Badges
Certifications
Certificate: SQL (Basic)
Certificate: SQL (Intermediate)
Certificate: SQL (Advanced)
Certificate: Software Engineer
Certificate: Java (Basic)
Certificate: JavaScript (Intermediate)
Certificate: Python (Basic)
Certificate: Rest API (Intermediate)
Certificate: Problem Solving (Intermediate)
Work Experience
Senior Full-Stack Developer
AV Software Ltd•  July 2020 - August 2024•  Remote
Designed and developed full stack applications using React, Node.js, and MongoDB, improving application performance by 25% and reducing response times by 15%. Led the development of an e-commerce platform that handled over 1,000 transactions per day, increasing overall site revenue by 15%. Integrated third-party services and APIs, including Stripe for payment gateways and OAuth for authentication. Worked with Docker containers and implemented CI/CD pipelines using GitHub Actions.
Front-End Developer
Toronto Soft Innovations •  May 2016 - June 2020•  Remote
Implemented best practices for React.js and state management, ensuring a 100% cross-browser compatibility. Led a refactor of the codebase, reducing overall page load times by 20%, improving user retention by 15%. Collaborated with backend teams to ensure seamless API integration, contributing to a more efficient workflow and faster feature delivery.
Junior Web Developer
Tech Solutions•  January 2014 - April 2016•  China
Built and maintained responsive websites and landing pages using HTML, CSS, and JavaScript. Assisted in cross-browser testing and debugging, ensuring compatibility across major browsers. Collaborated with back-end teams to integrate APIs and improve website functionality, which led to a 15% increase in user engagement.
Education
Beijing University of Science and Technology
Computer Science, BS•  February 2010 - January 2014