{"id":131831,"url":"https://alion.io/job/commonwealth-fusion-systems-senior-data-and-operations-software-engineer","title":"Senior Data and Operations 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":50,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Backend","role_family":"Backend","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":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"Go","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-08-20T20:53:07Z","employer_posted_date":"2026-08-20","last_verified_at":"2026-10-20T13:47:17Z","board_verified":true,"closed_at":null,"days_open":60,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":60},"description":"Join the power movement as a Senior Data and Operations Software Engineer\nThe Software Engineering team is seeking an experienced and motivated backend software engineer to become a member of the Data and Operations Software group. The group is responsible for the company’s data services and as a backend software engineer you will play a crucial role in developing the APIs and distributed systems that facilitate data acquisition, access, and processing capabilities within the company. You will work closely with physicists and other software engineers to create robust and high-performance data systems tailored to the unique needs of our groundbreaking work in the field of fusion energy.\nWhat you'll do:\nDevelop the distributed systems and services that provide data acquisition, access, and processing capabilities within the company\nWrite clean, maintainable, and efficient code in Golang\nWrite a user-friendly Python client library\nCollaborate with physicists, diagnosticians, and other engineers to gather user stories and translate the resulting requirements into code\nOptimize backend performance to improve data ingestion, retrieval, and processing times\nHelp make fusion energy a reality by making it possible to collect, retrieve, and analyze data from simulations and experiments\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\nProven experience as a backend software engineer working on distributed systems and REST APIs\nStrong problem-solving skills and attention to detail\nExcellent communication and teamwork skills\nAbility to work in a fast-paced, collaborative, and innovative environment\nProficiency with Python\nProficiency with Go (Golang) or similar language that is suitable for web services\nFamiliarity with Linux and development tools such as Git, GitHub, and Docker\nBonus points for:\nExperience in developing software for mission-critical applications\nExperience with real-time data collection and visualization\nExperience with very large volume data collection\nSome familiarity with front-end frameworks such as React\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, 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