Browser Ecosystem Enablement

Key Responsibilities

• Profile and optimize performance across Chromium subsystems, including Blink, V8, Skia, GPU/ANGLE, and browser multi-process architecture
• Identify CPU, memory, GPU, and power bottlenecks using real workloads, benchmarks, and field telemetry
• Implement performance improvements in areas such as page load, rendering, JavaScript execution, graphics/compositing, and browser responsiveness
• Drive optimizations across platforms (Windows primary; Linux/macOS experience a plus), including interactions with OS schedulers, graphics stacks, and drivers
• Analyze performance using industry-standard and custom tools (e.g., Perfetto, ETW, Chrome Tracing, VTune, PIX, GPUView, perf)
• Collaborate with browser vendors, OS teams, compiler teams, and hardware partners to co-optimize software and platforms
• Contribute clean, well-reviewed patches upstream to Chromium or downstream forks as appropriate
• Translate benchmark and microarchitectural findings into practical, scalable browser improvements
• Document performance investigations, results, and best practices; communicate findings clearly to technical stakeholders

Required Qualifications

• Software engineering experience, with a strong focus on performance optimization
• Hands-on experience working with Chromium or Chromium-based browsers (e.g., Chrome, Edge, internal forks)
• Strong proficiency in C++ and modern C++ performance best practices
• Deep understanding of browser internals, including at least two of the following:
• Rendering pipeline (Blink lifecycle, style/layout/paint)
• JavaScript engines (V8 internals, JIT behavior, GC)
• Graphics and compositing (Skia, GPU rasterization, ANGLE, WebGL)
• Multiprocess/threading model and IPC in Chromium
• Proven experience using low-level profiling and tracing tools to drive optimizations
• Strong debugging skills across large, complex codebases
• Able to reason from microarchitectural behavior (cache, memory, SIMD, branch behavior) up to user-perceived performance

Preferred Qualifications

• Experience optimizing browser performance on Windows, including ETW-based analysis and graphics stack interactions
• Familiarity with Clang/LLVM, compiler-driven optimizations, and code-generation tradeoffs
• Experience working with performance benchmarks (JetStream, Speedometer, WebXPRT, MotionMark, internal workloads)
• Exposure to hardware-aware optimization (CPU topology, cache behavior, SIMD/AVX, GPU execution models)
• Prior experience contributing to large open-source projects or upstream Chromium performance changes
• Ability to mentor junior engineers and influence performance culture across teams