Principal/Senior Principal Engineer Arm ARM

Principal/Senior Principal Engineer Arm ARM Overview

This senior engineering position sits within Arm’s Architecture Technology Group and focuses on the Arm Architecture Reference Manual, a flagship specification that plays a central role in the wider Arm ecosystem. The role is intended for someone who can contribute at a high level to the manual’s ongoing development, quality, and delivery, while also helping shape the tools and processes that support it. It combines architecture, engineering, documentation, and tooling, and offers the chance to influence work that has impact across Arm and its partner network.

Working alongside the Technical Director for the Arm ARM, you will help own important technical aspects of the production pipeline, including the systems used to develop, validate, quality-check, and publish the manual. The position also involves improving how the manual is created and delivered, supporting broader transformation efforts, and helping establish a modern, scalable specification framework that fits Arm’s future architecture strategy.

What you will do

• Help define and deliver the long-term direction for the Arm ARM, with a focus on accuracy, accessibility, consistency, and overall quality.
• Take the lead on cross-functional initiatives involving architects, engineering teams, and external partners to improve the product and its standards.
• Assess and sign off plans for introducing new architecture content and new quality-assurance scenarios.
• Drive the maintenance approach for the manual, working closely with architects and engineers on content restructuring and continuous quality improvement.
• Encourage the use of supporting tools, validation systems, and digital publishing methods.
• Guide and mentor technical contributors, helping build stronger architecture knowledge across the teams involved.
• Act as a senior technical authority within ATG and help move forward key internal change programmes.
• Contribute to the creation of a modern, scalable specification framework aligned with Arm’s future architecture plans.
• Support the goal of making the Arm ARM widely recognised for being clear, correct, and easy to use.

What you need

• A bachelor’s or master’s degree in computer science, computer engineering, or equivalent experience gained in practice.
• A strong grasp of Arm architecture and ISA fundamentals, plus the ability to quickly understand new architectural developments.
• Demonstrated technical leadership, including experience working with external partners and in customer-facing situations.
• Strong interpersonal skills and the ability to work effectively across different teams and stakeholders.
• Experience with authorship workflows, specification platforms, or the creation of high-quality technical documentation would be an advantage.
• Knowledge of standard software engineering practices would be helpful.
• Practical experience with Unix scripting, Python, Git, or Gerrit would be beneficial.
• Exposure to ASL, Arm machine-readable specifications, or modelling work would also be useful.

Additional information

Arm says it will provide reasonable adjustments for candidates with disabilities during the application or interview process, and also to support the performance of essential job duties and access to employment-related benefits and privileges. Candidates who need accommodation are encouraged to contact the company to request it.

A relocation package is available for this role, and it includes visa sponsorship support for candidates who require it.

Arm’s hybrid working model is designed to support both strong performance and personal wellbeing. The company aims to bring people together in person where it helps teams work effectively, while still allowing flexibility. Hybrid arrangements are set by each team depending on the nature of the work and team needs, and the exact setup for this role will be shared during the application process. In some situations, flexibility may be limited by local legal, regulatory, tax, or other considerations, and Arm will work with candidates to find the best possible arrangement.

Arm is an equal opportunity employer and says it is committed to a respectful workplace where opportunities are open to all applicants and colleagues. The company states that it does not discriminate on the basis of race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

The advertised salary range for this position is £168,300 to £227,700 per year.

About working at Arm

Arm describes its software engineering environment as one where engineers help shape the future of technology across areas such as physical IP, AI and machine learning, cloud architecture, automotive technology, compilers, and AI-enabled IoT. The company says its work can influence almost every connected device and many industries worldwide, from healthcare and infrastructure to virtual reality.

Arm also highlights its broader rewards and benefits, including support for health and wellbeing, encouragement to maintain a healthy work-life balance, financial rewards beyond base pay, and opportunities for professional and personal development within a supportive community.

The company presents its office culture as collaborative and innovative, with an emphasis on working together as one team while valuing diversity and shared progress.

How to apply

Applicants can submit their application through Arm’s careers site using the job application process for this role. The page also provides options to save the job, view the location, and access Arm’s hiring process information.

Degree Requirement: Bachelor’s

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