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Fractile

Senior ML Runtime Engineer

Bristol
Posted 7 months ago
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At Fractile, we’re taking a revolutionary approach to computing to run the world’s largest language models 100x faster than existing systems. Our fast-growing team is working at the cutting edge of the latest AI developments in both hardware and software. Want to get involved?

We are looking for Senior ML Runtime Engineers with experience of key ML software ecosystem components to work on inference server integrations and the runtime stack of our ground-breaking AI accelerators. You can be based in either our London office or Bristol, the choice is yours.

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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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In this role, you will:

  • Integrate Fractile's innovative AI acceleration hardware with leading open source projects like PyTorch, vLLM, and SGLang
  • Develop our underlying high-performance Rust runtime
  • Work with hardware, lower-level software, and ML engineers in a highly collaborative hardware-software co-design methodology

It would be great if you have:

  • Proven experience of working with major ML software ecosystem projects
  • A good understanding of the latest ML workloads and inference deployment challenges
  • Excellent Python and Rust skills and solid experience of industry standard development tools and technologies
  • A creative and innovative mindset, and a willingness to take ownership and drive results in a fast-paced environment
  • Computer Science, Electronic Engineering, Maths, Physics, or related degree and 5+ years of industry experience

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You may also have:

  • Experience of working with GPUs or other machine learning accelerators
  • Previous experience in a startup or small team environment
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Skills

Machine Learning
Rust
Python
AI
Software Development
Inference Deployment
Open Source
Collaboration
High-Performance Computing
Creative Mindset
Ownership
Fast-Paced Environment
GPUs
AI Accelerators
Startup Experience
ML Ecosystem

Location

Bristol, England, United Kingdom

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