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Engineering & Development
Full-time
July 31, 2026

LLVM Compiler Engineer

Azul ยท Direct from employer
Salary not disclosed
Europe (multiple countries)
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Description

As the only company focused 100% on Java, Azul is building the Java platform for the modern cloud enterprise. We are reimagining how customers use Java, bringing them the tools and insight they need to deliver faster, more performant, more dependable, and less expensive Java services. Come join one of the most influential members of the Java and OpenJDK community and help influence the future of Java.

Falcon is one of the key technologies in Azul Platform Prime. It is a Just-In-Time compiler for Java bytecode based on LLVM that pushes Java performance to the levels never reached before. Azul's compiler team is looking for an LLVM Compiler Engineer interested in helping us improve Falcon even further.

In this role you will be working with a distributed but highly collaborative team of compiler experts. You will be creating new features and optimization in Falcon compiler, improving LLVM performance for managed languages, and contributing to open source.

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 development

Very Nice to Have / Preferred 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

Benefits

  • Opportunity to make a high impact at a growing, global company
  • Work alongside top experts worldwide contributing to the Java ecosystem
  • Referral Program โ€” help us grow with great people
  • Premium IT equipment โ€” MacBook Pro or hardware of your choice
  • 5 weeks of holidays + 5 sick days
  • Flexible working hours; full remote possible
  • Prague / Limassol / Belgrade city center offices โ€” hybrid or full-remote also possible
  • Competitive compensation
About the company
Azul
Azul builds Java runtimes and application platforms for enterprises. Its products include Azul Core (an Oracle Java replacement), Azul Prime (a high-performance Java platform), Azul Payara Micro (a cloud-native runtime for microservices), and Azul Payara Server (an app server for mission-critical workloads). Azul Intelligence provides runtime intelligence for AI codegen and modernization. The company serves customers in retail, financial services, ad tech, gaming, higher education, and sports betting, with support for big data technologies like Kafka, Cassandra, and Spark.
Software, Java Platform
Azul ยท Direct from employer

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