
Posted 3 months ago
Senior Control Software Engineer
Devens, MAHybridFull-time
AI Summary
A Senior Control Software Engineer designs, implements, and verifies software and controls for advanced R&D equipment and complex machinery, working hands-on on production-ready real-time systems.
About this role
About Commonwealth Fusion 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. And we're working with policymakers and suppliers to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.
Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.
If that’s you and this role fits, we want to hear from you.
Join the power movement as a Senior Control Software Engineer
As a Control Software Engineer, you will be responsible for the design, implementation, and verification of software and controls for advanced R&D equipment and complex machinery.
As a member of the Software Engineering team you will be a hands-on technical contributor, a champion of writing excellent quality, production-ready code for mission-critical real-time systems. You will collect functional requirements from customers and produce software solutions to meet these requirements.
You will work with a variety of engineers to integrate your software into software testbeds, hardware testbeds, and the production tools. You will also contribute to the broader software ecosystem to improve tooling and processes used across the company.
What you'll do:
What we’re looking for:
Bonus points for:
Must-have Requirements:
Skills
Beckhoff TwinCATC++CI/CDEtherCATGitIPModbusPLCProfinetPythonReal-time ControlRustSCLSTUDP
Explore related jobs
More jobs at Commonwealth Fusion Systems
Staff Materials Engineer - Metallurgical EngineeringDevens, MA
Staff Computational Materials ScientistDevens, MA
Senior Manager, Manufacturing EngineeringSomerville, MA
Senior Field Mechanical Engineer - Assembly - Second ShiftDevens, MA
Senior R&D Technical Project ManagerDevens, MA
Mechanical Engineer, RF SystemsDevens, MA
Browse these categories
Market data for software engineer roles
All reports →- Role reportSoftware engineer jobs, Sep 2026: new listings down 9.7%New software engineer listings fell 9.7% to 1,506 this week, the first weekly drop in a month. Prioritize applications while 1,506 fresh roles remain open.
- Salary reportSoftware engineer salary 2026: median midpoint is $190,587The median published range midpoint for US software engineer roles is $190,587, with the middle half from $166,000 to $222,000.
- Market overviewState of tech hiring, September 2026: up 4.8%Tech hiring rose 4.8% month over month in September 2026, with 411,122 new listings. Customer support and account executive roles led the growth.