• Main contributor in a team of 12 people for financial service development on Google Cloud Platform using Java Spring Boot

• Designed and implemented PCI-Complaint payment system through Chase Merchant Service, Wells Fargo Account Validation Service and Affirm including authorization, capture, cancel and refund

• Designed and implemented seller balance flow on sales, payout, membership fee, cancel and refund

• Designed and implemented tax calculation using Vertex when refunding the customer including appeasement and partial refund

• Implemented feeding data into Oracle Staging Hub using Kafka to consume data and generate financial report for order, fulfillment, cancel and return

• Main contributor in the development team of 8 people to build the e-commerce platform

• Designed and implemented payment integration with Flutterwave using JavaScript/React on Frontend and Java on Backend

• Implemented seller’s profile page with interactive features such as real-time responsive selling item table

• Implemented wishlist where users can add or delete items with both frontend and backend.

• Work in network team for new version product launched

• Actively participated in a team of ten responsible for verification of a new generation network product

• Implemented automated testing on performance with ​Groovy​ in JMeter to control testing instruments

• Implemented new test service that caught over 10 upstream service bugs and optimized existing test service, resulting in a 24%

reduction in testing time for upstream users

• Refactored existing UI on testing service and created over 15 data analytics graph using Ali Cloud’s data visualization tool