42dot
Sr. Staff Firmware Engineer (Secure Boot & Real Time Platform)
Sunnyvale, United States · Staff+
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
$32,134 more — $221,374 — moves this role to Level III and 3 lottery entries. That figure is inside the range the employer already advertised.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $221,374 would place this position at wage Level III. That figure is within the posted range, and I'd like to target it. This role classifies under "Software Developers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · San Jose-Sunnyvale-Santa Clara, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
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About the role
- This is a pure embedded C engineering role focused on high availability, extreme durability, and fail-safe robustness.
Responsibilities
- Architect the Secure Boot-Chain: Design and optimize the multi-stage secure boot sequence-from immutable mask ROM and Primary Bootloaders (PBL) to Secondary Bootloaders (SBL/U-Boot)-ensuring execution integrity.
- Hardware-Enforced Isolation: Implement and configure advanced hardware firewall technologies (such as NXP xRDC / XRDC4) and core-level Memory Protection Units (MPUs).
- Manage Cohort/Domain IDs, Master Domain Assignment Controllers (MDAC), and Peripheral Access Controllers (PAC) to achieve strict resource isolation, peripheral partitioning, and fault domain segregation.
- Fail-Safe A/B Update Layouts: Implement atomic A/B firmware slot update schemes and dual-bank partition architectures.
- Design the low-level state machines for partition switching, background flashing, and automatic runtime fallback loops.
- Staff Firmware Engineer, you will design and implement the mission-critical secure boot-chain, flash partition architecture, and hardware-enforced isolation layers for our next-generation Software-Defined Vehicle (SDV) platform.
Requirements
- All documents must be submitted in PDF format and under 30MB in size.
- Hardware Root of Trust & Security: Configure hardware-based cryptographic enclaves (HSMs, TPMs, or ARM TrustZone).
- Develop firmware controls for secure key storage, device attestation, and anti-rollback protection via eFuses or secure flash memory.
- High-Performance Inter-Core Communication: Design, implement, and optimize low-latency Inter-Process Communication (IPC) and Inter-Core Communication (ICC) mechanisms utilizing shared memory architectures, hardware semaphores, and zero-copy data paths.
- High-Durability Storage Systems: Package and deploy low-level block drivers and fault-tolerant flash file systems (e.g., eMMC, UFS, QSPI).
- Implement advanced wear-leveling and delta compression techniques to maximize flash lifespan and minimize bus bandwidth.
Nice to have
- Pure Firmware Development: Write high-performance, deterministic embedded C tailored for resource-constrained environments, ensuring freedom from interference (FFI) and tight control over task scheduling.
- Defensive Engineering: Protect low-level execution paths against physical and electrical attack vectors, including voltage manipulation, clock glitching, and unauthorized side-channel access.
- Application Review - Coding Test - 1st interview - 2nd interview - Offer Negotiation - Hiring
- The screening procedures may vary depending on the position, schedule, or other circumstances.
- You will be individually notified of the screening schedule and results via the email address provided in your application.
- Application Review
- Offer Negotiation
Compensation
- $189,240 - $266,760
- 42dot does not accept unsolicited resumes and will not pay fees for any such submissions.
Company info
- 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.
Equal opportunity
- Statement
- 42dot is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.
- ※ Please review the following information before applying.
- How to work in 42dot, About 42dot Way → https://42dot.ai/careers/way
This listing is sourced directly from 42dot's careers page and normalized into a canonical job model.