Find Commonwealth Fusion Systems Senior Software Engineer software engineering jobs

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 deliver a sustainable energy future. As a Senior Mechanical Engineer for the SPARC superconducting magnets feeder team (FEED), you'll play a crucial role in developing and implementing cutting-edge technology. The position involves owning hardware from concept to delivery, performing complex analyses, and working with various teams to ensure successful implementation.

The role combines hands-on engineering with strategic thinking, requiring expertise in thermal, structural, and electromagnetic analysis. You'll be responsible for developing design notes, technical specifications, and assembly procedures while supporting procurement efforts. This position offers the opportunity to work on groundbreaking technology that could revolutionize energy production.

The ideal candidate brings substantial engineering experience, particularly in designing and supporting production hardware. You'll need strong analytical skills, practical experience with high-power mechanical systems, and the ability to work independently while collaborating with cross-functional teams. The position offers the chance to work with cutting-edge technology in fusion energy, contributing to a mission-driven company that values diversity and innovation.

Working at Commonwealth Fusion Systems means joining a team that has raised over $2 billion in capital and is leading the charge in fusion energy development. The company offers a fast-paced, values-driven environment where integrity, execution, impact, and self-critique are paramount. This role provides an opportunity to be part of a transformative technology that could reshape the future of energy production.

Senior Mechanical Engineer position at Commonwealth Fusion Systems, focusing on HTS Magnet Feeder System development for fusion energy technology.

Senior Mechanical Engineer - HTS Magnet Feeder System

Commonwealth Fusion Systems 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 U.S. They're seeking a R&D Test Engineer to join their mission-critical team, focusing on testing and risk mitigation for HTS magnets.

The role demands a unique blend of mechanical, electrical, materials, fluids, and software engineering expertise. You'll be responsible for designing, building, and commissioning test equipment while working collaboratively across multiple teams. The position emphasizes mechanical design and construction of test equipment, requiring hands-on experience with cryogenic, vacuum, and high-current conditions.

As a Test Engineer, you'll develop comprehensive test plans, operate sophisticated equipment, and maintain crucial documentation. The role involves significant responsibility in safety management, anomaly investigation, and system scalability planning. You'll work with cutting-edge technology in fusion energy, contributing to groundbreaking developments in sustainable power generation.

The ideal candidate brings 5+ years of relevant experience, strong problem-solving abilities, and excellent communication skills. This role offers the opportunity to work with world-class scientists and engineers, making a direct impact on the future of clean energy. The position requires occasional travel and flexibility with working hours, reflecting the dynamic nature of breakthrough technology development.

Senior R&D Test Engineer position at Commonwealth Fusion Systems, focusing on HTS magnet testing and development for fusion energy technology.

R&D Test Engineer - Operations

Commonwealth Fusion Systems develops commercially viable fusion power plants, combining research, talent, and new technologies to enable the transition to fusion energy.

Commonwealth Fusion Systems (CFS) is at the forefront of developing commercially viable fusion power plants, having raised over $2 billion in capital since 2018. They're seeking a Senior Scientific Software Engineer to join their Scientific Software team, focusing on developing software for superconducting magnets and tokamaks.

The role primarily involves developing a fiber optic quench detection system - a critical safety component that detects thermal runaway events in superconducting magnets. You'll work with Python-based fiber models to simulate quench signals and develop detection algorithms. The position combines sophisticated physics-based modeling with practical software engineering challenges.

As a Senior Scientific Software Engineer, you'll be responsible for analyzing experimental data, validating models, and developing real-time detection algorithms. The role requires a unique blend of software engineering expertise and physics understanding, particularly in electromagnetics and optics.

The ideal candidate should be proficient in Python, with experience in scientific computing libraries like pandas, numpy, and matplotlib. You'll need to understand numerical methods, linear algebra, and differential equations, while being capable of setting up comprehensive software development environments including CI/CD pipelines.

CFS offers a fast-paced, mission-driven environment focused on making fusion energy a reality. They value diversity and maintain an inclusive workplace culture, considering all qualified applicants equally regardless of background. This role provides an opportunity to work at the intersection of cutting-edge physics and software engineering, contributing to the future of clean energy.

Senior Scientific Software Engineer role at Commonwealth Fusion Systems, developing quench detection systems for fusion power plants using Python and physics-based modeling.

