Operation and maintenance for chatbot product Optimize chatbot product Host management (Ubuntu) Database management (PostgreSQL and MongoDB) Openvpn server management Fix weak points from source code analysis and vulnerability assessment reports Assist project manager in satisfying customer's requirement Assist project manager in solving customer's problems Support project manager in technical side Deploy new version product to test and production environment Research monitor and alert Research product CI/CD

Assist the customer in designing, creating, and setting a cloud environment for obtaining PCI DSS Certification Assist the customer in designing, creating, and setting a cloud environment for SAP B1 and HANA Database Assist the customer in designing, creating, and setting a cloud environment for SAP B1 and Microsoft SQL Server Database Assist customers in solving problems Write technical documents for customers and colleagues Be the contact person for projects Organize tables of AWS cloud environment informations for customers and colleagues Research and discuss with colleagues for cloud architecture