{"id":2692878,"url":"https://alion.io/job/sedaro-senior-modeling-simulation-engineer","title":"Senior Modeling & Simulation Engineer","company":{"id":4390314,"name":"Sedaro","domain":"sedaro.com","url":"https://alion.io/company/sedaro","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"C","score":63,"open_postings":13,"ghost_share":0.615,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Arlington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":89000,"max_usd":168000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":5966},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-04-06T00:00:00Z","employer_posted_date":"2026-04-06","last_verified_at":"2026-10-23T22:34:55Z","board_verified":true,"closed_at":null,"days_open":201,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":200},"description":"Overview\nSedaro is hiring a Senior Modeling & Simulation Engineer to build the high fidelity simulationsoftwarethat powersour cutting-edge simulationplatform and help transformhow aerospace technology is built.\nTeam:Modeling & Simulation, reporting to the Team Lead\nLocation:In person in Arlington, VA\nActive TS security clearance\nCompensation\nAt Sedaro, we invest in the people who make our work possible. In addition to competitive salary, equity, and annual bonuses, eligible employees can earn additional bonuses as they progress through key security clearance milestones.\nWho We Are\nOur simulation platform enables digital mission engineering and model-based optimization through distributed, multi-domain, rapid analysis across hundreds of interacting systems. Our simulations have run at massive scale in data centers, in the loop with hardware in the lab, and on-orbit onboardreal space hardware. Join us as an early employee and transform how teams collaboratively engineer the next generation of satellite constellations and connected fleets.\nWho You Are\nYou are a self-driven and creative engineer with a passion for solving complex problems.\nYou take pride in writing clean, efficient, and maintainable code to build robust and scalable simulations.\nYou thrive on technical challenges and take pride in owning your work from concept to implementation.\nYou are a natural collaborator, adept at working with interdisciplinary teams to build and refine cutting-edge software in a fast-paced, innovative environment.\nWhat You'll Do\nAs a Senior Modeling & Simulation Engineer, you will be a hands-on individual contributor focused on expanding our platform's simulation capabilities. Your responsibilities will include:\nTaking ownership of technical projects and driving development.\nDeveloping high-fidelity simulationsoftwareand analysis tools for a diverse range of complex systems and validating these models against real-world data.\nConfiguring and executing large-scale multi-simulation studiesthatleveragecloud compute resources for uncertainty quantification, sensitivity analysis, and optimization.\nPerforming code review for peers and providing technical feedback and suggestions to other engineering teams to drive platform improvement.\nSupporting contract meetings with technical input and demonstrations to external stakeholders.\nBenefits\nEquity\nUnlimited PTO\n401(k) with 4% match\n100% premium payment for Medical Insurance\nParental Leave\nFlexible work schedule with core hours\nCompany provided lunches 3 days a week\nIndustry-leading career development opportunities\nRequirements\n6+ years of applicable engineering experience\nBachelor's degree in physics, applied math, engineering, or similar\nExpertise writing softwareto modelcomplex physical systems\nProficiencywith git, automated testing, and relatedsoftware development tools & practices\nExperience validating simulation models against real-world data\nExperience with data analysis and visualization\nAble to obtain a TS security clearance","description_format":"text","description_chars":3013,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Annual bonuses","Equity","Flexible schedule","Health insurance","Parental leave","Unlimited PTO"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-16T09:31:18Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.192,"p_room":0.28,"age_days":200,"expected_fill_days":36,"reasons":["conf:6","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/sedaro-senior-modeling-simulation-engineer","json_url":"https://alion.io/job/sedaro-senior-modeling-simulation-engineer.json","meta":{"generated_at":"2026-10-24T03:29:36Z","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":5469,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":4390314},"rest":"https://alion.io/mcp/rest/get_company?id=4390314"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsedaro-senior-modeling-simulation-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%2Fsedaro-senior-modeling-simulation-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%2Fsedaro-senior-modeling-simulation-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/sedaro-senior-modeling-simulation-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsedaro-senior-modeling-simulation-engineer"}]}