Skip to content

Mechanical

Materials Characterization Specialist II, SEM

Relativity Space logoRelativity Space$38.40–$57.60/hrLong Beach, California, United StatesPosted todayStill open, checked every night

About the job

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.

About the Team

The Materials and NDE (Non-Destructive Evaluation) team plays a central role in enabling Terran R to fly, re-fly, and scale: developing, characterizing, and inspecting materials and processes across all parts of the vehicle. From welding and additive manufacturing to advanced composites, the team works at the intersection of innovation and execution, balancing performance and reliability with cost, quality, and schedule. As we move toward first flight and beyond, the challenges become more exciting, offering opportunities to shape how we design and develop for re-use. With ownership across products, systems, and disciplines, the team gains broad exposure and drives key decisions across design, manufacturing, and operations.

About the Role

  • Conduct SEM imaging and EDX analysis of additively manufactured metallics, metal joining, and other rocket manufacturing and launch hardware
  • Conduct SEM fractography of mechanical test specimens; FOD and contamination analysis
  • Work side by side with engineers at the SEM, guiding the session to what they need
  • Conduct SEM powder morphology for additive powder qualification; SEM sample prep
  • Manage SEM requests against commit dates
  • Document results; routine calibration checks and first-line troubleshooting

About You

  • AS/AA/BS in a STEM field
  • 4+ years hands-on SEM and EDX/EDS; SEM as the primary focus
  • Comfortable running the SEM with an engineer beside you and explaining what you see
  • Experience maintaining a high-vacuum instrument
  • Thorough documentation of images, parameters, and conditions

Nice to haves, but not required

  • Experience running EBSD scans and processing EBSD data
  • Prior fractography and FOD analysis experience; familiarity with aerospace alloys - high-strength aluminum, nickel, copper, titanium
  • Experience with metallographic preparation - cut, mount, polish, etch, optical microscopy
  • Additive manufacturing and metal joining exposure - powder bed fusion, welding, powder characterization

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.

Hiring Range:

$38.40 - $57.60 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 .

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.

From Relativity Space's job posting, checked 10 Nov 2026. The employer's own page is the final word on requirements and availability.

Selected agencies hiring now

  • Sterling EngineeringEngineering and technical staffing agency

    Engineering and technical staffing firm for manufacturers, aerospace suppliers among them.

    Places: Mechanical, Technicians, Quality

  • Zobility (RGBSI)Engineering and technical staffing agency

    RGBSI's staffing and workforce division, renamed Zobility (Troy, Michigan), placing engineers, technicians, IT staff and procurement and supply chain people with aerospace, defense and automotive employers.

    Places: Mechanical, Avionics, Systems & Test, Technicians

These agencies and apps pay SpaceJobs.Now a referral fee when someone we introduce is placed or signs up. It costs you nothing and never changes your pay. Employers' own jobs below keep their own order.

Sponsored

Sponsored jobs from job networks, which pay SpaceJobs.Now when you click one.

Free tools for this application: check your resume against this job, answer the application's questions or see every free tool.

New mechanical, structures and thermal engineering jobs in space in California, by email

One email a week with the newest ones, straight from the employers' own careers sites, with the pay each posting states. Free, stop anytime.

About Relativity Space

Builds reusable rockets that make access to space more reliable and routine.

Pay on its listings: 99.8% of its open jobs state their pay

How it pays: Paid as an employee on Relativity Space's own payroll (salaried or hourly, as each posting states).

More open jobs at Relativity Space

More mechanical, structures and thermal engineering jobs in space

A mechanical, structures or thermal engineer?

One profile for every employer here. Space companies and their recruiters ask us for people with a specific degree, clearance, specialty or location: add yours once, and when a job fits, we introduce you, only with your yes. Free.

Create my profile

Relativity Space openings, sent to you weekly

Each week we send the newest postings from Relativity Space's own careers site, along with similar openings at other space employers. It costs nothing and you can stop anytime.