• Designed Express middleware to implement Google’s OAuth 2.0, issued JavaScript Web Tokens to

streamline user login and signup.

• Stored and wrote user information to SQL database to enforce ACID compliance, and persist user

preferences and session storage.

• Created the backend of the app in Node.js due to uniformity with React application, speed of JIT and

quick deployment.

• Bundled React code with Webpack and babel to enable compatibility on older browsers like Internet

Explorer.

• Employed Redux to manage application’s state across separate pages, allowing for centralization of

fetched data, preventing repetition of code, as well streamlining the management of the application’s

state.

• Leveraged Puppeteer.js for its integration with the Node ecosystem and superior control over

Chromium in order to send requests to online retailers and return pricing data to the user.

• Created multiple API routes with Express.js to work in tandem with Puppeteer middleware to deliver

users data on the front-end while also appropriately handling any errors.

• Stored previous user searches in Redis cache object, increasing application scalability while reducing

load placed on the backend server.

• Created a robust Chrome extension to inform users of outside air quality.

• Utilized IQAir’s API to fetch user’s geolocation, allowing for fast and accurate data results.

• Employed CSS animations to improve and streamline user accessibility.

• Transformed styling of application based on local time for a user, offering additional UI and

accessibility improvements.