OVV – Voucher Management & Validation System

OVV (Voucher Management & Validation System) is a centralized platform designed to manage the complete lifecycle of digital vouchers, including creation, distribution, validation, and sales. I led the development and evolution of the system by introducing new microservices and expanding its capabilities into a fully integrated digital commerce ecosystem.

Highlights

• - Led the development of the OVV platform and introduced a modern microservices-based architecture
• - Designed and implemented an integrated eShop system for direct voucher sales, extending beyond the legacy SAP-based workflow
• - Built end-to-end voucher purchasing flows by orchestrating multiple services, including payment processing, user management, and product handling
• - Integrated FIP (Fiscal Invoice Printing) service for automated invoice generation and compliance
• - Developed and maintained OVVCP (customer portal) for users to access, manage, and redeem vouchers
• - Introduced centralized authentication and user management via the Persons service
• - Extended payment capabilities by enabling bank transfer checkout in the payment service

Impact

• - Enabled direct-to-customer voucher sales through a scalable eCommerce integration
• - Improved system scalability and reliability through distributed microservices architecture
• - Streamlined voucher lifecycle management across multiple platforms and services
• - Enhanced user experience by providing seamless access to vouchers via customer portal
• - Reduced operational dependency on legacy SAP workflows by modernizing the sales pipeline

Technical Overview

• - Backend built using Java and Spring Boot with a microservices architecture
• - Service-to-service communication handled via REST APIs
• - Payment workflows integrated with dedicated payment service supporting multiple methods
• - Authentication and authorization centralized through a dedicated user service
• - Designed for high scalability and fault tolerance in distributed environments

Delivery

This project was developed as part of a client engagement in a production environment. Due to NDA and business constraints, source code, architecture details, and deployment access are not publicly available.