Technical Director & Systems Architect• Responsible for leading a 30-member development team using agile methodologies to successfully build and maintain "Campus Anxin Pay" and "E-Payment" online payment systems for universities, serving over 200 schools and millions of students, with annual payment transactions exceeding 20 billion Yuan.• Responsible for continuous improvement of workflows and infrastructure to enhance team productivity and quality.• Responsible for analyzing typical issues during system operation, setting technical standards, conducting optimizations, and organizing business and skill training.• Responsible for in-depth system functionality analysis, optimizing company system architecture, and establishing foundational services including monitoring and automated continuous integration systems.Project manager & Developer• Responsible for leading the "E-Payment" system team to guarantee uninterrupted payment services.• Responsible for developing backend services for "Campus Anxin Pay" payment system, and the Android client application.• Responsible for analyzing business requirements, extracting user demands, modeling for business scenarios, and steering technical design.• Responsible for establishing development plans, allocating tasks, and ensuring project progression aligns with plans and expectations.• Responsible for the development of foundational architecture and key modules, and for validating team members' contributions.Information Security Administrator• Responsible for ensuring the company's information security, preventing any form of active or passive information breach.• Develops and regularly maintains information security process standards.• Conducts regular security checks to ensure system and data security.• Organizes and conducts security incident response drills to improve the team's emergency response capabilities.• Responsible for promptly addressing security incidents and restoring normal system operations.

• Responsible for the development and maintenance of the Tibet Voice Network's Android client.• Responsible for addressing Chinese/Tibetan text support issues in the Android client and establishing a standardized solution for Chinese-Tibetan compatibility.• Responsible for custom development and maintenance of more than ten government and corporate information platform app clients, delivering products on time, with assured quality and in the required quantities.

• Responsible for developing the Android and J2ME clients for the Mobao Mobile Payment APP.• Utilized XHTML + Lua for the business layer, enabling hot deployment on the client-side and solving distribution challenges.• Integrated the UnionPay secure payment chip to implement mobile online payment via bank cards through the UnionPay channel.• Responsible for integrating mobile sound wave communication to realize near-field payment functions on mobile phones

• Responsible for the development of a Symbian-based vehicular violation evidence collection system client, operational on Nokia N95. Leveraging 2.5G communication technology, the system was capable of real-time video capture and upload as early as 2007.• Tasked with optimizing the FFMpeg library, enhancing the x.264 video compression performance by over 50% through instruction set optimization, CPU pipeline optimization, algorithm enhancement, and compiler improvements.• Conducted research on video encoding parameters, successfully enabling real-time transmission of 720P 15fps video over a 2.5G mobile network on the Nokia N95, providing clear identification of traffic violations.