John Kavanagh

About

John Kavanagh is a highly experienced and award-winning freelance front-end web developer and tech lead based in Brighton, UK. With over twenty-two years of hands-on experience, he specializes in creating bespoke websites and user experiences using JavaScript (or TypeScript), React, HTML, and CSS. His client portfolio spans global brands such as Virgin Atlantic, LEGO, Polestar, Microsoft, Apple, and The World Economic Forum. John has led major projects including replatforming multiple applications for Virgin Atlantic using React and Next.js, developing LEGO’s international e-commerce platform, and building highly interactive automotive configurators for Polestar. He is adept at delivering high-traffic, multi-language, and multi-currency websites and is recognized for his problem-solving skills, attention to detail, and ability to manage complex stakeholder requirements. Currently, John is engaged on a long-term project but is available for small tasks or future work. He regularly writes technical articles on subjects including React optimization, JavaScript performance, and ethical AI in web development.