Antonis Patsiouras

Configured a configurable web-based healthcare platform with a modular backend and database-backed UI views, enabling client-specific behavior within a single shared codebase. Developed mobile applications deployed by clinics for patient use, enabling real-time synchronization of appointments and interactions with the main platform. Contributed to the development of an integrated invoicing and payments system tightly coupled with the core application, providing clinics with a unified solution for billing, payments, and financial workflows. Designed REST APIs enabling clinics to programmatically access and extract their data for external systems and analytics. Implemented advanced data extraction and reporting views, supporting both highly customized queries and generalized dynamic joins using graph-based join resolution with DFS-style traversal.

Daily interaction with a high volume of retail and B2B clients, identifying needs and translating non-technical requirements into concrete technical specifications. Worked extensively with SAP ERP systems for sales processing, inventory management, and order tracking.