Senior Principal CPU Architect – CPU Architecture / Microarchitecture / ISA / Performance Analysis / Hardware-Software Co-Design

Senior Principal CPU Architect – CPU Architecture / Microarchitecture / ISA / Performance Analysis / Hardware-Software Co-Design

We are currently partnered with a global semiconductor and advanced computing technology organisation developing next-generation high-performance processor architectures.

As part of their continued investment in future CPU technologies, they are looking to appoint a highly experienced Senior Principal CPU Architect to help define the next generations of high-performance CPU architecture.

Key responsibilities

• Lead architectural pathfinding for next-generation CPU designs and technologies
• Define and evaluate advanced CPU microarchitectural concepts
• Develop architectural approaches covering fetch, decode, execution pipelines, out-of-order scheduling, and multi-level memory hierarchies
• Evaluate and define new instruction-set capabilities, including vector, matrix, and specialised compute instructions
• Analyse emerging workloads and identify software and application bottlenecks
• Translate workload and software requirements into future microarchitectural capabilities
• Work closely with compiler, operating-system, and application-software teams on hardware/software co-design
• Develop and guide C++-and Python-based cycle-accurate CPU simulation models

Key requirements

• 10+ years of relevant industry experience in high-performance CPU architecture or closely related processor architecture roles
• Extensive experience with high-performance CPU architecture and microarchitecture
• Deep understanding of out-of-order execution and modern superscalar processor design
• Strong knowledge of branch prediction, register renaming, speculative execution, and execution pipelines
• Strong understanding of cache hierarchies and memory-system architecture
• Deep knowledge of cache coherency and coherency protocols
• Strong understanding of instruction-set architecture and ISA design
• Knowledge of exception models, memory consistency, and virtualisation
• Experience analysing workloads using profiling tools, performance counters, and simulation traces
• Familiarity with performance-analysis environments such as VTune, Perf,

Keywords

Senior Principal CPU Architect / Principal CPU Architect / CPU Architect / Principal Processor Architect / CPU Architecture / Processor Architecture / High-Performance CPU / High-Performance Computing / CPU Microarchitecture / Microarchitecture / Out-of-Order / OoO / Superscalar / Speculative Execution / Branch Prediction / Register Renaming / Instruction Scheduling / Fetch / Decode / Execution Pipeline / Memory Hierarchy / Cache Architecture / Cache Coherency / Coherency Protocols / Memory Consistency / Virtualisation / ISA / Instruction Set Architecture / ISA Design / ISA Extensions / Vector Extensions / Matrix Extensions / Specialised Instructions / Hardware Software Co-Design / Compiler Co-Design / Workload Analysis / Workload Profiling / Performance Analysis / Performance Counters / Simulation / Cycle-Accurate Simulation / Architectural Simulator / CPU Simulator / Performance Modelling / C / C++ / Python / VTune / Perf / SimPoints / LLVM / GCC / x86 / Arm / RISC-V / AI Workloads / Generative AI / Large Language Models / LLM / Graph Analytics / Confidential Computing

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