About the Role : As the only company focused 100% on Java, Azul is building the Java platform for the modern cloud enterprise. Falcon is a key technology in Azul Platform Prime, a Just-In-Time compiler for Java bytecode based on LLVM. We are looking for an LLVM Compiler Engineer to help improve Falcon.Key Responsibilities : - Design, develop, and enhance compiler features and optimization techniques for the Falcon JIT compiler.- Develop and optimize LLVM-based compilation pipelines for Java and other managed languages.- Analyze compiler-generated machine code and implement optimizations to improve execution speed, throughput, and resource efficiency.- Work on compiler intermediate representations (IR), instruction selection, code generation, register allocation, and other compiler optimization stages.- Investigate and resolve complex compiler correctness, performance, and code-generation issues.- Optimize generated code for contemporary processor architectures, including x86-64 and ARM64.- Conduct performance benchmarking, profiling,



and regression analysis to identify optimization opportunities.- Collaborate with compiler, runtime, and performance engineering teams to improve end-to-end application performance.- Contribute enhancements, fixes, and research-driven improvements to LLVM and related open-source projects.- Participate in technical design discussions, code reviews, and collaborative development across a geographically distributed team.Minimum Requirements : - Strong C/C++ design and coding skills- 5+ years of experience developing LLVM compilers, or transferable experience with another compiler- Strong background in compiler theory and developmentPreferred Experience : - Solid experience in developing language runtimes and JIT compilers- Thorough knowledge of x86_64 and/or ARM64 instruction sets and optimizations- Performance analysis experience- Experience with Java, Scala or Kotlin- PhD in Computer Science, and/or significant research experience (ref:hirist.tech)

📌 Azul - LLVM Compiler Engineer - Java Technologies (Mumbai)
🏢 Azul Systems India
📍 Mumbai