Senior Compiler Performance Engineer

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

Contribute to upstream LLVM where it makes sense

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