Staff BIOS/Platform System Engineer

Job Title

Staff BIOS/Platform System Engineer

Role Summary

The Staff BIOS/Platform System Engineer leads BIOS/UEFI bring-up, validation, and low-level firmware debugging across platforms based on AMD, Intel, and ARM processors. The role focuses on DDR memory subsystems, hardware–firmware interfaces, cross-functional lab bring-up, and production readiness of platform firmware.

Experience Level

Senior — posting requires 3+ years of hands-on BIOS/UEFI firmware development or validation experience.

Responsibilities

Primary responsibilities include platform bring-up, validation, troubleshooting, and documentation.

• Lead BIOS/UEFI bring-up and validation for new hardware platforms, including CPU, chipset, and DDR memory subsystems.
• Develop and execute validation test plans for BIOS features, power management (ACPI/S-states), security features, and boot flows.
• Troubleshoot hardware–firmware interface issues: POST failures, memory training errors, PCIe enumeration, and power/thermal sequencing.
• Configure and validate DDR5 memory subsystems: SPD/XMP programming, memory training tuning, RAS features, and JEDEC compliance work.
• Customize and debug BIOS/UEFI firmware on AMD (AGESA/EPYC/Ryzen), Intel (FSP/Core/Xeon), and ARM platforms.
• Support manufacturing and sustaining engineering with BIOS customization, factory programming, and field issue resolution.
• Use industry-standard debug tools (JTAG/ITP, logic analyzers, oscilloscopes, serial consoles) for root-cause analysis.
• Author and maintain issue logs, validation reports, debug guides, and internal technical documentation.
• Participate in design reviews, bring-up planning, and cross-functional troubleshooting with systems and hardware teams.

Requirements

Must-have technical skills and practical experience required for the role.

• 3+ years of hands-on BIOS/UEFI firmware development or validation experience.
• Experience with at least two CPU architectures from: 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 (e.g., Intel ITP, Lauterbach), protocol analyzers, oscilloscopes, and serial consoles.
• Solid understanding of platform busses and interfaces: PCIe, USB, I2C/SMBus, SPI, LPC, UART, and GPIO.
• Ability to read and interpret hardware schematics, datasheets, and silicon vendor documentation.
• Strong analytical, problem-solving, and written/verbal communication skills; experience authoring technical documentation.

Nice-to-have:

• 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 RAS features: DRAM ECC, memory mirroring, patrol scrub, and machine check architecture.
• Exposure to PCIe Gen5 or CXL validation and JEDEC DDR5 compliance testing.
• Understanding of power management frameworks (ACPI, AMD STAPM, Intel DPTF) and platform telemetry.
• Prior collaboration with silicon vendors on pre-silicon or early-silicon bring-up.
• Experience with version control (Git), CI/CD pipelines, and agile workflows.

Education Requirements

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a closely related field.

About the Company

Company: Monolithic Power Systems

Headquarters: San Jose, California, USA

Monolithic Power Systems, Inc. (MPS) is a leading provider of energy-efficient power solutions for various applications, including industrial, telecom, automotive, and consumer sectors. Known for their cutting-edge integrated power semiconductors, MPS emphasizes innovation, sustainability, and creativity, making them one of the fastest-growing companies in the semiconductor industry.