Junior Javascript Developer Jobs in Santa Clara, CA

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Together, we advance your career.

AMD is looking for a strategic software engineering lead who is passionate about improving the performance of key applications and benchmarks. You will be a member of a core team of incredibly talented industry specialists and will work with the very latest hardware and software technology.

We are seeking a Software Optimization Engineer with deep experience improving real‑world browser performance in Chromium‑based browsers. In this role, you will focus on identifying, analyzing, and resolving performance bottlenecks across the Chromium stack, working close to the browser engine, OS, and hardware. This position is ideal for an engineer who enjoys low‑level performance analysis, system‑level optimization, and collaborative work with browser, OS, and silicon teams to deliver measurable user‑visible gains.

• 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.
• 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.
• Ability to reason from microarchitectural behavior (cache, memory, SIMD, branch behavior) up to user‑perceived performance.

• 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.

• Bachelor’s or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent.

This role is not eligible for visa sponsorship.

Benefits offered are described: AMD benefits at a glance.

AMD does not accept unsolicited resumes from headhunters, recruitment agencies, or fee‑based recruitment services. AMD and its subsidiaries are equal opportunity, inclusive employers and will consider all applicants without regard to age, ancestry, color, marital status, medical condition, mental or physical disability, national origin, race, religion, political and/or third‑party affiliation, sex, pregnancy, sexual orientation, gender identity, military or veteran status, or any other characteristic protected by law. We encourage applications from all qualified candidates and will accommodate applicants’ needs under the respective laws throughout all stages of the recruitment and selection process.

AMD may use Artificial Intelligence to help screen, assess or select applicants for this position. AMD’s “Responsible AI Policy” is available here.

This posting is for an existing vacancy.