Agon Selmani

Led the React.js + TypeScript web application for a B2B concrete-pump fleet platform used across Belgium, France, the Netherlands, and Germany. Built complex domain features including job scheduling, real-time reservations, vehicle and operator management, contract workflows, and multi-level invoicing using a maintainable component architecture. Managed server-state with React Query for caching, invalidation, and optimistic updates to keep operational screens fast and responsive. Delivered full i18n across English, French, Dutch, and German. Shipped a React Native mobile app for field operators (dispatch, pump status, and on-site reporting), published to Google Play and the App Store. Implemented end-to-end security including MFA, role-based access control, and comprehensive audit logging. Also built parts of the NestJS REST API on PostgreSQL + PostGIS (geospatial routing) and engineered a pricelist engine, maintenance tracking, suspension periods, and automated invoice generation.

Built analytics dashboards in React.js and TypeScript using Material UI to turn complex datasets into clear, performant visualizations. Created and maintained a reusable UI component library to keep design consistency and scalability across the product. Used React Query for cache-aware data loading and low-latency interactions. Worked closely with backend teams consuming REST APIs for analytics-related features.

Developed and maintained clinic-management web features using React.js and TypeScript. Delivered complex modules such as reporting, dynamic routing, and custom reactive forms with non-trivial validation and state. Integrated directly with REST endpoints to ensure smooth front-end and back-end collaboration.