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Senior Product Security Engineer (Applications)

Astranis· Engineering
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San Francisco, CA$180k - $285kFull-timePosted 1mo ago

About the role

Senior Product Security Engineer role focused on securing software and embedded components powering Astranis systems, with emphasis on product/application security and collaboration across software, firmware, hardware, and systems teams.

Responsibilities

  • Lead threat modeling, architecture reviews, and design-level risk assessments for both application and embedded system components.

Qualifications

  • 5+ years of experience in software engineering with a focus on security.
  • Strong investigative, analytical problem-solving skills and attention to detail.
  • Experience with secure architecture design and threat modeling for complex systems (including both web services and IoT/embedded devices).
  • Software development and security expertise in both high-level languages (e.g., Python) and low-level languages (e.g., C, C++).
  • Experience with security best practices for web applications (OWASP Top 10) and familiarity with embedded security concepts (e.g., secure boot, JTAG, UART).
  • Proven ability in auditing code for security flaws across different technology stacks.
  • Strong knowledge of security best practices, applied cryptography, and security frameworks.
  • Strong communication skills, with the ability to discuss security with both software and hardware engineers.
  • Ability to work collaboratively within a multi-disciplinary team environment.

Skills

Required:Threat modelingSecure code reviewCryptographic evaluationSecurity of embedded systems

Benefits

  • equity
  • robust benefits including high-quality company-subsidized healthcare, disability and life insurance, 401(k) retirement planning, flexible PTO, and free on-site catered meals.
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Astranis

Advanced satellites for high orbits.

Astranis 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 $750 million from some of the world’s best investors, from Andreessen Horowitz to Blackrock, and Fidelity, and employs a team of 450 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA.

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