{"id":3748643,"url":"https://alion.io/job/loft-orbital-flight-dynamics-software-engineer-3","title":"Flight Dynamics Software Engineer","company":{"id":4539,"name":"Loft Orbital","domain":"loftorbital.com","url":"https://alion.io/company/loft-orbital-solutions","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":88,"open_postings":7,"ghost_share":0,"stale_share":0.286,"repost_share":0,"time_to_fill_p50_days":86,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Toulouse, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"GMAT","optional":true},{"name":"Orekit","optional":true},{"name":"STK","optional":true}],"status":"live","first_seen_at":"2026-11-04T13:18:56Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-05T15:43:29Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Wanna join the adventure?\nLoft Orbital is looking for a Flight Dynamics Software Engineer to join the Ground Platform organization.\nYou'll work on a small and driven team, developing our flight dynamics software stack so that it can:\nScale to fly 50+ satellites in orbit in a highly automated, reliable, and safe (from a collision avoidance perspective) manner\nEnable new conops and customer missions with demanding orbit determination, stationkeeping, and attitude performance requirements\nWe're looking for someone with a solid theoretical understanding of astrodynamics, operational flight-dynamics experience, and software-engineering foundations. If you enjoy solving hard problems and working in a fast-paced and supportive environment, we'd love to hear from you.\nAbout this role:\n Implement and improve upon algorithms for orbit determination, orbit propagation, maneuver planning (stationkeeping/orbit transfer), conjunction assessment, collision avoidance, and attitude modeling, contributing to our open-source astrodynamics tooling that powers both flight operations and simulation work across the company\nDevelop and maintain the in-house flight dynamics ground software backend applications that compute, store, and serve our fleet’s ephemerides, maneuvers, conjunctions, target orbits, etc\nInterface with systems and missionengineers to help translate technicalmission requirements and customer demands into operational outcomes in orbit\n Support satellite operations engineers by providing astrodynamics expertise during LEOP/anomalies/conjunction response and assisting with configuring our software stack for various customer missions\nMust Haves:\nBachelor's degree in physics or an engineering discipline\nDeep technical understanding of some of the following topics:orbital mechanics, state estimation, spacecraft maneuver planning, conjunction assessment, and spacecraft attitude modeling\nFundamentals of numerical methods: solvers, optimization, and simulation techniques\nExperience with designing and developing software libraries and backend services, preferably in Python.\nExcellent communication skills, both written and verbal\nNice to Haves:\nMaster’s degree in physics or an engineering discipline\nProficiency in astrodynamics tools such as STK, Astrogator, GMAT, OreKit, Monte, Copernicus, OpenSpaceToolkit, or equivalent.\nDemonstrated practical experience in spacecraft constellation flight dynamics operations\nDemonstrated practical experience building high-performance backend software applications and/or libraries\nCapable of solving complex problems within a highly collaborative environment\nSome of Our Awesome Benefits:\nEquity, we want you to have an active role in our success\nUp to 35 days of Paid Time Off (vacations & RTT ) and flexible working hours, we want you to be at your best\nHealth and life insurance, we care about your health\nLunch Vouchers, because let’s be honest, we love food! (we even have a slack channel about it #loft-gourmand)\nCross-office travel opportunities between San Francisco, Colorado, and Toulouse to learn from our differences\nCompany and team off-sites and many other events to work & celebrate together\nRelocation assistance to Toulouse when applicable","description_format":"text","description_chars":3220,"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":["Equity","Flexible schedule","Life insurance","Relocation assistance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Satellite Manufacturing","Space Services"],"lifecycle":[{"event":"open","at":"2026-11-04T14:27:08Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":86,"reasons":["conf:0","velocity","win:early"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/loft-orbital-flight-dynamics-software-engineer-3","json_url":"https://alion.io/job/loft-orbital-flight-dynamics-software-engineer-3.json","meta":{"generated_at":"2026-11-05T19:35:24Z","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":26260,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":4539},"rest":"https://alion.io/mcp/rest/get_company?id=4539"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Floft-orbital-flight-dynamics-software-engineer-3"},{"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%2Floft-orbital-flight-dynamics-software-engineer-3"},{"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%2Floft-orbital-flight-dynamics-software-engineer-3"},{"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/loft-orbital-flight-dynamics-software-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Floft-orbital-flight-dynamics-software-engineer-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3748643}},{"tool":"search_jobs","arguments":{"company":"loftorbital.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3748643},"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. Docs: https://alion.io/developers"}}