Loads & Dynamics Engineer II

Long Beach, California

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:  

Relativity’s Integrated Performance teams ensure that our products work across all systems and disciplines, from trajectory design to aerodynamics to reliability analysis and beyond. Our groups size the Terran R rocket, design its missions for customer success, reliability, and reusability, and ensure that every system on the rocket and ground is engineered correctly for the demanding environments of launch and entry. Recently, we completed the preliminary design and analysis of Terran R including Relativity’s first-ever work on launch vehicle reusability, spanning advanced trajectory simulations, wind tunnel testing, and structures analysis, among many other projects. 

The Multibody Dynamics team works collaboratively with adjacent Flight Sciences teams like Loads and Aerodynamics and across the Mechanisms, Structures, Fluids, and GNCP teams to develop robust separation and deployment system architectures, generate associated loads, maintain and improve related analysis tools, provide design and test guidance, and contribute to performance trades on time and budget while meeting our technical requirements. A high degree of autonomy along with an ability to prioritize work in our fast-paced environment is required. 

About the Role: 

  • We develop loads from initial concept to data review for all hardware on Terran R
  • We help mature hardware designs through keen understanding of mechanical structures fundamentals and effective, direct communication
  • We build, validate, and document our finite-element and statistical energy models to generate component load predictions
  • We’re also responsible for developing random vibration and shock specifications and ensuring hardware across the vehicle are qualified to those specifications
  • We do both quick-look and deep-dive signal processing to inform component loads and random vibration specifications
  • We work with our partner teams to inform and deliver inputs for complex events like liftoff, stage separation, entry, and touchdown

About You:  

  • Undergrad degree in Engineering or related field
  • 2+ years of experience in system dynamics, vibration, acoustics, or similar
  • Experience solving dynamic issues across mechanical/fluid/electrical disciplines
  • Demonstrated Python, MATLAB or similar experience for engineering analysis 

Nice to Haves, but Not Required:  

  • Graduate degree in Engineering or related field
  • High-speed or modal data acquisition & signal processing experience.
  • Experience with NASTRAN, VA One, or Wave6
  • Experience with Coupled Loads Analysis (CLA) or Multibody Dynamics (MBD)
  • Experience with liquid rocket engines, launch vehicle analysis, or similar in aerospace

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:

$112,000 - $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.

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