Miguel Antenor de Oliveira

• Built scalable backend services using Go, Java, and Spring Boot to support dynamic energy pricing, user billing, and grid integration. • Created responsive and modular frontends using React.js, Flutter, and TypeScript, ensuring high usability across web and mobile platforms. • Integrated workflow automation and data pipelines using Apache Airflow to support energy data analysis and reporting.

• Optimised user experience via A/B test features. • Enhanced codebase by refactoring legacy code. • Integrated mobile apps with Golang backend. • Boosted DAUs and retention metrics effectively. • Collaborated with UX/UI and backend teams.

• Developed cross-platform Flutter apps enhancing user experience. • Integrated GraphQL APIs for seamless front-end and back-end communication. • Designed high-quality, user-centric features. • Conducted thorough testing for optimal app performance. • Optimised app performance through continuous code improvement. • Contributed innovative ideas in team meetings. • Collaborated with UX/UI designers for intuitive interfaces. • Applied agile methodologies using Jira and Git.

• Enhanced Android/iOS functionality using Flutter. • Optimised performance by refactoring native code to Flutter. • Developed Android features with Kotlin and Java. • Created iOS features using Swift for compatibility. • Deployed apps to the Play Store and App Store.

• Developed user-centric Android apps using Kotlin. • Enhanced app features for improved user experience. • Ensured app reliability via rigorous testing. • Used Mockito for application functionality testing. • Built scalable apps with Android SDK and Studio. • Stayed updated with industry trends for innovation.

• Pioneered first mobile apps with Java, Kotlin, Flutter • Launched first backend apps with Java, PHP, Python • Integrated APIs for seamless system communication • Built robust back-end for data processing • Enabled real-time data sync with Python services • Optimised MySQL, and MariaDB performance via monitoring • Maintained CentOS server stability and security • Resolved technical issues for improved system performance • Collaborated on strategies for new applications and updates

• Resolved technical issues efficiently • Ensured database integrity and performance • Migrated databases using Java and Delphi

• Mastered complex programming concepts, data structures, and algorithms. • Acquired principles of system design, software engineering, and multimedia systems. • Developed expertise in networking, database management, and web technologies. • Gained insights into digital business strategies, entrepreneurship, and innovation management. • Explored the ethical, legal, and societal impacts of technology.