Senior Software Engineer

UK, Remote
Competitive salary for an exciting start-up
Job ID: 481091

A well-funded AI engineering organisation is hiring a Senior Software Engineer to deploy, extend, and optimise a leading open-source LLM inference engine, across two core programmes: a scaling inference initiative and a high-assurance/regulated-environment initiative.

What you’ll do

  • Deploy, instrument, and monitor open-weight models served via the inference engine
  • Build new engine features to support novel hardware architectures
  • Extend the engine for accuracy, explainability, and accountability in regulated settings
  • Contribute upstream to the relevant open-source community
  • Optimise inference performance (latency, throughput, hardware utilisation)

What they’re looking for

  • Senior-level Python + low-level programming (C/C++, Rust, CUDA)
  • Direct contributions to a major inference/serving engine or similar ML infra project (e.g. PyTorch, Ray)
  • Strong grasp of LLM inference internals (KV caching, batching, quantisation)
  • Experience upstreaming to active OSS communities
  • Hardware accelerator optimisation experience (GPU/TPU/etc.)
  • Genuine enthusiasm for AI-assisted development (LLMs/agents as core tools)

Nice to have: regulated-environment experience, AI safety involvement, MLOps/CI/CD depth.

If you think this role would be a good fit for you, please reach out to Charles Duran.