Mechanical Engineer Ii
Relativity Space
Stennis Space Center
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.
Joining 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.
- Design fluid systems (gas, liquid, cryogenic) including Piping & Instruction Diagrams (P&IDs), analysis, and component selection
- Design structural and mechanical systems including 3D modeling, analysis, and fabrication drawings
- Source components and develop detailed fabrication work instructions
- Bring new test stands to life by managing fabrication, activation, and initial operations
- Design and implement upgrades to operational test stands to enable new test capabilities
- Maintain test stands through preventive maintenance and rapid response to anomalies & equipment failures
- Conduct test operations on high-energy components, engines, and stages
- Control test stand and test article through GUIs and automation while monitoring cameras and telemetry
- Conduct flight acceptance, qualification, and development testing campaigns to validate designs and continuously improve the rocket
- Develop and optimize GUIs, procedures, control automation, and data review processes
- Prepare test articles for testing through inspections, functional checks, leak checks, and managing non-conformances
- Bring new test stands to life and support modifications and maintenance on existing facilities
- Manage test articles through test prep, post-test processing, and repairs
- Author work instructions for test articles and coordinate work with technicians and quality inspectors
- Manage non-conformances, author corrective work instructions, and implement part requirements
- Maintain work instructions current with evolving build specifications and drive standardization across sites
- Incorporate feedback and optimize part usage to streamline hardware flow and reduce waste
- Bachelor's degree in mechanical engineering, aerospace engineering, or a related field
- No aerospace experience needed—we value unique backgrounds and perspectives
- Demonstrated ability to safely operate common power tools
- Ability to deliver on tight schedules, especially when unconventional & creative solutions are necessary
- This role may require travel to production and launch locations, up to 10%
- Valid driver's license to operate vehicles on the test site
- Proficiency in 3D modeling and drafting, including GD&T
- Strong engineering fundamentals in Thermal Fluid Systems and Structures
- Hands-on fabrication experience for complex assemblies
- Working knowledge of fluid components and ability to understand/develop fluid P&IDs for large-scale test systems
- Experience safely operating complex fluid systems, including high pressure gas, cryogenic fluids, flammables, and hydraulics
- Technical writing or documentation experience
Successful 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.
At 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.Compensation 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.
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 [email protected].
Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.
Similar jobs
Mechanical Technician Ii
ABOUT ROCKET LABRocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world conn...
Senior Mechanical Engineer
At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver custom...
Senior Ground Systems Engineer I, Mechanical
ABOUT ROCKET LABRocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world conn...
Test Operations Engineer Ii/Senior Test Operations Engineer
ABOUT ROCKET LABRocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world conn...
Straight Truck Driver - Cdl Class B
AdditionalinformationAdditional InformationWork EnvironmentWhile performing the duties of this job, the team member is frequently exposed...
Delivery Expert (05310) 9 Short And Late Night Shifts - 3701 Phoenix
AdditionalinformationAdditional InformationAll your information will be kept confidential according to EEO guidelines.CompanydescriptionC...