Evermind | Back-end Developer
About this role
RAG systems, agent workflows, evaluation suites, and production deployments into client environments. You will choose the right architecture, ship it in 4 to 8 weeks, and write handoff docs clear enough that client teams can own it after we leave. AI-first spec How AI fits into this role. Every project starts with "what is the right AI architecture", not "what is the CRUD model". You will choose between RAG and fine-tuning, build evaluation suites that actually catch regressions, ship to production, and own the feedback loop. Claude writes your first draft of most code. You will be using agent frameworks (LangGraph, Mastra, or Claude Code Agent SDK) for real production workloads, not demos. Tools you'll use daily Claude (pair programming and architecture decisions) Python with FastAPI or TypeScript with Hono PGVector, Pinecone, or Qdrant LangGraph or Mastra for agents LangSmith or Phoenix for evaluations What you'll do Design and ship RAG systems, agent workflows, and LLM-powered APIs Integrate with client data sources (warehouses, document stores, third-party APIs) Build evaluation suites that catch regressions before they reach production Ship to production in client environments (AWS, GCP, Azure, on-prem) Write clear handoff documentation so clients can run the system after we leave Help clients choose the right tool for the problem, not whatever is trending What we're looking for 4+ years shipping production backend systems Strong Python or TypeScript / Node.js for API development Production experience with at least one LLM provider (OpenAI, Anthropic, open source) Database and data pipeline experience (Postgres, vector databases, ETL) Based in the UK, eligible to work without sponsorship Nice to have RAG or embeddings production experience Agent frameworks (LangGraph, Mastra, Claude Code Agent SDK) Evaluation and observability tools (LangSmith, Phoenix, Braintrust) Fine-tuning experience (LoRA, SFT) Experience in regulated industries (fintech, healthtech, legaltech) Ready to apply? Drop us your CV and a short cover note. We read every application and reply within one working day.
What this role is, and what else it is called
Employers in the UK advertise this kind of work as Web Developer, Software Engineer, Software Developer and PHP Web Developer too, so it is worth searching more than one wording. It is a mid-level Software Engineering role in the UK, advertised as fully remote, so it is open to candidates working from home.
About hiring at Evermind Digital
Evermind Digital has 3 other live technology roles on its careers page. Of those, 100% are advertised as fully remote and 0% as hybrid. Elsewhere in its adverts Evermind Digital asks for React and Figma. We have been observing Evermind Digital hiring technology staff since July 2026. See all Evermind Digital roles, salaries and stack.
How this role compares to the market
1,968 live UK roles list Python right now, from 583 employers. The median advertised salary is £80,000; 30% are advertised as remote. Browse Python roles.
713 live UK roles list TypeScript right now, from 270 employers. The median advertised salary is £80,000; 46% are advertised as remote. Browse TypeScript roles.
Market figures are today's snapshot of live UK roles on employer careers pages; see hiring trends.
Technologies mentioned
Detected on Evermind Digital's careers page. ProdReady Recruitment lists this vacancy as an aggregator and is not the employer; applications go to the employer's own site.