Software Engineer – Java Runtime (Apple JDK)

About the role

The AppleJDK team in Services builds and secures the Java runtime used across Apple services. As a Software Engineer you will work on the JVM, JIT compilers, garbage collectors, and native interfaces to improve security and stability.

Key responsibilities

• Design and implement security enhancements for the Java virtual machine.
• Debug and resolve runtime issues across multiple subsystems.
• Collaborate with Services teams to ensure secure feature implementation.
• Contribute to performance, memory‑safety, and stability improvements.
• Respond to security incidents and develop mitigation strategies.
• Create tooling, tests, and documentation for runtime components.

Required profile

• BS in Computer Science or equivalent.
• Strong programming experience in C, C++ and Java.
• Excellent debugging, critical‑thinking, and communication skills.
• Knowledge of compilers, parsers, interpreters, and assembly‑level programming (preferably ARM64).

Required skills

• C
• C++
• Java
• ARM64 assembly
• JIT compilation
• Virtual machine internals
• Memory allocators
• Garbage collection
• Fuzzing techniques
• Security architecture
• Memory‑safety concepts