•Led the development of a responsive online courses platform from scratch, implementing high-quality, scalable,and maintainable React components to ensure optimal performance and user experience.•Collaborated with the client and development team to translate design mock-ups into functional features,facilitating effective communication and alignment throughout the development process.•Actively participated in code reviews, providing constructive feedback to enhance overall code quality andmaintainability, fostering a culture of continuous improvement.•Proactively debugged and resolved software defects and issues, ensuring smooth functionality and usability of boththe website and mobile app.•Stayed updated with the latest industry trends and best practices in front-end development and mobile appdevelopment, integrating new knowledge and techniques to drive innovation and deliver exceptional results.