SpaceX
RAN Validation Engineer (Starlink Mobile)
About this role
SpaceX seeks a RAN Validation Engineer to validate and optimize the 4G/5G protocol stack for Starlink Mobile's satellite-to-cellular network. You'll develop automated tests, perform lab and field testing, analyze network performance, and collaborate with developers to resolve complex RAN issues.
What you'll do
- Develop and maintain automated test frameworks for eNB/gNB feature validation (functional, performance, interoperability, regression)
- Analyze UE and base station logs to debug RAN issues and drive developer fixes
- Lead field testing and UE log collection to support feature development
- Build software tools and database queries to analyze performance and optimize network parameters
- Manage network issues and coordinate resolution with development teams
- Maintain RAN lab infrastructure in collaboration with partner teams
What they're looking for
- RAN parameter configuration and optimization
- LTE/5G-NR protocol knowledge
- Python for test automation and data analysis
- Linux and Git
- Test case development and management
- Log analysis and debugging
- Network performance analysis
- SQL or database queries
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SpaceX
SpaceX develops advanced spacecraft and satellite systems, including the Starshield government satellite constellation and Starfall re-entry cargo capsule for global delivery. The company is hiring engineers in avionics integration, software test automation, mechanical design, and hardware reliability to validate flight-critical systems and ensure mission success.
- Website
- spacex.com
Likely interview questions
- Describe your experience optimizing RAN parameters—what metrics did you focus on and what methods did you use?
- Walk us through how you've debugged a complex RAN issue from logs; what was your approach?