- Designing, coding, and reviewing source code. - Providing training to other engineers. - Research, and recommend new technologies that can help increase productivity. - Regularly attending team meetings, CxO team to discuss projects, brainstorm ideas, and propose solutions to any issues.

- Make the technical strategy/vision for the back office and make the plan to arrive. - Define, propose ideas, evaluate all ideas from all researchers to resolve issues from projects. - Guide all members including system engineers (total of more than 20 members) working together. - Set the vision, clarify people's mission and role, motivate member. - Communicate & handle complaints, resolve problems, calculate risk. - Research, design, implement the platform for scalable web application with Micro-service architecture for Finance System, Human Resource system.

- Lead a team size of 5 member. - Research, design, implement platform for the scalable web application, desktop application with Micro-service architecture for Insurance value-added services of VNPT. The largest service in the market in 2016

- Develop the company's product. - Deploy many projects.