BMC Firmware Engineer

MatX•Mountain View, CA

21h•Hybrid

About The Position

MatX is building best-in-class silicon for high-performance and sustainable GenAI. The MatX host system software team owns everything that makes our AI silicon and systems usable, including the BMC/OpenBMC firmware stack. We are seeking a senior BMC firmware engineer to own the OpenBMC stack for our AI compute boards, from first board bring-up through high-volume datacenter deployment. This role involves broad ownership and direct influence on both firmware architecture and board design.

Requirements

8+ years of experience in BMC firmware and embedded Linux development.
Hands-on OpenBMC experience from board bring-up through production.
Strong C/C++ and solid Python or Bash.
Deep Linux fundamentals spanning user space, the driver model, and kernel internals.
Proficient with Yocto/OpenEmbedded, U-Boot, and device trees.
Experience with BMC SoCs such as ASPEED or Nuvoton.
Board bring-up experience with low-level buses and interfaces: I2C/I3C, SPI, eSPI/LPC, SMBus, UART, PCIe, JTAG.
Working knowledge of platform management standards: IPMI/KCS, Redfish, and DMTF protocols (MCTP, PLDM, SPDM).
Comfortable operating with high autonomy on a small team, collaborating closely with hardware, silicon, security, and systems engineers.
Excellent technical communication and documentation skills.

Nice To Haves

Experience with thermal/power management, firmware update mechanisms, and firmware security (secure boot, root of trust, attestation) is a strong plus.
Contributions to OpenBMC, the Linux kernel, or related open-source/OCP/DMTF efforts are a plus.
Experience with pre-silicon validation environments (simulation, emulation, FPGA prototyping).
First-silicon or new-platform bring-up experience for accelerators, NICs, or SoCs.
Familiarity with SR-IOV, dma-buf, peer-to-peer PCIe, or VFIO.
Kernel performance tuning and profiling experience (perf, ftrace, eBPF).
Exposure to BMC/host interaction paths (e.g., in-band vs. out-of-band device access, sideband interfaces such as I2C/SMBus).
Rust for systems programming.

Responsibilities

Design, build, and ship OpenBMC firmware for custom compute boards, managing in-house AI ASICs from early bring-up through production deployment.
Own the Yocto/OpenEmbedded-based build, board port, and device trees (U-Boot and Linux kernel) for the BMC SoC.
Develop platform manageability features: sensor and telemetry infrastructure, inventory, event logging, fan/thermal/power management (PMBus), and RAS for AI ASICs and board components.
Build management interfaces on industry standards like Redfish, IPMI, and DMTF protocols (MCTP, PLDM, SPDM).
Implement firmware update, secure boot, and attestation flows in partnership with silicon and security teams.
Write and bring up Linux kernel drivers and D-Bus/sdbusplus services; debug across the hardware/firmware boundary.
Influence board and ASIC design by reviewing schematics and hardware architecture from a manageability and debuggability perspective.
Upstream improvements to the OpenBMC community where appropriate.
Build CI, test automation, and tooling to maintain firmware quality.

Benefits

4 weeks PTO (accrued)
12 company Holidays
Up to 3 weeks remote work
Company-subsidized Medical (Kaiser or Anthem) for employees & dependents
Guardian Dental and Vision insurances for employee & dependents
Life insurance (employee only)
HSA and FSA offerings via Lively
Roth IRA/ 401K (or both) retirement plans with up to 5% company contribution to 401K
100% company-paid life insurance (up to $300K)
Long-term disability insurances
$1500 Professional Development Budget (per year)
Onsite team lunch & dinner Monday - Friday
Company Uber account for commute or reimbursement for train rides
$50/mo for perks
$35/mo for cellular
$40/mo for wifi
100% paid mental health benefit via SpringHealth and Guardian EAP
Up to 12 weeks paid parental leave
10 weeks pregnancy disability leave
Flexible return-to-work hours
Benepass reproductive health & parental benefit
Up to $20K/month in AI Resources
Dedicated internal AI Tooling Team