Performance Systems Engineer - Arm Runtimes & Compilers

Arm; Manchester; On-site; GBP 97,300 - 131,700; Full time

Job summary

Arm is seeking an experienced performance engineer to advance compilers and managed runtimes, optimizing language workloads on Arm architecture. You will identify bottlenecks, work on runtime/compiler improvements, and collaborate with hardware teams to refine CPUs and microarchitectures.

You will engage with open-source communities, contribute to performance testing frameworks, and help shape future language implementations across Java, JavaScript, Python, Rust and more.

Qualifications

• Experience working on managed runtimes, compilers or similar technologies.
• Strong programming skills in C/C++.
• Familiar with performance analysis tools at an assembly level.
• Knowledge of and interest in improving computer architecture and microarchitecture such as CPU pipelines and cache hierarchies.
• Proficiency in software development and methodologies (coding, testing, debugging, reviewing).

Responsibilities

• Identify and implement changes to compilers and managed runtimes to improve the performance of selected workloads and better support Arm architectural features and CPU designs.
• Identify bottlenecks in managed language workloads/benchmarks using profiling tools.
• Collaborate with colleagues across Arm to improve the support for the Arm Architecture and CPUs.
• Implement new runtime or compile features and fine-tune existing ones (e.g., garbage collectors, interpreters, optimisation passes, intrinsics).
• Contribute to open-source software projects and engage with open-source community.
• Help develop the project automated functionality and performance testing frameworks.

Skills

Managed runtimes/compilers experience

C/C++

Assembly-level profiling

Computer architecture knowledge

Software development practices

Job description

Arm is seeking an experienced performance engineer to advance compilers and managed runtimes, optimizing language workloads on Arm architecture. You will identify bottlenecks, work on runtime/compiler improvements, and collaborate with hardware teams to refine CPUs and microarchitectures.

You will engage with open-source communities, contribute to performance testing frameworks, and help shape future language implementations across Java, JavaScript, Python, Rust and more.