Who you are
- Experience: 5+ years building production software, including at least one agent or LLM-powered capability you took end to end and still owned once it was live
- Agents: real depth in orchestration and context engineering — tool contracts, memory, RAG, multi-agent design — with Mastra, ai-sdk, LangGraph or similar. You've integrated agents into a real product and its authorization model, not built prototypes for someone else to productionise
- Evaluation: you know how to make a non-deterministic system measurable, from test cases built on real data to regression suites and human review, and you can tell the difference between a model that improved and a benchmark that got easier
- Production: you own what you ship. Reading traces, diagnosing failure modes, tuning cost and latency, handling provider rate limits and fallback without drama
- Backend: You have experience with TypeScript and/or Python
- Platform mindset: you build for other engineers as much as for end users, and the standards you set get adopted because people trust you, not because they are written down




- Pragmatic: you start from the business outcome, choose the deterministic solution when it's the right one, and know when good enough is good enough
- Experience in fintech, private markets, or another regulated, document-heavy domain is a plus, as is working under EU data-residency constraints
What the job involves
- As a Senior Applied AI Engineer on our AI Platform team, you take AI at bunch from working to relied upon
- We already run AI in production — a document extraction pipeline live in fund operations, agent workflows on Mastra, evaluations, and multi-provider fallback inside EU data residency
- Fund operations run on documents, deadlines and numbers that have to be right — subscription documents to parse, capital calls to chase, portfolio data to reconcile
- You build on that foundation: more agents taking that work off people's hands, the evaluations that prove they can be trus

📌 Senior Applied AI Engineer (España)
🏢 Bunch
📍 España