Staff Engineer

DDN; Pune District; On-site; INR 400,000 - 700,000; Full time

Job summary

DDN is seeking a senior Systems/Storage Performance Engineer to shape Linux storage performance across I/O paths, profiling kernel modules, and running large-scale benchmarking with fio and filesystem tools.

Expect work on NVMe/NVMe-oF, block-device internals, erasure coding/RAID paths, plus RDMA, NUMA-aware tuning, and extensive perf tooling (perf, ftrace, eBPF). C/Python proficiency required.

Qualifications

• 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.

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.

Skills

Systems performance

Linux I/O profiling

Benchmarking

RDMA tuning

C programming

Python programming

Perf tooling

Tools

fio

obdfilter-survey

Linux perf tooling

Job description

Job Summary

• 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).


• 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.

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.