Senior Compiler Performance Engineer

Azul

. Own performance of Falcon for a set of workloads or an optimization area end to end: analysis, design, implementation, validation .

Posted 10/15/2026full-timeRemote • IndiaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in optimizing compilers and JIT compilers, with a strong focus on performance analysis and compiler optimization theory. Proficient in C++ and experienced in LLVM optimization passes, with a deep understanding of microarchitecture and JVM internals.

Highest-signal resume keywords

C++ Design And Coding SkillsCompiler Optimization TheoryLLVM Optimization PassesPerformance Analysis SkillsJIT Compilers Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Compiler OptimizationPerformance AnalysisCode GenerationInlining HeuristicsLoop OptimizationsVectorizationEscape AnalysisSpeculationDeoptimizationGarbage Collection

Soft Skills

MentoringCode Review

Tools & Technologies

LLVMX86_64AArch64HotSpot C2GraalV8.NET RyuJIT

Certifications & Qualifications

PhD In Computer Science

Industry Keywords

CompilerJIT CompilerPerformance MethodologyMicroarchitectureAssembly

Tech Stack

Tools & technologies

AssemblyC++.NET

About the role

Key responsibilities & impact

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, including 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

Requirements

What you’ll need

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
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 is nice to have