Led critical updates for Sephora's iOS app, refining appointment and booking flows and implementing the re-schedule experience; contributed to customer-facing web features including guest booking and account management with essential analytics tracking; enhanced internal in-store web apps by migrating APIs from REST to GraphQL for field representative visit management and designing new UI features for staff notifications and calendar tools.

iOS Software Engineer at XP Inc - XP Investments

October 1, 2019 - October 1, 2024

Led development of Rico's Credit & Debit Card experience on iOS, coordinating requirements and UI/UX collaboration; built scalable iOS architecture using Swift including a real-time market data layer (GraphQL, WebSocket, TCP, protobuf); delivered fully tested code (Accessibility, Unit Tests, UI Tests) and supported high reliability; collaborated cross-functionally with PMs, managers, and multiple teams to align business and engineering goals, and contributed to CI/CD (Azure DevOps), observability (Crashlytics), code reviews, and mentoring junior engineers.

iOS Software Engineer at Nextel Brazil

October 1, 2017 - October 1, 2019

Planned, designed and implemented the full rewrite of MeuNextel app for iOS in Swift using MVVM-C; fully covered with unit and UI tests; MeuNextel grew from 1.2 to 4.8 stars on the App Store, becoming one of the world's leading telecom apps in 2018.

iOS Software Engineer at LuizaLabs - MagazineLuiza

March 1, 2016 - March 1, 2017

Designed and implemented features in the Super App Magalu for iOS (37M+ MAU, US$800M revenue in 2017); implemented Product Rating Experience in the Super App Magalu for iOS using VIPER, XCTest, XCUI Test; designed and implemented an iOS app to communicate with credit card terminals via Bluetooth using RxSwift; contributed to CI/CD with Jenkins, pull requests, code reviews, unit/integration/e2e testing.

iOS Software Engineer at Timokids

January 1, 2014 - January 1, 2016

Led the development of Timokids app for iOS, Android and backend infrastructure (200k+ downloads, 23k WAU, 190+ countries). Implemented shared iOS/Android onboarding experience in React Native using JavaScript, improving the feature's NPS from 4 to 9/10; implemented Apple Pay for in-app payments, and Swift SDKs for feature reuse; CI/CD with Git/Jenkins, observability, pull requests, code reviews, and unit/integration/e2e testing.