Software Engineer

Software Engineer - Performance Tools

Etched

Location:
United States , San Jose

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

150000.00 - 275000.00 USD / Year

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Job Description:

Join our team as a Software Engineer - Performance Tools and take the lead in illuminating the performance landscape of our cutting-edge ML accelerator. We are seeking a highly skilled engineer to design and develop a sophisticated performance analysis tool, tailored specifically for Sohu. You will be instrumental in creating the essential tooling that enables our ML engineers and customers to understand workload behavior, identify performance bottlenecks, and unlock the full potential of Sohu accelerating the most demanding ML applications in the world. This is a unique opportunity to shape performance analysis for novel hardware from the ground up.

Job Responsibility:

Tool Architecture & Design: Lead the design and architecture of a comprehensive performance analysis suite, including data collection mechanisms, data processing pipelines, analysis engines, and user interfaces (CLI and/or GUI)
Low-Level Data Collection: Develop robust methods to capture performance data directly from our custom ML accelerator hardware (e.g., hardware performance counters, execution unit status, memory access patterns) via driver interfaces or other mechanisms
Host & System Tracing: Implement tracing for host-side API calls (runtime libraries, driver interactions) and system-level events (CPU activity, PCIe traffic, memory usage, network contention) related to Sohu workloads
Data Correlation & Synchronization: Design and implement techniques to accurately correlate performance events across the host CPU, device driver, PCIe bus, multiple accelerators, and multiple hosts, ensuring precise time synchronization
Performance Analysis Engine: Build analysis modules to automatically interpret collected trace and counter data, identifying key performance limiters (e.g., compute-bound, memory bandwidth-bound, latency-bound, PCIe-bound, specific hardware bottlenecks)
Visualization & Reporting: Develop intuitive visualizations (timelines, dependency graphs, resource utilization charts, statistical summaries) to clearly communicate performance characteristics and bottlenecks to users
Collaboration & Support: Work closely with hardware architects, firmware engineers, driver developers, compiler engineers, and ML application engineers to understand their needs, define tool requirements, and provide expert guidance on performance analysis and optimization using the tool

Requirements:

Strong proficiency in C++ or Rust
Proficiency in Python is a plus
Deep understanding of computer architecture (CPU, GPU, accelerators), memory hierarchies (caches, DRAM), and interconnects (especially PCIe)
Proven experience in low-level performance analysis, profiling, and bottleneck identification on complex hardware systems (GPUs, CPUs, FPGAs, or custom ASICs)
Experience with performance analysis tools (e.g., NVIDIA Nsight, AMD uProf, Intel VTune, perf, Tracy, ETW)
Experience working close to hardware, potentially reading performance counters or interacting directly with device drivers

Nice to have:

Direct experience developing performance analysis or debugging tools
Experience with ML accelerator architectures (GPUs, TPUs, etc.)
Experience with kernel-mode driver development (Linux or Windows)
Understanding of compiler internals, code generation, and optimization
In-depth knowledge of the PCIe protocol and analysis tools (PCIe analyzers)
Experience with multi-chip or multi-host accelerator systems (e.g., TPU pods, or NVidia DGX clusters)
Experience with firmware or embedded systems development
Experience with hardware description languages (Verilog, VHDL) or hardware verification

What we offer:

Medical, dental, and vision packages with generous premium coverage
$500 per month credit for waiving medical benefits
Housing subsidy of $2k per month for those living within walking distance of the office
Relocation support for those moving to San Jose (Santana Row)
Various wellness benefits covering fitness, mental health, and more
Daily lunch + dinner in our office

Additional Information:

Job Posted:
February 18, 2026

Employment Type:

Fulltime

Work Type:

On-site work

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