Catarina Serrano

- Developed and maintained features for PicPay’s award-winning iOS app (winner of iBest 2024 – Best Digital Bank), serving millions of users in Brazil’s competitive fintech market. - Partnered with designers, product managers, and engineers to deliver high-impact features, ensuring alignment with business goals and user experience excellence. - Proposed and implemented architecture improvements in a mono-repo environment, enhancing code reusability and long-term maintainability. Adhered to industry best practices (SOLID, CI/CD, Unit/UI testing) to optimize performance, stability, and scalability.

- Contributed to the development of the award-winning Moises App (iPad App of the Year), designing and implementing new features to enhance the user experience for musicians and creators. - Optimized app performance and responsiveness using RxSwift, ensuring smooth real-time audio processing and playback. - Collaborated in architectural improvements to support scalability as the app grew in global popularity. Maintained high code quality through modular design, unit testing, and CI/CD pipelines.

- Designed and led the development of new features for the FazTutudu app, which enhanced user engagement and satisfaction. - Developed a real-time chat functionality, helping users communicate seamlessly while hiring services through the app. - Spearheaded the architectural design of the app, ensuring a scalable and efficient structure that accommodates future growth and innovations.