Reduced annual costs by over $6,000 by replacing a paid PDF processing service with a custom-built TypeScript library extending PDF.js, eliminating dependency on commercial plugins.
Enabled secure user access and compliant data export by designing a Spring Boot REST API with token-based authentication and role-based authorization, including audit logging.
Delivered a secure backend system for TradeFlat's Supply Chain Finance app using Keycloak-integrated flows with Jmix and React.
