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Sr. Staff Firmware Engineer (Embedded OTA & Uptane Security Platform)42dot • Sunnyvale, California, United States
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Sr. Staff Firmware Engineer (Embedded OTA & Uptane Security Platform)

42dot
  • US
    Sunnyvale, California, United States
  • US
    Sunnyvale, California, United States
Jetzt Bewerben

Über

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 Engineer, you will architect the next‑generation, on‑device Over‑the‑Air (OTA) update framework for our Software‑Defined Vehicle (SDV) platform. This is a pure firmware role focusing on high availability, extreme durability, and uncompromising backend‑to‑device cryptographic security natively built on the Uptane standard. You will design the client‑side embedded software responsible for safely receiving, orchestrating, and validating large‑scale software updates across a distributed network of control units. Your mission is to develop a zero‑downtime, compromise‑resilient update platform that guarantees vehicles never experience a “bricked” state or partial‑update corruption, while acting as the definitive technical bridge between embedded vehicle subsystems and our cloud infrastructure team.
Responsibilities
Uptane Architecture Ownership: Lead the on‑device design and implementation of an automotive‑grade Uptane client framework.
Establish distinct software verification paths for high‑performance Primary ECUs acting as security gateways and resource‑constrained edge Secondary ECUs.
Compromise‑Resilient Security: Implement and maintain Uptane’s multi‑repository validation systems. Secure the in‑vehicle delivery pipeline by requiring cryptographic verification from both an automated backend (Director repository) and a secure, offline‑keyed asset vault (Image repository) to prevent key compromise and mix‑and‑match attacks.
Metadata Role Verification: Develop low‑level firmware state machines to securely parse and validate Uptane‑structured cryptographic payloads, verifying signatures and thresholds across separate organizational roles (Root, Timestamp, Snapshot, and Targets).
Qualifications
End‑to‑End Update Orchestration: Oversee complex vehicle‑level software “bundles.” Synchronize dependency tracking, resolve software compatibility matrices across multiple internal networks, and ensure atomic execution during the flashing cycle.
On‑Device & Cloud Integration: Act as the core technical bridge to the Cloud/Infrastructure team.
Co‑design optimal edge‑to‑cloud interfaces, secure time‑attestation protocols, vehicle version manifests, and custom Uptane transport layer profiles (POUFs).
Preferred Qualifications
High‑Durability Partition & Memory Architecture: Optimize background payload streaming using asymmetric A/B slot update switching, dual‑bank execution, and fast runtime validation fallback loops.
Bandwidth & Storage Optimization: Implement advanced on‑device patching algorithms and delta‑compression engines to maximize internal flash lifespan (eMMC, UFS, QSPI) and minimize bus bandwidth.
Deterministic Firmware Development: Write high‑performance, safety‑critical code using C for bare‑metal systems, custom bootloaders, and RTOS kernels. Utilize Python exclusively for host‑side tooling, secure payload wrapping.
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  • Sunnyvale, California, United States

Sprachkenntnisse

  • English
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