Performance Optimization Engineer
7 days ago
Company Overview
Openchip & Software Technologies S.L. is building exciting new RISC-V chips with AI and HPC acceleration.
Job Description
We are seeking a Senior Performance Software Engineer to play a crucial role in our performance team, optimizing popular AI and HPC applications and benchmarks to deliver best-in-class performance.
Key Responsibilities
- Make independent technical contributions to help the team deliver its commitments. In particular:
- Optimize AI, HPC, and other workloads and benchmarks for our RISC-V silicon with vector extensions.
- Identify bottlenecks with workload characterization and drive implementation of solutions.
- Decompose applications and how they run on the underlying hardware.
- Understand performance at a system level, from CPU, memory, storage, power utilization, etc.
- Profile and optimize on our pre-silicon (simulators, emulators, FPGAs), and silicon environments.
- Troubleshoot and root cause analysis to resolve performance issues.
- Optimize HPC and AI libraries and runtimes.
- Work with customers to optimize their important workloads for our architecture.
- Contribute to instrumentation of performance and power at the operating system level.
- Integrate with CI/CD to automate performance benchmarking.
- Present findings to senior technical leaders at our company and at industry conferences.
- Contribute upstream where appropriate.
- Interact with colleagues across projects to unblock issues or to reach consensus on technical topics. In particular:
- Work with hardware teams, influencing hardware/software co-design.
- Work with teams developing compilers, firmware, AI stacks, middleware, etc., and contribute as necessary.
- Collaborate with colleagues through code reviews, bug triaging, design documents, etc.
- Contribute to shared team responsibilities (CI failure triaging, documentation, code fixits, rotations, etc.).
Required Qualifications
- Bachelor or Master's degree in a relevant field.
- Experience in the relevant field (3-5 years).
- Proven experience with performance optimization and experience with performance profiling and analysis tools (Linux perf, iperf, lmbench, sysbench, flamegraphs, JMeter, LoadRunner, Gatling, Intel(R) VTUNE, ARM SPE, etc.).
- Solid knowledge of low-level development languages (C, C++, Rust, etc.).
- Experience with assembly language (any architecture).
- Experience with performance benchmarks (CoreMark, FPMark, LMBench, Stream, SPEC CPU, SPEC INT, graph500, CORAL, HPGMG, CoMD, Linpack, SuiteSparse Matrix Collection, MLPERF, ResNet, BERT, etc.).
- Solid understanding of operating systems, databases, networking, and cloud technologies.
- Experience with bare metal (without OS) development for embedded systems and microcontrollers.
- Experience with standard tools for source control (git), continuous integration, task management (Jira).
- Team player: communicative and collaborative person who focuses on the outcome of the team above the individual needs.
- Curious about learning new technologies/stacks.
- Capable of within- and cross-team collaboration at the technical level.
- Can-do attitude, proactive and willing to step up and resolve any obstacle. Self-aware, self-starter, and self-motivated.
- Strong problem-solving skills with the ability to troubleshoot and identify complex issues.
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