Fábio Calliari

Architected and delivered a real-time voice agent using OpenAI and WebRTC for hands-free field operations. Led monorepo migration from Expo SDK 52 to 55, converted native modules to TurboModules, and ensured Android 16 KB page size compliance.

Led mobile and frontend engineering teams building high-security financial applications with strict regulatory and compliance benchmarks. Standardized architecture patterns, automated multi-environment CI/CD pipelines, and enforced code quality, unit testing, and linting policies across squads.

Maintained legacy CXH and EXH apps, then led migration into Digital Hub, a unified Expo/Expo-Web monorepo consolidating micro-services and native micro-apps around an Apollo/GraphQL & React Native core. Took ownership of core shell app maintenance and successive Expo upgrades, and led micro-services decoupling of Commerce into dedicated Product and Order services.

Developed and maintained the Camicado retail mobile application with hybrid GraphQL + REST data layers and native biometric authentication. Managed automated app store delivery, production release lifecycles, and OTA updates using Microsoft CodePush.

Engineered features for the core ERP retail management system in MagicXPA, including full ground-up architecture of the SPED Fiscal tax compliance module. Developed a vehicle and fleet management application and architected the Adderi Web BI module in .NET MVC, later migrating to .NET Core and React.

Maintained existing PHP salon management platform and engineered its next-generation web system adopting modern MVC architecture with CodeIgniter, MySQL, jQuery, and dHTMLX.

Postgraduate degree in Software Engineering.

Bachelor's degree in Computer Science / IT.