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 production environments ~ Strong proficiency in Node.js OR .NET 8 / ASP.NET Core (or both) ~ Solid hands‑on experience with Azure cloud services: ADF, Cognitive Search, OpenAI, SQL, Cosmos DB ~ Familiarity with vector databases, embeddings and RAG‑based architectures ~ Experience with containerisation (Docker / Kubernetes / AKS) ~ Proficiency in SQL (Azure SQL, PostgreSQL) ~ Experience with CI/CD pipelines and DevOps practices on Azure ~ Fluent English — working language for all technical documentation and ceremonies ~ remote in that case.

Experience with Python / FastAPI for agent tooling layers Founding engineer role — shape the architecture and culture of a brand‑new GenAI hub from day one Backed by the organisation's integral engineering community, tooling and career development programmes Valencia-based hub with a collaborative, senior‑weighted team Direct exposure to the company's transformation agenda and senior stakeholders #

📌 Programista Back-End - Backend Developer .NET (Valencia)
🏢 ISG International Service Group
📍 Valencia