Senior Scientific Software Engineer – Magnet Protection Systems

Commonwealth Fusion Systems (CFS) is at the forefront of the urgent transition to fusion energy, combining decades of research with cutting-edge technologies to develop commercially viable fusion power plants. Since 2018, CFS has secured over $2 billion in funding, making it the most well-funded fusion energy company in the U.S. 

The Senior Electrical Engineer - Battery Storage Systems role is a crucial position within the SPARC team, reporting to the Director of Power Systems. This role demands a skilled professional to lead complex electrical design projects for battery storage systems essential to fusion power generation. The position involves comprehensive responsibility for all stages of battery storage system development, from prototyping to final commissioning.

The ideal candidate will bring 8+ years of experience in battery or photovoltaic storage systems, demonstrating expertise in system design, integration, and field implementation. They will lead technical teams, collaborate with vendors, and ensure high-quality deliverables that meet specifications and timelines. The role offers an opportunity to work on groundbreaking technology while contributing to the future of clean energy.

Working at CFS means joining a mission-driven organization that values integrity, execution, impact, and self-critique. The company embraces diversity and maintains an inclusive work environment, considering all qualified applicants equally regardless of background. This position offers the chance to be part of a revolutionary advancement in energy technology while working with top talent in the field.

Senior Electrical Engineer position focusing on battery storage systems for fusion power technology at Commonwealth Fusion Systems.

Senior Electrical Engineer - Battery Storage Systems

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent and new technologies, we're designing and building commercially viable fusion power plants.

Commonwealth Fusion Systems (CFS) is seeking a Senior Mechanical Engineer for their Assembly Team to work on the SPARC tokamak device. This role involves designing, developing, and managing the fabrication of unique tooling for the assembly and integration of the tokamak. You'll be responsible for developing overall concepts, engineering strategies, and use plans for each tool assembly, working closely with system teams to find efficient, creative, and safe ways to manipulate and integrate tokamak components.

Key responsibilities include:
- Ownership and design of tooling, lifting, manipulation, and support frames for SPARC system components
- Formulating assembly strategies and coordinating with system teams
- Analyzing tool structures and kinematics for safety and adequacy
- Developing alignment plans for precision placement of magnets and vessels
- Overseeing tool fabrication at outside vendors
- Creating assembly work instruction packets
- Collaborating with other engineers, designers, and assembly personnel

The ideal candidate will have:
- B.S. in Civil, Structural, Mechanical, or Aerospace Engineering
- 3-5 years of Mechanical Engineering experience
- Experience in fabrication and integration of complex, large mechanical structures
- Familiarity with standard actuation and guidance mechanisms
- Experience with finite element analysis and lifting operations (>10 Tons)

CFS offers a fast-paced, dynamic environment driven by values of integrity, execution, impact, and self-critique. They value diversity and are an equal opportunity employer, considering all qualified applicants regardless of background.

Join CFS in their mission to revolutionize the energy industry through fusion power!

Senior Mechanical Engineer for Assembly at Commonwealth Fusion Systems, designing and managing tooling for SPARC tokamak device assembly.

Senior Mechanical Engineer - Assembly

As the Senior Field Mechanical Engineer on the Assembly Team at CFS, you will be responsible for the management, engineering oversight, and problem-solving of the most complex and unique work-stations of the SPARC assembly process. You will be the central owner and know your part of the assembly process through-and-through, and you help guide the technicians through any issues that arise along the way, coming up with solutions that continue work and assembly moving forward. You will proactively ensure that they have all the tools required for the work, either procuring them off-the-shelf or quickly designing and building small tools and fixtures for use. This also includes the close collaboration with adjacent teams on the Assembly Team, such as creating and incorporating the new process changes with the Assembly Process team, or providing the Metrology team with any assistance or tools needed for the precision alignment of coils and other key structures. This role is on-site at Devens, MA but is a "field" role in the sense that you will be working day-to-day in the central construction hall in the CFS-2 facility where we are building the SPARC Tokamak. At the core, your role is to keep the assembly process moving smoothly in any and all ways, managing the day-to-day changes in strategy or work orders, problem-solving and making tools, and using your engineering skills and knowledge to solve the many complex challenges that arise during the assembly process. You will guide and manage how the giant parts of this multi-million pound "Swiss-watch" come together!

