RAN Validation Engineer (Starlink Mobile)

SpaceX
Redmond, WA
On-site

Who this role is best for

Aimed at mid-level engineers with RAN validation experience who can work in a collaborative, performance-driven environment. The role emphasizes technical expertise in 4G/5G protocol stacks and requires hands-on testing and optimization in Redmond, WA.

Best fit for

  • Mid-level engineers with hands-on experience in LTE/5G-NR validation and test automation
    — “Experience developing, executing, and managing LTE/5G-NR test cases”
  • Candidates who have prior lab and field testing experience in product certification or new product introduction
    — “2+ years of lab and/or field experience in new product introduction or product certification”
  • Individuals with strong analytical skills and a track record of optimizing network performance
    — “Strong skills in debugging and performance optimization; exceptional analytical skills and engineering fundamentals”

Things to consider

  • Must be eligible for U.S. Government export authorizations, limiting international candidates
    — “applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State”
  • Potential for extended work hours and weekends, which may affect work-life balance
    — “Willing to work extended hours and weekends when needed”

How to stand out

  • Highlight experience with eNB/gNB validation and debugging at protocol layers like PHY, MAC, and RRC
    — “Strong understanding of LTE and 5G-NR protocols with hands-on experience debugging issues at the PHY, MAC, and RRC layers”
  • Showcase proficiency in Python for test automation and data analysis in your resume and interviews
    — “Experience with Python for test automation and data analysis”
  • Demonstrate your ability to build and manage software tools for performance analysis and parameter tuning
    — “Build software tools and database queries to analyze RAN performance and tune eNB/gNB parameters to optimize KPIs”
  • Emphasize your experience with UE log analysis using tools like QXDM/XCAL
    — “Experience with UE log analysis and associated software tools (QXDM/XCAL)”
  • Demonstrate your ability to manage and prioritize network issues effectively
    — “Manage and prioritize network issues and work with developers to resolve them”
Pace · Fast PacedCollaboration · MediumAutonomy · MediumDecision Impact · TeamLevel · Mid

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • developed automated test cases
  • optimized network performance
  • troubleshooted RAN issues
Typical background
STEM degree2+ years RAN validation experience

Skills & requirements

Required

RAN ValidationAutomated Test Case DevelopmentNetwork Performance AnalysisUE Log AnalysisRAN Lab Equipment Troubleshooting

Preferred

Lte/5g-nr ProtocolsPHY, MAC, RRC Layer Debugging

Stack & domain

RAN Validation4g/5g RAN Software Protocol StackAutomated Test CasesEnb/gnb Feature ValidationUE Log AnalysisRAN Performance AnalysisRAN Lab EquipmentPHYMACRRC Layers3GPP SpecificationsRF TroubleshootingPythonLinuxGitLte/5g-nr Test CasesQxdm/xcalProblem-solvingTeamworkCollaborationCommunicationDebuggingPerformance OptimizationStarlinkSatellite-to-mobile NetworkCellular ConnectivityRAN

About the role

Original posting from SpaceX via Greenhouse

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

RAN VALIDATION ENGINEER (STARLINK MOBILE)

SpaceX is developing a satellite-to-mobile network to deliver ubiquitous cellular connectivity worldwide through the Starlink constellation. We are partnering with mobile network operators globally to provide direct-to-cell service, extending coverage to billions of existing cellular devices. Starlink Mobile was designed to connect the unconnected, and this new product will greatly expand that mission by extending coverage to billions of existing cellular devices. Applications include connecting hikers in national parks, emergency responders, rural communities, remote sensors, and people in emergency situations. 

As a RAN Validation Engineer on the Starlink Mobile program, you will be responsible for validating and optimizing the 4G/5G RAN software protocol stack. This includes developing automated test cases for feature validation, performing lab and field testing, analyzing and optimizing network performance, and collaborating with developers to resolve complex issues. 

RESPONSIBILITIES: 

Develop and maintain automated test cases and frameworks for eNB/gNB feature validation, including functional, performance, interoperability, and regression testing 

Analyze UE and eNB/gNB logs to debug and root-cause RAN issues, and collaborate with developers to drive fixes 

Lead UE log collection and field testing to support eNB/gNB feature development 

Build software tools and database queries to analyze RAN performance and tune eNB/gNB parameters to optimize KPIs 

Manage and prioritize network issues and work with developers to resolve them 

Troubleshoot and maintain RAN lab infrastructure in collaboration with partner teams 

BASIC QUALIFICATIONS: 

Bachelor’s degree in a STEM discipline 

Experience with RAN parameter configuration, optimization, and performance analysis 

Experience with Python for test automation and data analysis, along with experience in Linux and code repositories (Git)

Experience developing, executing, and managing LTE/5G-NR test cases (including test planning and results tracking) 

PREFERRED SKILLS AND EXPERIENCE: 

2+ years of experience with eNB/gNB and/or modem validation 

2+ years of lab and/or field experience in new product introduction or product certification 

Strong understanding of LTE and 5G-NR protocols with hands-on experience debugging issues at the PHY, MAC, and RRC layers 

Experience with UE log analysis and associated software tools (QXDM/XCAL) 

Experience with RAN lab equipment, including testbed setup and RF troubleshooting 

In-depth knowledge of 3GPP specifications and R17+ RAN features 

Experience with RAN lab equipment, including testbed setup and RF troubleshooting 

Strong skills in debugging and performance optimization; exceptional analytical skills and engineering fundamentals 

ADDITIONAL REQUIREMENTS: 

Willing to work extended hours and weekends when needed

COMPENSATION AND BENEFITS:

Pay Range:

Level 1: $125,000.00 - $165,000.00

Level 2: $145,000.00 - $200,000.00

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Employees in Washington State accrue paid sick time in compliance with state and federal law. Company shuttles are offered to employees for roundtrip travel from select Seattle locations to the SpaceX Redmond office Monday to Friday.

ITAR REQUIREMENTS:

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.  

SpaceX is an Equal Opportunity Employer; employment with SpaceX is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Applicants wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to EEOCompliance@spacex.com. 

Source: SpaceX careers (Greenhouse)

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