42dot · Sunnyvale, United States
Skills: Python, CI/CD
WE ARE LOOKING FOR THE BEST ABOUT US 42dot is a mobility AI company committed to solving mobility challenges with software and AI. As the Global Software Center of Hyundai Motor Group, 42dot pioneers the future of mobility by advancing the development of software-defined vehicles. We develop safety-first, user-centric software-defined vehicle technologies that deliver the latest performance through continuous updates like smartphones. By advancing software and AI technology, 42dot envisions a world where everything is connected and moves autonomously through a self-managing urban transportation operating system. ABOUT THE ROLE As a Sr. Staff Firmware Security Architect, you will own the security architecture of our next-generation Software-Defined Vehicle (SDV) real-time platform end to end: the secure boot chain, the Uptane-based over-the-air update trust model, vehicle-lifecycle key management, secure diagnostics and debug, and the ISO/SAE 21434 work products that carry all of it through UNECE R155/R156 type approval. This is a builder's architect role: you decide what the boot chain and update client must do, prove it is enough, hold review authority over the engineers who implement it, and defend the design to OEM security engineers and third-party assessors. Responsibilities - Chain-of-Trust Architecture: Define the multi-stage secure boot sequence — boot ROM handoff, immutable and mutable bootloader stages, signature verification anchored in the hardware security engine, anti-rollback, A/B activation, recovery and fail-safe boot policy — with boot-time budgets that respect the platform's safety timing. - Uptane Trust Model: Own the on-device Uptane security design: the online Director and offline-keyed Image repositories, metadata and role structure (Root, Timestamp, Snapshot, Targets), signature thresholds and key rotation, full-verification Primary versus partial-verification Secondary policy, and defenses against rollback, freeze, replay and mix-and-match a…
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