Sebastian Springer is a JavaScript engineer at MaibornWolff. In addition to developing and designing both client-side and server-side JavaScript applications, he focuses on imparting knowledge. As a lecturer for JavaScript, a speaker at numerous conferences, and an author, he inspires enthusiasm for professional development with JavaScript. Sebastian was previously a team leader at Mayflower GmbH, one of the premier web development agencies in Germany. He was responsible for project and team management, architecture, and customer care for companies such as Nintendo Europe, Siemens, and others.