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Sr. Application Security Engineer

SpaceXSeattle, WAL6 LeadSeptember 15th, 2026
Overview In this role you strengthen the security of Starlink’s internet infrastructure and applications, safeguarding customer data as SpaceX scales its satellite network. You’ll provide early-stage design feedback to developers, build security infrastructure, and guide cross-functional teams to reduce risk. You’ll also oversee bug bounty responses, shaping secure software at interplanetary scale. This position combines hands-on security work with influence across Starlink’s product and platform teams. Compensation / Benefitsmedical, vision, and dental coverage401(k) planstock options and long-term incentivespaid parental leavevacation 3 weeks10+ paid holidays per year ResponsibilitiesDesign and build security infrastructure for Starlink.com and the Starlink mobile applicationContinually audit and assess Starlink Internet infrastructure for security issuesIncorporate security into software processes and mentor developers on secure practicesMonitor bug bounty submissions and coordinate responses to valid reportsPrototype and test security improvements and identify effective solutionsAdvance the mission of providing secure and reliable Internet to underserved communities Key requirementsBachelor in Computer Science or another STEM discipline and 5+ years of security software development experience, or 7+ years without a degreeExperience with one or more programming languages (Python, C++, Golang, C#)Experience designing and implementing security solutions for web and/or mobile applicationsClear communicationCross-team collaborationAbility to work independently and in a teamWeb and mobile application penetration testingWeb/mobile application developmentDefending production infrastructure