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Security Software Engineer (Starshield)

SpaceX

$130,000 - $175,000
Dec 26, 2025
Washington, DC, US
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SpaceX is looking to solve the business and technical problem of building highly reliable in-space mesh networks, designing secure systems to guarantee access to space, designing next-gen communication and sensing software, and more for national security efforts through its Starshield program, leveraging Starlink technology and launch capability.

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 Starshield, including cryptographic services and other security-critical services
  • Develop security features for Starshield 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

Other

  • Bachelor's degree in computer science or another STEM discipline; OR 2+ years of professional experience in security software development in lieu of a degree
  • 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
  • This position requires successfully obtaining and maintaining a Top Secret Security Clearance as a condition of employment.