Jobs, fresher vacancy - AI Engineer • UK

Company: Axiōma Search

UK

AI EngineerFrontier AI | London or ParisCompensation: Up to £200k + equity packageAboutFrontier AI startup building state-of-the-art agentic systems that can execute real digital work inside enterprise software. Well-funded, with a value prop combining cutting-edge research (in computer use and proprietary models) with forward-deployed implementation alongside enterprise clients.You'd be joining the Agent team – a small, high-calibre group building the systems and tooling that actually makes agents work in production. This is engineering embedded in research - the model team trains the models; the agent team builds everything around them.What you'll doBuild and improve agent logic: planning, tool use, skills, memory, orchestrationDesign and implement retrieval systems (RAG) that allow agents to access and reason over large knowledge bases and enterprise dataBuild low-latency, reliable entity retrieval pipelines across structured and unstructured data sourcesWork on internal and academic benchmarks to measure and push agent performanceTranslate research ideas into working systems (tool calling, new agent capabilities, training signals)Build and evolve the in-house agent stack used across the organisationPartner closely with researchers to turn ideas into production-ready agent behaviourIterate quickly, experiment often, and own problems end-to-endWhat you'll needSenior-level engineering experience from a high-bar environment (top AI lab, scale-up, or Big Tech)Strong software engineering fundamentals and system design skillsExperience building RAG or large-scale retrieval systems in production (latency, throughput, accuracy, relevance)Interest in agentic AI - prior agent experience is helpful but not mandatoryProactive, autonomous, and creative - you spot gaps and fill themComfortable working in fast-moving, loosely specified problem spacesThis is an opportunity to build agentic AI at the frontier - not writing papers, but shipping systems that push the boundaries of what agents can do.Shortlisted candidates will be contacted within 48 hours.