Assembly & Test Technician II - Second Shift

Relativity Space; Long Beach (CA); On-site; USD 30,000 - 60,000; Full time

Benefits offered by this job

Competitive salary

Generous PTO and sick leave policy

Parental leave

Annual learning stipend

Job summary

Relativity Space in Long Beach is looking for an Assembly & Test Technician to work on the Terran R rocket and Aeon R engine. This role involves mechanical assembly, pressure testing, and precision cleaning, with a focus on safety and quality.

The position is a 2nd shift role running from 3:00 PM to 1:30 AM PT, with expectations of a 50-hour workweek, offering a 10% shift differential. If you have experience with heavy parts and fluid equipment, apply now!

Qualifications

• Experience working with heavy parts, mechanical assembly, and fastening.
• Experience using fluid equipment for pressure washing and testing.
• Strong communication and organization skills.

Responsibilities

• Assemble critical pressure seals and fittings for testing.
• Operate pumps for pressure testing fluid components.
• Use cleaning equipment to meet standards for oxygen handling.

Skills

Mechanical assembly

Using fluid equipment

Strong communication skills

Strong documentation ethic

Tools

High-pressure hydrostatic pumps

Sonicating immersion cleaning tanks

Torque wrenches

Job description

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 Role

The Assembly & Test Technician is responsible for executing pressure testing, mechanical assembly, precision cleaning, and thermal insulation work. You will work alongside leadership and engineering to conduct pressure testing, mechanical assembly, and precision cleaning work on various fluid assemblies for the Terran R rocket and Aeon R rocket engine.

This is a 2nd shift position with a standard schedule of 3:00 PM – 1:30 AM PT, Monday through Friday. The role includes a 10% shift differential added to the base pay. Please note that this position is structured around a baseline expectation of a 50-hour workweek, which may include occasional overtime as needed to meet operational goals.

Key Responsibilities

• Use torque wrenches and other tools to assemble critical pressure seals, fittings, flanges, and other hardware to facilitate pressure testing
• Operate high-pressure hydraulic and hydrostatic pumps within a blast enclosure to safely pressure test fluid components and assemblies
• Use sonicating immersion cleaning tanks, flushing equipment and pressure washing equipment to precisely clean assemblies and components to meet critical standards for handling liquid oxygen
• Use insulating foams and fiberglass insulation to thermally insulate sensitive components from the environment
• Escalate production blockers to leadership for timely resolution
• Work alongside engineering to resolve technical hardware non-conformances and to implement corrective actions
• Identify opportunities for continuous improvement and work alongside leadership and engineering to implement them

Must Haves

• Experience working with heavy parts, mechanical assembly, and fastening
• Experience using fluid equipment such as sonicating immersion cleaning tanks, flushing equipment, pressure washing equipment, or high-pressure hydrostatic proof testing pumps
• Strong communication skills
• Strong documentation ethic and organization skills

Nice to Haves

• Proficiency in pressure testing and precision cleaning for aerospace products
• Experience operating in a fast‑paced aerospace production environment

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.

Hiring Range: $28.80 — $43.20 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 [e-mail].