OpenAI
Software Engineer, Core Network Engineering
$230K–$342K
San Francisco · Full-time · Posted May 6, 2026
About the job
Build and operate networking infrastructure that supports large-scale AI training and inference, optimizing performance, reliability, and scalability across host, datacenter, and WAN systems.
What you'll do
- Design and operate networking systems and improve their performance, reliability, and scalability.
- Develop automation, observability, validation, and remediation tools for networking infrastructure.
- Optimize network performance and diagnose distributed systems issues; contribute to protocols, architecture, and capacity planning.
What they ask for
- Experience building or operating large-scale networking or distributed systems infrastructure.
- Experience with Linux networking, kernel systems, NICs, RDMA, or performance-sensitive infrastructure software.
- Experience with datacenter networking, WAN systems, or host networking stacks.
- Comfort writing production software in languages such as C++, Python, or Go.
Nice to have
- Experience with high-performance networking technologies such as InfiniBand, RoCE, DPDK, or large-scale Ethernet fabrics.
- Comfort working close to the hardware/software boundary.
Pay
$230K – $342K USD base salary
Tools
Linux, RDMA, RoCE, InfiniBand, Ethernet, DPDK, C++, Python
AI focus
Build and operate networking infrastructure that supports large-scale AI training and inference workloads.
Model-written summary · the original posting is authoritative