•Implemented React, Next.js and JavaScript with Redux as state management tool to develop front-end pages followed semantic rules with responsive design.•Decoupled UI and logic, created reusable share components. •Designed the Back-end APIs followed with RESTful API design.•Use mongoose to create connection between MongoDB and the Node.js to make CRUD to the database.•Enhanced search engine optimization(SEO) and improve server-side rendering(SSR) performance.•Worked closely with Devops team to build Jenkins files. Regularly check the health of pipelines.•Improved the authentication process through AWS SQS and Lambda.•Write unit tests in Jest and React Testing Library.•Use Git as a version control tool to manage workflow.•Participated in daily stand up meeting and kick-off meeting every week. Involving refinement meeting in the beginning of the sprint and finish it with the retrospective meeting in the end of the sprint.