At Virtual Wallet System Pvt. Ltd., I architected and implemented backend infrastructure using Node.js, improving system scalability by 40% and reducing deployment time by 25%.
I added OAuth 2.0, JWT, and session authentication, and optimized database queries with Redis caching. These changes reduced database load by 70% and improved application performance by 40%.
For a freelance client’s Ed-Tech Platform, I developed and maintained more than 60 REST APIs across authentication, course management, and learning workflows. I also created a three-tier pricing structure that improved user engagement by 60%.
I’ve also developed a Secure Authentication System with registration, recovery, and protected-route workflows, and published a mobile application on the Play Store and App Store.
