Senior Software Engineer, Storage Systems
ByteDance, San Jose, California
The role
You will analyze the performance bottleneck and optimize the Linux storage path for high-performance, reliable compute platforms. Your work will span the block layer, file systems, NVMe and device drivers, memory and I/O interactions, observability, and failure recovery. You will own substantial storage features and difficult production issues from measurement through implementation and validation, with clear accountability for latency, throughput, availability, and data integrity.
What you will do
- Analyze the performance bottleneck and optimize Linux storage components across block I/O, file systems, NVMe, device drivers, caching, and relevant user-space services.
- Diagnose failures or exceptions across devices, PCIe, firmware, kernel, memory, networking, runtimes, and applications; drive root-cause analysis through verified resolution.
- Characterize workloads and use tracing, profiling, telemetry, logs, and hardware counters to identify latency, throughput, utilization, and scalability bottlenecks.