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# Staff BIOS/Platform System Engineer

- **Company:** Monolithic Power Systems
- **Location:** San Jose, CA, United States
- **Experience:** Expert
- **Salary:** $140,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Advanced Configuration and Power Interface (ACPI), Adobe InDesign, Systems Engineering, Intelligent Platform Management Interface, Bash Shell, BIOS, C++ (Programming Language), Computer Engineering, Datasheets, Software Debugging, Device Drivers, Microprocessors, Dynamic Random-Access Memory, Firmware, Joint Test Action (IEEE Standards), Python (Programming Language), PCI Express, Subsystems, System Programming, Universal Asynchronous Receiver/Transmitter, USB, Scripting, Extensible Firmware Interface, Git, Information Technology, U-Boot, Software Version Control
- **Published:** October 27, 2026
- **Apply:** https://www.adzuna.com/details/5750153215

## About the Role

* Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a closely related field.
 * 3+ years of hands-on experience in BIOS/UEFI firmware development or validation.
 * Demonstrated experience with at least two of the following CPU architectures: AMD (AGESA, EPYC/Ryzen), Intel (FSP, Core/Xeon), or ARM (TF-A, EDK2).
 * Strong understanding of DDR5 memory architecture, training algorithms, SPD/MR registers, and RAS features.
 * Proficiency in C/C++ and scripting languages (Python, Bash) for firmware development and automation.
 * Experience with UEFI/EDK2 framework, SMM, DXE, PEI driver development, and ACPI/ASL.
 * Familiarity with hardware debug tools: JTAG debuggers (Intel ITP, Lauterbach), protocol analyzers, oscilloscopes, and serial console interfaces.
 * Solid understanding of platform busses and interfaces: PCIe, USB, I2C/SMBus, SPI, LPC, UART, and GPIO.
 * Experience reading and interpreting hardware schematics, datasheets, and silicon vendor documentation.
 * Excellent analytical and problem-solving skills with the ability to work across hardware and software boundaries.
 * Strong written and verbal communication skills; experience authoring technical documentation., * Experience with AMD PSP, Intel ME/CSME, or ARM TrustZone security subsystems.
 * Familiarity with BMC firmware (OpenBMC) and IPMI/Redfish management interfaces.
 * Knowledge of server platform RAS features: DRAM ECC, memory mirroring, patrol scrub, and machine check architecture (MCA).
 * Exposure to PCIe Gen 5 or CXL 2.0/3.0 interconnect validation.
 * Hands-on experience with JEDEC DDR5 compliance testing and memory timing optimization.
 * Understanding of power management frameworks: ACPI, AMD STAPM, Intel DPTF, and platform telemetry.
 * Prior collaboration with silicon vendors (AMD, Intel, Arm Ltd.) on pre-silicon or early-silicon bring-up.
 * Experience with version control systems (Git), CI/CD pipelines, and agile engineering workflows.

Work Environment & Collaboration

This role requires close day-to-day collaboration with Systems Engineers, Hardware Engineers, and Design/Applications Engineers in a fast-paced lab environment. You will have access to pre-production hardware, silicon support, and a dedicated debug lab equipped with industry-standard instrumentation. Occasional travel to vendor or customer sites may be required.

## Description

We are seeking a skilled and motivated Senior BIOS Engineer to join our system engineering team. In this role, you will work closely with Systems Engineers to troubleshoot, validate, and optimize firmware and low-level software across a diverse portfolio of platforms built on AMD, Intel, and ARM-based CPUs, with a focus on DDR memory subsystems and other critical components. You will play a key role in bringing up/troubleshooting and validating memory subsystem/components on different platforms, resolving complex hardware-software interface issues, and ensuring robust interoperability/compatibility of subsystems/components and production readiness., * Lead BIOS-level bring-up and validation for new hardware platforms, including debug of CPU, chipset, and memory (DDR5/6) subsystems.

 * Develop and execute validation test plans for BIOS features, power management (ACPI/S-states), security features (Secure Boot, TPM, AMD PSP, Intel TXT/SGX), and boot flows.
 * Support manufacturing and sustaining engineering with BIOS customization, factory programming, and field issue resolution.
 * Analyze, troubleshoot, and customize BIOS/UEFI firmware for platforms using AMD EPYC/Ryzen, Intel Core/Xeon, and ARM-based processors.
 * Collaborate closely with Systems Engineers to troubleshoot and validate subsystems and components across the full platform stack.
 * Analyze and resolve hardware-firmware interface issues including POST failures, memory training errors, PCIe enumeration problems, and thermal/power sequencing anomalies.
 * Configure and validate DDR5 memory subsystems, including SPD/XMP programming, memory training tuning, RAS features, and JEDEC compliance.
 * Work with CPU vendors to ensure the adoption of certain BIOS customization for certain platforms
 * Debug using industry-standard tools such as JTAG/ITP debuggers, logic analyzers, oscilloscopes, and serial console output.
 * Author and maintain issue logs/notes, validation reports, debug guides, and internal technical documentation.
 * Participate in design reviews, hardware bring-up planning, and cross-functional meetings