• What-Supps: Food supplement comparison and coupon services platform
• Worked with UI designer and converted visual design concepts into high quality user interface, using HTML5, CSS, JavaScript, ReactJS and Redux
• Designed and built the backend using Node.js and RESTful APIs, optimized security with multi-factor authentication, authorization and protection against cyber attacks using Spring Cloud
• Integrated MySQL and MongoDB database, increased query performance by 25% with optimal index
• Improved system performance by 20% with code optimization, load balancing, and caching
• Migrated from prototype into scalable architecture with AWS (Lambda, EC2, DynamoDB, S3, etc.)