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Salary: USD 180,000 - 285,000 / annual
Astranis builds advanced satellites for high orbits, serving large enterprises, sovereign governments, and the US military with dedicated, secure networks. The company operates five satellites on orbit with a $1B+ commercial contract backlog, backed by $750M in funding from top-tier investors including Andreessen Horowitz, Blackrock, and Fidelity.
As a Senior Product Security Engineer, you will secure both software and embedded components across Astranis's satellite systems. This hybrid role focuses primarily on application security while contributing to embedded security reviews at the software-hardware intersection. You will guide secure design practices, evaluate critical components, and partner with engineering teams across the full stack to ensure products are secure by default.
Key responsibilities include:
- Lead threat modeling, architecture reviews, and design-level risk assessments for 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 software and firmware; partner with developers on remediation strategies
- Participate in security assessments of embedded devices, especially where software interfaces with hardware
- Provide security input on secure boot, firmware update integrity, and device identity mechanisms
- Partner with software, firmware, hardware, and systems teams to implement consistent, secure solutions
Required qualifications:
- 5+ years of software engineering experience with a focus on security
- Strong investigative and analytical problem-solving skills with attention to detail
- Experience with secure architecture design and threat modeling for complex systems (web services and IoT/embedded devices)
- Software development and security expertise in both high-level (Python) and low-level (C, C++) languages
- Experience with web application security best practices (OWASP Top 10) and embedded security concepts (secure boot, JTAG, UART)
- Proven ability auditing code for security flaws across different technology stacks
- Strong knowledge of security best practices, applied cryptography, and security frameworks
- Excellent communication skills to discuss security with both software and hardware engineers
- Ability to work collaboratively in multi-disciplinary team environments
Compensation includes base salary, significant equity via stock options, company-subsidized healthcare, disability and life insurance, 401(k) retirement planning, flexible PTO, and on-site catered meals. U.S. citizenship, lawful permanent residency, or refugee/asylee status required to comply with space technology export regulations.
