Senior Principal Time Interconnect Architect

Job
Date posted 19/10/2026
Location Cambridge, United Kingdom;
Sheffield, United Kingdom
Category Architecture

An outstanding opportunity for a motivated person to contribute to the strategic direction of Arm-based systems, from smartphones to cars to datacenters. We are looking for a motivated architect to lead the definition and demonstration of Quality of Service capabilities across our IP portfolio and systems.

• Specify Quality of Service requirements across our IP portfolio necessary to meet system-level requirements for real-time predictability, power management, performance, freedom from interference, and “noisy neighbor” service level containment.
• Work with solution architects to distil QoS requirements and specify QoS aspects of system architecture that meet those requirements.
• Collaborate with architects for AMBA and the Arm architecture as required to enable future QoS capabilities.
• Define and lead methodologies for demonstrating that QoS architecture meets requirements, both in theory and in real systems.

• Experience of building systems with robust QoS capabilities, including meeting requirements for hard real-time devices, in conjunction with some of the other QoS considerations listed in Responsibilities above.
• Strong communication, collaboration and interpersonal skills, with an ability to build consensus across multiple teams on technical topics.
• Understanding of QoS theory and ability to consider and evaluate alternative approaches.
• Experience of RTL design, sufficient to understand the impact on system area, speed and power of architectural decisions.
• Proficiency in coding in Python or similar scripting language.
• Self-motivated to set and achieve goals.

• Experience in performance modelling.
• Experience in systems power management.
• Experience in systems architecture across client, automotive and datacenter.

Your work will be embedded in the world's most advanced digital products, with influence and visibility across abreadth of technologies central to the entire industry. You will work in a team of highly capable, innovative, and committed engineers in a supportive, innovative environment.

Arm’s Cambridge office is the global headquarters for Arm, and home to key architects and technologists that define the future of Arm technology. Cambridge is the UK’s principal hub for Silicon design and technology.

Arm's Sheffield office enjoys a collaborative and inclusive atmosphere and is home to a range of diverse teams. The area has a reasonable cost of living, a great place to live, and easy access to the Peak District National Park.

At Arm, we believe progress happens when people are empowered to think bigger and push beyond what seems possible. Our 10x mindset is about curiosity, ambition and creating impact that will be used by millions. We learn fast, prioritise collaboration and turn bold ideas into real technology. We look for people who are inspired by this way of working and want to grow in an environment where bold ideas are welcomed.

Discover how the 10x mindset shapes life at Arm:

At Arm, we embrace the benefits AI can bring, including in recruitment. You may use AI to support your preparation, such as improving the clarity of written responses, practicing interview questions, or learning more about our industry. However, your application and interview responses must reflect your own thinking, experience, and abilities. We want to understand your authentic perspective, creativity, and approach to problem solving.

As such, you may not use AI to complete assigned tasks as part of any assessments. If you plan to use AI-supported or assistive…