BMC Firmware Engineer

System Software EngineerMatX's mission is to make the world's best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. MatX is seeking System Software Engineer to join our team as we create best-in-class silicon for high-performance and sustainable GenAI. Successful candidates for these roles will be responsible for delivering performant and functionally accurate silicon for MatX products across compute, memory management. High-speed connectivity and other key technologies.The MatX host system software team owns everything that makes our AI silicon and systems usable: from Linux kernel drivers up through node and cluster management. The team also co-owns the BMC/OpenBMC firmware stack, with dedicated firmware engineers, so host software and out-of-band management are designed together rather than bolted together. We're looking for self-driven engineers who can take a hardware spec and a register map and just start building — prototype drivers, low-level utilities that talk directly to the chip, daemons, and tooling — with minimal hand-holding. Each engineer on this team has a primary focus area, but ownership of overlapping components is shared, and you should expect (and want) to venture across the stack.Our BMC firmware stack, built on OpenBMC, is the nervous system of our platform: it handles bring-up, telemetry, thermal and power management, firmware updates, and platform security for every board we ship. 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. You will be one of the first engineers on this effort, with broad ownership and direct influence on both firmware architecture and board design.What You'll Do HereDesign, build, and ship OpenBMC firmware for our custom compute boards, where the BMC manages our in-house AI ASICs — from early bring-up on reference hardware through production deploymentOwn the Yocto/OpenEmbedded-based build, board port, and device trees (U-Boot and Linux kernel) for our BMC SoCDevelop platform manageability features: sensor and telemetry infrastructure, inventory, event logging, fan/thermal/power management (PMBus), and RAS for the AI ASICs and board components (CPLDs/FPGAs, PSUs, NICs, memory)Build management interfaces on industry standards — Redfish, IPMI, and DMTF protocols (MCTP, PLDM, SPDM) — including out-of-band management of our ASICsImplement firmware update, secure boot, and attestation flows in partnership with our silicon and security teamsWrite and bring up Linux kernel drivers and D-Bus/sdbusplus services; debug across the hardware/firmware boundary with schematics, logic analyzers, and JTAGInfluence board and ASIC design: review schematics and hardware architecture from a manageability and debuggability perspectiveUpstream improvements to the OpenBMC community where appropriate, and build the CI, test automation, and tooling that keep our firmware quality highWho You Are8+ years of experience in BMC firmware and embedded Linux development, with hands-on OpenBMC experience from board bring-up through productionStrong C/C++ and solid Python or Bash; deep Linux fundamentals spanning user space, the driver model, and kernel internalsProficient with Yocto/OpenEmbedded, U-Boot, and device trees; experience with BMC SoCs such as ASPEED or NuvotonBoard bring-up experience with low-level buses and interfaces: I2C/I3C, SPI, eSPI/LPC, SMBus, UART, PCIe, JTAGWorking knowledge of platform management standards: IPMI/KCS, Redfish, and DMTF protocols (MCTP, PLDM, SPDM)Experience with thermal/power management, firmware update mechanisms, and firmware security (secure boot, root of trust, attestation) is a strong plusContributions to OpenBMC, the Linux kernel, or related open-source/OCP/DMTF efforts are a plusComfortable operating with high autonomy on a small team, collaborating closely with hardware, silicon, security, and systems engineersExcellent technical communication and documentation skillsBonus Points If You HaveExperience with pre-silicon validation environments (simulation, emulation, FPGA prototyping)First-silicon or new-platform bring-up experience for accelerators, NICs, or SoCsFamiliarity with SR-IOV, dma-buf, peer-to-peer PCIe, or VFIOKernel 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 programmingCompensationThe US base salary for this full-time position is determined based on a variety of factors including role, experience, location, job-related skills, and relevant education and training. Career length is only a guideline for compensation.Early Career - $160,000 - $275,000 + equityMid Career - $175,000 - $400,000 + equitySenior Career - $250,000 - $600,000 + equityWhat We OfferTime off: 4 weeks PTO (accrued) + 12 company Holidays + up to 3 weeks remote workHealth: Company-subsidized Medical (Kaiser or Anthem) for employees & dependents, Guardian Dental and Vision insurances for employee & dependents, and life insurance (employee only), plus HSA and FSA offerings via Lively. See attached benefits 1-pager and full benefits guide for more info on benefits.Financial Wellbeing: Choose from Roth IRA/ 401K (or both) retirement plans with up to 5% company contribution to 401K (even if you don't contribute). Also, 100% company-paid life insurance (up to $300K) and long-term disability insurances.Professional Development: $1500 Professional Development Budget (per year)Team Meals: MatX provides onsite team lunch & dinner Monday - Friday, with your choice of ordering via WeBox, Specialty's or via our reimbursement systemCommute on Us: Commute on our company Uber account, or reimburse your train rides. Either way, we pay 100% for your daily commute.MatX E[x]tras: $50/mo to use on the perk you value mostCell & Internet Reimbursement: $35/mo for cellular and $40/mo for wifiMental Wellbeing: 100% paid mental health benefit via SpringHealth and Guardian EAP.Support to Parents: Up to 12 weeks paid parental leave regardless of path to parenthood, 10 weeks pregnancy disability leave, flexible return-to-work hours, and Benepass reproductive health & parental benefit.AI Resources: Up to $20K/month plus a dedicated internal AI Tooling Team to support your productivityAs part of our dedication to the diversity of our team and our focus on creating an inviting and inclusive work experience, MatX is committed to a policy of Equal Employment Opportunity and will not discriminate against an applicant or employee on the basis of race, color, religion, creed, national origin or ancestry, sex, gender, gender identity, gender expression, sexual orientation, age, physical or mental disability, medical condition, marital/domestic partner status, military and veteran status, genetic information or any other legally recognized protected basis under federal, state or local laws, regulations or ordinances.All candidates must be authorized to work in the United States and work from our offices