Jobs at Commonwealth Fusion Systems

Coordinates the talent acquisition process by scheduling interviews, arranging candidate travel, hosting onsite interviewees, supporting sourcing, facilitating intake and debrief meetings, and maintaining Lever ATS data and reporting. The role is fully onsite in Milpitas and requires strong organization, communication, customer service, multitasking, and safety awareness in an industrial environment.

Provides on-site HR business partnering for manufacturing, engineering, and operational teams. Supports employee relations, manager coaching, investigations, workforce planning, onboarding, leaves, accommodations, performance management, engagement, compensation cycles, organizational changes, and employee lifecycle processes. Partners with senior HR business partners and leaders while maintaining accurate documentation, confidentiality, and equitable support across shifts in a fast-paced 24/7 environment.

Leads direct procurement, supply planning, supplier quality, strategic sourcing, supplier development, and supply chain project management across fusion-energy projects. Manages and develops the supply chain organization, owns executive supplier relationships, ensures cost, quality, and delivery performance, resolves escalated issues, improves sourcing and purchasing processes, reports project risks, and leads business transformation initiatives.

Partners with R&D and technology teams to build budgets, forecasts, cash-flow models, and project-level financial plans. Tracks spending against milestones, investigates variances, advises leaders on resource allocation and investment risks, manages vendor commitments and payment status, maintains financial master data, and identifies risks and opportunities amid evolving technical inputs.

Provides administrative and office operations support to leaders and business teams. Responsibilities include scheduling meetings and travel, managing conference rooms, coordinating catering and vendors, staffing the front desk, greeting visitors, answering operational questions, facilitating communication, and supporting special projects. The role requires strong organization, discretion, communication, customer service, attention to detail, and comfort working in an onsite technical and industrial environment.

Supports manufacturing production by improving equipment efficiency, reducing downtime and defects, troubleshooting electromechanical systems, and resolving production blockers. Designs, builds, and commissions tooling and equipment; develops prototypes using CAD and 3D printing; writes work instructions; tracks performance metrics; and performs root-cause analysis. The role also supports robot adjustments, manufacturing process qualification, and prototype hardware builds while collaborating with manufacturing engineers, equipment engineers, and technicians.

Supports manufacturing and equipment engineering teams by improving production processes, reducing downtime and defects, troubleshooting electromechanical equipment, and resolving production blockers. Designs, builds, and commissions tooling and equipment, performs prototype hardware builds, updates work instructions, adjusts robot paths, tracks performance metrics, and conducts root-cause analysis. The role requires hands-on manufacturing experience, technical troubleshooting, CAD exposure, safety awareness, and occasional travel or off-hours support.

Leads finance support for manufacturing, operations, and supply chain across multiple sites. Responsibilities include long-range planning, budgeting, cash flow, KPI reporting, cost management, inventory and procurement analysis, make-versus-buy decisions, capital allocation, ROI and NPV business cases, standard costing, variance analysis, COGS improvement, and ERP or planning-tool implementation. The role manages finance business partners and advises operations leadership in a fast-growing, matrixed manufacturing organization.

Leads investor relations and equity capital formation for a fusion energy company. Owns financing processes, investor targeting, materials, diligence, shareholder communications, disclosure discipline, capital-market intelligence, and the investor narrative. Partners with the CFO, CEO, Board, Corporate Development, Legal, and Communications; builds the investor relations infrastructure, hires a small team, selects advisors, and supports financing strategy across private, strategic, sovereign, infrastructure, and eventual public-market capital.

Owns preparation, execution, and closure of SPARC Assembly testing. Reviews procedures, identifies hazards, supports equipment and mock-up testing, directs field troubleshooting, validates results, approves test reports, reinforces safety and procedural standards, and captures lessons learned. The role requires extensive onsite work, occasional alternate shifts, and work around industrial hazards including high voltage, cryogenics, pressure systems, strong magnets, and fumes.

The Senior Manager will lead Accounting Operations, overseeing accounts payable, payroll, and compliance while improving processes and managing staff development.

Support commissioning and operation of a large-scale helium cryogenic plant. Responsibilities include thermal-fluid process design, process safety and controls, schematics and equipment lists, troubleshooting, operating procedures, hardware and skid design, procurement, testing, inspections, and contractor coordination. The role requires hands-on experience with compressible fluids, cryogenic systems, rotating machinery, pressure equipment, controls, and applicable engineering standards, with occasional shift work, travel, and on-call duties.

Design, implement, and verify embedded control software for advanced R&D equipment and complex machinery. Develop production-quality real-time software across Linux, microcontrollers, and FPGAs; integrate software with hardware and software testbeds; support field commissioning; and improve company-wide development tooling and processes. The role requires collaboration with cross-functional engineers, safety awareness in industrial environments, and occasional travel, nights, weekends, or on-call work.

Architect and integrate high-power RF systems for the SPARC fusion tokamak, including solid-state amplifiers, power supplies, instrumentation, controls, transmission lines, and impedance matching networks. The role involves RF simulation, system commissioning, complex troubleshooting, EMI/EMC mitigation, cross-disciplinary integration, and technical mentorship. Work includes exposure to industrial hazards and occasional travel, nights, weekends, or on-call duties.

As a Senior Controls Engineer, you'll lead equipment conceptual development, provide technical leadership, create system architectures, and mentor junior engineers while ensuring compliance with safety standards.

Serve as primary systems engineer for critical utility subsystems in R&D: integrate mechanical, electrical, and software components; lead hands-on troubleshooting/commissioning; author specifications and requirements; manage schedules and budgets; standardize workflows and SOPs; drive cross-functional alignment among ME, EE, and SW teams.

Develop distributed backend systems, APIs, and services for data acquisition, access, and processing. Write maintainable Golang services and a Python client library, optimize ingestion and retrieval performance, and collaborate with physicists and engineers to translate requirements into software. The role supports simulation and experimental data analysis in a fusion-energy environment and may involve safety-sensitive work, occasional travel, nights, weekends, or on-call coverage.

Design and implement mission-critical state estimation and control algorithms, simulation models, and software infrastructure for real-time and offline testbeds. Develop production-quality software, offline data analysis tools, and integrated test plans for SPARC control software. Collaborate with engineering teams to integrate software into hardware and software testbeds, while improving company-wide tooling and development processes.

Lead finance systems, master data governance, and planning application initiatives. Own ERP and planning tool administration, integrations, data quality, and reporting. Drive ERP/EPM implementations, process improvements, testing, training, and cross-functional change management to scale finance operations.

Administer and maintain the Genetec Security Center (Omnicast VMS and Synergis ACS), IP cameras, access control hardware, and related physical security systems. Lead installations and upgrades, manage vendors, perform audits, troubleshoot faults, maintain documentation, and participate in on-call rotations to ensure system reliability and compliance.