• Developed new online application systems for new critical illness insurance campaign for over 4 million potential clients worldwide using .NET Framework, C#, React, and Azure DevOps pipeline.
• Created E2E/Smoke tests with .NET & Selenium and unit tested with NUnit & Moq, reducing up to 90% of QA effort.
• Maintained 20+ .NET microservices that support a central COBOL Mainframe system to perform tasks like DB2 data purging/extractions to SQL Server, generating SSRS reports and statement email, and etc.
• Proposed and lead various .NET application upgrades to 4.8 to prevent security vulnerabilities, investigated and debugged .NET applications to generate testing plan for QA.

• Implemented over 50 automated regression test cases, leading to the discovery and resolution of 8 regressions.
• Created internal tool using Bash scripting for macOS and various Linux distributions to automate configurations of daily newest software builds, reducing regression testing setup time by 30%.
• Performed daily test failure triage and regular sanity/performance/user acceptance testing on macOS/Linux builds.
• Collaborated closely with dev/QA members and other teams following strict Agile process to assist with development.

• Tech stack - React, Spring Boot, Hibernate, Spring Security, MySQL, Selenium, Chart.js
• Engineered a website that monitors Instagram users’ daily updates of their follow lists utilizing Instagram Graph API.
• Constructed a robust Spring Boot server that automates Instagram login and executes in-browser JavaScript code via Selenium web browser to periodically access user’s follow lists from Instagram Graph API with EnableScheduling.
• Implemented Spring Security and JWT to enable user authentication, enhancing security and user management efficiency.
• Optimized website performance by utilizing WebClient library for internal HTTP requests within Spring Boot server, minimizing the needs for calls made from the client-side server.

• Tech stack - React, Redux, DynamoDB, AWS Amplify, AWS Lambda, AWS Cognito, GraphQL
• Created an intuitive course planner web app to help organize future course selection at SFU with 15+ active users.
• Built a predictive model for future course availability by analyzing historical data from SFU Course Outlines API.
• Leveraged DynamoDB, AWS Amplify and Cognito fullstack server-less architecture to implement GraphQL endpoints for CRUD operations and user authentication.
• Initiated post user sign-up Lambda trigger in Node.js environment to auto-generate course boards upon user creation.
• Employed React and MaterialUI to build UI interfaces and Redux to update global states across all planning boards.
• Unit tested front-end with Jest by mocking API requests and automated testings by deploying Continuous Integration (CI) workflow on GitHub Actions.

• Tech stack - MERN (MongoDB, Express.js, React.js, Node.js)
• Co-developed a blog-style website to facilitate medical services between doctors and patients through blog posts.
• Wrote blog components using Tailwind CSS and React classes & hooks and integrated Symptom Checker API for efficient symptom categorization during post creation.
• Assisted with MongoDB connection setup for blog posts storage and JWT user login authentication middleware.

• Tech stack - React, MySQL, Express.js, Node.js
• Developed a homework planner web application that allows students to keep track of university assignments.
• Deployed MySQL Database to manipulate CRUD operations in user’s assignments details with Express hosted as backend.
• Utilized React components life-cycle and used SFU Course Outline REST API to select school departments code.

• Tech stack - HTML/CSS/JS, Express.js, Node.js
• Developed a website that simulates rebirth by computing chances of birth at each country with birth rate & population.
• Built a web scraper using Axios and Cheerio and used WebSocket to transmit scraped content over to the front end.
• Integrated Mapbox API to generate an interactive world map, visually indicating user’s simulated birth country.

• Tech stack - Java, Swing
• Created a homework planner app using Java Swing designer with 10+ userbase during high school.
• Implemented Java Serialization that converts objects into byte streams to store assignments objects as local files.