Principal RF Software Engineer (Starshield)
- Salary
- $210,000 - $340,000
- Level
- Principal
Not stated in the posting: work type, visa.
Open. First seen 6 August 2026.
About the role
SpaceX's standard text
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.
PRINCIPAL RF SOFTWARE ENGINEER (STARSHIELD)
Starshield leverages SpaceX’s Starlink technology and launch capability to support national security efforts. While Starlink is designed for consumer and commercial use, Starshield is designed for government use, with an initial focus on earth observation, communications, and hosted payloads. As a RF software engineer on the Starshield team, you will be working on advanced development programs in support of US National Security.
You will work with a team of RF engineers, DSP engineers, software engineers, hardware engineers and end users to design and build RF capabilities for proliferated communications and remote sensing in low earth orbit. You will work in a highly collaborative and fast-paced environment, where we are exploring unsolved problems and applying the SpaceX mindset of iterating rapidly to go from design and demo to operational capability at lightning pace.
RESPONSIBILITIES:
- Drive program-level decisions on RF system designs
- Research novel solutions for unique large-scale satellite RF systems
- Design, build, validate, and automate RF test benches for full characterization of custom RF designs, often involving vector network analyzers (VNA), vector signal generators (VSG), vector signal analyzers (VSA), spectrum analyzers, load pulls, RF power meters, high-speed oscilloscopes, and other common lab equipment
- Design and build modular, scalable RF test infrastructure and test automation sequences in Python and C++ to support design validation, qualification, and production
- Work in close collaboration with hardware, FPGA, DSP, and software engineers to design and validate RF systems
- Create electromagnetic simulation models of hardware to design and evaluate performance
BASIC QUALIFICATIONS:
- Bachelor’s degree in electrical engineering or other engineering discipline
- 8+ years of professional development experience in C/C++ or Python
- Experience with radio test equipment such as spectrum analyzers, vector signal analyzers, vector signal generators, and network analyzers
- RF experience with antennas or communication systems
PREFERRED SKILLS AND EXPERIENCE:
- Master's degree in electrical engineering or other engineering discipline
- Experience with testing both active and passive RF devices such as filters, amplifiers, mixers, and upconverters/downconverters
- Experience with common RF concepts such as gain, linearity, P1dB, ACLR, EVM, PAE, S-parameters, and input/output matching
- Experience with software design principles, software architecture, design patterns, and unit/integration testing methodology
- Experience with environmental test methodologies and equipment such as thermal chambers and temperature forcing systems
- Experience troubleshooting interactions between software and hardware such as network devices and lab 1 instrumentation
- Experience using Windows and Linux operating systems
- Experience with configuration management and version control software
- Ability to obtain and maintain an active Top Secret or Top Secret SCI clearance
ADDITIONAL REQUIREMENTS:
- An active clearance may provide the opportunity for you to work on sensitive SpaceX missions; if so, you will be subject to pre-employment drug and random drug and alcohol testing
- Must be willing to work extended hours and weekends as needed
COMPENSATION AND BENEFITS:
Pay Range:
Principal: $210,000.00 - $340,000.00
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.
Those with an active clearance will receive a 10% differential, up to an additional $20,000 annually, once officially briefed into a classified program.
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's standard text
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.
What this role asks for
Standard for software engineering roles
Python
Common in software engineering postings at any company.
84% of this description is written for the role. The rest is SpaceX's standard text, folded away below.
Read against SpaceX's other open postings on this site.
The team: Starshield Satellite Engineering HIRES STEADILY
This role is one of 43 open in Starshield Satellite Engineering. 4 were posted in the last 30 days and the oldest in January: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (31 of 43), C++ (23 of 43), FPGA (18 of 43), C (14 of 43), Linux (13 of 43), MATLAB (13 of 43), PCB Design (8 of 43)
OTHER ROLES ON THIS TEAM
- Sr. Optical Engineer (Starshield) posted Oct 13
- Embedded Software Engineer, RF Payloads (Starshield) posted Sep 28
- Electric Propulsion Engineer, Avionics (Starshield) posted Sep 23
- Principal RFIC Engineer (Starshield Silicon) posted Sep 22
- New Graduate Engineer, Mechanical Design (Starshield) posted Sep 10
- GNC Engineer, ADCS (Starshield) posted Aug 31
- GNC Engineer, Phased Array Devices (Starshield) posted Aug 31
- Software Engineer, Tracking (Starshield) posted Aug 31
- Principal RFIC Engineer (Starshield Silicon) posted Aug 28
- Optical Engineer (Starshield) posted Aug 17
- Hardware Reliability Engineer, Components (Starshield) posted Aug 17
- PCB Designer (Starshield) posted Aug 10
- RF Engineer (Starshield) posted Aug 6
- Electrical Design Engineer (Starshield) posted Aug 6
- Reliability Engineer, Satellite Systems (Starshield) posted Jul 28
- Electric Propulsion Engineer, Mechanical (Starshield) posted Jul 28
- Harness Engineering Specialist (Starshield) posted Jul 16
- Harness Design Engineer (Starshield) posted Jul 15
- Sr. RFIC Layout Designer (Starshield Silicon) posted Jul 14
- RFIC Layout Designer (Starshield Silicon) posted Jul 14
- Sr. Design Criteria Engineer (Starshield) posted Jun 30
- Software Engineer, Vehicle Operations (Starshield) posted Jun 26
- Sr. RF Software Engineer (Starshield) posted Jun 2
- PCB Reliability Engineer (Starshield) posted May 28
- Sr. RFIC Engineer (Starshield) posted May 27
- GNC Engineer, Fleet Management (Starshield) posted May 26
- GNC Engineer, Beam Planning (Starshield) posted May 26
- Principal RF Engineer (Starshield) posted May 20
- Ground Network Specialist (Starshield) posted May 19
- RFIC Engineer (Starshield Silicon) posted May 14
- Manager, ASIC Design Engineering (Starshield Silicon) posted May 1
- Sr. RF Engineer (Starshield) posted Apr 24
- RF Software Engineer (Starshield) posted Apr 22
- Sr. Electrical Design Engineer (Starshield) posted Apr 22
- Lead PCB Designer (Starshield) posted Apr 22
- Antenna Engineer (Starshield) posted Apr 17
- Principal ASIC Design Engineer (Starshield) posted Apr 3
- Sr. ASIC Design Engineer (Starshield) posted Apr 3
- Design Criteria Engineer (Starshield) posted Apr 3
- New Graduate Engineer, Electrical (Starshield) posted Apr 1
- Sr. PCB Designer posted Mar 6
- GNC Engineer, ADCS (Starshield) posted Jan 31
From the team and dates on SpaceX's own job board.
Posting history
Reposted once since 7 March 2026: a posting for this role in Hawthorne, CA was taken down and the role was posted again.
- 6 August 2026 – open (this posting)
- 7 March 2026 – closed 24 July 2026
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