Pioneered a game platform enabling developers and businesses to quickly establish game portals and monetize effectively. Key responsibilities and achievements include:

• Led a team of 5+ engineers to develop a robust multi-channel, multi-tenant payment platform.
• Architected and implemented a CRM system enabling businesses to seamlessly manage their player communities.
• Created a Game Framework and a Front-end Framework, significantly accelerating project initiation and development for engineering teams.
• Assembled and scaled an engineering team, successfully delivering 5 game portals, over 40 web games, and multiple back-office solutions within an 8-month.

Currently lead two dynamic engineering teams with over 40 talented members, driving significant business results:

• Oversee development of the Zalo Mini App platform now serving 1000+ businesses with seamless integration
• Direct creation of 10+ engaging multiplayer social games enjoyed by millions of users daily
• Maintain robust systems handling massive scale while ensuring security and reliability
• Improve team productivity through effective leadership and strategic resource allocation

Built and scaled the ID Gateway system that became the backbone of Zalo's ecosystem:

• Engineered authentication system handling over 20M users daily with high reliability
• Led and mentored a team of 20+ engineers maintaining critical authentication infrastructure
• Designed and implemented the Zalo Developer Platform with comprehensive OAuth integration
• Created detailed documentation to support developer adoption and platform growth

Took charge of the front-end development for Zalo Web/PC Chat platform:

• Developed smooth, responsive UI components and real-time features enhancing user experience
• Established solid architecture patterns and best practices adopted across development teams
• Improved application performance through strategic code optimization and efficient design
• Boosted team productivity by implementing streamlined development workflows

Built engaging multiplayer mobile games using Java technologies:

• Developed core game mechanics and networking components for smooth gameplay
• Designed scalable platform handling large numbers of concurrent players
• Optimized performance for consistent gameplay experience across devices
• Implemented real-time game features ensuring responsive user interaction

Led technical excellence in dynamic startup environment:

• Spearheaded various technical initiatives crucial for business development
• Engineered scalable web applications using cutting-edge technologies
• Mentored junior developers, improving overall team capabilities
• Established robust development practices enhancing code quality and reliability

Developed high-performance web and mobile applications:

• Utilized diverse technologies including Java, PHP, and JavaScript
• Created responsive front-end designs working seamlessly across all devices
• Maintained efficient back-end systems supporting business operations
• Collaborated across departments to deliver solutions meeting technical and business requirements

Launched professional development career while pursuing university education:

• Built functional web applications using PHP and MySQL
• Created user-friendly interfaces for various client projects
• Gained valuable hands-on experience with full-stack development
• Demonstrated strong problem-solving skills working within agile teams