GPU Infra Engineer — Scale, Automation & AI Compute

OpenAI; Greater London; On-site; GBP 120,000 - 190,000; Full time

Job summary

OpenAI is seeking a Software Engineer to design and operate large-scale GPU infrastructure powering ChatGPT workloads. You will build systems for fleet health, capacity planning, and automation, collaborating with infrastructure, research, and product teams to improve reliability and compute utilization.

This role suits engineers who enjoy solving operational challenges, building internal platforms, and advancing infrastructure that scales with frontier AI in a fast-moving environment.

Qualifications

• Five or more years of software engineering experience building production infrastructure.
• Experience designing and operating highly available distributed systems.
• Experience with GPU infrastructure, HPC, ML infrastructure, or large-scale compute platforms.
• Experience with Kubernetes, cloud infrastructure, Linux, networking, and observability tooling.
• Excellent debugging, systems design, and operational problem-solving skills.

Responsibilities

• Design, build, and operate software that manages large-scale GPU infrastructure supporting ChatGPT inference.
• Build internal platforms, tooling, and AI-powered agents that automate fleet operations and reduce operational overhead.
• Improve observability, reliability, and operational efficiency across thousands of GPUs.
• Develop systems for capacity planning, scheduling, fleet health monitoring, and incident response.
• Identify infrastructure bottlenecks and implement solutions that improve utilization, scalability, and performance.
• Partner closely with research, platform, networking, and systems teams to continuously improve our compute platform.
• Help establish engineering best practices around operational excellence, automation, and infrastructure reliability.

Skills

Go

Python

C++

Rust

Kubernetes

Linux

Observability

Distributed systems

Tools

Terraform

Docker

Prometheus

Job description

OpenAI is seeking a Software Engineer to design and operate large-scale GPU infrastructure powering ChatGPT workloads. You will build systems for fleet health, capacity planning, and automation, collaborating with infrastructure, research, and product teams to improve reliability and compute utilization.

This role suits engineers who enjoy solving operational challenges, building internal platforms, and advancing infrastructure that scales with frontier AI in a fast-moving environment.