Network Engineer: AI Infrastructure & High-Performance Networking

OpenAI; California (MO); On-site; USD 150,000 - 230,000; Full time

Job summary

OpenAI is seeking engineers to build and operate the networking foundation behind frontier AI systems. You will work on host networking, datacenter fabrics, and global WAN infrastructure to support AI training and inference at scale.

Role involves solving performance-critical infrastructure problems near the hardware/software boundary, with a focus on low latency, high throughput, and reliability across diverse environments.

Qualifications

• Experience building or operating large-scale networking or distributed systems infrastructure.
• Comfortable working close to the hardware/software boundary.
• Experience with Linux networking, kernel systems, NICs, RDMA, or performance-sensitive infra software.

Responsibilities

• Design, build, and operate networking systems that support large-scale AI training and inference infrastructure.
• Improve performance, reliability, and scalability across host networking, datacenter fabrics, and WAN systems.
• Develop automation for provisioning, configuration management, validation, upgrades, and lifecycle management of networking infrastructure.
• Build tooling and observability systems for network health, performance analysis, debugging, and automated remediation.
• Optimize network performance across RDMA, RoCE, InfiniBand, Ethernet, and high-performance GPU interconnects.
• Define and operationalize networking protocols, readiness criteria, and continuous validation systems.
• Partner with compute, storage, hardware, and infrastructure teams to scale networking with fleet growth.
• Contribute to architecture decisions around topology design, capacity planning, failure domains, and network reliability.
• Diagnose complex distributed systems and networking issues across large heterogeneous compute environments.

Skills

Linux networking

RDMA

Performance engineering

C++

Python

Go

Tools

DPDK

InfiniBand

RoCE

Job description

OpenAI is seeking engineers to build and operate the networking foundation behind frontier AI systems. You will work on host networking, datacenter fabrics, and global WAN infrastructure to support AI training and inference at scale.

Role involves solving performance-critical infrastructure problems near the hardware/software boundary, with a focus on low latency, high throughput, and reliability across diverse environments.