• Payment Gateway Integration: Integrated third-party payment gateways into the company's systems, reducing payment processing time by 10% and enhancing transaction security. Coordinated with external providers to ensure seamless integration and security compliance.• Website Development and Maintenance: Led the development and upkeep of internal and customer websites, promptly resolving real-time issues to ensure high availability and reliability.• Mentorship Program: Created comprehensive notes and led a mentorship program for junior developers, resulting in a 30% improvement in code quality and efficiency. Provided guidance on practices, coding standards, and problem-solving techniques.• Code Optimization: Conducted code reviews and optimizations, reducing execution time by 10%. Implemented performance tuning and refactoring strategies to enhance system performance and user experience.

• Website Development: Spearheaded the development of Cathay United Bank's official website, ensuring security measures were in place to safeguard sensitive credit status and asset information for individual and corporate clients. Complied with strict security and compliance standards to protect user data.• RESTful API Design and Implementation: Designed and implemented resilient RESTful APIs to facilitate data exchange between different modules. Emphasized high availability and reliability to enhance system interoperability and user experience.• Data Security Enhancement: Implemented advanced data security measures by integrating Spring Boot, Spring Security, and JWT frameworks. Reduced the risk of data breaches, thereby improving the overall security stance of the bank.• Website front-end creation: Utilized ReactJS and AngularJS for front-end development of the Cathay Pacific Bank website. Oversaw data processing tasks and the creation of interactive components, resulting in a dynamic and user-friendly web interface.

• System Management and Development: Managed and maintained B2B and B2C systems. Developed an automated B2B insurance policy system using Struts2, Spring, and Hibernate, which streamlined operations and improved efficiency.• User-Friendly JSP Pages Implementation: Designed and implemented user-friendly JSP pages for insurance policy services based on the Spring Web MVC framework. Enhanced the user experience by creating intuitive and responsive web interfaces.• Cross-Functional Collaboration: Worked closely with cross-functional teams, including product managers and designers, to deliver high-quality solutions that met business requirements and exceeded client expectations.