- Manage developer teams including Server Team and Mobile Team.- Meeting and discussing with the Korea team about the business, new requirements, and making the plans for the team for each quarter.- Advise and give the solutions for the Korea team to handle their businesses or requirements and implement them for the developer team. Design the features and current system for Korean businesses.- Build workflow for the team, review the codes in Git before deploying. Integrate the server to Platform.sh.- Improve the performance of the site: fix the existing issues, remove unused modules, clean the system and refactor the features.- Interview and train the new developers to join the company

- Maintenance and fixing all the problems on the Websites. Refactor the existing modules, improve the performance of the sites.- Manage Git Graph of source code and presentation about Database Index, Git Flow, Autoloading in Magento 2.

- Build the main website on the Magento platform, customize and fix the problems during the customer's use.- Research the documentation and build new features on the site via APIs from third parties such as SMS Message, Gmail API, InfusionSoft, Premium Gift Cards, eGift Card, Express Notes, Priceline, MultiSoft, Tickets, and so on. Almost all the sites are using REST APIs.- Analytics the requirements, give the solutions and integrate them into the site.

- Build the workflow and make the plan for the teams includingMarketing Team, Developer Team, Support Team.- Communicate with the customers about their requirements and thenanalytics, find the solutions, and estimate the time and cost to finish.- Consult and customize any the customer's requirements, not onlyMagento's site.- Training the new members and helping them to can join and workwith the team quickly.

- Build the main website on the Magento platform, customize and integrate the website with the systems of sales administration, email marketing, knowledge base, FAQ …- Participate in the construction and development of the automatic system of creating the app, allowing users to be able to create the app for mobile with full features of a Magento website.- Successfully build an Email Automation system that is integrated with the app creation process to send proper email flow at each step automatically. 2 weeks after launch, the system collected 2 orders with a total value of $850 and I myself gained the prize Technician Of Month in July 2015.- Join the Growth Hacking team: research and develop ideas to increase the number of users and boost sales. The most outstanding ideas applied and already got results: Egg Game for Easter, Mother's Day, and Father's day; optimizing js and images on the whole site; rebuilding the structure of the website according to the bootstrap.

- Develop the websites based on the Yii Framework platform whichsells a hundred kinds of items for children.- Build successfully the function of charge transport from the point ofdelivery to the provinces and cities.