Firmware Engineer

DensityAI

$250K — $370K *
Telecommunications & Hardware
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Strong proficiency in C and assembly for embedded systems; experience with bare-metal or RTOS on ARM (or similar)
  • 5+ years of platform or system firmware development, including boot ROM, BMC/embedded controllers, and device firmware
  • Hands-on experience with secure boot, hardware root of trust, code signing, and secure updates
  • Knowledge of power-management firmware, including power sequencing, PMIC control, and thermal telemetry
  • Familiarity with platform monitoring and debugging, including sensor telemetry and JTAG
  • Ability to work at the hardware/software boundary, reading datasheets and using lab equipment
  • Optional experience with Rust in firmware development, and knowledge of OpenBMC, UEFI, applied cryptography, and supply-chain security standards

Responsibilities

  • Develop and maintain platform firmware across all layers: boot ROM, BMC, and device firmware
  • Implement secure boot processes and hardware root of trust measures
  • Oversee power management systems including sequencing and thermal protection
  • Create monitoring and telemetry systems for platform health and observability
  • Manage debug processes and post-silicon bring-up activities
  • Collaborate with hardware, architecture, and software teams on firmware interface design
  • Enhance tool flows to streamline development and enhance review efficiency

Benefits

  • Equity grant provided per company guidelines
  • Comprehensive medical, dental, and vision coverage
  • 401(k) retirement plan
  • Standard paid time off (PTO) policies
  • Visa sponsorship available for qualified candidates
  • Immigration support provided for securing or transferring work authorization
Full Job Description
About the role

Own the platform firmware that brings our AI accelerator systems to life and keeps them secure, healthy, and observable - from secure boot and the hardware root of trust, through embedded-controller/BMC and device firmware, to power management, telemetry, and the debug infrastructure that keeps the platform running at scale.
What You'll Do
  • Platform firmware - develop firmware across the stack: boot ROM/bootloaders, embedded controllers / BMC, and device firmware for our accelerator silicon and systems
  • Secure boot & root of trust - measured/verified boot, code signing and chain-of-trust, authenticated firmware update (anti-rollback), and secure debug
  • Power management - power sequencing, PMIC/voltage-rail control, DVFS, and power/thermal protection and budgeting
  • Monitoring & telemetry - sensors, health/RAS, error logging, and platform management/observability interfaces
  • Debug & bring-up - JTAG/scan and debug infrastructure; board and post-silicon bring-up
  • Partner with silicon/architecture, hardware/board, and software teams on firmware interfaces, threat modeling, and HW/SW co-design
  • Assisted tool flows to accelerate development and review
What We're Looking For
  • Strong C and assembly for embedded/firmware; bare-metal or RTOS on ARM (or similar)
  • 5+ years developing platform/system firmware - boot, BMC/embedded controllers, and device firmware
  • Hands-on with secure boot / hardware root of trust, code signing, and secure/anti-rollback update
  • Power-management firmware - power sequencing, PMIC/voltage regulators, DVFS, and thermal/power telemetry
  • Platform monitoring & debug - sensor/telemetry, RAS/error handling, JTAG/debug, and management interfaces
  • Comfort at the HW/SW boundary - reading datasheets/specs, lab bring-up, scopes/logic analyzers
  • (Optional) Rust for firmware/embedded development; OpenBMC, UEFI/coreboot; accelerator/GPU/server firmware; applied crypto & key management; TEE (TrustZone); side-channel/fault-injection awareness; standards (NIST SP 800-193, FIPS 140-3); SBOM/supply-chain security


Compensation

Final offers depend on level, location, and skills relevant to the role. Additional compensation: equity grant per company guidelines; medical / dental / vision; 401(k); standard PTO.
Visa Sponsorship

DensityAI sponsors qualified candidates for H-1B, O-1, TN, E-3, and other employment-based visas, and we welcome applicants on F-1 OPT and STEM-OPT. Work authorization is required at start; we provide immigration support to secure or transfer status.
Export Controls

Aspects of this role may involve access to information subject to U.S. export controls (EAR/ITAR). We may discuss licensing or scope adjustments during the interview.

Full compensation packages are based on candidate experience and relevant certifications.

California pay range

$250,000-$370,000 USD

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