Linux System Programming Performance Engineer

JD for Linux System Programming Performance Engineer

Job Title: Senior System Software Engineer Performance (Linux)

Experience Required:810 years

Location: Bangalore, India

Role Summary

Linux System Software Performance Engineer responsible for performance measurement, trace collection, and triage across baremetal and virtualized platforms, with focus on hard realtime behavior and systemlevel performance derates.

Core Responsibilities PAVS KPIs & Deliverables

- Own endtoend performance measurements across Linux system software stacks

- Collect traces, triage issues, and perform rootcause analysis for performance deviations

- Identify, quantify, and report system bottlenecks impacting PAVS KPIs

- Generate tracebacked evidence for performance signoff and regressions

- Collect and analyze traces for: hard realtime latency, Interrupt latency, scheduler latency, wakeup latency

- Jitter and determinism characterization using kernel traces

- Triage realtime violations and correlate with kernel / driver paths

Hypervisor vs BareMetal Performance Derates

- Measure and quantify performance derates in virtualized vs baremetal environments

- Perform subsystemlevel triage and trace analysis for:

CPU (scheduling, vCPU overhead)

GPU (submission latency, virtualization overhead)

NPU (compute and scheduling impacts, if applicable)

Memory (bandwidth, latency, contention)

Disk / Storage (I/O latency, throughput)

Network (latency, throughput, virtualization overhead)

- Identify virtualization overheads and provide optimization insights

Performance Tooling & Trace Collection

- Kernel and userspace profiling tools: perf, ftrace, tracecmd

- Scheduler, IRQ, I/O trace collection

- Performance baselining and regression tracking

Required Skills

- Strong Linux system programming experience

- Must have strong hands on programming in C, C++, or Python (any one)

- Linux device driver development experience

Good to Have

- Kernel, driver, or middle