What you'll do:
- Work within a multi-disciplinary and proven team of top scientists and engineers
- Specify, write, and test control software for advanced production equipment
- Own the specification, design, testing, and implementation of key systems such as interlocks, sensors and actuators, higher level tool control and user interface programming
- Work closely with process team to outline interfaces and requirements for equipment and software operation for equipment control
- Engage with mechanical and electrical engineers on concepts, designs, and test plans by providing data acquisition and controls as needed
- Work with external software contractors to develop the control systems for internal production tools (Define requirements, manage priorities, drive testing and implementation plans)
What we’re looking for:
- A bachelor’s degree in a relevant engineering field (e.g., mechatronics, software)
- 3+ years of experience as software engineer on complex mechanical systems -- for example: design, construction, and operation of controls for industrial, large-scale equipment
- Working knowledge of Python, C++, C and other high level languages along with modern tools like github and CI/CD release management
- Experience with developing control loops, physics-based modeling, or simulation platforms
- High self-motivation and drive to execute quickly with excellent troubleshooting and problem-solving skills
Bonus points for:
- Experience with GUI development using tools such as Ignition
- Knowledge of fieldbus systems (like EtherCAT)
- Networking basics (IP/UDP/TCP)
- Real-time system software development experience
- Familiarity with Linux environments
- Exposure to safety interlock systems or standards like NFPA 79 and SEMI S2
- Design for manufacturability, serviceability, and simplicity over complexity
Must-have Requirements:
- Ability to occasionally lift up to 50 lbs
- Perform activities such as stooping, climbing, standing, or sitting for extended periods of time
- Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
- Willingness to travel or work required nights/weekends/on-call occasionally
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What We Do
Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.
CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. CFS is now building SPARC, the world's first commercially relevant, net energy fusion demonstration device. SPARC will pave the way for the first fusion power plant, ARC, that will produce power on the grid.
The ultimate mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change.
If you are interested in joining our team, check out cfs.energy/careers for more information.

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