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Sr. Security Software Engineer (Starlink)

SpaceX

$168,000 - $230,000
Aug 27, 2025
Redmond, WA, US
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SpaceX is looking to enhance the security of its Starlink internet system, which involves a large satellite constellation and user-facing hardware. The company needs to ensure the reliability and security of its software across all components to protect against adversaries and provide secure internet access.

Requirements

  • Experience with one or more software development languages (i.e. Python, C++, Golang)
  • Experience designing and implementing security solutions for operating systems, distributed systems, or other enterprise/large-scale infrastructure
  • Experience contributing security improvements to complex systems
  • Experience working with special purpose security hardware such as Trusted Platform Modules (TPMs) and Hardware Security Modules (HSMs)
  • Fundamental understanding of network protocols; including the TCP/IP stack as well as UDP based protocols
  • Experienced in navigating large, complex, interactive systems

Responsibilities

  • Design and build security infrastructure for Starlink, including cryptographic services and other security-critical services
  • Develop security features for Starlink systems, including our router, dish, gateways, and satellites
  • Design security into factory processes and provide network services in support of this
  • Maintain existing production systems and improve security posture via both direct implementation and recommendations to other teams
  • Build prototypes and help identify, design, and test security improvements
  • Further our mission of providing secure and reliable Internet to underserved communities

Other

  • Being flexible, communicating clearly, and establishing and maintaining productive working relationships with other engineering teams are paramount to success.
  • If you are passionate about building quality products, love the challenges of outsmarting adversaries, and want to make an impact on an inter-planetary scale, then you will fit right in.
  • Flexibility, communicating clearly, and establishing and maintaining productive working relationships with other engineering teams
  • Excellent communication skills, both written and verbal
  • Ability to work both independently and in a team
  • Demonstrated ability to deal with ambiguity and to learn new technologies quickly
  • Must be willing to work extended hours and weekends as needed