Key Responsibilities:
- Own and be an expert in the assembly sequence of your work-station
- Ensure full readiness of a work-station to enable the start of assembly
- Determine and execute solutions for identified assembly issues
- Procure or build all necessary tools, fixtures, or manipulation equipment
- Serve as the extreme owner for a process by testing, implementing, and handing off to production technicians
- Provide design feedback to SPARC sub-system designs
- Assist in the disposition and resolution of non-conformance issues
- Support hands-on operations during Tokamak Assembly
- Work collaboratively with teammates to ensure all requirements are met

Join Commonwealth Fusion Systems in their mission to deliver the urgent transition to fusion energy. Since 2018, they've raised over $2 billion in capital – more than any other fusion energy company in the U.S. They're looking for thinkers, doers, builders, and makers to join their team and bring new perspectives, solve tough problems, and thrive as part of a team.

Senior Field Mechanical Engineer for Assembly at Commonwealth Fusion Systems, leading complex SPARC Tokamak assembly process in Devens, MA.

Senior Field Mechanical Engineer - Assembly

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, aiming to revolutionize the energy industry. As a Senior Mechanical Engineer, you'll play a crucial role in designing and implementing advanced R&D equipment and complex machinery. You'll work with a multidisciplinary team of top scientists and engineers, owning key mechanical modules and sub-systems. The role demands innovative problem-solving, strong analytical skills, and the ability to drive projects to completion with speed. CFS offers a dynamic, fast-paced environment where your expertise in mechanical design, 3D modeling, and simulation will be vital. With over $2 billion raised since 2018, CFS is well-positioned to make fusion energy a reality. This role offers not just a job, but an opportunity to be part of a mission that could change the world's energy landscape. Join CFS to apply your skills in a challenging, rewarding environment that values diversity and pushes the boundaries of what's possible in energy technology.

Senior Mechanical Engineer role at Commonwealth Fusion Systems, designing advanced R&D equipment for fusion energy development.

Senior Mechanical Engineer

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. We're designing and building commercially viable fusion power plants.

Commonwealth Fusion Systems is at the forefront of the urgent transition to fusion energy. We're designing and building commercially viable fusion power plants, working with policymakers and suppliers to shape the future of energy. Since 2018, we've raised over $2 billion in capital, more than any other fusion energy company in the U.S.

As a Senior Supplier Development Engineer, you'll be a crucial link between suppliers and internal teams. Your goal is to foster strong relationships with suppliers while ensuring they meet quality and production requirements. You'll spend significant time on-site with vendors, reviewing engineering requirements, identifying process gaps, and driving improvements.

Key responsibilities include:
- Acting as a technical liaison between suppliers and internal teams
- Reviewing and advising on engineering requirements for complex components
- Identifying and closing process gaps at vendor sites
- Resolving supplier-related challenges to meet key milestones
- Implementing process controls and quality plans
- Supporting ISO 9001:2015 implementation
- Developing in-process inspection and test procedures
- Conducting process capability studies and measurement systems analysis
- Driving cost reduction projects
- Managing supplier contracts and performance
- Leading and mentoring team members

Requirements:
- Bachelor's Degree in Engineering (Master's preferred)
- 6+ years of experience in Engineering or Supply Chain
- Experience with supplier assessments, audits, and quality management systems
- Knowledge of machining processes and magnet manufacturing
- Strong analytical and problem-solving skills
- Excellent communication and negotiation skills
- Ability to work under pressure and adapt to changing priorities
- Familiarity with CAD and GD&T
- Willingness to travel and work flexible hours

Join us in powering the future of energy with fusion technology!

Senior Supplier Development Engineer role at Commonwealth Fusion Systems, focusing on supplier relationships and quality management in fusion energy.

Senior Supplier Development Engineer

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy, designing and building commercially viable fusion power plants.

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent and new technologies, we're designing and building commercially viable fusion power plants. We're working with policymakers and suppliers to build the energy industry of the future. Since 2018, we've raised over $2 billion in capital – more than any other fusion energy company in the U.S.

The SPARC Tokamak Instrumentation & Control Team seeks an instrumentation engineer to coordinate and execute the assembly and end to end commissioning of instrumentation for the Tokamak. Familiarity with voltage taps, optical fibers and/or resistive temperature detections in extreme environments (high vacuum; operating at cryogenic temperatures; high background and transient magnetic fields; and ionizing radiation) is desired.

