Propulsion Test & Systems Engineer II

Segment (Twilio); Long Beach (CA); On-site; USD 104,000 - 156,000; Full time

Job summary

Relativity Space is seeking an Engine Systems & Test professional to join the team in Long Beach, CA. You will work on simulation, software tools, and system-level architecture, collaborating with propulsion, manufacturing, and test teams to deliver engines for Terran rocket programs.

The role covers test plans, data review, coding, and hands-on testing, including hotfire operations. A degree in a science/engineering field and 2+ years in complex systems are preferred.

Qualifications

• 2+ years of experience in a complex engineering system development and/or test environment.
• Nice to have exposure to test operations environments.
• Nice to have working knowledge of combustion devices, valves, heat exchangers, or instrumentation.

Responsibilities

• Develop test plans in collaboration with product owners.
• Execute test campaigns with the Stennis team and troubleshoot technical puzzles.
• Own the exploratory operation of new and existing test article designs; evaluate test hardware behavior to support continuous engine development and certification.
• Write test sequences, review data, and perform hand-on work with test articles—including coding, sitting at consoles for hotfire tests, and designing tooling.
• Support engine subsystem troubleshooting and partner team investigations; conduct engine system analysis, simulation, and trade studies.
• Take ownership of projects of your creation to increase collective efficiency.
• Participate in stage test and flight campaigns, including sitting console for launch operations, defining stage test objectives, and defining flight concepts of operations (CONOPS).

Skills

Engineering experience

Test operations exposure

Problem solving

Education

Bachelor’s degree in science/engineering/technology/mathematics

Job description

Relativity Space is seeking an Engine Systems & Test professional to join the team in Long Beach, CA. You will work on simulation, software tools, and system-level architecture, collaborating with propulsion, manufacturing, and test teams to deliver engines for Terran rocket programs.

The role covers test plans, data review, coding, and hands-on testing, including hotfire operations. A degree in a science/engineering field and 2+ years in complex systems are preferred.