· Researched, designed, and implemented scalable Mini Programs for online dating, finding friends and sharing moments.

· Stored, retrieved and manipulated data for close analysis of system capabilities.

· Modified existing backyard system to correct errors, upgrade interfaces, and improve performance.

· Built a task system for users to get peach blossom vouchers and improved monthly active users up to 100,000.

· Created a tool for sending massive notices to users with customized message for purpose of users retention.

· Used Redis to implement distributed timing task in Multi machine environment.