CPU Performance Microarchitecture Exploration Engineer

ARM • Raleigh, NC

4d

About The Position

About Arm Arm is the industry's leading supplier of microprocessor technology, offering the widest range of microprocessor cores to address the performance, power, and cost requirements for almost all application markets. With a vibrant ecosystem of over 1,000 partners and more than 150 billion processors shipped, our technology is at the heart of a computing and connectivity revolution that continues to transform the way people live and businesses operate. The CPU Performance team is part of Arm's worldwide CPU development group. This diverse, engineering-focused team defines, designs, and validates Arm processor IP, collaborating with the world's leading technology companies to enable innovation across billions of devices. Role Overview We are seeking a Senior uArch Exploration Engineer to join our CPU Performance team in Austin or Raleigh. In this role, you will focus on defining the microarchitecture for Arm's next-generation Cortex-X and Neoverse CPUs. You will help shape CPU designs by building and analyzing performance models, studying workloads, and evaluating new ideas for performance, power, and efficiency. This is a highly collaborative role, working with CPU architects, designers, and partners to influence future CPU directions.

Requirements

• BS/MS in Computer Science, Electrical Engineering, or Computer Engineering.
• 5-10 years of experience in CPU microarchitecture development, performance modeling, or workload analysis.
• Strong understanding of CPU microarchitecture fundamentals and performance/power/area trade-offs.
• Hands-on experience with simulators (cycle-accurate, functional) and modeling infrastructure.
• Proficiency in C++ and Python.
• Strong analytical, problem-solving, and communication skills.

Nice To Haves

• Experience with workload characterization and benchmarking.
• Familiarity with advanced software engineering practices and profiling tools.
• Exposure to customer or partner-facing technical discussions.

Responsibilities

• Define and explore new CPU microarchitecture concepts for performance, power, and efficiency.
• Build and refine performance models (cycle-accurate and functional simulators).
• Analyze workloads and performance sensitivities to guide design trade-offs.
• Collaborate with architects and design engineers to translate ideas into practical designs.
• Engage with partners to understand performance requirements and workload expectations.
• Present technical analysis and recommendations clearly across diverse audiences.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees