around cost control, NDT (non-destructive testing) capability gaps, and facility expansion, typical friction points when moving fusion concepts into manufacturing reality.

Tech Stack 34 technologies

Core StackJira Confluence Primavera P6 SolidWorks AutoCAD Python C++ Rust Linux GMAW GTAW Micrometer SPARC Siemens NX CMMS Microsoft Office Microsoft Project PLC EtherCAT PROFINET Modbus Git NX Ansys COMSOL ANSYS Excel SQL Word PowerPoint+2 more

What Commonwealth Fusion Systems Is Building

◆Challenges

Project cost overruns
Operating in extreme environment
Moving diagnostics through fabrication
Transition from r&d into manufacturing
Improve data accuracy
Cost variance analysis
Accurate cost allocation
Gaps in ndt technology
Scaling ndt capabilities for future arc fleet
Expanding facilities for advanced manufacturing

▲Active Projects

Commissioning sparc fusion facility
Sparc diagnostic support equipment delivery
Central solenoid magnet design for sparc
Thin-film deposition technology
Fp&a for manufacturing business
Manufacturing superconducting magnets
Sparc project
Arc fleet scaling
Sparc manufacturing and assembly
Internal controls improvement

Hiring Activity

Accelerating80 roles · 35 in 30d

Department

Engineering

Manufacturing

Ops

Finance

Construction

Research

Operations

Data

Seniority

Senior

Mid

Manager

Director

Principal

Junior

Staff

Notable leadership hires: Facilities Director

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About Commonwealth Fusion Systems

Commonwealth Fusion Systems designs and manufactures commercial fusion power plants, with the SPARC facility as its near-term demonstration platform. The company operates across hardware design (magnet systems, diagnostics, cryogenic infrastructure), fabrication and assembly, and facility operations, serving an energy market seeking zero-carbon baseload power. Founded in 2018 and headquartered in Devens, Massachusetts, CFS employs 501–1,000 staff and is privately held. Active projects include SPARC commissioning, superconducting magnet manufacturing, thin-film deposition technology, and arc fleet scaling—reflecting a pathway from prototype validation toward multi-unit production. Organizational challenges center on manufacturing cost discipline, NDT scaling, and facilities expansion.

HeadquartersDevens, Massachusetts

Company Size501–1,000 employees

Founded2018

Hiring MarketsUnited States

Frequently Asked Questions

What is Commonwealth Fusion Systems working on?

CFS is commissioning the SPARC fusion facility, designing and manufacturing superconducting magnets (including a central solenoid magnet for SPARC), delivering diagnostic support equipment, scaling thin-film deposition technology, and planning an ARC fleet. Internal focus includes manufacturing and assembly workflows, FP&A for the manufacturing business, and facility expansion.

What tech stack does Commonwealth Fusion Systems use?

Design and simulation: SolidWorks, Siemens NX, Ansys, COMSOL. CAD/drafting: AutoCAD. Industrial control: PLC, EtherCAT, PROFINET, Modbus. Project/facilities management: Primavera P6, Microsoft Project, Jira, Confluence, CMMS. Core languages: Python, C++, Rust; Linux. Fabrication: GMAW, GTAW welding; Micrometer metrology.