Senior Processor Architect

Fractile is building silicon, systems and software which will redefine the frontier of AI: running the world’s most advanced models at radically higher speed and lower cost. We have an exceptional team across hardware and software capable of bringing about this change, and we are growing fast to meet demand and deliver our product at scale. As Processor Architect, you'll define and drive the architecture of our core compute engines, ISA definitions and programming models through to memory hierarchies, and on-chip interconnects. This isn't just about hitting PPA targets on a spreadsheet; you'll work closely with logical design, physical design, and verification teams to translate architectural intent into working silicon that performs in the real world. Expect to be hands-on in performance modelling, detailed specification writing, bottleneck analysis, pre and post-silicon validation. You'll be the driving force behind the computational heart of our products ensuring every cycle counts and every watt is well spent. Key Responsibilities Define and own the compute engine architecture specifications, balancing performance, flexibility, power, area, and design complexity. Lead architectural exploration from early concept through to specification, coordinating with modelling, implementation, verification, and physical design teams. Specify execution units, memory hierarchy, instruction sets and flow — making principled trade-offs at every level. Help build and maintain performance models and simulators to guide architectural decisions with data.