Software Engineer – Operating Systems & Performance Analysis

Staff Software Engineer – Operating Systems & Performance Analysis

Join to apply for the Staff Software Engineer – Operating Systems & Performance Analysis role at Arm.

We are seeking a skilled Software Engineer with deep expertise in operating systems, particularly the Linux kernel, and strong analytical capability in workload performance and benchmarking. In this role, you will work across kernel subsystems, performance tooling, and open-source ecosystems to deliver insights and improvements that enhance system efficiency, scalability, and reliability.

• Design, develop, and optimize components within the Linux kernel or related OS layers.
• Analyze complex workloads and benchmarks to identify performance bottlenecks, scalability limits, and optimization opportunities.
• Develop methodologies, tools, and automated workflows for workload characterization and performance evaluation.
• Collaborate with cross‑functional teams to guide architectural decisions and influence software/hardware co‑design through data‑driven insights.
• Review, contribute to, and maintain open‑source software, including participation in upstream discussions and patch submission.
• Stay current with OS advancements, emerging benchmarks, and evolving open‑source community practices.
• Produce clear documentation, technical reports, and presentations that communicate findings and recommendations.

• Strong knowledge of operating systems internals, including task scheduling, power & thermal management.
• Hands‑on experience with Linux kernel development, debugging, or performance tuning.
• Proficiency in workload and benchmark analysis (e.g., profiling, tracing, instrumentation, statistical evaluation).
• Familiarity with common performance tools (e.g., perf, ftrace, BPF frameworks, perfetto, etc.).
• Experience reviewing and contributing to open‑source projects, including understanding of upstream workflows and coding standards.

• Experience with modern CPU architecture concepts (caches, memory hierarchy, NUMA).
• Knowledge of virtualization technologies or container runtimes.
• Prior contributions to the Linux kernel or major open‑source performance tools.
• Familiarity with CI/CD workflows and automated benchmarking frameworks.

At Arm, we want to build extraordinary teams. If you need an adjustment or an accommodation during the recruitment process, please email  . By sending us the requested information, you consent to its use by Arm to arrange for appropriate accommodations. All accommodation or adjustment requests will be treated with confidentiality.

Arm’s approach to hybrid working is designed to create a working environment that supports both high performance and personal wellbeing. We believe in bringing people together face‑to‑face to enable us to work at pace, whilst recognizing the value of flexibility. Within that framework, we empower teams to determine their own hybrid working patterns, depending on the work and the team’s needs.

Details of what this means for each role will be shared upon application.

Arm is an equal opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Associate

Full‑time

Engineering and Information Technology

Semiconductor Manufacturing, Software Development, and Computer Hardware Manufacturing