Jim Nielsen is a design engineer, writer, and curator with 20+ years at the intersection of design and code on the web. He writes the popular Jim Nielsen's Blog covering web development philosophy, design thinking, and the craft of building for the web. He's the founding engineer at Quadratic, co-creator of The iOS App Icon Book (€136K Kickstarter), and maintains the beloved iOS/macOS/watchOS icon gallery sites. A champion of the open web, HTML-first thinking, and the emerging 'design engineer' role, Nielsen bridges the gap between visual design and front-end engineering with rare fluency.
Rauno Freiberg is an Estonian Staff Design Engineer at Vercel who blurs the line between design and engineering with surgical precision. Known for his obsession with invisible details - the micro-interactions, animations, and tactile feedback that make software feel alive - he built cmdk (downloaded millions of times weekly), wrote the seminal 'Invisible Details of Interaction Design' essay, and created Devouring Details, an interactive design education platform. He previously shaped the Arc browser at The Browser Company. His philosophy: code is the material, and mastery of HTML, CSS, and JavaScript is the only honest path to great interfaces.