Software Engineer, Core Network Engineering
AI research and deployment company building and deploying frontier AI products, including ChatGPT, Codex, and its API platform.
Projects
About OpenAI
OpenAI’s mission is to ensure artificial general intelligence benefits all of humanity. It consists of the nonprofit OpenAI Foundation and OpenAI Group, a public benefit corporation governed by the Foundation.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and operate the networking foundation behind frontier AI systems, working across host networking, datacenter fabrics or global WAN. You'll develop automation and observability tooling, optimize RDMA, RoCE, InfiniBand and Ethernet performance, define readiness criteria and validation systems, and diagnose complex networking issues at scale.
Requirements
- 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 InfiniBand, RoCE, DPDK, or large-scale Ethernet fabrics
- Experience with datacenter networking, WAN, or host networking stacks
- Ability to write production software in C++, Python, or Go
- Strong systems fundamentals
Responsibilities
- Design, build, and operate networking systems for large-scale AI training and inference
- Improve performance, reliability, and scalability across host networking, datacenter fabrics, and WAN
- Develop automation for provisioning, configuration management, validation, upgrades, and lifecycle management
- Build tooling and observability for network health, performance analysis, debugging, and remediation
- Optimize network performance across RDMA, RoCE, InfiniBand, Ethernet, and GPU interconnects
- Define and operationalize networking protocols, readiness criteria, and continuous validation
- Partner with compute, storage, hardware, and infrastructure teams
- Contribute to architecture decisions on topology, capacity planning, and failure domains
- Diagnose complex distributed systems and networking issues
Benefits
- Equity
- Performance-related bonus
- Medical, dental, and vision insurance with employer HSA contributions
- Health FSA, Dependent Care FSA, and commuter pre-tax accounts
- 401(k) with employer match
- Paid parental leave (up to 24 weeks for birth parents, 20 weeks for non-birthing parents)
- Paid medical and caregiver leave (up to 8 weeks)
- Flexible PTO for exempt employees
- 13+ paid company holidays and coordinated company office closures
- Paid sick or safe time
- Mental health and wellness support
- Employer-paid basic life and disability coverage
- Annual learning and development stipend
- Daily meals in offices and meal delivery credits
- Relocation support for eligible employees
- Charitable donation matching and wellness stipends
