James Bai

Senior Software Engineer

Toptal•  May 2021 - June 2023

• Leveraged React, Node.js, TypeScript, GraphQL, and Docker to develop and maintain multiple applications from scratch with cutting-edge technologies. • Boosted web application rendering performance by 10%. • Implemented an event-driven and microservices architecture on AWS using Lambda, API Gateway, and Cognito, improving scalability, reliability, and cost-efficiency. • Utilized data visualization tools such as Three.js to improve customer understanding of complex3D design models by 20%. • Mentored and trained 3 junior developers resulting in a significant 20% improvement in both quality and productivity, contributing to the overall success of the project. • Managed a cross-functional team and coordinated with 6 business partners toward the successful launch of a project.

Software Engineer

IT-Scient•  January 2018 - May 2021

• Reduced server costs by 50% by utilizing advanced knowledge of microservices architecture on AWS and the Serverless framework to migrate a legacy monolithic server. • Optimized the performance of a large-scale web application using Angular, MongoDB, and AWS, resulting in a 25% improvement in page load times and a 20% increase in user engagement. • Wrote 100+ unit tests per week to verify functionality of user interfaces, back-end processing, connectivity, and relational database interactions. • Conducted code reviews, averaging 2000 lines of code per review, resulting in a 30% reduction in bugs and overall improvement in code quality.

Software Engineer

IT-Scient•  June 2016 - January 2018

• Converted Figma and Sketch designs into responsive and pixel-perfect web applications, using HTML5, CSS3, Material UI, and Bootstrap to create a visually appealing and seamless user experience. • Achieved reduction of the time spent on development by 73% by creating maintainable, reusable components. • Increased customer satisfaction by 100% by architecting a highly functional admin dashboard from scratch using TypeScript, React, and Redux. • Collaborated with designers, product owners, and 7+ developers to identify and implement new features and enhancements