{"id":3353118,"url":"https://alion.io/job/commonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027","title":"Intern - Scientific Software Engineer - Summer 2027","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":85,"open_postings":5,"ghost_share":0,"stale_share":0.6,"repost_share":0,"time_to_fill_p50_days":54,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"intern","employment_type":"internship","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Devens, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":25,"max":38,"currency":"USD","period":"hour","gross":null,"usd_annual":76000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"Rust","optional":false}],"status":"live","first_seen_at":"2026-10-27T16:50:03Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-29T23:57:48Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Join the power movement as a Scientific Software Engineering Intern\nWe are looking for a talented Scientific Software Engineering Internto join our team! CFS interns are highly valued within the organization and placed into meaningful and challenging roles.\nProgram Details:\n13-18 week internship\n40-50 hours per week with set hourly salary based on year in school\nOpportunities on site in Devens, MA. If an intern is going to be on site, you will be responsible for your own transportation and housing\nSpecific project assignments and required technical skillset will vary based on the team’s existing need.\nOpportunities available for currently enrolled college students in all levels of schooling from bachelor’s degree to PhD\nInterns must be authorized to work in the United States for any employer\nWhat you'll do:\nPort high-performance electromagnetics kernels to the GPU. You’ll start with the Biot-Savart magnetic-field calculation incfsem, CFS’s open-source Rust library, and extend it to include cross-platform GPU kernel variants with Python bindings\nHold your code to a scientific-correctness bar. You’ll check the GPU kernels against cfsem’s existing unit tests and CPU versions, and determine if your methods are accurate enough for engineers who rely on the results to design superconducting magnets\nMeasure and report GPU performance. You’ll benchmark speed and accuracy against the optimized multithreaded Rust CPU kernels, and present a clear recommendation on where GPU acceleration pays off and where it doesn’t\n Ship public open-source work. You’ll put the new kernels behind cfsem’s existing Python interface so they reach CFS engineers working on SPARC and future fusion magnets, and you’ll leave with merged contributions to a public Rust/Python project\nWhat we’re looking for:\nPursuing an engineering degree with focus in the field of Computer Science\nContributed to a multi-person software project\nRust programming language\nSoftware performance engineering (class, project or internship experience)\nDemonstration of exceptional results through a range of different pursuits\nHigh self-motivation and drive to execute quickly with excellent troubleshooting/problem-solving skills\nMust-have Requirements:\nWillingness to travel or work required nights/weekends/on-call occasionally\nPerform activities such as typing, standing, or sitting 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, and cryogenics","description_format":"text","description_chars":2538,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Nuclear Energy","Nuclear Engineering"],"lifecycle":[{"event":"open","at":"2026-10-27T19:12:35Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":54,"reasons":["conf:3","velocity","win:early","comp:junior,brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":76000,"is_top_pay":false},"html_url":"https://alion.io/job/commonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027","json_url":"https://alion.io/job/commonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027.json","meta":{"generated_at":"2026-10-30T03:20:17Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":4415,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":8705},"rest":"https://alion.io/mcp/rest/get_company?id=8705"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcommonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fcommonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fcommonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/commonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcommonwealth-fusion-systems-intern-scientific-software-engineer-summer-2027"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3353118}},{"tool":"search_jobs","arguments":{"company":"cfs.energy","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3353118},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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