Staff Compiler Performance Engineer

Accountabilities: Performance Strategy and Technical Roadmap: Define the compiler's performance direction by analyzing benchmarks, production workloads, and customer requirements to identify the most impactful optimization opportunities. Compiler Optimization and Code Generation: Lead the design and implementation of complex, cross-cutting optimizations across compiler optimization pipelines and code generation systems. Architecture and Technical Direction: Make key architectural decisions concerning the optimization pipeline, compilation-time budgets, tiered compilation strategies, and the balance between peak performance, startup time, and code size. Runtime and Garbage Collection Integration: Drive the design of interfaces between the compiler, runtime, and garbage collector, ensuring effective coordination around speculation, deoptimization, and memory-management barriers. Hardware and Product Enablement: Lead engineering efforts to support new hardware platforms and product capabilities, ensuring compiler performance and architectural scalability. Technical Leadership and Mentoring: Provide technical guidance to senior engineers, review critical designs and code, and establish best practices for performance measurement, benchmarking, and validation. Performance Analysis: Investigate performance bottlenecks at the microarchitecture level and translate findings into measurable improvements in compiler efficiency and generated machine code. LLVM Community Engagement: Represent the engineering team in the LLVM ecosystem by contributing to upstream development, participating in architectural discussions, and advancing compiler technologies for managed programming languages. Cross-Functional Collaboration: Partner with runtime, garbage collection, and product engineering teams to align technical decisions with broader platform objectives and long-term product requirements. Requirements Professional Experience: At least 8 years of professional experience developing optimizing compilers or just-in-time (JIT) compilers. Technical Leadership: Demonstrated experience leading the architecture and design of major compiler components or optimization frameworks deployed in production environments. C++ Expertise: Expert-level proficiency in C++ and experience developing, maintaining, and evolving large, long-lived software codebases. Compiler Optimization: Deep knowledge of compiler optimization techniques, code generation, and optimization pipeline architecture. Performance Engineering: Advanced performance analysis skills, including microarchitecture-level investigation, benchmarking, profiling, and bottleneck identification. Optimization Trade-Offs: Strong understanding of the trade-offs between peak execution performance, compilation time, application warmup, and generated code size. Architectural Judgment: Ability to make sound technical decisions across complex systems, balancing immediate performance improvements with long-term maintainability and product evolution. Communication and Collaboration: Strong technical communication skills and the ability to influence architectural decisions, collaborate across engineering disciplines, and mentor experienced engineers in a distributed team environment. Preferred Qualifications LLVM Contributions: Recognized contributions to LLVM or another major compiler project, such as serving as a code owner or maintainer or authoring significant upstream improvements. Managed-Language JIT Experience: Deep experience with JIT compilers for managed languages, such as HotSpot C2, Graal, V8, .NET RyuJIT, or comparable technologies. Runtime and Garbage Collection Expertise: Experience collaborating closely with runtime and garbage collection teams on speculation, deoptimization, memory barriers, and related compiler-runtime interactions. Benefits Remote Work Flexibility: Remote employment opportunities in India, with locations including Bangalore, Delhi, and Mumbai. Technical Impact: The opportunity to shape the performance strategy and architecture of a mature compiler used in enterprise production environments. Advanced Engineering Challenges: Work on complex compiler optimization, generated machine code, runtime integration, and hardware performance. Technical Leadership: Influence engineering standards, guide senior developers, and drive decisions across a distributed team of compiler specialists. Open-Source Engagement: Opportunities to contribute to LLVM and participate in the broader compiler engineering community. Professional Development: Expand expertise in compiler architecture, managed-language runtimes, and performance engineering. Compensation and Additional Benefits: Salary, bonuses, healthcare coverage, and other benefits were not specified in the original job description and should be confirmed during the recruitment process.