Avionics Mechanical Engineer II — Flight-Ready Thermal & Packaging

Relativity Space, Inc.; Long Beach (CA); On-site; USD 104,000 - 156,000; Full time

Benefits offered by this job

Equity

PTO & Sick Leave

Parental Leave

Learning & Development stipend

Job summary

Relativity Space in Long Beach is seeking an Avionics Mechanical Engineer to own the design, analysis, development, and delivery of electro mechanical systems for Terran R avionics. You will ensure flight-ready packaging, interfaces, and thermal management meet launch and space environment requirements.

This role emphasizes hands-on testing, first-principles iteration, and cross-functional collaboration with propulsion, structures, and electronics teams in a fast-paced environment.

Qualifications

• 3+ years of mechanical design, packaging, and thermal management for aerospace or ruggedized electronic systems.
• Proven ability to deliver mechanical systems from concept through qualification and flight.
• Hands-on experience building, testing, and debugging hardware in a lab environment.
• Strong communication skills and comfort working cross-functionally in a fast-paced, rapidly iterating team environment.

Responsibilities

• Own the design, analysis, development, and delivery of electro mechanical systems for Terran R avionics.
• Ensure the delivered avionics can survive launch and space environments, and solve thermal and packaging challenges.
• Perform analysis, testing, and iteration from first principles to flight-ready hardware.
• Collaborate across propulsion, structures, and electronics teams in a fast-paced setting.

Skills

Lab testing

Communication

Cross-functional teamwork

SolidWorks

NX

Thermal analysis tools

Education

Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or a related field

Tools

ANSYS

Job description

Relativity Space in Long Beach is seeking an Avionics Mechanical Engineer to own the design, analysis, development, and delivery of electro mechanical systems for Terran R avionics. You will ensure flight-ready packaging, interfaces, and thermal management meet launch and space environment requirements.

This role emphasizes hands-on testing, first-principles iteration, and cross-functional collaboration with propulsion, structures, and electronics teams in a fast-paced environment.