Jobs at Commonwealth Fusion Systems

Build and inspect precision, ultra-high-vacuum subassemblies for the SPARC Tokamak, maintaining cleanliness and quality standards. Oversee contract technicians, perform helium leak testing and equipment checkouts, support tooling and component design, align optical systems, and assist with installation. The role also involves resolving nonconformances, using machining and measurement tools, rigging heavy components, and eventually transitioning to machine assembly.

Designs, implements, and optimizes manufacturing processes and assembly lines in a high-mix, low-volume environment. Responsibilities include process documentation, manufacturability collaboration, Lean and Six Sigma implementation, tooling and equipment procurement, troubleshooting, time studies, continuous improvement, safety compliance, and automation evaluation. The role requires hands-on leadership, cross-functional collaboration, and work in an industrial facility with various hazards.

Manage siting, land acquisition support, regulatory engagement, environmental permitting, and stakeholder outreach for commercial fusion power plant development. Lead permit applications, environmental due diligence, utility and land-use approvals, consultant and contractor coordination, regulatory proceedings, compliance systems, schedules, risk registries, and multi-site permitting frameworks. Collaborate with engineering, legal, finance, government affairs, and external stakeholders to deliver projects safely, compliantly, and on schedule.

Leads commercial origination for future fusion power plants, including customer development, power purchase agreements, tolling and capacity contracts, market entry, negotiations, and structured risk allocation. Builds relationships with utilities, hyperscalers, industrial off-takers, and government agencies; develops bankable revenue strategies; monitors wholesale power markets and regulations; and leads a high-performing origination team. Partners with finance, legal, engineering, and project development to secure long-term contracts and support deployment financing.

Coordinates warehouse and material-management activities, including shipping, receiving, inventory control, cycle counts, purchase-order verification, audits, damaged-part quarantine, safety compliance, and KPI reporting. The role operates material-handling equipment, supports internal customers, maintains warehouse organization, and ensures compliance with HAZMAT and safety requirements in an onsite, fast-paced fusion-energy environment.

Supports civil, structural, and architectural engineering and construction activities for complex industrial fusion facilities. Responsibilities include developing construction work packages, coordinating 3D model reviews, reviewing engineering documents, managing procurement and field interfaces, tracking construction progress, supporting quality and compliance, resolving field issues, and developing system turnover packages. The role also coordinates schedules, inspections, walkdowns, punch lists, RFIs, field changes, and records retention.

Leads 24x7 manufacturing execution for fusion magnet production, managing Production Directors and developing operational talent. Partners with Engineering, Supply Chain, Quality, and EHSS to commission and scale manufacturing initiatives within budget. Drives lean manufacturing, continuous improvement, root-cause analysis, quality assurance, safety, and operational performance while supporting teams through ambiguous, high-growth, first-of-a-kind production challenges.

Leads a portfolio of complex R&D projects involving high-temperature superconducting magnet systems, from concept through prototype development and production ramp-up. Manages scope, schedules, budgets, risks, staffing, technical tradeoffs, and cross-functional matrix teams. Serves as a liaison among executives, engineering teams, suppliers, and external stakeholders while driving project execution, operational scale-up, and risk mitigation.

Leads manufacturing engineering across multiple production sites, scaling HTS magnet component and assembly manufacturing from R&D through full production. Responsibilities include process development, automation, tooling, work instructions, capacity planning, factory expansion, Lean and quality system implementation, cross-functional execution, vendor management, and organizational leadership. The role manages managers and technical teams while driving manufacturing readiness, operational excellence, throughput, safety, and cost performance.

Designs and validates custom control boards, power supplies, sensing circuits, and RF electronics for SPARC’s high-power fusion systems. Responsibilities include circuit simulation, PCB design, technical specification development, prototype assembly, board bring-up, high-power RF transmitter operation, and hardware-software integration. The role collaborates with RF, software, mechanical, manufacturing, and external vendor teams in a hazardous, onsite facility environment.

