Junior Performance Software Engineer

Responsibilities

• Make independent technical contributions to help the team deliver its commitments.
• Optimize AI, HPC, and other workloads and benchmarks for our RISC V silicon with vector extensions.
• Identify bottlenecks via workload characterization and drive implementation of solutions.
• Decompose applications and understand how they run on the underlying hardware.
• Understand performance at a system level, from CPU, memory, storage, and power utilization.
• Profile and optimize on pre silicon environments (simulators, emulators, FPGAs) and on silicon.
• Troubleshoot and conduct root cause analysis to resolve performance issues.
• Optimize HPC and AI libraries and runtimes.
• Work with customers to optimize their critical 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 and at industry conferences.
• Contribute upstream where appropriate.
• Interact with colleagues across projects to unblock issues or reach consensus on technical topics.
• Collaborate with hardware teams, influencing hardware/software co design.
• Collaborate with teams developing compilers, firmware, AI stacks, middleware, and contribute as necessary.
• Collaborate through code reviews, bug triaging, design documents, and other shared responsibilities such as CI failure triaging, documentation, and code fixes.

Qualifications

• Bachelor's or Master's degree in a relevant field.
• 1-3 years of experience in the relevant field.
• Solid knowledge of computer architecture (CPU, cache, memory hierarchy, buses, etc.).
• Proven experience with performance optimization and profiling/analysis tools (Linux perf, iperf, lmbench, sysbench, flamegraphs, JMeter, LoadRunner, Gatling, Intel VTUNE, ARM SPE, etc.).
• Solid knowledge of low level development languages (C, C++, Rust, etc.).
• Experience with assembly language on 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.
• Strong problem solving skills with the ability to troubleshoot and identify complex issues.
• Experience with bare metal development for embedded systems and microcontrollers.
• Experience with standard tools for source control (git), continuous integration, and task management (Jira).
• Experience with machine learning and/or HPC performance optimization.
• Experience with Fortran.
• Experience with RISC V development at the assembly language level.
• Experience with statistical analysis.
• Experience with emulators and simulators (Qemu, Gem5, Spike).
• Experience in containerized environments (Docker, Kubernetes).
• Experience with hypervisor technology (KVM, Xen).
• Experience with open source software development.

Hard Skills

• C
• C++
• Rust
• Assembly Language
• Performance Benchmarking
• Bare Metal Development
• Statistical Analysis
• Machine Learning Optimization
• RISC V Development
• Emulators and Simulators

Soft Skills

• Problem Solving
• Collaboration
• Communication