Shengfeng L.

• Developed a microservice application for time management, enabling industries to analyze timesheets, man- age time allocation, equipment, purchasing, and generate reports. • Created a microservice application for human resource management, simplifying employee status manage- ment for industries. • Built a microservice application for corporate staff in industries to manage projects and contracts.

• Developed a web server from scratch using Java, JS, and JSP to help over 10 high schools manage assignments, collect homework, grade submissions, and provide feedback to students. The system is currently used by more than 500 students. Implemented a professional build environment using Docker and Git, along with a PostgreSQL database. • Assisted in data gathering, organization, and presentation to teachers. • Designed an intuitive content editing process for teachers.

Led a team of five software engineers in developing the vending machine control system. Designed the software build process architecture and utilized Gradle to automate user interface adaptation for different devices and protocols. Implemented features for vending machines embedded in Android systems, resulting in over $300k in revenue. Implemented a remote control and maintenance system for vending machines, enabling remote administration and reducing maintenance and travel costs by 90%.