Jimmy

Software Tester

Tester Work • Freiberufler

Nov 2024 - Present • 1 yr 10 mos

Throughout my freelance work, I have developed and maintained real-world mobile and web applications, including service-booking platforms, marketplaces, visa-management systems, and business applications. My work has involved designing user interfaces, integrating REST APIs and Supabase backends, implementing authentication and payments, debugging complex application issues, and preparing applications for Google Play and Apple App Store distribution. I have hands-on experience testing applications across different environments, including Android devices/emulators, iOS simulators, tablets, and different screen sizes. I regularly investigate crashes, API failures, UI/UX issues, performance problems, database errors, and integration failures using application logs and debugging tools. Key achievements include: - Developed and published production mobile applications for Android and iOS. - Worked through App Store review and submission requirements, including privacy, account deletion, metadata, screenshots, and build/versioning issues. - Debugged complex Flutter, Android/Gradle, API, Supabase/PostgreSQL, and media playback issues. - Integrated and tested authentication, booking systems, payment workflows, location services, notifications, and marketplace features. - Built responsive interfaces for mobile, tablet, and web environments. - Worked with backend services using Node.js/Express, MongoDB, Supabase/PostgreSQL, and REST APIs. - Performed functional, UI, regression, integration, and exploratory testing during development and deployment. - Used debugging logs and reproducible test cases to identify the root causes of software defects. - Worked as a freelance developer, requiring clear communication