Paul Dionisio

Architected and deployed serverless React/Firebase web applications and secure AWS Lambda/Node.js RESTful APIs, improving deployment reliability and data sync latency for TryCastanet.

Developed native iOS inventory app integrating Shopify and Microsoft Dynamics ERP with automated reordering, barcode scanning, and real-time analytics to streamline operations.

Built secure portfolio management and investment tracking features for Metrobank Earnest mobile apps, ensuring BSP/AML compliance and robust encryption for financial transactions.

Developed real-time multiplayer Bingo Plus supporting thousands of concurrent users, implemented secure in-app purchases and social features to boost engagement.

Built CNX for Home app with MQTT, Zigbee and BLE integrations for real-time IoT control, improving connectivity reliability and battery efficiency.

Enhanced UnionBank mobile app performance and security, improving transaction processing speed and implementing fraud-detection and encryption upgrades.

Developed enterprise iOS apps using MVVM, RxSwift and Combine, integrated Firebase databases, and implemented secure role-based access to automate business operations.

Built Mobile SalesAssist app integrating CRM platforms for real-time sales dashboards and offline sync, improving sales visibility and responsiveness.

Led end-to-end development of PSBank mobile app, implementing biometric authentication and core banking integrations to improve security and user adoption.

Developed telehealth and EHR mobile interfaces ensuring HIPAA-level data encryption and secure telehealth communications for improved patient workflows.

Completed a Bachelor of Science in Computer Science focused on software development and computing fundamentals.