Mechanical Engineer II

Proficiency in 3D modeling and drafting, including GD&T

Hands-on experience with metalworking, welding, hydraulics, manufacturing, etc.

Working knowledge of fluid components such as valves, regulators, and instrumentation

Ability to understand and develop fluid P&IDs (Plumbing and Instrumentation Diagrams) for large-scale test stands and supporting ground equipment

Experience safely operating complex fluid systems, including high pressure gas, cryogenic fluids, flammables, and hydraulics

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

$112,000

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$143,000 USD

We 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.

If you need a reasonable accommodation, please contact us at

accommodations@relativityspace.com

As a Mechanical Engineer II, you will be responsible for designing and operating rocket engine test stands for our Terran R engines and stages.

Engineers at our Stennis facility work within a team of engineers and technicians to build and modify test facilities, as well as participate in test campaigns to flight qualify our hardware.

The engineer II role may include aspects of both designing ground systems

and conducting test operations

This position will be titled Propulsion Test Engineer II within the organization.

Design advanced propulsion test stands including 3D modeling, fluids, structural, and thermal analysis, fabrication drawings, fluids P&IDs, component lists, and detailed work instructions

The 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.

Minimum of 2 years of engineering experience in a related field

Demonstrated engineering fundamentals in thermal, structural, and fluids analysis

Demonstrated drive to deliver on tight schedules, especially when unconventional & creative solutions are necessary

Hands-on fabrication experience using common power tools for projects at work/home/school