• Led full stack projects for system migration, improved processing efficiency, data accuracy and user accessibility, empowered system scalability, reduced maintenance engineering effort by 70%

• Designed and implemented microservices and APIs in C++/Python with internal frameworks, built front-end with TypeScript and React, enhanced application modularity and performance

• Participated in designing and developing scalable distributed systems, enabling users to manage securities with higher efficiency by automating manual data inputs

• Collaborated with stakeholders to gather requirements, implemented features that meet business needs and improve user experience

• Tested, deployed and maintained applications and services, provided tech support to solve real-time client issues and ensure better user experience

• Conducted design reviews and code reviews, mentored junior developers

• Developed service with Node.js and Typescript to support investment website

• Implemented Web front-end with Typescript and Angular

• Developed trading support applications in Python, automated ETL process, improved analysis efficiency

• Built internal service and provided APIs for trading analysis, created rule-based system to parse unstructured data, stored data in object-oriented database, implemented web UI with TypeScript and React

• Migrated desktop trading monitor to web application, built interactive data visualization front-end for large real-time dataset with Perspective, set up service for real-time data feeding and portfolio hedging

• Contributed to platform Python 3 migration, upgraded third-party libraries in platform, optimized upgrade procedure and enhanced documentation, fostered a culture of best practices and continuous improvement

• Created and performed tests for applications, participated in software development life cycle control with Agile development pattern, provided tech support to stakeholders