Lead Data Engineer

Lead Data Engineer, Agentic AI / GCP, Westminster, London KEY POINTS Lead Data Engineer at a seed stage AI startup automating the operational side of UK lettings and estate agencies£90,000 to £130,000 base plus equityFull time, permanent, onsite 4 days a week in Westminster, LondonOwn the data platform behind an agentic AI product, across Postgres, MongoDB and Qdrant on Google CloudData that feeds agents in production, not just dashboardsClaude Code and agentic development used every dayDirect access to the founders and a small team to build outRight to work in the UK required, no sponsorship available WHAT YOU WOULD ACTUALLY BE BUILDING Our client is building the AI system of action for UK lettings and estate agencies. It sits on top of the agency's CRM and runs the operational work: prospecting, viewings, maintenance, compliance and arrears. A lot of that work runs through their voice agent, which picks up the phone when the branch can't. Every one of those agents depends on the right data, in the right shape, at the right time. That data platform is yours to own. WHY THE DATA PLATFORM MATTERS HERE The product is built on agentic pipelines. The quality of what the agents do comes down to the data underneath them: what they can retrieve, how fresh it is, and whether you can measure when they get it wrong. The stack spans Postgres, MongoDB and Qdrant on Google Cloud, with data coming in from agency CRMs and live operational workflows. You will know what it takes to make that reliable as the business scales across agencies. THE ROLE Own the data platform end to end, from ingestion through to what the agents consumeDesign and build reliable pipelines across relational, document and vector storesBuild the retrieval and embedding pipelines that power the agentsPut in place the data quality, monitoring and evaluation that show when agents go wrongLead and grow a small data team while staying hands onWork directly with engineering leadership and the founders on data strategySet the standard for building data systems with agentic AI tooling ESSENTIAL EXPERIENCE Hands on data engineering experience at lead level, or very close to itA first class degree from a Russell Group university, or a 2:1 from Oxford, Cambridge, Imperial, UCL or Warwick, in Computer Science, Engineering, Maths or a related fieldReal experience building data systems for LLM or agentic products in productionRetrieval, embedding or vector database experienceStrong Python and SQL, with experience across Postgres and MongoDBCloud experience, ideally Google CloudA startup or 0 to 1 background, or a standout record at a top firmUses Claude Code and agentic workflows as standardRight to work in the UK, no sponsorship availableAble to work onsite in Westminster 4 days a week NICE TO HAVE Qdrant specificallyOrchestration and modelling tools such as dbt, Airflow or DagsterEvent or streaming dataAI evaluation frameworks SALARY AND BENEFITS £90,000 to £130,000 base, depending on experienceEquityReal technical ownership from day oneDirect access to the foundersPermanent, full time, onsite 4 days a week in Westminster TO APPLY Please apply via this advert or email Daniel.Jones@searchability.com directly. For further information, call 0203 763 3888 or 07704 152 638. By applying, you consent to us processing and submitting your application (subject to suitability) for this vacancy only.