1. Developing new features and user interfaces for our eCommerce websites and internal manufacturing systems using, but not limited to, Python, MySQL, Javascript Frameworks jQuery or similar, AJAX, PHP, Magento, HTML and CSS 2. Using version management tools such as github/bitbucket for code versioning and continuous integration and development. 3. Ensuring the best performance and user experience of features built by continuously testing, integrating and refactoring the existing code. 4. Fixing bugs reported by our clients/users and resolve performance problems.

1. Built web app using MongoDB, Express, React, Node.js MERN stack. 2. Built chatbot for booking using python and wit.ai. 3. Managed the admin dashboard project and chatbot project. 4. Managed the user test and deployment.

1. Developed UI for digital signage screen by using React, Bootstrap, CSS. 2. Implemented the animation transition for the screen view.

1. Analyzed technical design by customer demands and developed programs related to order, inventory and payment system. 2. Designed and Developed GUI entries with Ruby/Qt. 3. Developed batch programs dealing with comprehensive database operations with Ruby. 4. Collaborated with colleagues in Germany and Russia to accomplish releasing test. 5. Helped code review with peers and trained new colleagues. 6. Made operation management manual for non-technical user.

1. Launched new stores two times and achieved 150% of monthly sales target several times. 2. Managed people in daily operations and trained store members. 3. Controlled ingredients and energy cost under 25% of the sales amount which is less than other stores by 2-3%.