Eduard Lecha Puig

Led backend development of Robomap AI’s platform using Laravel + OAuth (Passport) on PostgreSQL to unify machine data, technical documentation, and live technician status. Designed the Angular frontend for MimAssist, delivering context-aware, mobile-friendly guided instructions to field technicians and reducing the training curve. Built a modular LoRaWAN ingestion layer feeding sensor/operational data into AI anomaly detection models for predictive maintenance across heterogeneous sites. Implemented domain-adapted retrieval-augmented AI recommendations trained on internal technical documentation. Deployed and scaled services on Azure Container Apps with clear layer separation (connectivity, data, AI, user-facing) for 24/7 control-room operations. Engineered multi-sensor fusion pipelines and low-latency control software for industrial sorting with near 99–100% accuracy at up to 20,000 items/hour, plus web-service/ASi adapters to integrate with existing WMS/ERP systems.

Owned the Config Service backend for Telefónica’s Kernel digital core using Python/Django REST Framework and PostgreSQL, including throttled parallel writes and compressed schema storage across country instances. Designed consent-aware, auditable APIs enforcing Privacy-by-Design with OAuth 2.0/OIDC security and TM Forum-influenced access patterns. Built and shipped a low-latency Diameter-protocol charging node for the Kite IoT platform integrated with mobile core systems for real-time billing and spend control. Architected Kite’s data layer with sharded MongoDB (plus Redis caching and Oracle) to support tens of millions of devices with sub-millisecond query/update latency. Developed React-based customer portals and REST APIs for device fleet visibility, SIM lifecycle management, and connectivity analytics. Containerized microservices (Docker) and deployed on AKS with Jenkins CI/CD and Istio service-mesh patterns; set up Prometheus/Grafana-style monitoring and automated regression

Built responsive React interfaces styled with Bootstrap for internal Telefónica web tools, converting design mockups into reusable, accessible components consuming REST APIs for live operational data. Developed Node.js/Express REST endpoints with authentication, input validation, and database access to support the React frontend and integrations under senior guidance. Contributed via Git pull requests, peer code reviews, and Jest unit tests within Jira-tracked agile sprints, shipping features that met team quality standards.