{"id":2823720,"url":"https://alion.io/job/2026-information-systems-laboratories-inc-junior-nuclear-engineer","title":"Junior Nuclear Engineer","company":{"id":4391089,"name":"2026 Information Systems Laboratories, Inc.","domain":"islinc.com","url":"https://alion.io/company/islinc","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"WP Job Openings","truth_index":null},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":56000,"max_usd":101000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":4038},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"MCNP","optional":false},{"name":"Microsoft Office","optional":false},{"name":"RELAP5","optional":false},{"name":"SharePoint","optional":false},{"name":"Java","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-08-11T14:48:20Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-22T08:42:25Z","board_verified":true,"closed_at":null,"days_open":71,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":71},"description":"Information Systems Laboratories, Inc. (ISL) is seeking a Junior Engineer for a full-time position in the Nuclear Safety Analysis team. ISL ( www.islinc.com) is a high-tech, employee-owned technology-development company. ISL’s Energy, Space, and Risk Management division provides comprehensive support to the nuclear and space industries such as nuclear safety analysis, complex modeling & simulation, nuclear software development through the entire software lifecycle, regulatory framework and procedures development, waste management tracking, risk management, and cyber security.\nJob Description:\nThe applicant will work alongside safety analysis experts performing a mix of research and development and customer contract work. Customers are generally advanced reactor and fuel vendors requiring ISL’s unique safety analysis expertise to meet licensing requirements of the U.S. NRC or DOE. ISL has a culture of building from fundamentals to solve complicated engineering problems in the nuclear industry, including modeling and simulation of system and core thermal-hydraulics, fuel performance, radiological consequences, etc. To this end work tasks range from basic calculations with general office software to detailed analyses with approved safety analysis codes such as RELAP5-3D, MCNP, VIPRE01, FAST, etc. It also includes writing technical reports and white papers, creating presentations, and other like tasks needed to communicate ideas, problems, and solutions. The position offers a unique opportunity to learn from the brightest minds in the field, advance state-of-the-art applications, publish research, present at conferences and workshops, and develop industry contacts and relationships.\nRequirements:\nA degree (B.S or M.S.) in Nuclear or Mechanical Engineering;\n0 to 5 years of experience in nuclear;\nA background in fluid dynamics, heat transfer, nuclear physics, and/or structural mechanics;\nGood technical writing and communication skills;\nA self-starter who:works well within a team or independently,\nhas a demonstrated ability to solve complex problems,\ncan adapt to changing situations, and\nhas the drive to verify results and know they make sense\n\nExperienced with Microsoft Office (Word, Excel, and PowerPoint) and SharePoint.\nDesired Skills:\nIn-depth experience with thermal hydraulics (fluids, heat transfer, etc.);\nAn understanding of the fundamentals of nuclear physics;\nFamiliarity with assessing criticality and radiological consequences;\nExperience with:General calculation software such as Mathcad and/or Octave,\nSystem analysis codes such as RELAP5-3D and/or TRACE,\nNuclear physics codes such as MCNP, SCALE, PARCS, etc.,\nCFD and Multiphysics codes,\nSolid modeling or CAD, and/or\nBasic scripting or light programming skills (Python, Java, etc.).\n\nSecurity Clearance\nThis position requires eligibility to obtain and maintain a U.S. Government security clearance.\nEqual Employment Opportunity\nInformation Systems Laboratories, Inc. (ISL) is an Equal Opportunity Employer. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.\nISL provides reasonable accommodation to qualified individuals with disabilities in accordance with applicable law.\nHow to Apply\nTo apply, please send your resume to Human Resources at \nJob Type: Full Time\nJob Location: Idaho Falls, ID","description_format":"text","description_chars":3597,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Government","Military","Science & Engineering"],"lifecycle":[{"event":"open","at":"2026-10-18T19:56:24Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.37,"p_room":0.28,"age_days":71,"expected_fill_days":28,"reasons":["conf:1","win:tail","crowd:junior"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/2026-information-systems-laboratories-inc-junior-nuclear-engineer","json_url":"https://alion.io/job/2026-information-systems-laboratories-inc-junior-nuclear-engineer.json","meta":{"generated_at":"2026-10-22T12:00:50Z","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":10210,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":4391089},"rest":"https://alion.io/mcp/rest/get_company?id=4391089"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2F2026-information-systems-laboratories-inc-junior-nuclear-engineer"},{"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%2F2026-information-systems-laboratories-inc-junior-nuclear-engineer"},{"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%2F2026-information-systems-laboratories-inc-junior-nuclear-engineer"},{"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/2026-information-systems-laboratories-inc-junior-nuclear-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2F2026-information-systems-laboratories-inc-junior-nuclear-engineer"}]}