Project: Video streaming module (VSM)- Being part of the Backend team to restructure old source code with micro-service architecture. Besides that, writing more test code for previous functions.- Developing new functions, such as: bookmark, snapshot, backup video... Optimizing live stream performance by tuning connection between Backend system and WebRTC gateway server.Technology: Spring boot, Janus WebRTC server, DockerProject: Count & Detect (Face-mask Detection & People Counting)- Building backend services for communicating between mobile application and Firebase system, receiving face-mask detection data from the Count & Detect App, then sending notification to Control Hub app via Firebase Message.- Providing services for analyzing report and real-time tracking on Web UI or Control Hub ApplicationProject: AlertFlow (Cloud service)- Developing Backend system for receiving and monitoring push notifications from Dallmeier systems with end-to-end encryption.- Integrating CI/CD via GitlabTechnology: Spring boot, Firebase, Docker, Google Cloud

- Developed SmoothBooking project for managing facilities and resources of hotel, beauty salon, restaurant... and providing booking features for end-user base on Seasar2 framework.- Built BiND Notification Management for managing notification message file of all Bind project versions using NodeJS and ReactJS.- Created the BiNDBox application (server-side), which managed and synchronized files data from client and cloud server.

- Developed web service for main features: online payments, in-app KYC via Smartlink’s SmartID module, card-to-card transfers, top up calling card... with some technologies: Spring MVC, Spring JPA, Spring Integration...- Maintained, improved and refactored core service system, applied unit testing.- Build, managed and released new features of product by each sprint, applied CI and CD to the process of developing and releasing product.

- Developed a website using Liferay Web Content Management to manage content of website.- Customized core Liferay Portal framework for other features: login system, workplace for user, workflow for content of the website.

- Studied and worked with Liferay Portal.- Managed, built and deployed project with Maven.