Principal CPU Architect: Microarchitecture&Performance, Cambridge

Principal CPU Architect– CPU Design / Performance Modelling / Computer Architecture We are currently partnered with a leading global semiconductor and compute technology organisation developing next-generation CPU architectures for flagship mobile and compute platforms. They are looking to hire a Principal CPU Microarchitect to drive innovation across advanced processor cores, focusing on workload-driven microarchitectural design and performance modelling.Key responsibilities Define and evaluate advanced CPU microarchitectural features across fetch/decode, out-of-order execution, branch prediction, memory subsystems, cache hierarchy, and prefetching Develop and maintain cycle-accurate performance models using gem5 or equivalent simulation environmentsDrive workload analysis using performance counters, trace analysis, and profiling methodologies to identify bottlenecks and optimisation opportunities Evaluate performance improvements against industry-standard and mobile-focused benchmark workloads Key requirements MSc, PhD, or equivalent industry experience in Computer Science, Electrical Engineering, or Computer ArchitectureHands‑on experience in CPU microarchitecture development for out‑of‑order processor cores Deep expertise in at least one major architecture domain such as branch prediction, prefetching, memory systems, cache coherence, or OoO execution Strong experience with cycle‑accurate simulators suchas gem5 or proprietary CPU modelling platformsKeywords: CPU Microarchitecture / Computer Architecture / Out-of-Order Execution / gem5 / Performance Modelling / ARM / RISC-V / x86_64 / Branch Prediction / Prefetching / Cache Coherence / Workload Analysis / CPU Design / Microarchitecture / Semiconductor / HPC / AI Acceleration / Compiler OptimisationIf you are interested in this position, please send a CV to By applying to this role you understand that we may collect your personal data and store and process it in line with our privacy policy. #J-18808-Ljbffr