Responsibilities include:
- Collaborating with primary instrumentation engineers and other stakeholders
- Coordinating installation, testing, and commissioning of tokamak instrumentation
- Managing suppliers of components and integrated subsystems
- Producing documentation for engineering deliverables
- Developing testing, installation, commissioning, operations, and maintenance procedures
- Iterating in 3D CAD on components and reviewing parts, assemblies, and drawings
- Supporting small-scale testing
- Ensuring design compliance with the Code of Record and established requirements
- Maintaining interfaces with other engineering subsystems

Requirements:
- Bachelor's or Master's degree in Mechanical Engineering, Electrical Engineering, Engineering Physics, or related field
- 5+ years of relevant engineering experience
- Experience coordinating assembly and installation of instrumentation for complex systems
- Ability to occasionally lift up to 50 lbs
- Willingness to travel or work required nights/weekends/on-call regularly
- Work in a facility with industrial hazards

Bonus skills include mechanical analysis, integration, testing, design experience, CAD tools, familiarity with codes and standards, GD&T, and FEM analysis tools.

Join us in our mission to deliver the urgent transition to fusion energy and be part of building the energy industry of the future.

Senior Instrumentation Engineer for tokamak instrumentation at Commonwealth Fusion Systems, leading fusion energy company.

Senior Instrumentation Engineer - Instrumentation Integration

Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, working to create commercially viable fusion power plants. As an R&D Instrumentation and Control Engineer at CFS, you'll play a crucial role in developing, testing, and delivering data acquisition and control systems for critical SPARC components and CFS magnets.

Your responsibilities will include:
- Collaborating with multidisciplinary teams to create reliable instrumentation and control systems
- Designing and implementing PLC equipment, sensors, and control schemes
- Developing HMI/GUI software and Real-Time software for various hardware systems
- Creating custom solutions to improve manufacturability and reliability of large magnet production test stands
- Performing data analysis with a focus on integrity, quality, and performance improvement

The ideal candidate will have:
- A Bachelor's degree in electrical engineering, physics, or a related field
- 5+ years of experience in integration and test engineering
- Strong skills in designing, testing, and debugging electronics hardware and software
- Ability to thrive in a fast-paced, dynamic environment

Additional preferred qualifications include experience with LabVIEW, Python, PLC hardware/software, and various industrial automation protocols. You'll work in an on-site role in Devens, MA, contributing to CFS's mission of delivering clean, limitless fusion energy.

Join a team that values integrity, execution, impact, and self-critique. CFS offers a unique opportunity to be part of groundbreaking technology development in the energy sector, with over $2 billion in capital raised since 2018.

Join Commonwealth Fusion Systems as an R&D Instrumentation and Control Engineer, developing cutting-edge systems for fusion energy technology in Devens, MA.

R&D Instrumentation and Control Engineer

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy. CFS collaborates with MIT to leverage decades of research combined with groundbreaking new high-temperature superconducting (HTS) magnet technology.

Commonwealth Fusion Systems (CFS) is seeking a Senior Safety Engineer to join their Environmental, Health, Safety, and Security (EHSS) team. This role will be the fusion power plant (SPARC) safety expert, ensuring safe construction, assembly, commissioning, and operation of novel systems. The ideal candidate will have a Bachelor's Degree in Safety or a related technical field with 8+ years of experience, or 10+ years of experience in a high-risk industry. Key responsibilities include conducting project walks, reviewing high-hazard work, leading incident investigations, and educating stakeholders on various safety concepts. The role requires expertise in power plant activities, strong facilitation skills, and the ability to work in an industrial environment. CFS is developing unique systems like a Cryogenic System and Radio Frequency Heating System for their fusion reactor. The company values integrity, execution, impact, and self-critique, and is committed to diversity and equal opportunity employment.

Senior Safety Engineer needed for fusion power plant safety at Commonwealth Fusion Systems, ensuring safe operations of novel systems.

Senior Safety Engineer

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.

Commonwealth Fusion Systems (CFS) is at the forefront of commercial fusion energy development. Collaborating with MIT, CFS leverages decades of research and groundbreaking high-temperature superconducting (HTS) magnet technology to create compact, cost-effective fusion power plants. Their mission is to rapidly deploy these plants to meet global decarbonization goals.

The ARC project aims to be the first machine to produce electricity from fusion energy, marking the beginning of a new industry. Building on SPARC's HTS magnets and tokamak systems, ARC introduces new elements like the Blanket System, which uses FLiBe to breed tritium and capture heat.

