Senior Rack Power Engineer for AI Supercomputers

Alfie; San Francisco (CA); Hybrid; USD 287,000 - 485,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

OpenAI in San Francisco is seeking a Rack Power Engineer to design and support power systems for AI supercomputers. You will own rack power architecture, including power shelves, rectifiers, PSUs, PMCs, and DC distribution, collaborating with firmware and data center teams.

The role requires 10+ years in power electronics, a Master’s in Electrical Engineering, and hands‑on experience with PMBus, telemetry, fault handling, and high‑density AI racks.

Qualifications

• 10+ years in power electronics or power delivery.
• Experience with high‑power rack or data center systems.
• Master’s degree in Electrical Engineering or related field.
• Experience with PMCs, telemetry, fault management and interfaces like PMBus, I2C, CAN, Ethernet.
• Strong lab and debugging skills with oscilloscopes and power analyzers.
• Ability to work with cross‑functional teams and suppliers.

Responsibilities

• Own rack power architecture for AI systems.
• Drive design and supplier development of power shelves, rectifiers, PSUs, PMCs.
• Define and execute qualification plans for loads, redundancy, and fault tolerance.
• Collaborate with firmware and software teams on PMC functionality and telemetry.
• Characterize rack power under AI workloads and define design margins.
• Lead lab and fleet debugging across power hardware and firmware.
• Work with multiple teams to take rack power through prototyping, qualification, and production.
• Evaluate emerging rack power technologies and energy storage options.

Skills

Power electronics

Rack power design

Telemetry & monitoring

Root-cause analysis

Firmware integration

Education

Master's degree in Electrical Engineering

Tools

PMBus

I2C

CAN

Oscilloscopes

Job description

OpenAI in San Francisco is seeking a Rack Power Engineer to design and support power systems for AI supercomputers. You will own rack power architecture, including power shelves, rectifiers, PSUs, PMCs, and DC distribution, collaborating with firmware and data center teams.

The role requires 10+ years in power electronics, a Master’s in Electrical Engineering, and hands‑on experience with PMBus, telemetry, fault handling, and high‑density AI racks.