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Jobs in United States
118 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
101–118 of 118 jobs
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Commonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeLead / staff$172K – $260K a yearScience & researchSimulate the SPARC ICRH antennas and RF network system to inform commissioning and operation; Contribute to testing of ICRH/ICDC components; Inform the implementation of the RF control system and operator interfaces; Contribute to the development of commissioning and operation…
Senior Mechanical Engineer – Cable Magnets
2 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
HybridFull-timeSenior$134K – $205K a yearEngineeringAct autonomously as the primary owner of cable magnet hardware for SPARC, ARC, or other projects, ensuring designs are completed, validated, procured, built, and installed correctly and on time; Produce new and iterate on existing design concepts, using a deep understanding of…
Senior Mechanical Engineer - Assembly Equipment
2 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$134K – $205K a yearEngineeringOwnership, design, and complete engineering development of the tooling, lifting, manipulation, and support frames for successful movement, handling, guidance, and integration of SPARC system components.; Formulate the general strategy for each assembly step utilizing these…
NDT Manager – Responsible Level III
2 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$141K – $215K a yearOperationsDevelop and maintain organizational NDT capabilities, identifying gaps in technology or competency and implementing solutions that scale from SPARC manufacturing and assembly into the future ARC fleet; Partner with corporate EHS Radiation Safety to ensure safe and compliant…
Staff Modeling and Simulation Engineer
3 months agoCommonwealth Fusion Systems · Milpitas, California, United States
On-siteFull-timeLead / staff$166K – $240K a yearEngineeringExecute Simulation and Modeling: Lead advanced Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) for advanced processing equipment; Run Multi-Physics Analysis: Build, run, and evaluate highly coupled simulations covering structural mechanics, high-temperature…
Principal RF Systems Engineer
3 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeLead / staff$172K – $260K a yearEngineeringShape System Architecture: Play a critical role in the end-to-end design and integration strategy for RF plants for tokamaks, collaborating with other senior engineers to ensure seamless interaction between RF sources, matching networks, and the dynamic plasma load; Guide…
Control Software Engineer
3 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
HybridFull-timeSenior$107K – $160K a yearEngineeringDevelop control software across multiple platforms, including PLCs and real-time Linux; Develop operator interfaces and workflows; Improve software tooling to increase developer velocity and enable new capabilities
Staff Multiphysics Modeler
3 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeLead / staff$152K – $230K a yearEngineeringLead the development of an integrated power plant fuel cycle model; Develop models for unit operations and incorporate multi-effects in components; Develop simulation tools to enable targeted R&D for key fuel cycle technologies; Own the fuel cycle simulation tools and models;…
Manufacturing Engineer - Second Shift
4 months agoCommonwealth Fusion Systems · Somerville, Massachusetts, United States
On-siteFull-timeSenior$107K – $160K a yearEngineeringAnalyze and improve manufacturing processes to reduce costs, increase efficiency, and ensure product quality; Develop and maintain process documentation including work instructions, standard operating procedures (SOPs), and process flow diagrams; Collaborate with product design…
Lead Piping Engineer
4 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
RemoteFull-timeLead / staff$152K – $230K a yearEngineeringEstablish and document pipe stress methodologies, standards, and best practices; Perform pipe stress analyses using industry-standard pipe stress software (e.g., AutoPIPE); Evaluate piping systems for sustained, thermal expansion, occasional, seismic, wind, and dynamic loading…
Senior R&D Electromagnetic Analysis Engineer
4 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$134K – $205K a yearEngineeringPerform electromagnetic analysis of superconducting magnets and inform design decisions; Work with experimental teams on instrumentation, measurement, and correlation of experiment to analysis; Develop new numerical tools, as needed, to facilitate multi-objective design…
R&D Test Engineer - Fluid Systems
4 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$107K – $160K a yearEngineeringDesign fluid systems for test stands that meet test objectives/requirements, soliciting feedback from interfacing teams as necessary; Challenge requirements as necessary to achieve simplicity in design and develop efficient de-risking strategies and plans; Perform hand…
Senior Metrology Engineer
4 months agoCommonwealth Fusion Systems · Milpitas, California, United States
On-siteFull-timeSenior$146K – $210K a yearEngineeringSelect, develop and maintain measurement systems and metrology tools; Create SOPs and workflows for sample measurement and provide training (both written and verbal) for staff; Develop and use data management systems including laboratory information management systems and…
Lead Assembly Technician
4 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeLead / staff$32.00 – $52.00 an hourTrades & logisticsDay-to-day activity management and coordination of the technician teams to complete the assembly operations, per the overall schedule; Work order review, including mechanical, welding, electrical, and lifting tasks; Participation in major on-site operations, such as important…
Field Mechanical Engineer - Assembly
5 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$107K – $160K a yearEngineeringCo-own and be the expert in the assembly sequence of your workstation (initially this role is scoped to the assembly of the Toroidal Field Coil (TF) semicircle sub-assemblies), with the responsibility to determine and enact acceptable solutions and changes to the sequence that…
Commonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$134K – $205K a yearEngineeringMake real-time decisions within established guardrails; escalate when conditions fall outside defined limits; Analyze and improve manufacturing processes to reduce costs, increase efficiency, and ensure product quality; Develop and maintain process documentation including work…
Commonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$134K – $205K a yearEngineeringMake real-time decisions within established guardrails; escalate when conditions fall outside defined limits; Analyze and improve manufacturing processes to reduce costs, increase efficiency, and ensure product quality; Develop and maintain process documentation including work…
Senior Field Mechanical Engineer - Assembly
6 months agoCommonwealth Fusion Systems · Devens, Massachusetts, United States
On-siteFull-timeSenior$134K – $205K a yearEngineeringOwn and be the expert in the assembly sequence of your workstation (initially this role is scoped to the assembly of the Toroidal Field Coil (TF) semicircle sub-assemblies), with the responsibility to determine and enact acceptable solutions and changes to the sequence that…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.