Fractile - Developer Experience Engineer

London - Hybrid+ Equity1w ago

In Office EMEA Diagnostics Artificial Intelligence Developer Experience Engineer Technical Writing CUDA Triton Documentation

Requirements

• Strong software engineering fundamentals and experience building developer-facing tooling, SDKs, APIs, or platforms that other engineers depend on. • Experience developing for inference hardware and/or GPUs (e.g. one year or more using CUDA or ROCm). • A good understanding of modern ML workloads and the practical challenges of deploying large language models to production. • An instinct for reducing the number of steps, surprises, and rough edges between a user and a working results. • Bonus PointsThese aren't requirements, but they'd make you stand out: • Experience with inference serving stacks (vLLM, SGLang, TensorRT-LLM, Triton). • A track record of contributing to or maintaining open source developer tools and ML ecosystem projects • Experience writing technical documentation and developer education content. • How We Work • Ownership and autonomy — you'll have real agency to drive your work forward • Rapid iteration — we work directly with leadership to move from idea to product on fast-moving timelines • Full-stack collaboration — hardware, software, silicon, and modelling teams work closely together • Hybrid working: 3 days onsite (London or Bristol), 2 days remote — we're open to discussing flexibility where it works for the role • A team-first mindset — the best idea gets shipped, regardless of where it comes from

Responsibilities

• Design and build the tools customers use to run, optimise, and monitor large language models on Fractile hardware • Build interfaces to diagnostic, profiling, and observability tools that help developers understand performance, debug issues, and optimise deployments • Write documentation, quickstarts, reference examples, and tutorials that define a developer's first and lasting impression of our platform • Act as the voice of the external developer inside Fractile — translating real deployment pain into roadmap priorities • Collaborate with ML compiler, runtime, systems software, and silicon teams to shape APIs and abstractions early in the design process • What We're Looking ForWe care about depth of knowledge, empathy for developers, and a genuine drive to make complex things feel simple. You'll be a strong fit if you have:

Benefits

• Shape how the world's developers experience next-generation AI hardware • A collaborative culture built on curiosity, initiative, and technical depth • Modern offices in London and Bristol — choose your base • Competitive salary and equity in a fast-growing company • Export Control & Security ClearanceCertain roles may involve working on technologies subject to export restrictions. Applicants may be required to undergo additional eligibility checks to ensure compliance with applicable law. • Export Control & Security Clearance • Fractile is committed to building a diverse and inclusive team. We welcome applications from people of all backgrounds and actively encourage candidates from underrepresented groups to apply. • Ready to apply? Send us your CV and a brief note on what excites you about this role.