{"id":1733271,"url":"https://alion.io/job/relativity-space-aerothermal-engineer-i","title":"Aerothermal Engineer I","company":{"id":5617,"name":"Relativity Space","domain":"relativityspace.com","url":"https://alion.io/company/relativity-space","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":73,"open_postings":55,"ghost_share":0,"stale_share":0.891,"repost_share":0,"time_to_fill_p50_days":64,"computed_at":"2026-10-06T05:45:30Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Long Beach, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":90000,"max":136000,"currency":"USD","period":"year","gross":null,"usd_annual":136000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"HPC","optional":false},{"name":"Python","optional":false}],"status":"closed","first_seen_at":"2026-10-02T21:48:52Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-05T17:41:32Z","board_verified":false,"closed_at":"2026-10-05T17:41:32Z","days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.\nJoining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.\nAbout the Team: \nRelativity’s Integrated Performance teams ensure that our products work across all systems and disciplines, from trajectory design to aerodynamics to reliability analysis and beyond. Our groups size the Terran R rocket, design its missions for customer success, reliability, and reusability, and ensure that every system on the rocket and ground is engineered correctly for the demanding environments of launch and entry. Recently, we completed the preliminary design and analysis of Terran R including Relativity’s first-ever work on launch vehicle reusability, spanning advanced trajectory simulations, wind tunnel testing, and structures analysis, among many other projects.\nAbout the Role: \nDevelop and execute computational fluid dynamics (CFD) analyses to solve novel challenges in vehicle entry heating and supersonic retropropulsion \nDrive the design of major Terran R system elements - like fins, flaps, heat shields, and primary structure - to meet criteria for temperature and heating\nGuide and mentor responsible hardware engineers to ensure hardware meets aerothermal requirements \nScope and develop aerothermal databases for ascent and entry, including uncertainty quantification, from multiple sources like CFD, empirical methods, and wind tunnel testing \nSize thermal protection systems (TPS) for flight \nSupport re-usable TPS material development and testing \nMature Relativity’s tools for developing and communicating aerothermal data, including custom and commercial code, databases, and data processing tools \nTo be successful in this role, you should be self-motivated, adaptable, and able to contribute significantly to a fast-paced, integrated vehicle program. You should also be able to resolve ambiguity and drive projects to completion. Ideally, you have significant compressible flow, CFD, thermal analysis, and conjugate heat transfer experience as well as a proven track record completing projects successfully in a highly collaborative environment. \nOn a weekly basis, you will be performing analysis, developing software tools, and supporting design teams. You will also use your strong organizational skills to properly manage the documentation and communication of your actions, recommendations, and decisions. \nAbout You: \nUndergraduate degree in engineering or related field \n2+ years relevant experience\nProficiency in compressible flow and thermal analysis, preferably on entry vehicles \nExperience executing CFD workflows for external flow, preferably including engine plume simulation \nExperience solving cross-disciplinary design problems on integrated vehicles \nProficiency in Python and industry-standard CFD tools like FUN3D and Star-CCM+, including use of HPC clusters\nNice to Haves, but Not Required: \nGraduate degree in engineering or related field \n5+ years relevant experience across 1 or more program lifecycles \nExperience with thermal protection system sizing & analysis using standard tools like FIAT, CHAR, MINIVER, or LAURA \nExposure to aerothermal instrumentation, wind tunnel and flight testing\nAt Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.\nCompensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.\nHiring Range:\n$90,000—$136,000 USD\nWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.\nIf you need a reasonable accommodation, please contact us at .\n Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.","description_format":"text","description_chars":5648,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Manufacturing","Space & Aerospace","Aerospace Manufacturing"],"lifecycle":[{"event":"open","at":"2026-10-03T00:25:10Z"},{"event":"close","at":"2026-10-05T17:41:32Z"}],"visa":[],"liveness":null,"pay":{"stated_usd_annual":136000,"is_top_pay":true},"html_url":"https://alion.io/job/relativity-space-aerothermal-engineer-i","json_url":"https://alion.io/job/relativity-space-aerothermal-engineer-i.json","meta":{"generated_at":"2026-10-07T00:40:32Z","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","counted_by":"address","units_charged":1,"used_today":1190,"day_limit":5000,"remaining_today":3810,"minute_limit":60,"resets_at":"2026-10-08T00:00:00Z"}},"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":5617},"rest":"https://alion.io/mcp/rest/get_company?id=5617"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frelativity-space-aerothermal-engineer-i"},{"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%2Frelativity-space-aerothermal-engineer-i"},{"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%2Frelativity-space-aerothermal-engineer-i"},{"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/relativity-space-aerothermal-engineer-i\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frelativity-space-aerothermal-engineer-i"}]}