Commonwealth Fusion Systems is designing and building commercially viable fusion power plants, having raised over $2 billion in capital since 2018.

Commonwealth Fusion Systems is at the forefront of fusion energy innovation, working to deliver a sustainable energy future. As a Senior Manufacturing Engineer - NPI, you'll play a vital role in transitioning new products from development to full-scale production. The position offers an opportunity to work with cutting-edge fusion technology while collaborating with cross-functional teams in product design, quality assurance, and supply chain.

The role demands expertise in manufacturing processes, lean methodologies, and hands-on problem-solving. You'll be responsible for developing and implementing manufacturing processes, optimizing production layouts, and ensuring quality standards are met. The position offers competitive compensation ($80,000-$180,000) plus equity and comprehensive benefits.

The ideal candidate brings 5+ years of manufacturing engineering experience, strong analytical skills, and the ability to thrive in a fast-paced environment. Experience with magnets, thermo-mechanical assemblies, and CAD software is valued. The company culture emphasizes integrity, execution, and impact, making this an excellent opportunity for those passionate about advancing fusion energy technology.

Working at Commonwealth Fusion Systems means joining a well-funded company ($2B+ raised) that values diversity and offers significant growth potential. The position is based in Devens, MA, requiring on-site presence and occasional travel. Benefits include comprehensive healthcare, 401(k) matching, generous leave policies, and professional development opportunities.

Senior Manufacturing Engineer position at Commonwealth Fusion Systems, focusing on transitioning new products from R&D to manufacturing, offering competitive salary and benefits.

Senior Manufacturing Engineer - NPI

Commonwealth Fusion Systems is developing commercially viable fusion power plants, having raised over $2 billion in capital since 2018.

Commonwealth Fusion Systems is at the forefront of fusion energy development, working to revolutionize the energy industry. As a Senior Environmental, Health & Safety Engineer at our Devens, Massachusetts campus, you'll play a crucial role in maintaining and improving our safety standards. The position offers a competitive salary range of $80,000 - $180,000 plus equity and comprehensive benefits.

You'll lead incident investigations, work with EHS Management System software, and support both production and R&D teams in hazard identification. The role requires expertise in OSHA standards, safety protocols, and risk assessment, making it perfect for someone with a strong technical background and 5+ years of experience in high-risk industries.

We're backed by over $2 billion in capital raised since 2018, making us the best-funded fusion energy company in the U.S. Our team values integrity, execution, impact, and self-critique, and we're looking for individuals who can bring fresh perspectives to tough challenges.

The position offers comprehensive benefits including equity, health insurance, 401(k) matching, generous parental leave, and professional growth opportunities. We're committed to diversity and equal opportunity employment, welcoming qualified applicants from all backgrounds.

Join us in our mission to deliver the urgent transition to fusion energy, working with cutting-edge technology and contributing to the future of sustainable power generation.

Senior EHS Engineer role at Commonwealth Fusion Systems, leading safety initiatives and hazard management in fusion energy development.

Senior Environmental, Health & Safety Engineer

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, working to create the world's first commercial fusion power plant called ARC. As a Senior Mechanical Engineer in Remote Maintenance, you'll be integral to designing and implementing the critical Remote Maintenance System for ARC. The role combines expertise in robotics, remote handling equipment (RHE), and tokamak design to ensure the plant's efficient operation and maintenance.

The position offers a unique opportunity to work on groundbreaking technology in the clean energy sector, with CFS having secured over $2 billion in funding since 2018. You'll be part of a dynamic team solving complex multi-disciplinary problems involving physics, neutronics, thermo-fluids, and structures. The role requires innovative thinking to develop novel solutions for remote maintenance in a radiation environment.

The ideal candidate will bring strong mechanical engineering expertise, particularly in remote handling equipment and robotics. You'll collaborate across teams, manage complex projects, and help shape the future of fusion energy. The position offers competitive compensation ($80,000-$180,000), equity, comprehensive benefits, and the chance to contribute to a technology that could revolutionize clean energy production.

