Principal Platform Security Engineer - Cryptography & Systems Security

About the Role

We are seeking a Principal Platform Security Engineer to join our team at Anduril Industries. This remote position offers the opportunity to lead the charge in designing and implementing security solutions for our cutting-edge defense technology products. As a key player in our Platform Security Engineering (PSE) team, you will leverage your expertise in cryptography and systems security to shape the future of military capabilities.

What You'll Do

• Own the technical vision and architecture for platform security across Anduril's product ecosystem.
• Design cryptographic systems, protocols, and key management architectures for autonomous and robotic platforms operating in contested and disconnected environments.
• Lead the design of hardware root-of-trust architectures integrating TPMs, TEEs, HSMs, and secure boot across diverse embedded platforms.
• Drive the strategy for promoting business-line security implementations into shared, composable platform services.
• Serve as the senior technical authority for security architecture reviews across the organization, providing definitive guidance on cryptographic design, protocol security, and system hardening.
• Define security patterns, reference architectures, and engineering standards that enable teams across Anduril to build securely and independently.
• Mentor and develop senior engineers on the team, raising the bar for security engineering across the organization.
• Represent Anduril's security engineering capabilities to customers, partners, and auditors when deep technical credibility is required.

Requirements

• 12+ years of experience in software engineering, with significant depth in systems security and cryptography.
• Expert-level knowledge of cryptographic protocol design, including key management architectures, certificate systems, and cryptographic agility.
• Deep experience with hardware security: TPM, TEE, HSM, secure boot, and hardware root-of-trust design across multiple platform types.
• Proficient in two or more of: C++, Rust, Go.
• Experience designing security architectures for embedded, real-time, or robotic systems with constrained environments.
• Strong ability to communicate complex security concepts to engineering leadership, product teams, and external stakeholders.
• Eligible to obtain and maintain active U.S. Secret security clearance.

Nice to Have

• Experience with post-quantum cryptography, distributed key generation (DKG), or threshold cryptographic schemes.
• Background in defense, aerospace, or autonomous systems with exposure to FIPS 140, Common Criteria, or NSA CSfC requirements.
• Experience designing secure communication protocols for autonomous platforms or mesh networks.
• Deep knowledge of Linux kernel security, mandatory access controls (SELinux/AppArmor), and OS hardening at scale.

What We Offer

• Comprehensive medical, dental, and vision plans at little to no cost to you.
• Generous time off with highly competitive PTO plans and a holiday hiatus in December.
• Caregiver & Wellness Leave available for family care or personal medical needs.
• Access to free mental health resources 24/7, including therapy and life coaching.
• Annual reimbursement for professional development.
• Relocation assistance available depending on role eligibility.