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● VNPAY Merchant Management System, the management system of transactions, merchant, master merchant for payment services. Base on Spring Boot, Netflix Eureka components. Tech stack: Java, Spring Boot, Spring Cloud, Redis, Hazelcast, Netflix Eureka components, ElasticSearch, etc- Architectural design microservices base on Spring Boot and Eureka Netflix Component- Development of important modules (gateway, authenticate, refund, configuration, HA, fault tolerance, …)- Training, support for other members- Review code● BIDV QR-Code System(MMS) includes about 20 services to implement BIDV QRCode using Java, Spring, RabbitMQ, Redis, Oracle, PostgreSQL WebSphere, etc. I am the leader in this project- Receive requests from BA, forward to the development team- Participate in the development of important modules (payment, authenticate, accounting …)- Bridge between BIDV and VNPAY's technical team- Install on TEST, UAT, PILOT, LIVE environments- Build a problem-solving scenario- Upgrade, maintain, and troubleshoot- Review code● Risk management system, allowing the management of transfer amount by merchants and customers, prevent cheat acts in the switch MMS system- Collect information about Merchant, Terminal base on transactions- Build a module to prevent transactions from the payment switching system base on configuration● QR Code Consumer(QR Code Reverse), using Java, Spring Boot, Oracle, Redis, RabbitMQ. Responsibility for creating QR Code System follows the EMVCo document.- Build QR code library, create and read information from QR follow the EMVCo document- Building payment systems for both the switching system and the banking system- Develop a module that initiates transactions from the merchant and announces when the transaction is finished- Write Dockerfile, docker-compose, and implement● SMS service can reach high TPS at 1000++ - a microservice in VNPAY SMS Gateway system using Golang, PostgreSQL, RabbitMQ

Building a microservice system based on Eureka Netflix open source.Define API list, API document with front end teamImplement APIBack end - Technology: Spring Boot 2.0.3, JWT, Java 8, MySQL 5.7Apply docker on UAT and pilot env.