At Camp Gladiator, I've made significant contributions to the development and improvement of our global fitness platform. Key achievements include:### iOS Development and Infrastructure Improvements- Revamped the iOS codebase structure, facilitating developer onboarding with a single-step setup- Implemented a monitoring layer for logging non-fatal errors, improving issue detection and resolution- Enhanced the app's network layer to handle errors and retries gracefully- Established initial infrastructure for unit and UI testing### Development Process Optimization- Automated GitHub releases for internal development use- Created an automatic system to inform QA of changes in specific test builds- Implemented Slack integration to notify Product team of App Store and Google Play build approvals### App Performance and User Satisfaction- Maintained a consistent crash-free ratio above 98%- Contributed to consistently high app store ratings (above 4.8)- Implemented monitoring systems allowing proactive issue resolution before escalation to Product or Support teams

At OPAH IT, I focused on developing retail technology solutions for one of Brazil's largest retail chains.### Android Whitelabel App Development- Engineered two identical Android whitelabel applications (with brand-specific customizations) for different brands within the retail chain- Developed functionality for managing and placing orders, stock management, and customer data management- Implemented direct control of credit and debit card machines for in-app payment processingTechnical stack: Kotlin, Java, MVVM architecture

At South System, I worked on a critical project for a major Brazilian payment company.### Digital Payment System Development- Led the initial implementation of PIX (Brazilian instant payment system) for an app focused on small business owners- Developed Android applications integrated with the company's electronic payment ecosystemTechnical stack: Kotlin, Java, payment processing APIs

At Ambush, I led significant improvements to the company's fitness application.### Mobile Application Overhaul- Maintained legacy Android and iOS codebases- Led a complete rewrite of the Android app, implementing a new design system and improving overall app health- Significantly reduced crashes, errors, and user frustration common in the old app versions### Cross-Platform Development- Worked with Javascript, Elm, Kotlin, Swift, and Objective-C across different project phases## Cross-Role AchievementsThroughout my career, I've consistently focused on:- Reducing friction between teams (Product, Marketing, Engineering, Design, and QA)- Implementing robust CI/CD practices to streamline test and production releases- Improving visibility of the development and release processes- Achieving and maintaining excellent app health and performance, particularly when interfacing with unstable or inconsistent backend systems

One of the highest-rated testers and top rated community member of uTest.Remote Crowdtesting Freelancer- Functional- Exploratory- Accessibility- Usability- Localization- Performance/Load- Worked on desktop and mobile apps for multiple clients.- I have done usability, localization, performance and functional tests- Helped coordinate a few projects and wrote test cases.Currently I'm focused on a single project, with a global client that provides global financial data in real time and stock market news 24/7I work as a tester for their desktop Terminal, iOS and Android apps. The work is coordinated with peers around the world (USA, Argentina, Brazil, Spain, China, Romania, Inglaterra, India, Philippines)The work is directly with the client and all communication is done strictly in English

📱 Internal Sales App for Android:Engineered the inaugural version of an internal sales application designed to empower sales professionals. Developed in Kotlin for Android, the app followed the MVVM architecture and implemented a unidirectional dataflow.This pioneering project aimed to provide a dedicated tool for sales teams, enhancing efficiency and delivering a seamless user experience for a renowned multinational technology company.#Android #Kotlin #MVVM

🏥 Medical Clinic Management App:Developed a comprehensive app for a medical clinic, simplifying the scheduling of doctor's appointments, appointment management, and overall clinic administration.⚙️ Technologies Used:Implemented technologies such as Coroutines, RxJava, Dagger, Firebase Cloud Firestore, and Firebase Authentication. This tech stack ensured efficient functionality, real-time data management, and secure user authentication.The application aimed to optimize the clinic's operations, providing an efficient solution for appointment scheduling and streamlined clinic management.#HealthTech #AppointmentScheduling #ClinicManagement #Coroutines #RxJava #Dagger #Firebase

🔄 Agile Collaboration and Feature Development: Contributed within an Agile team, following Kanban and Gitflow Workflow. Focused on seamless feature integration, new features, and addressing critical existing bugs.📝 Documentation and Telemetry:Created internal app and code documentation and also added telemetry data collection for crucial metrics, enhancing overall performance.📉 Optimization and Migration:Achieved a 25% reduction in app size, optimizing performance. Initiated migration from Java to Kotlin for modern practices and improved maintainability.🔄 Background Behavior Overhaul and Lite Version Redesign:Led a comprehensive overhaul of background behavior, aligning it with Android Oreo standards. Rewrote from scratch the lite version for improved performance.⚙️ Technology Stack:Utilized a robust tech stack—RxJava, EventBus, Dagger, Retrofit, WorkManager, FCM, Crashlytics, Firebase, Mockito, and JUnit—ensuring app stability and responsiveness.This experience involves active collaboration, enhancing app functionality, optimization, and alignment with industry standards.#Android #Kotlin #RxJava #Firebase