Your propulsion résumé lists broad aerospace experience. Relativity's open roles demand turbopump, combustion-device, or test-engineering expertise — and pay up to $225,500 for it.

In December 2025, six Aeon R engines occupied NASA Stennis Space Center in a single day. That same month, Relativity Space released 1,526 flight parts and shipped another first-stage engine for acceptance testing. The thrust structure for flight two was already being built in Long Beach. The stage-two tank had finished acceptance testing and was headed back to the factory. All main combustion chambers for flight one had been printed. Two additional first-stage engines completed acceptance testing. Aeon V second-stage development testing continued around the clock.

The density of concurrent propulsion activity — six engines at Stennis, combustion chambers printed, flight-two hardware in build, qualification and acceptance testing running in parallel — signals a startup that has crossed the threshold from development into industrialized hardware production.

Zero G Talent's job board shows Relativity added 30 roles in the past seven days. Among them: Staff Turbomachinery Engineer, Turbine Development and Senior Turbomachinery Engineer, Turbine Development, both in Long Beach. Three years ago, neither title existed on the company's careers page.

Relativity Space's propulsion organization in Long Beach is scaling from a generalist startup model into dedicated turbopump, combustion-device, and test-engineering sub-teams, a structural shift tracking toward a second-half-2026 Terran R first launch, backed by a $2.9 billion contract backlog and a workforce that now exceeds 2,200. The change is visible in job titles, salary bands, and organizational structure, and it reveals something about where rocket propulsion hiring is heading: niche specialists are replacing aerospace generalists, and candidates who understand that realignment will be the ones landing roles at Relativity, SpaceX, and Blue Origin.

How Design Reviews Forced a New Org Structure

Terran R moved from Conceptual Design Review in March 2023 to Preliminary Design Review in December 2023 to vehicle-level Critical Design Review in December 2024 — under two years from concept to a locked design. By March 2025, nearly half of all component CDRs were complete and over half the vehicle's mass had been released to manufacturing, including all first-stage engines.

Then the pace accelerated further. In May 2025, Relativity completed 17 additional component-level CDRs. Engine qualification for Aeon R officially began that same month, with the qualification unit built at Long Beach headquarters and shipped to Stennis. In August, another 18 component-level CDRs were completed, many tied to the second-stage Aeon V engine or fluids components. The thrust structure build, described by the company as one of the most intricate and complex parts of the vehicle, wrapped up. All eight first-stage and two second-stage barrels for flight one had been welded. First-stage tank welding had begun, with the first circumferential friction stir weld joining two fuel barrels.

By December 2025, the first flight Aeon R engine had been shipped to Stennis for acceptance testing, another first-stage flight engine followed, and the second flight's thrust structure was in active build.

This velocity (from CDR to qualification to flight-hardware production in roughly 18 months) is what forced Relativity to build dedicated propulsion sub-teams. Generalists who wear multiple hats across a development program can move fast in the early stages. When the output is six engines at a test stand and 1,526 flight parts released in a single month, the org needs people who own specific subsystems.

Inside the Long Beach Propulsion Org — Roles, Sub-Teams, and What They Actually Do

The specific propulsion roles Relativity is hiring in Long Beach reveal a mature sub-team structure (turbopump, combustion, test, and analysis) that mirrors the organizational logic of far larger propulsion shops.

Open positions include Lead, Propulsion Analysis; Lead, Propulsion Engineering; Manager, Propulsion Analysis; and Senior Stage Propulsion Engineer, all based in Long Beach. Zero G Talent's board adds Staff Turbomachinery Engineer, Turbine Development and Senior Turbomachinery Engineer, Turbine Development — roles targeting the Aeon R turbopump specifically.

The Aeon R's design demands this specialization. The first stage uses 13 3D-printed Aeon R engines, each producing 269,000 pounds of thrust at sea level, with nine able to gimbal. The second stage uses a vacuum-optimized engine producing 323,000 pounds of thrust. The two stages share roughly 80% design commonality, meaning turbopump and combustion work must serve two engine variants simultaneously. An engineer working on the Aeon R turbopump is, by extension, working on the second-stage engine.

The company's careers page and live job postings show propulsion roles concentrated at Long Beach headquarters (nicknamed "The Wormhole"), while test operations roles cluster at Stennis. That geographic and functional split defines the org structure: design and analysis in Long Beach, test and acceptance at Stennis, launch operations at Cape Canaveral's LC-16.

How Relativity's Propulsion Salaries and Specializations Compare to SpaceX and Blue Origin

Relativity's compensation bands for specialized propulsion roles are competitive with SpaceX and Blue Origin, but the required specializations differ. Understanding those differences is how candidates position themselves.

Blue Origin added 145 roles in the past week, many of them structural and mechanical positions tied to New Glenn hardware. Rocket Lab's bands overlap with Relativity's mid-level roles but sit below Relativity's staff-level turbomachinery positions.

The average Relativity salary across all roles ranges from $64,970 for a Technician to $215,740 for a Principal Engineer, based on 483 Glassdoor submissions. Propulsion specialists sit in the upper quartile.

For job-seekers, the signal is clear: niche turbopump or combustion-device expertise commands a premium over generalist propulsion engineering, and Relativity's bands reflect that premium explicitly.

