{"id":3299476,"url":"https://alion.io/job/relativity-space-apprentice-propulsion-test-technician","title":"Apprentice Propulsion Test Technician","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":68,"ghost_share":0,"stale_share":0.897,"repost_share":0,"time_to_fill_p50_days":62,"computed_at":"2026-10-28T05:59:10Z"}},"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":["United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":101000,"max_usd":260000,"period":"year","method":null,"sample_n":688},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-23T15:57:55Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-10-28T11:30:46Z","board_verified":true,"closed_at":null,"days_open":34,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":34},"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: \nThe Stennis Test team designs, builds, and operates Relativity’s propulsion and stage test stands. Team members are hands-on with large-scale, complex systems including fully integrated engines and stage assemblies, pushing hardware to the limits and directly contributing to flight readiness. The work is fast-paced and highly operational, ideal for those with backgrounds in aviation, automotive, manufacturing, offshore operations, industrial systems, construction, or adjacent industries. You’ll work in a close-knit, dynamic environment where collaboration between technicians, operators, and engineers is not only encouraged, but expected. As the company scales, the Stennis Test team becomes even more critical to unlocking our next phase of growth: proving out full-stage systems and paving the way for routine, reliable flights of Terran R.\nAbout the Role: \nAs an Apprentice Propulsion Test Technician, you will perform functions in daily test operations supporting engine testing, building of new test stand facilities, and modifying existing test stands. \nPerform the installation, operational checkouts, troubleshooting, and maintenance of test stand equipment and hardware\nFabrication, installation, troubleshooting, and maintenance of fluid system tubing and hardware\nAssemble, install, checkout, and maintain a wide array of components that include sensors for fluid system monitoring\nProactively perform work according to procedures, specifications, and test instructions\nDisassembly and precision cleaning of valves, regulators, and other components\nMonitor and maintain an inventory of consumables, tooling, and equipment\nMust be able to lift a minimum of 50 lbs unassisted\nMust be able to stand for extended periods\nMust be able to stoop, bend, crawl, and maneuver in tight spaces\nThis position will require occasional night shifts, weekends and possible travel\nAbout You: \nBasic experience in medium to heavy industrial maintenance, instrumentation, data and control systems, avionics hardware, and/or mechanical systems OR Associates degree in related mechanical of electrical technical discipline. Each technician has a primary focus area: mechanical or instrumentation. Below are skills needed for all technicians as well as skills necessary for each focus area.\nAbility to operate a wide range of hand and power tools for fabrication operations\nSkills needed for each focus area: \nMechanical: Experience with fluid/pneumatic systems and their components\nExperience with mechanical components and their systems\n\nInstrumentation: Experience with electronic circuits and sensor types used to measure temperature, pressure, flow, displacement, and vibration\nExperience with electronic test equipment, e.g. oscilloscopes, signal generators, and/or multi-meters\n\nNice to haves but not required: \nExperience operating industrial warehouse equipment\nOperational understanding of sensor types used to measure temperature, pressure, flow, and displacement\nExperience installing and making repairs to instrumentation, data acquisition systems, and/or avionics systems\nExperience fabricating, installing, and checking out fluid system tubing and hardware\nSuccessful candidates must clear a background check administered by the US government to obtain clearance for on-site work at our government partner location in Stennis, Mississippi.\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$23.27—$34.90 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. 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