{"id":131830,"url":"https://alion.io/job/commonwealth-fusion-systems-senior-embedded-software-engineer","title":"Senior Embedded Software Engineer","company":{"id":8705,"name":"Commonwealth Fusion Systems","domain":"cfs.energy","url":"https://alion.io/company/commonwealth-fusion-systems","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":88,"open_postings":6,"ghost_share":0,"stale_share":0.5,"repost_share":0,"time_to_fill_p50_days":53,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Devens, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":140000,"max":200000,"currency":"USD","period":"year","gross":null,"usd_annual":200000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-08-21T15:57:40Z","employer_posted_date":"2026-08-21","last_verified_at":"2026-10-19T21:17:41Z","board_verified":true,"closed_at":null,"days_open":59,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":59},"description":"Join the power movement as a Senior Embedded Software Engineer\nAs a Senior Embedded Software Engineer, you will be responsible for the design, implementation, and verification of software and controls for advanced R&D equipment and complex machinery.\nAs a member of the Software Engineering team, you will be a hands-on technical contributor. You will be 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.\nYou 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.\nWhat you'll do:\nDevelop control software across multiple platforms, including real-time Linux, microcontrollers, and FPGAs\nVerify embedded software with Hardware-in-the-loop testbeds and field commissioning activities\nImprove software tooling to increase developer velocity and enable new capabilities\nWhat we’re looking for:\nBachelor's degree in a relevant engineering field (computer science, computer engineering, electrical engineering, industrial engineering, etc.)\n7+ years relevant experience\nProfessional experience with embedded, real-time control systems\nProfessional experience with producing production quality control software\nExperience with modern software development lifecycle practices (CI/CD, git version control, unit testing, integration testing, etc\nProficiency with python\nProficiency with at least one real-time control language (c++, rust, etc)\nBonus points for:\nExperience with mission or safety critical systemsExperience with large-scale industrial systems\nExperience with large-scale industrial systems\nFamiliarity with real-time Linux\nFamiliarity with bare-metal micro controllers\nFamiliarity with FPGA development\nFamiliarity with common I/O protocols (SPI, CAN, serial, etc)\nFamiliarity with general networking (IP/UDP)\nMust-have Requirements:\nPerform activities such as typing, standing, sitting, etc. for extended periods of time\nDedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics\nWillingness to occasionally travel or work required 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