The Hardware Pulling These Hires — Aeon R and Aeon V Engine Progress

The Aeon R engine's test milestones and the start of Aeon V development testing create a hiring pull that is technically specific. Candidates need LOX/LNG experience and familiarity with 3D-printed combustion hardware.

By March 2025, the flight-intent Aeon R engine (Aeon R 1.3) had accumulated over 2,500 seconds of runtime, exceeding 1.5 times its reusable service life. Total runtime across all engine configurations surpassed 6,300 seconds. That same month, the engine achieved its longest burn yet, exceeding 160 seconds. In April, it demonstrated thrust vector control with 5.5 degrees of motion, the maximum gimbal range allowed by the test stand.

The qualification engine achieved 11 hot fires in May 2025, including a record of 4 hot fires in under 10 working hours. Relativity expects to complete the Aeon R qualification campaign by summer 2025. Hot fire testing of the Aeon V second-stage development engine began at Stennis in August.

All Aeon engines use liquid oxygen and liquid natural gas (LOX/LNG) propellants. That combination narrows the candidate pool to engineers with relevant feed-system and injector experience. Relativity's proprietary Stargate 3D printers, described as the largest in the world, add another filter: combustion chamber and turbopump work involves additively manufactured hardware, and not every propulsion engineer has that background.

Stennis and LC-16 — A Dual-Site Buildout

Relativity occupies four exclusive-use test stands in E4, two in E2, and one cell on E1 at Stennis. These facilities have enabled more than 2,000 engine tests, multiple successful mission duty cycles, and fully integrated stage testing of a 3D-printed orbital flight article. The company will use over 150 additional acres within the Stennis Test Complex for new test infrastructure. Ground clearing began for new engine test stands, a full-scale second-stage stand, office buildings, and a vehicle hangar.

In December 2025, first columns were installed for a new hangar at Stennis. Propellant pad infrastructure for the A2 stage test stand was activated with cryogenic system flushes at the LOX pad.

At LC-16, foundation installation for the water tower had begun by May 2025 and the east flume wall of the diverter pit was complete. By August, a major concrete pour for the transport erector cap was done. By December, construction shifted toward facility outfitting and launch operations planning, with ground broken on an engineering support building that will seat up to 150 people. Steel went vertical for the pad support facility; siding and insulation installation continued on the horizontal integration facility; cement was poured above grade in the launch mount.

Don Kaderbek, Vice President of Test and Launch, oversees this dual-site buildout. The roles under his org span test operations, data and controls systems, and propulsion test engineering.

Why Relativity Can Afford to Hire This Way

A $2.9 billion contract backlog, a $650 million Series E, and a design-for-manufacturing philosophy that reduces part counts by 100x give Relativity the revenue confidence and cost structure to invest in specialized propulsion talent now.

Terran R's contract backlog exceeds $2.9 billion across more than a dozen customers as of March 2025, including a multi-launch agreement with OneWeb. The company closed a $650 million Series E in June 2021 led by Fidelity Management & Research, with participation from Baillie Gifford, BlackRock, Coatue, Tiger Global, Tribe Capital, and others — capital that funded the Long Beach and Stennis expansions.

Relativity's supply chain is designed to build rockets with 100 times fewer parts in less than 60 days, using proprietary Stargate 3D printers. That manufacturing philosophy shifts engineering effort upstream into design and analysis, exactly where its specialized propulsion roles sit.

Terran R is designed for an annual flight rate of 50–100 flights, with Block 1 teaching first-stage recovery before Block 2 takes over. If that cadence is achieved, the propulsion team will need to sustain rapid reuse inspection and refurbishment. The company employs over 2,200 people across five locations (Long Beach, Cape Canaveral, Stennis, Seattle, and Washington, DC) — scale that justifies dedicated sub-teams rather than generalists.

What This Means for Job-Seekers

The shift from generalist to specialist propulsion hiring at Relativity, mirrored across the industry, means candidates must reframe their experience around specific hardware domains (turbopumps, combustion devices, or test operations) rather than broad aerospace competence.

There are 475 rocket propulsion job listings in Long Beach, CA on Indeed.com. That local market is dense enough that differentiation by sub-specialty is essential.

Relativity is an office-first company with typical on-site presence required, concentrated at Long Beach. Benefits include competitive salary and equity, 15 PTO days per year, parental leave, an annual learning and development stipend, a $10,000 family-building stipend, comprehensive medical, dental, and vision coverage, company-funded HSA contributions, mental-health resources, and Carrot Fertility partnership. The packages are designed to attract specialized talent in a competitive market.

The company's open roles — Staff Turbomachinery Engineer, Senior Stage Propulsion Engineer, Lead Propulsion Analysis — map to specific Aeon R and Aeon V subsystems, not to generic propulsion program management.

Candidates who can point to LOX/LNG experience, additive manufacturing familiarity, or specific turbopump or injector design work will outperform those who present as capable-but-general aerospace engineers. Relativity's job postings, salary bands, and org structure all reward that specificity.

In December 2025, as six Aeon R engines sat at Stennis and the second flight's thrust structure was in active build in Long Beach, the message to propulsion engineers was no longer subtle: the era of the scrappy generalist rocket startup is over. Relativity is hiring specialists, paying for specialists, and building hardware that demands specialists — and the candidates who understand that shift will be the ones wiring up the next generation of 3D-printed rockets.

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