{"id":3481115,"url":"https://alion.io/job/quantum-space-propulsion-engineer-ii","title":"Propulsion Engineer II","company":{"id":3813300,"name":"Quantum Space","domain":"quantumspaceinc.com","url":"https://alion.io/company/quantumspaceinc","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":18,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":116,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Aerospace","role_family":"Aerospace","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Hawthorne, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":110000,"max":160000,"currency":"USD","period":"year","gross":null,"usd_annual":160000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[],"status":"live","first_seen_at":"2026-10-29T16:55:15Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-01T20:04:53Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly.\nWho We're Looking For\nWe are seeking a motivated and technically driven Engineer II - Propulsion to contribute to the development of advanced propellant tanks, pumps, and next-generation spacecraft propulsion systems supporting Ranger missions. In this role, you will help design, develop, qualify, integrate, and support flight propulsion hardware that enables high-mobility spacecraft for national security, civil, and commercial space applications.\nWorking closely with propulsion, mechanical, systems, manufacturing, test, and flight operations teams, you will support propulsion hardware throughout the full product lifecycle-from concept development through flight operations. This position is ideal for an engineer who enjoys solving complex technical challenges, taking ownership of hardware development, and contributing directly to flight-ready spacecraft systems.\nWhere You'll Make an Impact\nContribute to the design, development, and qualification of propellant tanks, pumps, and advanced spacecraft propulsion systems\nExecute engineering tasks across design, analysis, manufacturing, testing, qualification, integration, and flight support activities\nPerform propulsion system trade studies and technical evaluations supporting spacecraft architecture decisions\nDevelop engineering analyses, models, and technical documentation supporting propulsion hardware development\nCollaborate with multidisciplinary engineering teams to deliver propulsion hardware on schedule while meeting technical and program objectives\nSupport subsystem integration, environmental testing, launch campaign activities, and mission readiness\nInvestigate propulsion hardware anomalies, perform root-cause analysis, and implement corrective actions\nContribute to the development of propulsion engineering standards, best practices, and continuous process improvements\nSupport technical reviews including System Requirements Review (SRR), Preliminary Design Review (PDR), Critical Design Review (CDR), Test Readiness Review (TRR), and Flight Readiness Review (FRR)\nOperate within a fast-paced development environment focused on rapid execution, technical excellence, and mission success\nWhat It Takes\nBachelor's, Master's, or Ph.D. in Aerospace Engineering, Mechanical Engineering, or a related engineering discipline\n3+ years of experience developing propulsion systems, fluid systems, or related aerospace hardware\nExperience designing, analyzing, fabricating, testing, and integrating propellant tanks, pumps, or spacecraft propulsion systems\nDemonstrated ability to independently execute technical work from concept through implementation while collaborating effectively with engineers, technicians, manufacturing personnel, and cross-functional stakeholders\nStrong analytical, problem-solving, and communication skills\nComfortable operating in a fast-paced, iterative spacecraft development environment\nNice-to-Have Experience\nExperience leading significant engineering tasks supporting the development of propellant tanks, pumps, or spacecraft propulsion systems\nExperience performing Computational Fluid Dynamics (CFD) and/or Finite Element Analysis (FEA)\nExperience performing performance analysis of pump-fed spacecraft propulsion systems\nExperience designing, analyzing, or testing propellant management devices (PMDs)\nExperience with laser welding, friction stir welding, or other advanced aerospace manufacturing processes\nExperience machining aerospace-grade components using CNC equipment\nExperience testing propulsion systems utilizing propellants such as hydrazine and MON-3\nExperience designing gear pumps, pump motors, or other spacecraft fluid system components\nExperience supporting fast-paced aerospace, defense, or commercial space programs\nExperience utilizing AI-enabled engineering, modeling, or design optimization tools\nWhat You'll Get\nOwnership - Take responsibility for mission-critical propulsion hardware and systems from concept through flight\nInnovation - Help develop advanced propulsion technologies enabling next-generation spacecraft mobility and maneuverability\nImpact - Deliver reliable, flight-ready propulsion systems supporting national security, civil, and commercial space missions\nGrowth - Join a multidisciplinary engineering team where you'll contribute across propulsion development, integration, testing, and mission execution\nCompensation - Competitive salary, equity, and comprehensive benefits including medical, dental, vision, generous leave, HSA, 401(k) matching, and equity participation\nLocation: Rockville, MD or Hawthorne, CA \nBase Salary: $110,000-$160,000\nThe salary range for this role is an estimate based on a wide range of compensation factors. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, technical expertise, critical skills, and business considerations. Highly competitive equity grants are included in the majority of full-time offers and are considered part of Quantum Space's total compensation package.\nAdditional Requirements\nTo comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. §1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.\nApply now. Join us in building the next generation of spacecraft.","description_format":"text","description_chars":5640,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Space Services","Space Defense"],"lifecycle":[{"event":"open","at":"2026-10-29T20:13:48Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":116,"reasons":["conf:2","velocity","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":{"stated_usd_annual":160000,"is_top_pay":true},"html_url":"https://alion.io/job/quantum-space-propulsion-engineer-ii","json_url":"https://alion.io/job/quantum-space-propulsion-engineer-ii.json","meta":{"generated_at":"2026-11-01T22:42:24Z","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":34489,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":3813300},"rest":"https://alion.io/mcp/rest/get_company?id=3813300"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fquantum-space-propulsion-engineer-ii"},{"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%2Fquantum-space-propulsion-engineer-ii"},{"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%2Fquantum-space-propulsion-engineer-ii"},{"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/quantum-space-propulsion-engineer-ii\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fquantum-space-propulsion-engineer-ii"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3481115}},{"tool":"search_jobs","arguments":{"company":"quantumspaceinc.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3481115},"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. 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