Senior Avionics Mechanical Engineer – Spacecraft Hardware

Relativity Space, Inc.; Long Beach (CA); On-site; USD 150,000 - 226,000; Full time

Job summary

Relativity Space is seeking a Staff Avionics Mechanical Engineer to own the design, development, and delivery of mechanical hardware for next-generation space science avionics platforms. You will oversee enclosures, mounting structures, thermal accommodations, and interfaces to spacecraft systems.

This hands-on role demands strong CAD skills, lab-style testing, rapid iteration from first principles, and cross-functional collaboration to deliver flight-ready systems on a fast-paced schedule.

Qualifications

• Bachelor’s or Master’s in Mechanical Engineering or related field.
• 7+ years in mechanical design, packaging, or thermal management for aerospace or ruggedized electronics.
• Proven ability to deliver mechanical systems from concept through qualification and flight.
• Proficiency with CAD and analysis tools for structural and thermal performance.
• Hands-on experience building, testing, and debugging hardware in a lab environment.

Responsibilities

• Own the design, development, and delivery of all mechanical hardware for next-generation space science avionics platforms.
• Ensure mechanical systems survive launch and space environments; solve thermal and structural challenges in compact packaging.
• Perform analysis and testing; lead delivery of flight-ready avionics mechanical systems.

Skills

Mechanical design

Packaging

Thermal management

CAD proficiency

Lab testing

Cross-functional teams

Education

Bachelor’s or Master’s in Mechanical or Aerospace Engineering

Tools

SolidWorks

NX

Job description

Relativity Space is seeking a Staff Avionics Mechanical Engineer to own the design, development, and delivery of mechanical hardware for next-generation space science avionics platforms. You will oversee enclosures, mounting structures, thermal accommodations, and interfaces to spacecraft systems.

This hands-on role demands strong CAD skills, lab-style testing, rapid iteration from first principles, and cross-functional collaboration to deliver flight-ready systems on a fast-paced schedule.