Our client, a top IT consultancy, is partnering with a leading financial services organisation, to build a dedicated Generative AI hub in Valencia. We are looking for a Senior Backend Developer to be one of the founding engineers of this hub. You will help define the technical foundations of an Agentic AI platform built on Azure, contributing from day one to architecture decisions, infrastructure setup, and the delivery of production‑grade AI‑powered services for the financial sector.
Design and build the backend services and APIs that power the organisation's Generative AI platform, using Node.js or .NET 8 (ASP.NET Core / EF Core)
Implement data ingestion, chunking, cleaning and quality checks pipelines using Azure Data Factory and Azure Document Intelligence
Build and maintain vector indexing and semantic search capabilities via Azure Cognitive Search and LightRAG
Build and integrate agent tooling using Langchain, Langgraph, FastAPI, A2A, AG-UI and MCP
Ensure platform observability and alerting via Azure Monitor and Azure Log Analytics




Implement evaluation pipelines for LLM outputs using Azure ML
Apply guardrails and output validation using Azure OpenAI and Azure Machine Learning
Manage secrets and configuration securely via Azure Key Vault
Node.js or.NET 8 (ASP.NET Core, Entity Framework Core)
Azure Data Factory — ingestion, chunking, cleaning, DQ checks
Azure Document Intelligence — document parsing and understanding
Azure Cognitive Search — vector indexing and semantic search
Azure OpenAI — LLM access, embedding generation, guardrails and output validation
Azure Machine Learning — model evaluation and ML guardrails
Storage & Databases
Azure SQL ·PostgreSQL — relational data and metadata storage
Azure Cosmos DB — short-term and long-term agent memory
Azure Blob Storage — file and document storage
FastAPI — lightweight API layer for agent tooling
Platform & DevOps
~ Azure Key Vault — secrets and keys management

5+ years of backend development experience in produ

📌 Programista / Backend Developer (España)
🏢 ISG International Service Group
📍 España