A responsible, strong conceptual developer who has over 5 years of professional experience in web application development. I also have good knowledge of Database Design, Object-Oriented Analysis/Design, Functional Programming. For web development, - I used some techniques such as Ruby on Rails, Nodejs, HTML/CSS/JS and ReactJs. - I also used new techniques for realtime responding that is WebSocket that builds under Rails and React. - Redis and Sidekiq for background jobs. - I also use the swagger to describe the API endpoint for the mobile team. For the background system, I built a crawler that uses the web driver Selenium to crawl the content from a site from Germany, the site uses use Microsoft Authentication gateway to verifying. About deployment, I used some AWS such as EC2, S3, CloudFront, and S3 Glacier. - EC2 for Rails App and Postgres database. - S3 for media storing such as the image. - CloudFront for ReactJs as Front-end base. - Glacier for long term data. and about CI/CD, I know it but I am not really a master in this field. It is in front of my learning path, Docker/Jenkin specific. Currently, I doing/learning in a big company that uses NodeJS a lot (in many purposes, not just a web development) About me, I have worked for a product company and outsourcing company, I am sure I know the specialty from theses. I am always willing to establish my background in software development. One of my hobbies is exploring new technologies