Skip to content

SpaceX

Sr. RAN Software Engineer (Starlink Mobile)

SpaceX is hiring a Sr. RAN Software Engineer (Starlink Mobile) in Palo Alto, United States. It pays $175k-$280k a year and Level rates it ; you can apply on SpaceX.

Level's read on this job

  • Little AI ●○○○ is how Level rates this software engineer role: aI is not part of the work.
  • Pay on this posting starts 5% higher than the typical software engineer posting on Level.
  • The posting mentions Python, C and Qxdm among its tools and skills.
  • Level classes it as a senior role.
  • SpaceX has 2,800+ other open roles on Level.

AI in this role

Lead validation and optimization of 4G/5G RAN software protocol stacks and CI/CD test automation for the Starlink Mobile network.

PythonCQxdmXcal

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.

SR. RAN SOFTWARE 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 Sr. RAN Software Engineer on the Starlink Mobile program, you will lead the validation and optimization of the 4G/5G RAN software protocol stack. This role requires strong software engineering skills to build scalable test automation frameworks and work directly with other software developers to triage and resolve complex 4G/5G protocol stack software issues.

RESPONSIBILITIES:

  • Lead the design, development, and maintenance of CI/CD test automation 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 resolves issues and drive feature improvements
  • Build software tools and data pipelines to analyze RAN performance and optimize eNB/gNB parameters to improve network KPIs
  • Manage and prioritize network issues while collaborating closely with development teams to drive resolution
  • Troubleshoot and maintain RAN lab infrastructure in collaboration with partner teams

BASIC QUALIFICATIONS:

  • Bachelor’s degree in a STEM discipline
  • 5+ years of Python/C/C++ coding experience
  • 5+ years of experience developing, executing, and managing automated LTE/5G-NR test cases (including test planning and results tracking)

PREFERRED SKILLS AND EXPERIENCE:

  • In-depth knowledge of 3GPP specifications and R17+ RAN features
  • Experience with user equipment (UE) log analysis and associated software tools (QXDM/XCAL)
  • Experience developing test automation frameworks or CI/CD pipelines
  • Strong understanding of LTE and 5G-NR protocols with hands-on experience resolving software issues at the PHY, MAC, and RRC layers
  • Experience supporting products through the full release cycle including commercial deployment
  • Strong skills in debugging and performance optimization; exceptional analytical skills and engineering fundamentals

COMPENSATION AND BENEFITS:

Pay Range:
Level 3: $175,000.00 - $280,000.00


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 accrue paid sick leave pursuant to Company policy which satisfies or exceeds the accrual, carryover, and use requirements of the law.

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.

How we rate this

Sr. RAN Software Engineer (Starlink Mobile) at SpaceX rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

PythonCQxdmXcal

Also common in software engineer jobs at this level

Pay

This job starts at
$175k
Typical software engineer job
$167k

This posting starts 5% above the typical software engineer job. See software engineer jobs

Questions you could be asked

  1. What's a project where you used Python hands-on?
  2. Walk me through how you've used C in your day-to-day work.
  3. What are the limits of Qxdm that you've run into, and how did you work around them?
  4. What's a project where you used Xcal hands-on?

Adapt your resume

  • List these exact terms on your resume: Python, C, Qxdm, and Xcal. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

Get your CV reviewed before you apply

Send your CV and the role you want next. Your review arrives by email within 3 days.

Get new software engineer jobs by email

One email a week, each job rated for how much AI is in the work. No recruiter spam, unsubscribe in one click.

Free.

Similar roles

Software Engineering roles that involve little AI, at other companies.

What kind of AI work fits you?

Answer 12 practical questions in about three minutes. Get a simple profile, the work it points to, and live roles to explore next.

Find my next step

More jobs at SpaceX

More software engineer jobs

Related searches

Same AI level

Jobs by city