Skip to contentStaff Engineer - Performance at DDN · KatoriJob Summary
Key Responsibilities
• 12+ years systems/storage performance engineering at staff/principal level.
• Deep Linux storage I/O path and kernel module profiling/tuning.
• Distributed storage benchmarking at scale (fio, file-system tools).
• NVMe/NVMe-oF, block-device internals, erasure coding / RAID data paths.
• RDMA (RoCEv2/InfiniBand), TCP offload, NUMA-aware tuning.
• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).
• Add build gating and smoke-test stages so broken builds never reach QE.
Preferred Skills:
• Lustre performance (LNet, OSTs/MDTs, obdfilter-survey, client fio).
• Software-defined NVMe-oF / distributed block storage internals.
• Cloud bare-metal (OCI/GCP), dense NVMe platforms.
• OFED/MOFED/DOCA driver evaluation, ConnectX-class NIC tuning.
The ad says“• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).”
The ad says“• NVMe/NVMe-oF, block-device internals, erasure coding / RAID data paths.”The ad says“• Distributed storage benchmarking at scale (fio, file-system tools).”The ad says“• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).”The ad says“• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).”The ad says“• Deep Linux storage I/O path and kernel module profiling/tuning.”The ad says“• Deep Linux storage I/O path and kernel module profiling/tuning.”The ad says“• RDMA (RoCEv2/InfiniBand), TCP offload, NUMA-aware tuning.”The ad says“• NVMe/NVMe-oF, block-device internals, erasure coding / RAID data paths.”The ad says“• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).”The ad says“• C, Python, and Linux perf tooling (perf, ftrace, eBPF, flamegraphs).”The ad says“• NVMe/NVMe-oF, block-device internals, erasure coding / RAID data paths.”The ad says“• RDMA (RoCEv2/InfiniBand), TCP offload, NUMA-aware tuning.”The ad says“• RDMA (RoCEv2/InfiniBand), TCP offload, NUMA-aware tuning.”The ad says“• Add build gating and smoke-test stages so broken builds never reach QE.”The ad says“• 12+ years systems/storage performance engineering at staff/principal level.”The ad says“• RDMA (RoCEv2/InfiniBand), TCP offload, NUMA-aware tuning.”The ad says“• Software-defined NVMe-oF / distributed block storage internals.”
The ad says“• Lustre performance (LNet, OSTs/MDTs, obdfilter-survey, client fio).”The ad says“• Lustre performance (LNet, OSTs/MDTs, obdfilter-survey, client fio).”The ad says“• Lustre performance (LNet, OSTs/MDTs, obdfilter-survey, client fio).”The ad says“• Cloud bare-metal (OCI/GCP), dense NVMe platforms.”The ad says“• OFED/MOFED/DOCA driver evaluation, ConnectX-class NIC tuning.”The ad says“• Lustre performance (LNet, OSTs/MDTs, obdfilter-survey, client fio).”The ad says“• Software-defined NVMe-oF / distributed block storage internals.”