Alten

Built a RAG-powered support assistant for NAVANTIA (SAP ARIBA) using Python/FastAPI, Mistral AI, ChromaDB and React — with real-time streaming chat, an intelligent email agent with auto-response, and an interactive semantic knowledge map built with UMAP + DBSCAN.

Developed a contract management platform for Airbus Defence and Space using Vue 3, GraphQL (Mercurius/Apollo), Node.js/Fastify and PostgreSQL — covering Liquidated Damages calculations, price escalation formulas indexed to economic indicators, and automated document generation (Word/Excel/PDF).

Built a project planning SPA for a German engineering client with an interactive Gantt chart, milestone tracking, KPI dashboards with Excel exports, and a granular 4-role permission system.