Propulsion Test Engineer II

Job overview

The Propulsion Test Engineer II role is onsite at the Stennis test site in Kiln, MS, with a stated hiring range of $104,000–$156,000. Relativity Space’s Stennis Test team evaluates Terran R components, engines, and stages to support flight readiness. The engineer works with test stands and test articles across design and build, operations, or integration. The role contributes to safe, rigorous test campaigns, facility improvements, and process development that help validate rocket hardware and prepare Terran R for reliable flights.

What you'll do

• Depending on focus area, design fluid, structural, and mechanical systems
• source components and prepare fabrication instructions
• manage test-stand fabrication, activation, upgrades, maintenance, and operations
• conduct testing and monitor test stands and telemetry
• develop procedures, automation, and data review processes
• prepare test articles through inspections and functional and leak checks
• manage test-article preparation, repairs, non-conformances, and work instructions
• coordinate with technicians and quality inspectors.

What we're looking for

Skills & competencies

propulsion test engineer ii

rocket testing

terran r

stennis test

test operations

test stands

propulsion systems

kiln ms

relativity space

$104k–$156k annually

Work arrangement

• Weekend coverage required

Benefits & perks

• Competitive salary and equity, paid time off, sick leave, parental leave, and an annual learning and development stipend.

Why this role

A bachelor’s degree in mechanical engineering, aerospace engineering, or a related field is required. No aerospace experience is required. The role may require up to 10% travel and requires a U.S. government background check for onsite work at the government partner location.

About the employer

Relativity Space is hiring for this role. Industry: Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing. Sector: 33.