Working in a hybrid environment in Devens, MA, you'll be part of a company culture that values integrity, execution, impact, and self-critique. CFS offers professional growth opportunities, work-life balance with flexible vacation days, and comprehensive benefits including health insurance and 401(k) matching. This is an exceptional opportunity for an experienced engineer to make a significant impact in the development of sustainable energy solutions.

Senior Mechanical Engineer position at Commonwealth Fusion Systems, focusing on remote maintenance system design for fusion power plants, offering competitive salary and benefits.

Senior Mechanical Engineer - Remote Maintenance

Commonwealth Fusion Systems is at the forefront of fusion energy development, working to revolutionize the energy industry through commercially viable fusion power plants. As an Algorithms and Simulation Software Engineer, you'll join the SPARC Software team's Realtime Algorithms & Simulation group, working on critical systems that control the SPARC tokamak and plant. The role involves developing safety-critical control software that manages thousands of physical measurements and controls millions of amps of power, working with real-time Linux, microcontrollers, FPGAs, and industrial PLCs.

The position offers an exciting opportunity to work on cutting-edge fusion technology, developing both hardware-in-the-loop and software testbeds, creating simulation models, and ensuring the safety and reliability of complex control systems. You'll collaborate with fusion scientists and hardware engineers to develop real-time plasma control algorithms and validation infrastructure.

The company has raised over $2 billion in capital since 2018, demonstrating strong financial backing and commitment to their mission. They offer competitive compensation including equity, comprehensive benefits, and a culture focused on integrity, execution, impact, and self-critique. This is an ideal role for someone passionate about clean energy, complex engineering challenges, and working in a fast-paced, mission-driven environment.

The position requires strong technical skills in embedded systems, real-time software development, and simulation, combined with the ability to work collaboratively across teams. The company values diversity and maintains an inclusive work environment, making it an excellent opportunity for engineers looking to make a significant impact in the future of energy technology.

Join Commonwealth Fusion Systems as an Algorithms and Simulation Software Engineer, developing safety-critical control systems for fusion power plants with competitive compensation and benefits.

Algorithms and Simulation Software Engineer

Commonwealth Fusion Systems is at the forefront of fusion energy development, working to revolutionize the energy industry. As an Electronics Engineer, you'll be integral to designing and implementing power electronics for the SPARC fusion plant. The role combines hands-on technical work with collaborative problem-solving, offering the opportunity to work on cutting-edge fusion technology.

The position involves designing high-power converter electronics, managing supplier relationships, and overseeing implementation from concept to commissioning. You'll work with state-of-the-art technology in a fast-paced environment, contributing to the development of commercially viable fusion power plants.

The company has secured over $2 billion in funding since 2018, demonstrating strong financial backing and commitment to their mission. They offer competitive compensation ($80,000-$180,000) plus equity, comprehensive benefits, and the chance to work with top talent in the field.

This is an excellent opportunity for an electronics engineer passionate about clean energy and interested in working on revolutionary technology. The hybrid work environment and strong focus on professional growth make this an attractive position for someone looking to make a significant impact in the energy sector.

Electronics Engineer position at Commonwealth Fusion Systems, designing and implementing power electronics for fusion energy technology with competitive compensation and benefits.

Electronics Engineer

Commonwealth Fusion Systems is at the forefront of fusion energy development, working to revolutionize the energy industry through commercially viable fusion power plants. As a Senior Process Engineer for Vacuum Systems, you'll play a crucial role in developing, installing, and commissioning high and ultra-high vacuum systems for the SPARC program. This position combines hands-on technical expertise with leadership responsibilities, requiring deep involvement in system installation and team coordination. The role presents unique challenges, including managing tritium fusion fuel containment systems and collaborating across multidisciplinary teams. With over $2 billion in capital raised since 2018, CFS offers a dynamic environment where you'll contribute to groundbreaking energy solutions. The position offers competitive compensation ($80,000-$180,000), comprehensive benefits, and the opportunity to work with cutting-edge technology in fusion energy. The ideal candidate will bring 10+ years of relevant experience and thrive in a fast-paced, mission-driven environment focused on delivering the urgent transition to fusion energy.