As a Senior Salt Operations Engineer, you'll lead operations of salt test loops, develop safety-focused workflows, and ensure operability throughout the design and engineering process. You'll train operators, act as a technical expert on salt handling, and work closely with various CFS teams.

Key responsibilities include:
- Leading salt test loop operations from conception to decommissioning
- Developing safety-oriented workflows and conducting hazard assessments
- Ensuring operability in design and engineering processes
- Developing data recording and communication workflows
- Training operators on best practices and SOPs
- Collaborating with Safety, R&D, and ARC Design teams

The ideal candidate will have:
- BS in Chemical, Mechanical, or Nuclear Engineering or related field
- 7+ years experience with novel, hazardous, high-temperature test articles
- Experience with molten salt systems and developing operating procedures
- Strong problem-solving skills and ability to work in multidisciplinary teams

CFS values diversity and is an equal opportunity employer, considering all qualified applicants without discrimination.

Join CFS to contribute to the development of limitless, clean fusion power and combat climate change in a fast-paced, dynamic environment.

Senior Salt Operations Engineer at Commonwealth Fusion Systems, leading salt test loop operations for fusion energy development.

Senior Salt Operations Engineer

Commonwealth Fusion Systems (CFS) is at the forefront of commercial fusion energy, collaborating with MIT to develop groundbreaking high-temperature superconducting (HTS) magnet technology. This innovation enables the creation of compact fusion power plants that can be built faster and more cost-effectively. CFS's mission is to rapidly deploy these power plants to address global decarbonization goals.

As a Senior Power Electronics Engineer in the SPARC team, you'll play a crucial role in designing and implementing power electronics-based electrical systems for fusion power. You'll lead complex technical projects, develop specifications for medium and low voltage components, and work on cutting-edge energy storage systems.

Your responsibilities will include designing and validating power electronics circuits, developing test methods, and ensuring high-quality designs that meet project timelines and budgets. You'll also interface with cross-functional teams, support procurement efforts, and apply best practices in electrical safety and compliance.

The ideal candidate will have 8+ years of experience in power electronics and electrical systems, with a strong background in energy storage systems and semiconductor devices. You should be comfortable leading technical teams in a fast-paced environment and have excellent communication skills.

Join CFS to be part of a dynamic team working on limitless, clean fusion power to combat climate change. This role offers the opportunity to work on groundbreaking technology with potential global impact, alongside world-class experts in fusion science and manufacturing.

Lead power electronics projects for fusion energy at Commonwealth Fusion Systems. Design and implement cutting-edge electrical systems for a sustainable future.

Senior Power Electronics Engineer - Energy Storage Systems

Commonwealth Fusion Systems (CFS) is seeking a Senior OT Cybersecurity Engineer to join their team in Devens, MA. This role is critical for securing operational technology (OT/ICS) systems and infrastructure. The ideal candidate will have a strong background in OT security, with experience in implementing and maintaining comprehensive cybersecurity programs for industrial control systems.

Key responsibilities include:
- Implementing and administering security controls for OT environments
- Monitoring OT vulnerabilities and threats
- Developing security policies and procedures
- Responding to security incidents
- Contributing to IT cybersecurity tool administration
- Providing technical consulting on security matters
- Implementing a security by design process
- Promoting cybersecurity awareness

The role requires a Bachelor's degree in Cybersecurity or Computer Science (or equivalent experience), relevant certifications (CISSP preferred), and 5 years of experience in Operational Technology. The ideal candidate will have a strong understanding of Industrial Control System (ICS) security principles, experience with SCADA/HMI systems, and knowledge of security standards like IEC 62443 and NIST 800-82.

CFS is at the forefront of fusion energy technology, leveraging high-temperature superconducting (HTS) magnet technology to create compact fusion power plants. This role offers an opportunity to contribute to a mission-driven company working towards global decarbonization goals.

The company values integrity, execution, impact, and self-critique. They offer a fast-paced, dynamic environment and are committed to diversity and equal opportunity employment.

Senior OT Cybersecurity Engineer role at Commonwealth Fusion Systems, securing operational technology for fusion energy innovation.

Commonwealth Fusion Systems Senior Software Engineer Software Engineering Jobs

Find Commonwealth Fusion Systems Senior Software Engineer software engineering jobs