Senior Mechanical Integration Engineer

Relativity Space•Long Beach, CA

9h•$129,000 - $193,000

About The Position

Relativity Space is building rockets to serve today’s needs and tomorrow’s breakthroughs. The Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Engineers solve problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Collaboration across teams, shaping decisions, and seeing work come to life in record time are key aspects of the role. Creativity and technical rigor go hand in hand, and your voice will help define the stories being written together. This is an opportunity to leave your mark on the product, the process, and the culture, with Terran R tangible and picking up momentum.

Requirements

Minimum of 5 years of experience in full-cycle mechanical or structural design engineering roles, including experience taking hardware from concept through flight or production.
Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field.
Experience with 3D computer aided design (CAD) software.
Strong background in structural and thermal analysis, including finite element analysis methods.
Demonstrated project ownership and accountability on complex, multi-disciplinary technical projects, with a track record of delivering under schedule pressure.

Responsibilities

Own mechanical/structural design, packaging, analysis, test, and validation of secondary structure within the Terran R Avionics system. Secondary structure includes trays, brackets, dynamic isolation, thermal management, and environmental protection components.
Provide technical direction across the secondary structure portfolio — set design standards, review and approve analysis and drawings, and make architecture-level trade decisions that balance mission requirements, producibility, schedule, and cost.
Drive cross-functional integration with Avionics, Fluids, Dynamics, Thermal, Structures, and Vehicle Integration teams, serving as the primary point of accountability for your secondary structure delivery and interfaces.
Perform modal, structural, and thermal analysis of hardware to static, dynamic, and thermal environments, and ensure analysis rigor and design margins are appropriate for flight.