William Rosenfelder

William Rosenfelder has a work experience spanning multiple roles in various companies. William is currently working as a Senior Frontend Developer at Stantt, where they are responsible for creating efficient designs and developing user interaction screens using HTML, CSS3, TypeScript, React, and Node JS. William also creates dynamic and engaging user interfaces using React and implements animations and transitions to improve the user experience. Prior to this, they worked at Diffco as a Frontend Developer and Full Stack Engineer, where they helped multiple clients finalize problematic projects by providing the necessary expertise. William also designed application forms, created dashboards, and added validations to the forms. William developed UI components using React Material, Tailwind, styled components, and CSS pre-processors. Before Diffco, they worked at Starbucks as a Full-stack Developer, where they developed asynchronous means of retrieving data from the server and database using AJAX features and Node.js applications written in JavaScript. Earlier in their career, they worked at the Chicago Trading Company as a Web Developer. There, they developed a web app showcasing two-way audio functionality using HTML, CSS, and JavaScript. William also built an API following RESTful standards and developed custom PHP applications using Laravel and CodeIgniter frameworks. Additionally, they optimized website performance and increased website traffic through caching techniques and database optimization.

William Rosenfelder earned a Bachelor's degree in Computer Science from Penn State University, completing their studies from 2009 to 2013.