Led Android development for SiotyxTransport (fleet management with RFID traceability): modular architecture, implementation, and deployment to production with Kotlin, Jetpack Compose, Clean Architecture, Hilt, Room, and Retrofit. Designed and implemented a self-managed OTA update system over AWS S3 with SHA-256 cryptographic validation, eliminating Google Play dependency on dedicated industrial devices. Integrated UHF RFID readers and portals (Chainway, Chafon, Urovo) via BLE and native SDKs, enabling vehicle registration and real-time traceability. Developed SiotyxApp (RFID inventories, maintenance, and dispatches) with a clean architecture to ensure project scalability. Implemented enterprise deployments in Device Owner / Kiosk mode and secure authentication with AWS Cognito on fleets of dedicated devices.

Developed RocketCavy (CAVY) and Recargate from scratch to production, fintech applications, one published on Google Play and the other built for internal employee use, all using Kotlin and Java over MVVM and Clean Architecture. Integrated Google Maps SDK and Firebase (Firestore, Realtime Database) for geolocation and real-time location tracking. Managed the complete release cycle: signing, publishing, monitoring, and continuous maintenance in the Play Store. Contributed to the company's product ecosystem: Rocket, Yo Vendo Recargas, and GiftCard.

Developed web modules for an enterprise CRM and corporate landing pages (RocketPOS, GlobalPay) with .NET, JavaScript / jQuery, and SQL Server. Designed and optimized data models and queries on relational databases.