> Markdown version of [/jobs/ext/2729793-rust-software-engineer](https://www.wearedevelopers.com/jobs/ext/2729793-rust-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Rust Software Engineer - **Company:** Fractile - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Reference Implementation, Artificial Intelligence, C++ (Programming Language), Data Centers, Extract Transform Load (ETL), Programming Tools, Device Drivers, Firmware, Linux Kernel, Open Source Technology, Software Organization, JavaScript Pagination Plugin, Real Time Systems, Caching, Information Technology - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/rust-software-engineer-fractile-8291425 ## About the Role You are energised by unfamiliar problems. You research the state of the art, form your own views, and implement them. You may be a senior engineer coming from a systems language background who has built genuine Rust proficiency through open-source or personal projects, or you may have deep experience serving AI workloads at scale. Either way, you are comfortable making sense of a problem for the first time and working autonomously in areas of ambiguity. You have a solid computer science foundation and the ability to read unfamiliar code quickly, understand it, and identify where things can be better., * Strong Rust skills - or senior-level experience in a systems language (C, C++) with demonstrable Rust proficiency via open source or personal projects * Experience serving AI workloads (e.g. vLLM, SGLang, or Rust equivalents), OR deep systems-level experience in areas such as low-latency data movement, paging, caching, or real-time processing * Solid computer science fundamentals and the ability to read unfamiliar code, understand it quickly, and identify problem areas * Comfort working autonomously in areas of ambiguity Nice to Have * Experience with AI inference frameworks or ML accelerator architectures * Prior startup or small-team experience * A portfolio of Rust projects you can share ## Description About the Software organisation at Fractile Developer Experience sits within the Software organisation at Fractile, which is responsible for developing a full software stack for our groundbreaking AI inference systems. That's everything from ML compilers, device drivers and systems firmware, application level runtime and ecosystem integrations, ML and compute libraries, great developer tooling and a full portfolio of simulators, through to datacenter scale workload deployment solutions. At Fractile, we know that a fantastic software stack is a critical and central part of any AI inference solution and it sits at the heart of everything we're doing. About the team and role We are building a new Rust engineering team from scratch - greenfield software, with real scope to influence architecture, engineering practices, and direction from day one. The team works in a genuinely interdisciplinary environment where software engineers shape hardware decisions and vice versa. As a Rust Engineer you will build a reference implementation of a full AI inference stack in Rust, tuned to Fractile's custom hardware, write a Linux kernel driver in Rust, and develop cloud-based tooling for data centre deployments. You will research the state of the art in AI inference, bring new ideas into the codebase, and collaborate closely with hardware engineers in a true co-design loop. 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