{"id":950680,"url":"https://alion.io/job/cesiumastro-summer-2027-gnc-internship","title":"Summer 2027 - GNC Internship","company":{"id":5315,"name":"CesiumAstro","domain":"cesiumastro.com","url":"https://alion.io/company/cesiumastro","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":40,"ghost_share":0,"stale_share":0.6,"repost_share":0.025,"time_to_fill_p50_days":48,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Aerospace","role_family":"Aerospace","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":["Westminster, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":78000,"max_usd":200000,"period":"year","method":null,"sample_n":688},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"C++","optional":true},{"name":"GMAT","optional":true},{"name":"STK","optional":true}],"status":"live","first_seen_at":"2026-09-15T23:56:50Z","employer_posted_date":"2026-09-15","last_verified_at":"2026-11-11T11:03:25Z","board_verified":true,"closed_at":null,"days_open":56,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":56},"description":"As a GNC Intern, you will support the development of our in-house satellite, Element, by analyzing future satellite and constellation missions to drive technology roadmaps and business plans. This will be a project-based internship where you will get the opportunity to work on a space mission analysis assignment.You will work closely with CesiumAstro engineers on orbit design, mission analysis, system trades, and subsystem interactions. Interns will have the opportunity to contribute directly to CesiumAstro’s spacecraft programs through Element GNC analysis as well.\nDuring the program, interns will present their work to peers, mentors, and Cesium executive leadership. 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