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Job Description
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.
Senior Product Security Engineer
As a Senior Product Security Engineer at Astranis, you are a software engineer with a deep specialization in security, responsible for designing and building secure systems with a focus on areas like cryptography, Public Key Infrastructure (PKI) and zero trust architectures. Your role will involve evaluating processes, operating systems, and applications from a security-first engineering standpoint. While your primary role is to build secure software, your expertise will be used to identify vulnerabilities, conduct risk analyses, and lead security reviews.
Role
- Audit embedded devices to identify security vulnerabilities and weaknesses.
- Lead security initiatives and serve as a point of contact for secure software development.
- Conduct security research and risk assessments on our products, focusing on cryptographic implementations and protocols.
- Provide expert guidance and support in the implementation of security measures.
- Collaborate with vendors, partners, and other Astranis software engineers to implement effective remediation strategies.
- Perform risk assessments to identify and prioritize threats.
- Lead design teams in developing secure systems and ensure our products are implemented to a high security standard.
- Collaborate with software development teams to design and implement technical solutions that address identified risks.
Requirements
- 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 for embedded devices.
- Security expertise as a software specialist in one or more of: C, C++, ARM, cryptography, PKI.
- Proven experience in threat modeling and security assessments, with commensurate ability in offensive security.
- Expert proficiency in software development, including auditing and writing secure code.
- Strong knowledge of security best practices and frameworks.
- Strong communication skills, both written and spoken.
- Ability to work collaboratively within a team environment.
Job Details
- Department
- Other
- Category
- Business & Finance
- Location
- San Francisco
- Last updated
- Dec 22, 2025, 11:45 PM
About Astranis
Part of the growing space industry ecosystem pushing humanity toward interplanetary exploration.
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