{"id":3716277,"url":"https://alion.io/job/commonwealth-fusion-systems-intern-rd-multiphysics-simulation-intern-spring-or-summer-2027","title":"Intern - R&D Multiphysics Simulation Intern - Spring or 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":"2026-11-05T05:54:30Z"}},"role":"Early Careers","role_family":"Early Careers","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":["Somerville, 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":"C++","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-11-03T19:40:24Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-06T01:45:56Z","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 R&D Multiphysics Simulation Intern\nCommonwealth Fusion Systems is seeking an R&D Multiphysics Simulation Intern to join the R&D team in Somerville, MA. The R&D Multiphysics Simulation Intern will work on advancing coupled electromagnetic and thermal circuit model workflows and models of high-temperature superconducting (HTS) magnet components for SPARC and ARC. The role includes collaborating across different departments to analyze experimental data and to validate our models.\nProgram Details:\n 13-26 week internship\n40-50 hours per week with set hourly salary based on year in school\nOpportunities on site in Somerville, 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:\nAnalyze cable magnet design concepts for ARC via reduced models capturing global and local effects\nTest new modules for simulation workflows against independent models & experimental data\nUnderstand experimental setups & data to validate & understand physical mechanisms measured\nWrite clean, documented, version-controlled code that contributes to shared simulation tools\nPresent methods and results to the R&D team and summarize the work in a final report\nWhat we’re looking for:\nPursuing a degree with a focus in Physics or Engineering (e.g. Electrical, Mechanical, Nuclear) or a related field \nCoding experience through coursework, research or personal projects (e.g. Python, MATLAB, C++)\nFoundational coursework in electromagnetism and thermodynamics or heat transfer\nProficiency in at least one programming language, preferably Python\nWorking understanding of electromagnetics and heat transfer fundamentals\nClear written and verbal communication; able to work independently and in a team \nMust-have Requirements:\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":2332,"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":"2026-11-04T00:52:36Z"}],"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:0","velocity","win:early","comp:junior,brand"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":76000,"is_top_pay":true},"html_url":"https://alion.io/job/commonwealth-fusion-systems-intern-rd-multiphysics-simulation-intern-spring-or-summer-2027","json_url":"https://alion.io/job/commonwealth-fusion-systems-intern-rd-multiphysics-simulation-intern-spring-or-summer-2027.json","meta":{"generated_at":"2026-11-06T04:48:29Z","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":8276,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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-rd-multiphysics-simulation-intern-spring-or-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-rd-multiphysics-simulation-intern-spring-or-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-rd-multiphysics-simulation-intern-spring-or-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-rd-multiphysics-simulation-intern-spring-or-summer-2027\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcommonwealth-fusion-systems-intern-rd-multiphysics-simulation-intern-spring-or-summer-2027"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3716277}},{"tool":"search_jobs","arguments":{"company":"cfs.energy","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3716277},"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); 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