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Senior Performance Tools Engineer

Arm -
Cambridge

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Job details

£73,500 - £99,500 a year

Qualifications

SQL
C++
C
JavaScript
SQLite
Python
Debugging
HTML

Full job description

Job ID 2026-17681 Date posted Jul. 14, 2026 Location Cambridge, United Kingdom Category Software Engineering

Job Overview:

We build Arm’s Telemetry solution—a set of open‑source reference tools that demonstrate Arm’s performance methodologies across compute subsystems (CPU, interconnects, memory systems, and more). We collaborate with architects across Arm IP groups to turn their methodologies into practical tooling. Our work enables Arm’s internal performance teams, partners, and the wider open‑source community.

Responsibilities:

Build & evolve Telemetry solution so developers can apply performance methodologies on Arm and act on performance signals.
Work with architects & analysis teams to translate findings and requirements into features, tests, examples and documentation.
Validate performance methodologies with synthetic workloads and targeted microbenchmarks (occasionally in Arm assembly).
Partner with kernel and firmware teams to ensure the right performance‑measurement primitives (PMUs, perf_event interfaces, etc) exist and are usable.

Required Skills and Experience :

Strong Python for tooling, data processing, and workflow automation.
Comfortable in C/C++ to reason across kernel and userspace low level performance systems.
Proficient debugging & problem‑solving skills.
Experience shipping developer‑facing tools and iterating with real users.

“Nice To Have” Skills and Experience :

SQL (e.g., SQLite) for trace querying/analysis.
Web technologies (TS/JS, HTML, WebSocket) for static web apps frontend.
Exposure to hardware system architecture (pipelines, caches, MMUs, interconnects, timers, multithreading).
Open‑source contributions and modern CI/CD experience.
Good understanding of OS primitives (processes, threads, locks, virtual memory) and how they relate to application performance.
Assembly basics and familiarity with Arm architecture.

In return:

You will have the opportunity to learn about and influence the latest Arm architecture features, working closely with highly skilled engineering teams on ground-breaking technology. You will collaborate with diverse compiler and runtime teams and open-source communities, contributing to language implementations used by millions of developers worldwide. You will be empowered to continually identify and roll out improvements to our ways of working.

If skilled worker sponsorship is required, Arm will meet costs associated with sponsorship for the employer only. All fees associated with the individual’s application e.g. visa application fee and Immigration Health Surcharge, will be the responsibility of the successful candidate.

#LI-KD1

Accommodations at Arm

At Arm, we want to build extraordinary teams. If you need an adjustment or an accommodation during the recruitment process, please email [email protected]. To note, 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, and information concerning these requests will only be disclosed as necessary to provide the accommodation. Although this is not an exhaustive list, examples of support include breaks between interviews, having documents read aloud, or office accessibility. Please email us about anything we can do to accommodate you during the recruitment process.

Hybrid Working at Arm

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 groups/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. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution. Please talk to us to find out more about what this could look like for you.

Equal Opportunities at Arm

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 don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Salary Range:

£73,500

£99,500

per year

Apply Now

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