Requirements

• Significant experience operating large-scale datacenter or high-performance computing networks in production.
• Deep understanding of Ethernet, RDMA, RoCEv2, congestion control, routing, load balancing, and lossless or near-lossless network design.
• Experience debugging complex failures across switches, NICs, hosts, drivers, firmware, and distributed applications.
• Strong Linux systems knowledge and proficiency in Python, Go, C++, or another systems-oriented programming language.
• Experience building monitoring, automation, diagnostic, or remediation systems for production infrastructure.
• Demonstrated ability to lead high-severity incidents and coordinate resolution across multiple engineering teams.

Nice to Haves

• Experience operating GPU training clusters or other tightly coupled distributed-computing systems.
• Knowledge of MRC or other multi-rail, multi-plane, multipath Ethernet transports.
• Experience with NCCL, collective communications, CUDA, GPUDirect RDMA, and distributed training frameworks.
• Familiarity with ConnectX-class NICs, modern Ethernet switch ASICs, SONiC, SAI, and switch telemetry.
• Experience with InfiniBand and the operational differences between InfiniBand and Ethernet-based AI fabrics.

What You'll Be Doing

• Own Production Network Health
• Operate the Network at Frontier Scale
• Improve Large-Job Reliability and Performance
• Automate Fleet Operations
• Drive Cross-Company Execution

Perks and Benefits

• Microsoft is an equal opportunity employer
• All qualified applicants will receive consideration for employment without regard to various factors
• Find additional benefits and pay information here
• Open position for a minimum of 5 days with ongoing applications until filled