Developed and maintained internal tools, public site, and JavaScript learning platform with over 165,000 annual users

Debugged JavaScript, CSS, HTML, and npm dependency issues to improve developer experience for ~100 engineers

Wrote documentation to institutionalize trunk-based development for git to increase organizational performance

Performed comprehensive code reviews and walk-throughs in JavaScript, React, Redux, Node.js, Express, SQL, MongoDB, TDD, and DevOps (Docker, AWS, CI/CD) to promote technical development and adherence to engineering best practices

Onboarded and mentored engineering teams through complete Software Development Life Cycles (SDLC), emphasizing Agile methodology and positive team dynamics to ensure successful, on-schedule product launches

Conducted technical interviews of prospective engineers to assess JavaScript knowledge, technical communication, analytical problem solving, debugging skills, and overall cultural fit

Implemented SvelteKit to provide a high-performance framework with blazingly fast HMR using Vite for development and code splitting, prefetching, configurable rendering, and seamless serverless integration for production

Engineered Svelte to formulaically generate component code and construct a single store of reactive properties to be dynamically updated after prefetching the corresponding files but before navigating to the selected chart

Harnessed D3 for robust translation of information from the data space to the pixel space and dissected its DOM manipulation methods to render chart elements conditionally in Svelte components with logic blocks

Dramatically improved accessibility of charts with ARIA labels and hidden tables in accordance with A11y principles

Incorporated TypeScript to enforce static typing to facilitate debugging and reduce runtime errors, improving extensibility

Used Tailwind CSS to facilitate a custom UI with inline styling, employing utility classes to achieve a unique design and guarantee cross-browser compatibility while abstracting away unnecessary complexity, making styles easier to maintain

Integrated Playwright for end-to-end testing, ensuring UX quality with an automated browser and promoting UX consistency through time travel debugging, network traffic emulation, and cross-browser testing in CI/CD

Product developed and maintained under tech accelerator OS Labs

Introduced React to componentize front-end code to improve UX by reducing re-rendering time with the virtual DOM and keep search/filter/list/map displays in sync and easy to maintain by enforcing unidirectional data flow

Employed Node.js/Express server to fetch and store event data by processing multiple API requests and JWT authentication using routers and the middleware design pattern to promote extensibility in future development

Configured Webpack to transpile ES6/JSX and optimize code by reducing build time and implementing HMR for development and also by reducing load time through caching, minification, and uglification for production

Containerized application with Docker to improve collaboration by unifying development and production ecosystems

Deployed Redux to provide dynamic portfolio data to multiple components, efficiently managing state across the application to minimize re-rendering and improve organization by separating state management logic from UI logic

Designed a PostgreSQL database to store authentication and portfolio data and enable real-time calculations based on multiple inner joins and composite constraints while ensuring data validity in case of concurrent entries across users

Utilized React Hook Form to handle user authentication and data submission with comprehensive and efficient validation