During my time at Nuclei, I was entrusted with the responsibility of maintaining and developing the fedmobile application. I successfully completed the migration from Dagger to Hilt, leveraging the benefits of the new dependency injection framework while overcoming challenges. Additionally, I developed a robust rating management system that significantly enhanced the overall user experience by allowing users to provide feedback and rate various features. To ensure data security, I implemented sensitive data removal from the cache, taking appropriate measures to prevent unauthorized access. Furthermore, I improved the app's performance by implementing optimizations with Baseline Profiles, resulting in enhanced speed and stability. I also created launcher shortcuts for quick and convenient access to key features, and customized the UI for minor users, making it user-friendly and age-appropriate. My contributions reflect my expertise in software development, performance optimization, data security, and user-centric design, and I take pride in delivering a seamless and secure mobile app experience for our users at Nuclei.