【Responsible & Contribution】played a key role in the development and maintenance of the Urbanfit24 app, with my responsibilities including:- Interfacing closely with key stakeholders and gathering the requirements from different stakeholders.- Code review and feedback, took initiative to improve development efficiency in process and streamlined workflows by use of advanced dev-tools and techniques.- Designed and implemented an outstanding medal solution for hot deployment. It coupled with efficient algorithms, minimizes code volume while maximizing functionality, striking a balance between simplicity and capability.- Data deduplication: Identified and implemented a novel algorithm to deduplicate motion data from multiple devices, significantly improving the efficiency and accuracy of data analysis.- Reviewing the work of other developers and providing feedback, giving guidance, and making suggestions for improvement.【Key Achievements】- Tackled the most significant and difficult technical challenge using innovative solutions and advanced techniques,- Improved the performance by at least 3x at critical scenarios, such as counting step data and deduping against multiple devices,- Improved data accuracy: The data deduplication solution and algorithm reduced the data size by 50% at least, while maintaining the accuracy and integrity of the sports data.- Leading and mentored an agile team of 8 members throughout the SDLC (software development life cycle).

【Responsibilities】 - Technical Support: responsible for resolving technical issues such as database problems, data inconsistencies, and performance issues or turning.- Tool Development: developed new tools to improve migration efficiency.- Testing Support: assisted testers to ensure a smooth system migration.- Key Module Coding: participated in solving technical problems in key module coding.- Code Review【Contribution】- The system's infrastructure was successfully upgraded, improving its security, performance, and scalability.- Leading and mentoring the agile team of members across the SDLC process.- New tools were developed to improve migration efficiency and shorten the project cycle.

【Responsible】- Requirement definition, Detailed design- Implementing core modules and features- Tackling significant technical challenges and troubleshooting- Refactoring smoothly for the digital key platform from monolithic (v1.0) to microservices-based architecture (v2.0).- Mentor and Code review.【Contribution】- Solved major technical failures and challenges. - The microservice-based transformation greatly improved the system's throughput, stability, responsiveness, and concurrency. - Code Review, leading and mentoring an agile team of 6 members throughout the SDLC, providing guidance and support to facilitate their integration and development within the team. Reviewing the work of other developers and providing feedback.

Responsible for leading a development team and managing code deployment to one of the most popular mobile e-commerce mall sites in Pingan Group(>20 million user visit). Interfaced with key stakeholders and apply my technical proficiency across different stages of the Software Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design and . Deliver high quality code deliverable for a module, lead validation for all types of testing and support activities related to implementation, transition and warranty.

- Responsible for code review and mentoring of agile team members throughout the SDLC process- Close liaison with key stakeholders, and implemented critical features and core mudule according to the requirements from clients including Societe Generale Bank, Deutsche Bank and Nomura Securities, etc.- Resolved critical architecture issues: Identified and corrected a major design flaw that had doubled the workload for developers. This intervention resulted in significant time and cost savings for the project.

【Responsible & Contribution】- Critical functionality development: Designed and implemented the core functionalities of the system, including the tracing algorithm, and data storage.- Algorithm design and implementation: Developed a novel algorithm for tracing the production process based on a directed graph data structure. This algorithm allows for efficient and accurate tracing of complex production processes. It leverages the power of graph theory to efficiently trace complex production processes, significantly reducing the costs required for traceability.- Responsible for the implementation of a feature that, with the help of D3.js, provided a very intuitive and beautiful animation for the traceability system, allowing the user to trace the entire product history view at a glance.- Implemented a scalable and flexible system: The system architecture is designed to be scalable and flexible, allowing for easy adaptation to different industries and business requirements.

【Responsible】 - Analyze and review application requirements- Participated in the development of critical features and themaintenance of existing application; - Conduct partial framework development, function expansion and performance improvement;- Integrated the legacy modules and conduct authority control;- Performed project deployment and relevant subsequent maintenance;- Technical supporting and client guiding;

Responsible for the new case development, troubleshooting and wrote test case scripts for completed application.