{"id":1290248,"url":"https://alion.io/job/pacific-fusion-summer-2027-internship-software-engineering","title":"Summer 2027 Internship- Software Engineering","company":{"id":1933128,"name":"Pacific Fusion","domain":"pacificfusion.com","url":"https://alion.io/company/pacificfusion","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":85,"open_postings":24,"ghost_share":0.167,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":78,"computed_at":"2026-10-27T05:46:45Z"}},"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":"structured","locations":["Fremont, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":63000,"max_usd":105000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":408},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"MATLAB","optional":true},{"name":"React.js","optional":true},{"name":"Rest API","optional":true},{"name":"Time Series","optional":true}],"status":"live","first_seen_at":"2026-09-09T20:46:02Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-10-27T05:25:54Z","board_verified":true,"closed_at":null,"days_open":47,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":47},"description":"About Pacific Fusion\nPacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.\nWe are rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems.\nOur plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders.\nWhy This Role Matters\nAs a Software Engineering Intern, you will help build the user interfaces and backend software systems that allow engineers, scientists and operators to run the fusion demonstration facility. You will work closely with controls engineers, scientists, and operators to develop software that presents real-time system state, manages configuration and data, and supports safe facility operations.\nWhat You'll Do\nDevelop and improve web-based user interfaces for:\nSystem status and health monitoring\nExperiment or facility configuration\nAlerts, events, and diagnostics\nAssist in building backend services that:\nServe real-time and historical facility data\nManage configuration, metadata, and system state\nInterface with controls systems and data pipelines\nSupport integration between:\nUI applications, backend APIs, and facility systems\nWrite clear, maintainable code and contribute to code reviews\nHelp test, debug, and validate software used in live environments\nWhat You Bring\nPursuing a degree in Computer Science, Software Engineering, or a related field (Junior, Senior, or graduate student preferred)\nCoursework or experience in:\nSoftware development fundamentals\nWeb or backend programming\nFamiliarity with at least one of:\nTypeScript / JavaScript\nGo or Python\nBasic understanding of:\nClient-server applications\nAPIs and data flow\nSQL and NoSQL Databases\nAdditional Requirements:\nAble to work full time, onsite for a minimum of 12 consecutive weeks beginning in Mid May- Mid June 2027\nBonus Points For\nExperience with:\nReact or other modern UI frameworks\nREST or event-based API\nGit and collaborative development\nInterest in:\nIndustrial systems, automation, or controls\nData visualization or real-time systems\nExposure to:\nContainers (Docker)\nTime-series or telemetry data\n6+ months of a previous internship, co-op, or academic project experience outside of normal classes\nGPA of 3.5 or above \nBasic experience with CAD Software, MATLAB, Python, or Excel\nWhat We Offer\nReal resume building engineering experience\nMentorship from experienced engineering professionals\nExposure to the full product development lifecycle\nA collaborative and learning-focused work environment\nDaily catered lunch and unlimited snacks provided \nAn unforgettable summer!\nPay Range:\n$30—$48 USD\nTOTAL COMPENSATION AND BENEFITS FOR ELIGIBLE EMPLOYEES\nIndustry-competitive salary\n\nEquity plan\n\n6% employer 401k matching\n\nGenerous paid time off (including sick leave, vacation, paid family leave)\n\nMedical, Dental, and Vision insurance\n\nActual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are outside our listed range. \nEQUAL OPPORTUNTITY\nPacific Fusion is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.\nPacific Fusion is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures and throughout employment. If you need assistance or any accommodation, please let us know. \nU.S. EXPORT CONTROL COMPLIANCE\nThis position may require access to information or technology that is subject to U.S. export control laws, such as ITAR or EAR. Under these regulations, we are required to ensure that such access is provided only to individuals who are classified as 'U.S. Persons.'This status includes U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.\n\nRECRUITING AGENCIES\nPacific Fusion does not accept unsolicited resumes from recruiters or employment agencies without a fully executed recruitment agreement in place. In the absence of such agreement, Pacific Fusion reserves the right to pursue and hire any candidates without an obligation to pay fees. 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