Senior Avionics Mechanical Engineer
Relativity Space · Long Beach, California, United States
Posted 14 days ago
or apply directly on Relativity Space's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 14 days Relativity Space's roles stay open a median of 45 days
- Reposted
- No
- Salary listed
- No 1% of Relativity Space's roles list one
- Ghost-job risk at Relativity Space
- low 0 stale, 2 reposted of 350 open
- Hiring momentum
- 498 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Relativity Space's own greenhouse board since 2026-08-03. Full hiring picture for Relativity Space.
About this role
As a Senior Avionics Mechanical Engineer at Relativity Space, you will design and develop mechanical hardware for space science avionics platforms, ensuring they can withstand launch and space environments. This hands-on role involves rapid prototyping, analysis, and testing of mechanical systems, requiring collaboration across teams in a fast-paced environment. You will be responsible for solving complex thermal and structural challenges while delivering flight-ready systems.
- benefits
- 2/5
- freshness
- 4/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Relativity Space as an employer.
What you need
- Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or a related field
- 5+ years of experience in mechanical design, packaging, or thermal management for aerospace or ruggedized electronic systems
- Proven ability to deliver mechanical systems from concept through qualification and flight
- Proficiency with CAD (SolidWorks, NX, or equivalent) and analysis tools for structural and thermal performance
- 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
Nice to have
- Familiarity with NASA or other spaceflight structural verification standards, environmental testing and qualification
- Experience designing mechanical systems for spaceflight avionics or payloads
- Experience with high-density electronics cooling (conduction, heat pipes, cold plates)
- Knowledge of materials and processes for vacuum and radiation environments
What you get
- Competitive salary and equity
- Generous PTO and sick leave policy
- Parental leave
- Annual learning and development stipend
Worth weighing
- No specific details on the company's culture or team dynamics are provided beyond the emphasis on autonomy and impact.
- The role involves working in a prototype-heavy environment, which may imply a fast-paced and potentially high-pressure setting.
Summarised from Relativity Space's posting. Read the full original.
Listed by Relativity Space on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
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