Senior CPU Performance Modelling Engineer: Power

Arm Limited; Cambridge; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

Arm is seeking a Sr CPU Performance Modelling Engineer to join UK CPU engineering teams to define and deliver performance and power metrics for next‑generation CPUs, while evaluating workloads and refining methodologies to stay best in class.

You will mentor junior engineers and collaborate across global teams to refine shared practices, driving improvements across emulation, simulation, and data analysis for efficient design.

Qualifications

• Strong grasp of CPU micro-architecture concepts (pipelines, caches, predictors, MMUs).
• Hands-on experience with low-level embedded C or assembly for coding, testing, optimisation, and debugging.
• Proficiency in Linux environments with strong scripting skills (Shell, Python, or Perl)

Responsibilities

• Analyse and report CPU/IP performance across the full development cycle.
• Collaborate with designers and performance engineers to improve power, performance, and area (PPA) of IPs.
• Develop and enhance infrastructure that employs emulators, simulators, and FPGAs to evaluate performance and power.
• Provide actionable insights to customers, architects, and marketing teams on how IPs perform across different scenarios and use cases.

Skills

CPU micro-architecture

Embedded C

Assembly

Linux scripting

Education

Computer Science / Electronic Engineering degree

Tools

Verilog

VHDL

RTL simulators

Job description

Arm is seeking a Sr CPU Performance Modelling Engineer to join UK CPU engineering teams to define and deliver performance and power metrics for next‑generation CPUs, while evaluating workloads and refining methodologies to stay best in class.

You will mentor junior engineers and collaborate across global teams to refine shared practices, driving improvements across emulation, simulation, and data analysis for efficient design.