Senior Falcon JIT Compiler Performance Engineer

Azul; United States; Remote; USD 140,000 - 210,000; Full time

Benefits offered by this job

Premium IT equipment

5 weeks holidays

Flexible working hours

Hybrid/full-remote option

Referral Program

Job summary

Azul is seeking a Senior Compiler Performance Engineer to own major Falcon optimization areas. You will push generated code further across workloads, decide which optimizations matter, and deliver measurable speedups on real Java workloads.

You will work with a distributed team of compiler experts, shaping the next wave of Falcon optimizations and ensuring high-quality code generation for current and future hardware platforms.

Qualifications

• 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 practical tradeoffs.

Responsibilities

• Own performance of Falcon or related components end to end: analysis, design, implementation, validation.
• Design and implement new optimizations and improve existing ones in middle end and back end.
• Drive code generation quality on x86_64 and AArch64 and support new hardware.
• Investigate complex performance issues reported by customers and translate findings into fixes.

Skills

C++ design and coding

JIT/optimizing compilers

Performance analysis

LLVM optimization

x86_64/AArch64 knowledge

Education

PhD in Computer Science (nice to have)

Tools

LLVM

GCC

Job description

Azul is seeking a Senior Compiler Performance Engineer to own major Falcon optimization areas. You will push generated code further across workloads, decide which optimizations matter, and deliver measurable speedups on real Java workloads.

You will work with a distributed team of compiler experts, shaping the next wave of Falcon optimizations and ensuring high-quality code generation for current and future hardware platforms.