Architected a robust and scalable backend using Node.js and Express.js to efficiently manage API endpoints and server-side logic for a blog post web application, ensuring high performance and reliability . Improved user interface interactivity and scalability by integrating EJS templating, optimizing client-side rendering, and boosting user retention by 30\% through enhanced user experience and faster load times. Collaborated seamlessly with cross-functional teams , to align on technical objectives, resolve complex issues, and foster a cohesive, agile development environment.