{"id":259148,"url":"https://alion.io/job/true-anomaly-principal-gnc-engineer","title":"Principal GNC Engineer","company":{"id":3381,"name":"True Anomaly","domain":"trueanomaly.space","url":"https://alion.io/company/true-anomaly","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":93,"open_postings":176,"ghost_share":0.04,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":105,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Aerospace","role_family":"Aerospace","seniority":"lead","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Denver, United States","Long Beach, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":220000,"max":315000,"currency":"USD","period":"year","gross":null,"usd_annual":315000},"salary_estimate":null,"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Design Controls","optional":false},{"name":"Python","optional":false},{"name":"Sensor Fusion","optional":false}],"status":"live","first_seen_at":"2026-03-25T17:22:13Z","employer_posted_date":"2026-10-10","last_verified_at":"2026-10-27T06:54:35Z","board_verified":true,"closed_at":null,"days_open":215,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":215},"description":"Space is a warfighting domain. True Anomaly seeks those with the talent and ambition to build the technology that secures it.\nOUR MISSION\nTrue Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors - enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground.\nOUR VALUES\nBe the offset. We create asymmetric advantages with creativity and ingenuity.\nWhat would it take? We challenge assumptions to deliver ambitious results.\nIt’s the people. Our team is our competitive advantage and we are better together.\nBENEFITS & PERKS*\nBest-in-class healthcare: 100% company-paid medical, dental, and vision coverage for you and your dependents, with HSA/HRA options\n Generous time off: Flexible Time Off (FTO) for exempt employees, accrued PTO of up to 25 days for non-exempt employees, plus 12 paid holidays; Parental Leave; Sick Leave\nFuel for your day: Daily catered lunch and unlimited snacks for in-office employees\n And more: 401(k) retirement plan, fitness reimbursement, and Dog Fridays\nEquity participation: Equity is included as part of our total compensation package, giving you an opportunity to share in the company’s success.\n*Do not apply to fixed term and temporary roles\nRESPONSIBILITIES\nOwn end-to-end development of spacecraft Guidance, Navigation, and Control (GNC) systems, including architecture definition, algorithm design, software implementation, hardware integration, verification, and flight operations\nDesign, test, and validate GNC flight software for spacecraft operating in LEO, GEO, and cislunar environments\nDevelop advanced attitude and orbit determination algorithms, including sensor fusion, state estimation, covariance analysis, and Kalman filtering (EKF/UKF/batch)\nDesign control laws for attitude control, orbit control, maneuver execution, and closed-loop guidance, ensuring required performance and robustness under uncertainties\nLead creation and improvement of high-fidelity 6-DOF simulations, sensor/actuator models, disturbance environments, Monte Carlo pipelines, and SIL/HIL integration\nConduct system-level GNC trade studies and develop recommendations for hardware such as reaction wheels, torque rods, thrusters, star trackers, IMUs, GNSS units, and optical navigation sensors\nDefine GNC subsystem requirements, interfaces, calibration procedures, verification/validation plans, and support design reviews (SRR/PDR/CDR)\nWork cross-functionally with avionics, software, propulsion, mechanisms, mission operations, and systems engineering teams to ensure seamless integration of GNC functionality\nSupport on-orbit commissioning, calibration, maneuver planning, fault investigation, and anomaly resolution\nMentor junior engineers, lead design/code reviews, and help establish GNC best practices, tools, and development standards \nQUALIFICATIONS\nBachelor’s degree in aerospace engineering, mechanical engineering, physics, or related discipline (advanced degree preferred)\n15+ years of hands-on experience developing and fielding spacecraft GNC systems\nStrong proficiency in C++ and Python, including software development, numerical methods, and algorithm implementation\nDeep understanding of spacecraft attitude dynamics, orbital mechanics, environmental perturbations, and actuator/sensor physics\nSignificant experience with estimation and filtering (EKF, UKF, batch least squares), sensor fusion, covariance analysis, and navigation performance assessment\nExperience designing control laws and performing stability, robustness, and frequency-domain analysis\nDemonstrated ability to develop and maintain complex high-fidelity simulations and Monte Carlo frameworks\nExperience testing and integrating GNC algorithms with flight hardware, including star trackers, IMUs, reaction wheels, GN&C avionics, and propulsion components\nExperience defining subsystem requirements, verification plans, and participating in formal design reviews\nAbility to lead cross-disciplinary technical efforts and deliver results with minimal direction\nStrong communication skills and ability to mentor and guide less experienced engineers\nU.S. Citizen and eligible for DoD Secret or TS/SCI clearance\nPREFERRED SKILLS AND EXPERIENCE\nExperience developing GNC systems for proximity operations, formation flying, optical navigation, autonomous maneuvering, or precision pointing missions\nExpertise with FDIR related to GNC components, including failure detection, isolation, and recovery techniques\nExperience with autonomous guidance or onboard trajectory optimization\nFamiliarity with safety-critical or fault-tolerant flight software architectures\nExperience with real-time operating systems, embedded software, and hardware-in-the-loop testbeds\nTrack record of technical leadership, ownership of major subsystem design, or architecting full GNC solutions \nCOMPENSATION\nColorado Base Salary: $220,000 - $315,000\nEquity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave \nYour actual level and base salary will be determinedon a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, location, and experience. \nADDITIONAL REQUIREMENTS\nWork Location -This is an onsite position, successful candidates will be located near Long Beach, CA or Denver, CO. \nWork environment -the work environment; temperature, noise level, inside or outside, or other factors that will affect the person's working conditions while performing the job.\nPhysical demands -the physical demands of the job, including bending, sitting, lifting and driving.\nThis position will be open until it is successfully filled. To submityour application, please follow the directions below. \n #LI-Onsite\nTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.\nTrue Anomaly is committed to equal employment opportunity on any basis protected by applicable state and federal laws. If you have a disability or additional need that requires accommodation, please do not hesitate to let us know.\nTo protect candidates and our company from application fraud and impersonation, we use third-party tools to verify applicant identity and detect fraudulent applications. Learn more in our Privacy Notice.","description_format":"text","description_chars":6631,"description_truncated":false,"requirements":{"experience_years_min":15,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan","Equity","Flexible time off","Parental leave","Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Satellite Manufacturing","Space Services","Space Defense"],"lifecycle":[{"event":"open","at":"2026-09-05T11:41:41Z"}],"visa":[],"liveness":{"score":19,"band":"cold","label":"Long shot","p_open":1,"p_active":0.672,"p_room":0.28,"age_days":215,"expected_fill_days":105,"reasons":["conf:3","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":315000,"is_top_pay":true},"html_url":"https://alion.io/job/true-anomaly-principal-gnc-engineer","json_url":"https://alion.io/job/true-anomaly-principal-gnc-engineer.json","meta":{"generated_at":"2026-10-27T09:37:29Z","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":10789,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":3381},"rest":"https://alion.io/mcp/rest/get_company?id=3381"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftrue-anomaly-principal-gnc-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%2Ftrue-anomaly-principal-gnc-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%2Ftrue-anomaly-principal-gnc-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/true-anomaly-principal-gnc-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftrue-anomaly-principal-gnc-engineer"}]}