Senior Process Engineer position at Commonwealth Fusion Systems, focusing on vacuum systems development for fusion energy technology with competitive compensation and benefits.

Senior Process Engineer - Vacuum Systems

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, working to revolutionize the energy industry through commercially viable fusion power plants. Since 2018, they've secured over $2 billion in funding, making them the most well-funded fusion energy company in the US.

As a Principal Controls Software Engineer at CFS, you'll play a crucial role in developing and implementing control systems for complex fusion power equipment. The position combines expertise in controls engineering, software development, and industrial automation, requiring both technical depth and systems-thinking capabilities.

The role offers an exciting opportunity to work on cutting-edge fusion energy technology, where you'll collaborate with R&D teams and engineering peers to develop machine and operational concepts. You'll be responsible for creating robust system architectures that integrate PLCs, safety devices, HMIs, and servo drives, while ensuring compliance with industry standards and safety regulations.

Key aspects of the role include developing control software, implementing safety systems, designing electrical schematics, and optimizing automated operations. You'll work with modern tools and technologies, including GitHub, CI/CD pipelines, and industrial control platforms like Beckhoff and Siemens.

This position is ideal for an experienced controls engineer who is passionate about clean energy and wants to make a significant impact in the fusion energy field. The role offers competitive compensation ($150,000-$250,000), equity, comprehensive benefits, and the opportunity to work with a talented team dedicated to solving one of the world's most pressing energy challenges.

The position is based in the San Francisco Bay Area and requires occasional travel and flexible working hours. You'll be joining a company that values diversity, fosters professional growth, and maintains a fast-paced, mission-driven culture focused on integrity, execution, impact, and self-critique.

Principal Controls Software Engineer position at Commonwealth Fusion Systems, developing control systems for fusion power plants.

Principal Controls Software Engineer

Commonwealth Fusion Systems, a pioneering company in fusion energy technology, is seeking a Service Desk Engineer to join their dynamic team. With over $2 billion in capital raised since 2018, CFS is at the forefront of developing commercially viable fusion power plants.

The role combines traditional service desk responsibilities with opportunities for growth into systems administration and engineering projects. As a Service Desk Engineer, you'll be the first point of contact for IT issues while collaborating with the infrastructure team on foundational projects. This position is perfect for someone who excels in problem-solving and has a passion for automation.

Your responsibilities will span from providing top-tier technical support to implementing enterprise-wide solutions. You'll manage end-user devices, work on cybersecurity initiatives, and contribute to the company's technical infrastructure. The role offers a unique blend of hands-on support and strategic project work, with opportunities to automate processes and improve efficiency.

The ideal candidate brings experience in desktop support, enterprise systems (G Suite, Freshservice, Okta), and multiple operating systems (Windows, Mac, Linux). Knowledge of Active Directory/Azure AD and experience with JAMF, MECM/SCCM, or Intune is crucial. The position offers competitive compensation ($80,000-$180,000), equity, comprehensive benefits, and the opportunity to work in a hybrid environment.

Join a company that values diversity, fosters professional growth, and offers the chance to contribute to groundbreaking energy technology. This role provides an excellent opportunity to develop your IT career while working on meaningful projects that impact the future of energy production.

Service Desk Engineer position at Commonwealth Fusion Systems, providing IT support and implementing enterprise solutions in a hybrid work environment.

Service Desk Engineer

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, working to create commercially viable fusion power plants. With over $2 billion in funding since 2018, CFS is constructing the SPARC fusion machine while simultaneously developing their first electrical power-producing fusion device, ARC.

