Engineering · Mid → Senior
You ship production LLM features end-to-end — retrieval, prompting, tool-calling, evaluation and the boring-but-critical plumbing that makes them fast, cheap and reliable. You care about latency, cost and correctness in equal measure.
Location
Remote UK / Hybrid Rochdale
Type
Full-time
Salary
£75k – £115k
Team
Engineering
The Work
Retrieval-augmented features that turn messy business documents into decisions.
Tool-calling agents that safely operate inside our customers' workflows.
Evaluation datasets and regression tests for every prompt in production.
Instrumentation that lets us reason about cost, latency and quality per feature.
Responsibilities
Design and ship LLM-powered features across AutoThink products.
Own the full lifecycle: prompt → evaluation → deployment → monitoring.
Reduce cost and latency without sacrificing quality.
Mentor engineers new to LLM work.
Requirements
4+ years software engineering; 1+ shipping LLM features to real users.
Fluent in Python or TypeScript; comfortable across both.
Understand embeddings, retrieval, prompt design and evaluation.
Rigorous about testing, observability and cost.
Right to work in the UK.
Nice to Have
Experience with fine-tuning, distillation or model routing.
Contributed to LangChain, LlamaIndex, DSPy or similar.
Domain experience in finance, legal, HR or sales tech.
Stack
Where You'll Ship
Apply
Tell us why this role fits you. We read every application personally — usually within 5 working days.