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# Senior Compiler Performance Engineer

- **Company:** Azul LLC
- **Location:** Remote, OR, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, C++ (Programming Language), Code Generation, Profiling, Code Review, Microarchitecture, Java Virtual Machine (JVM), Information Technology, Software Coding, Vectorization
- **Published:** October 13, 2026
- **Apply:** https://www.thejobnetwork.com/job/b1dfbbe3-2e2e-4f7c-bfa0-72d3a062ba9c/senior-compiler-performance-engineer

## About the Role

* 5+ years of professional experience developing optimizing compilers or JIT compilers
 * Strong C++ design and coding skills in large codebases
 * Proven track record of delivering compiler optimizations with measurable performance impact
 * Deep knowledge of compiler optimization theory and its practical tradeoffs: compile time, code size, correctness
 * Strong performance analysis skills: profilers, hardware counters, reading and reasoning about generated assembly

Nice to Have

 * Significant experience with LLVM optimization passes or code generation; LLVM commit access is a plus
 * Experience with JIT compilers for managed languages: HotSpot C2, Graal, V8, .NET RyuJIT or similar
 * Deep knowledge of x86_64 and/or AArch64 microarchitecture
 * Experience with JVM internals: garbage collection, deoptimization, profiling
 * PhD in Computer Science or significant research experience in compilers

## Description

You will work in a distributed team of compiler experts, with direct influence on what Falcon optimizes next.

What You Will Do

 * Own performance of Falcon for a set of workloads or an optimization area end to end: analysis, design, implementation, validation
 * Design and implement new optimizations and improve existing ones in the middle end and back end: inlining heuristics, loop optimizations, vectorization, escape analysis, speculation and deoptimization, GC barrier and runtime call optimization
 * Drive code generation quality on x86_64 and AArch64, including bringing Falcon to new hardware platforms
 * Investigate complex performance issues reported by customers and turn findings into compiler improvements
 * Review code, mentor engineers on the team and raise the bar for performance methodology