The Senior Process Engineer role focuses on managing fueling systems for both SPARC and ARC projects. The position involves hands-on work with gas handling, processing, and vacuum systems, requiring expertise in high radiation environments and high-temperature heat transfer systems. The role is highly cross-functional, involving collaboration with R&D, construction, and operations teams.

The ideal candidate will have 7+ years of experience in designing fluidic and gas handling systems, with strong knowledge of industry standards and safety protocols. They will work on critical aspects of the SPARC fuel system, from construction management to commissioning and performance verification. For the ARC project, they will handle plant-wide thermal and process gas loads, designing various subsystems for the 400 MWe output facility.

This is an exciting opportunity to join a well-funded company that's leading the transition to fusion energy. The role offers competitive compensation ($80,000-$180,000), comprehensive benefits including equity, and the chance to work on groundbreaking technology that could revolutionize the energy sector. The position requires occasional travel, ability to work in industrial environments, and strong problem-solving skills.

Senior Process Engineer position at Commonwealth Fusion Systems, focusing on fueling systems design and management for fusion power plants.

Senior Process Engineer, Fueling Systems

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, working to deliver commercially viable fusion power plants. The company is currently constructing the SPARC fusion machine while advancing the design of ARC, their first electrical power-producing fusion device. As a Senior Mechanical Engineer for Fueling Systems, you'll be integral to the development of electro-mechanical gas injection systems for the SPARC project. The role combines hands-on engineering with system design, vendor management, and cross-functional collaboration.

The position offers an opportunity to work on cutting-edge fusion technology with a well-funded company that has raised over $2 billion since 2018. You'll be part of a dynamic team working on complex challenges involving ultra-high vacuum systems, hydrogen gas applications, and challenging structural and magnetic loads in radiation environments. The role requires expertise in mechanical engineering, particularly in designing and validating electro-mechanical equipment.

The ideal candidate will bring strong technical skills in CAD, mechanical analysis, and system design, combined with excellent project management and communication abilities. The position offers competitive compensation ($80,000-$180,000), comprehensive benefits including equity, and the chance to contribute to groundbreaking clean energy technology. CFS values diversity and maintains an inclusive work environment, making it an excellent opportunity for those passionate about solving complex engineering challenges while contributing to sustainable energy solutions.

Senior Mechanical Engineer role at Commonwealth Fusion Systems, focusing on fueling systems design and implementation for fusion power technology.

Senior Mechanical Engineer, Fueling Systems

Commonwealth Fusion Systems develops commercially viable fusion power plants, combining research, talent, and new technologies for the future of energy.

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, having raised over $2 billion in capital since 2018. The company is seeking a Scientific Software Engineer to join their mission of delivering the urgent transition to fusion energy. This role focuses on developing internal simulation tools for superconducting magnets, a crucial component of CFS's commercial fusion technology.

The position involves working with interdisciplinary teams to create computational tools that aid in the design, construction, and testing of HTS magnets. You'll be developing software that implements finite difference, finite element, and boundary element methods to predict magnet component behavior, optimize designs, and perform data analysis.

As a Scientific Software Engineer, you'll collaborate with diverse teams spanning electromagnetics, engineering, and materials science. The role requires expertise in Python programming, strong mathematical foundations, and experience with high-consequence software development. You'll be responsible for implementing robust CI/CD processes and creating user-friendly interfaces for scientists and engineers.

The company offers a competitive compensation package including equity, comprehensive health benefits, and professional growth opportunities. CFS values diversity and maintains an inclusive work environment, considering all qualified applicants equally regardless of background. This is an excellent opportunity for someone passionate about contributing to groundbreaking energy technology while working with cutting-edge software development practices.

Senior Scientific Software Engineer position at Commonwealth Fusion Systems, developing simulation tools for fusion energy technology with Python expertise required.

Commonwealth Fusion Systems Engineering Jobs

Commonwealth Fusion Systems is designing and building commercially viable fusion power plants, having raised over $2 billion in capital since 2018.