Plans, writes, approves, and executes SPARC Assembly test campaigns, procedures, and instructions. Performs hazardous and high-voltage testing, risk analysis, troubleshooting, safety reviews, and lessons-learned activities. Ensures compliance with CFS, regulatory, and industry standards while supporting assembly operations, technician execution, and critical test activities onsite.

Coordinates assembly operations by purchasing production and clean room supplies, maintaining inventory, managing supplier orders, supporting onboarding, leading clean room training, and maintaining records. The role partners with Assembly, Purchasing, Quality, and HR to ensure materials, training, documentation, and compliance needs are met. It also provides administrative support, audit assistance, scheduling, and process improvement in a fast-paced manufacturing environment.

Leads global supplier integration and strategic sourcing for fusion powerplant development. Partners with engineering, R&D, finance, and leadership on value engineering, technology selection, cost reduction, supplier readiness, and techno-economic modeling. Develops commodity strategies, identifies and evaluates suppliers, negotiates long-term agreements, manages supplier performance and risk, and supports partnerships, diligence, and project planning. Requires extensive technical sourcing expertise, strong financial and communication skills, and comfort operating in uncertain, low-TRL environments.

Leads 8–15 process engineers developing and releasing work instructions for SPARC Tokamak assembly. Oversees engineering workflows, planning tools, mechanical assembly standards, design feedback, talent development, and resolution of technical issues. Requires collaboration with design and field assembly teams, occasional hands-on assembly support, vendor travel, and onsite work during assembly operations.

Leads and scales operational accounting functions, including accounts payable, payroll, expense reporting, state filing compliance, process improvement, SOP development, issue resolution, metrics monitoring, and team leadership. Partners cross-functionally with Supply Chain, FP&A, People Operations, IT, and procurement to improve controls, accountability, accuracy, and processing efficiency.

Develop and implement systems engineering processes for mechanical subsystems supporting SPARC and ARC fusion tokamaks. Responsibilities include requirements development and traceability, architecture and interface definition, trade studies, risk assessment, technical baseline management, design reviews, verification and validation planning, testing, and commissioning. The role requires cross-disciplinary collaboration across mechanical, electrical, instrumentation, controls, and industrial engineering stakeholders, with occasional travel and off-hours support for testing.

Lead commercial and corporate legal activities, including complex contracts, strategic partnerships, joint ventures, licensing, technology transfers, supply chain agreements, and corporate transactions. Build scalable legal workflows, templates, negotiation playbooks, and contract management systems. Advise executives and cross-functional teams on risk, procurement, corporate matters, and strategic initiatives, while developing and eventually leading a commercial and corporate legal team.

Supports day-to-day internal communications during a six-month contract. Responsibilities include drafting and publishing employee messages, managing communication requests and editorial calendars, refining presentation decks, coordinating all-hands meetings and on-site events, administering recognition programs, and executing targeted internal campaigns. The role requires strong writing, editing, presentation formatting, cross-functional coordination, and in-person support at the Devens campus.

Own process engineering for complex industrial systems from concept through design, construction, commissioning, startup, and operation. Develop process design bases, balances, PFDs, P&IDs, equipment specifications, simulations, and control strategies. Lead process safety studies, equipment sizing, vendor evaluations, field engineering, troubleshooting, and performance testing. Work across cryogenic, power generation, steam, molten salt, vacuum, fueling, gas processing, and utility systems while mentoring engineers and supporting commercially viable fusion power plant development.

Own dimensional management for HTS Magnet production and the SPARC fusion project. Establish GD&T and datum strategies, perform 1D and 3D tolerance analyses, define inspection and acceptance requirements, flow down key characteristics, assess dimensional nonconformances, review engineering changes, and coach engineering and quality teams. The role requires extensive complex-hardware experience and collaboration with metrology, manufacturing, quality, suppliers, and design teams.