• Expanded test coverage by writing unit tests using Jest and integration tests using React Testing Library to ensure expected user experience and proper functionality of Redux action dispatches and React components

• Implemented socket.io’s WebSocket protocol to establish a real-time, event-driven communication in an in-browser collaborative IDE

• Conducted technical interviews for prospective engineers with a focus on assessing proficiency in technical communication, empathetic engineering, and analytical problem solving using advanced JavaScript concepts, including recursion and closure

• Mentored junior developers by conducting one-on-one code review, guiding design discussions, and providing lectures on core web development concepts to reinforce best practices and promote personal development

• Employed TypeScript’s strict typing and interfaces to catch errors at compile-time for codebase maintainability and scalability

• Built React architecture to leverage dynamic component rendering and flux model to establish a consistent and readable codebase as well as minimize unnecessary rerendering, improving overall performance and UX

• Implemented Jest as the default testing framework for its lightweight parallel testing and out-of-the-box auto-mocking features and React and Recoil hooks testing library to support client-side integration of Chromogen

• Applied Recoil.js atoms, selectors, and families to observe state at every render to generate meaningful and syntactically-sound test files for developers

• Utilized D3 to create an interactive and declarative state visualization tree that tracks state changes and component relational hierarchy to improve the debugging experience for users

• Applied Chrome runtime and messaging API to render live customized test files on companion DevTool to allow for easy testing

• Employed Webhooks and automated tests of Travis CI to reduce the risk of integration errors at development and enable secure and seamless updates as the application scales

• Designed a splash page using Next.js to optimize render and load time via dynamic client-side rendering through automated code-splitting

• Product developed and maintained under tech accelerator OS Labs

• Leveraged React’s unidirectional data flow and reusable components and Redux’s flux-like architecture to improve maintainability and performance, allowing scalability and enhancing consistency

• Generated Jest unit tests to implement Test-Driven Development for optimal reliability and consistency in the codebase

• Developed static routes using React Router to reduce overall network requests and improve user experience by optimizing load time with a single page application

• Applied React Hooks to dynamically reuse stateful logic while retaining component hierarchy and a uniform codebase of functional components for enhanced readability and ease of testing

• Utilized Express.js middleware paradigm in building a RESTful server to efficiently manage HTTP/API calls with routers and controllers in organized endpoints

• Architected a PostgreSQL database to securely store relational data, leveraging its ACID compliance to allow for timely data transaction

• Incorporated third-party SMS API in building an SOS texting feature for subtle and quick alerting of emergency contacts with a single button click

• Developed static routes using React Router for frontend optimization by implementing lazy-loading in building a single page application to reduce server traffic and render time, improving UI/UX

• Utilized NoSQL database to store patient-specific medication lists in nested documents for improved speed, flexibility, and scalability