Senior Product Security Engineer (Applications) at AstranisAstranis · San Francisco

Workplace: Hybrid, On-site

Posted: 2026-11-03

Skills: PythonAstranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. Today Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe – large enterprises, sovereign governments, and the US military. With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts. Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization. Astranis has raised over $1.2 billion from some of the world’s best investors, including Andreessen Horowitz, Baillie Gifford, Blackrock, Fidelity, Franklin Templeton, and Snowpoint, and employs a team of 500 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA. Senior Product Security Engineer As a Senior Product Security Engineer, you will help secure both the software and embedded components that power our systems. This hybrid role focuses primarily on product/application security while contributing to embedded security reviews where software and hardware intersect. You will guide secure design, evaluate critical components, and partner closely with engineering teams across the stack to ensure our products are secure by default. This role does not expect deep hardware hacking but requires a broad security mindset to provide expertise where embedded systems and software meet. Role Lead threat modeling, architecture reviews, and design-level risk assessments for both application and embedded system components. Conduct secure code reviews for critical modules in Python and C/C++, supporting secure coding practices across all engineering teams. Evaluate cryptographic usage, authentication/authorization flows, and protocol security across the stack. Identify and prioritize vulnerabilities in…Sign in to see the original postingBrowse more developer jobs on RoleBurst