Jobs at Fractile

Develop the ML compiler stack for AI acceleration hardware and optimize performance for large language models in a collaborative environment.

Develop Rust server software for AI inference stack, collaborate with hardware team, and conduct research for performance optimization.

Develop pre-silicon models for AI hardware, support software development, and collaborate on architecture and performance evaluation.

Develop embedded firmware and systems software for management controllers, ensuring the reliability and safety of production-critical systems. Collaborate closely with hardware teams.

As a Senior Simulation Engineer, you'll build a QEMU-based functional simulator for AI accelerator hardware and collaborate with engineers to ensure software correctness and system-level performance.

The role involves developing and implementing high-performance digital systems, ensuring clarity in RTL specifications, collaborating with design teams, and maintaining documentation and standards compliance.

The Senior ML Runtime Engineer will integrate AI acceleration hardware with open source projects, develop high-performance Rust runtime, and collaborate on hardware-software design.

Responsible for implementing complex IC physical designs, collaborating with teams to optimize performance, power, and area while ensuring design integrity and manufacturability.

The role involves optimizing ML kernels, building low-level control paths, and collaborating with various teams to enhance performance.

Develop cutting-edge AI accelerator solutions by improving developer workflows, managing CI/CD pipelines, optimizing Bazel builds, and extending system support.

Own the monthly group management accounts cycle (UK, Taiwan, US): consolidation, multi-currency translation, intercompany reconciliations, month-end close, FRS 102 treatments. Lead finance systems (Xero today, NetSuite migration), maintain chart of accounts, automate reporting, support budgeting, forecasting, cashflow, AP oversight, R&D tax credits, and process documentation.

Produce consolidated monthly management accounts for a multi-entity group, own month-end close and finance systems (Xero, NetSuite migration), manage intercompany and multi-currency reconciliations, support budget vs. actuals, cashflow forecasting and FP&A growth, help run day-to-day finance operations including AP and compliance, and identify automation opportunities to improve the finance function.

Build and maintain infrastructure and developer tooling for frontend and backend silicon teams. Integrate and support EDA tools and build systems, improve reproducible/cacheable workflows, deploy and manage cloud or on-prem compute via IaC, monitor resource usage, and optimize engineering workloads.

Own and design Bazel rules and extensions to scale a multi-language monorepo (Python, C++, Rust, SystemVerilog) for ML, kernel, and simulation workloads. Build reproducible multi-language build pipelines, optimise CI across large compute clusters, define developer build experience, and contribute upstream to Bazel rules.

Hands-on People Operations & Compliance Administrator responsible for HR administration, employment contracts, right-to-work checks, visa sponsorship and UKVI submissions, and export control compliance documentation (TCPs, export declarations, deemed export screening). Maintain HRIS and immigration tracker, coordinate with solicitors, and keep audit-ready records while escalating compliance issues to Head of People & Talent. Operational, execution-focused role in a fast-growing AI hardware startup.

Develop high-fidelity pre-silicon models (SystemC/C++) for an AI accelerator to drive architectural exploration, functional and performance modelling, verification, and early software development on virtual platforms across hardware-software co-design.

Build and run functional and performance models of processor and accelerator microarchitecture (C++/SystemC), explore architectural trade-offs, develop functional models for verification, contribute simulation and tooling infrastructure, and collaborate across RTL, verification, physical design and system architecture for ML inference workloads.

As a Senior System Architect, you will design system architectures for AI applications, ensuring integration and performance from concept to production by collaborating with hardware and software teams.

The Lead Physical Design Engineer will implement complex IC designs, collaborating across teams to optimize performance, power, and area while ensuring manufacturability and design integrity.

The Physical Design Engineer will implement ASIC/SoC designs, perform timing analysis, maintain design integrity, and collaborate with cross-functional teams.