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SpaceX

RAN Validation Engineer (Starlink Mobile)

Redmond, WAmidAdded yesterday

About this role

SpaceX is seeking a RAN Validation Engineer to validate and optimize the 4G/5G protocol stack for Starlink Mobile, a satellite-to-cellular service extending coverage globally. You'll develop automated test frameworks, perform field testing, analyze network performance, and collaborate with developers to resolve complex RAN issues.

What you'll do

  • Develop and maintain automated test cases and frameworks for eNB/gNB feature validation across functional, performance, interoperability, and regression testing
  • Analyze UE and eNB/gNB logs to debug RAN issues and drive developer fixes
  • Lead UE log collection and field testing to support feature development
  • Build software tools and database queries to analyze RAN performance and optimize eNB/gNB parameters
  • Manage and prioritize network issues in collaboration with developers
  • Troubleshoot and maintain RAN lab infrastructure with partner teams

What they're looking for

  • RAN parameter configuration and optimization
  • LTE/5G-NR testing and protocol knowledge
  • Python for test automation and data analysis
  • Linux and Git version control
  • Network performance analysis and KPI optimization
  • Log analysis and troubleshooting
  • Test case development and management
  • Lab infrastructure maintenance
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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
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Likely interview questions

  • Describe your experience with LTE/5G RAN parameter configuration and optimization—what specific parameters have you tuned and what KPIs did you improve?
  • Walk us through how you would develop an automated test framework for a new eNB/gNB feature, including what tools and methodologies you'd use.
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