- Data visualization with React, Chart.js, D3.js, Highchart, Lodash, immutable.js

- AWS Serverless architecture to manage real-time process

- Meeting platform api development with AWS Lambda + API Gateway + Congito + Amplify + DynamoDB + Chime SDK
- Front-end development with Angular9/10

- GraphQL API development in node.js, nest.js, typeorm, apollo server

- Front-end development in Vue

- Deployment to AWS S3, Elastic Beanstalk, CDN management with CloudFront, DNS with Route53

- Front-end development with React, Redux, Styled-component

- Back-end development with Node.js, Express.js, SequelizeORM, MySQL, AWS RDS, Docker, Jenkins, Stripe integration

- Built the website, where user able to post, update, delete the articles, manage its account, added pagination

-Web app has user authentication, user able to reset password and email, custom error pages