Software Engineer - BIOS​/UEFI, AWS Hardware Engineering, Firmware Development

AWS BIOS Engineering team creates and maintains custom firmware solutions for Amazon's innovative server platforms. Our BIOS/UEFI implementations are industry‑leading in security, performance, and operational excellence, and are critical to the success of AWS's massive‑scale infrastructure that millions of customers rely on daily. Our BIOS engineers solve complex firmware challenges and build robust, secure boot loader solutions that enable AWS to maintain its competitive edge in cloud computing.

• Design and implement custom UEFI/BIOS features for AWS server platforms.
• Debug complex firmware issues using tools like ITP, Scan Tool, and JTAG.
• Optimize boot time performance and platform initialization sequences.
• Implement secure boot mechanisms and firmware security features.
• Develop and maintain Power‑On Self Test (POST) code.
• Create firmware update mechanisms and recovery solutions.
• Work with hardware teams on board bring‑up and platform validation.

• Develop and maintain UEFI/BIOS code for server platforms.
• Implement ACPI tables and power management features.
• Create and maintain Platform Reference Code (PRC).
• Debug complex firmware issues using ITP and JTAG tools.

• Work directly with ODM partners.
• Coordinate BIOS development efforts.
• Review and validate ODM‑provided BIOS code.
• Support manufacturing bring‑up and validation.

• Interface with CPU/GPU vendors (Intel, AMD, and Nvidia) for new platform bring‑up.
• Integrate and rebase Reference Code packages.
• Support system validation and debugging.

• Provide technical leadership in advanced features.
• Mentor junior BIOS engineers.
• Review technical specifications and design documents.
• Lead architecture discussions and technical planning.
• Establish coding standards and best practices.

• Coordinate between international teams (US and Taiwan).
• Track project timelines and deliverables.
• Interface with product management and customer teams.

• Maintain relationships with silicon vendors.
• Participate in industry forums and standards bodies.
• Keep up with emerging technologies and industry trends.

• 2+ years of non‑internship professional software development experience.
• Experience programming with at least one modern language such as C++, C#, Java, Python, Golang, Power Shell, or Ruby.
• 1+ year of designing or architecting new and existing systems (design patterns, reliability and scaling).
• 3+ years of hands‑on systems engineering experience in networking, storage systems, and operating systems.
• Knowledge of systems engineering fundamentals (networking, storage, operating systems).

• Bachelor's degree.
• 3+ years of non‑internship professional software development experience.
• Experience developing and debugging server platform BIOS/UEFI.

Amazon is an equal‑opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Los Angeles County applicants:
Job duties for this position include working safely and cooperatively with other employees, supervisors, and staff; adhering to standards of excellence despite stressful conditions; communicating effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and following all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position.

Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Job : A

Salary: USA, CA, Cupertino –  –  USD annually. USA, WA, Seattle –  –  USD annually. Benefits include health insurance, 401(k) matching, paid time off, and parental leave.