- Refactor code and develop new features - Collaborate with front-end and PM - Monitor Rollbar to keep track of bugs - Address bugs in a timely manner - Solve customers' queries about the system

- Using Rails/PostgreSQL/Docker/AWS, we moved from manual payroll to web application integration, reducing labor costs by 40%. - Using Rails/PostgreSQL/Redis/Docker/GCP, we built a scalable database connection and designed message boards, shopping processes, notification systems, video time recording functions, etc. We Dockerized the project and used Github Action to import the CI/CD process. - Use Sinatra/MongoDB/Redis to write a crawler to update Kickstarter fundraising projects daily, and use Sidekiq with Redis to ensure that the program keeps running, reducing labor maintenance costs by 20%. - Using JavaScript(React)/Docker, rewriting the client's official website with Next.js to improve performance by 60%, and linking the website's forms with Google Sheets to collect data. - Using Rails/PostgreSQL/Heroku, we connected Google Sheet API / Google Drive API to import Excel into the website for scheduling, and used Redis for Cache to reduce database interaction and improve performance by 30%.