AI Engineer – Remote (Barcelona) | €100,000About the RoleWe are looking for a hands‑on AI Engineer to own and evolve the core “brain” service that drives a cutting‑edge AI product. This role spans architecture, development, optimization, and production operations of real‑time, multi‑agent LLM systems.Role OverviewAs an AI Engineer, you will design, build, and operate low‑latency, real‑time text and voice agent systems. You will be responsible for multi‑agent orchestration, advanced reasoning approaches, RAG engineering, and evaluation‑driven development to ensure production‑grade quality and performance.Key ResponsibilitiesDesign, build, and operate low-latency, real-time text and voice agent systemsImplement multi‑agent orchestration patterns (planner–executor–critic, routing, shared memory)Apply advanced reasoning methods (ReAct, Chain-of-Thought, Tree-/Graph-of-Thoughts where appropriate)Lead RAG engineering with strong grounding, evaluation, and observabilityDrive evaluation‑based development with monitoring, tracing,



and CI/CD gatingShip production‑grade Python services using FastAPI under strict latency and quality requirementsMinimum Qualifications5+ years of experience in ML or backend engineering in production environmentsDeep expertise in Python, FastAPI, asyncio, and production observabilityExperience with low‑latency text and/or voice systems (LiveKit, Pipecat, WebRTC, or similar)Hands‑on experience with LLM systems, agent patterns, and evaluation‑driven workflowsPrior startup experienceTech Stack HighlightsPythonFastAPIasyncioRedisPostgresvector databasesWebRTC/LiveKitSIP gatewaysDockerTerraformKubernetesOpenTelemetryDeepEvalGCPWhat We OfferWork on state‑of‑the‑art real‑time AI agent technology in healthtechHighly collaborative, senior technical teamFully remote role based in BarcelonaFun off‑sites and strong developer ergonomicsAi Engineer - €100.000 A Year - Remote Barcelona, Kingdom Of Spain, ES

📌 Ai Engineer (Barcelona)
🏢 Stott And May
📍 Barcelona