Kelhini, Faraz K.: - Faraz K. Kelhini is a test automation engineer, full-stack JavaScript expert, and author with a decade of experience turning complex web problems into elegant solutions. He has written three highly regarded books: Modern Asynchronous JavaScript, Text Processing with JavaScript, and JavaScript Brain Teasers. Beyond books, Faraz creates interactive courses for Educative.io, pens in-depth tutorials for LogRocket, and polishes manuscripts as a technical editor for Pearson and Packt. Whether he's architecting enterprise-grade applications, developing essential tooling, or guiding emerging talent, Faraz's mission remains the same: empower developers to write smarter code and have fun doing it.
Mayhew, Butch: - Butch Mayhew is a Playwright Ambassador and quality consultant focused on enabling quality across organizations through modern testing practices and pragmatic automation. With 10+ years in test automation and deep exploratory testing, he helps teams build confidence in their software by improving how they test, what they test, and how quickly they can learn from results. He is the founder of Howdy QA, a consultancy that supports companies with Playwright adoption, framework design, CI/CD integration, accessibility testing, and hands-on training. His approach blends strong technical execution with a culture-first mindset: quality isn't a phase, it's a habit teams build together. He has also created LinkedIn Learning courses on Playwright, giving engineers and testers a structured, hands-on path to leveling up their automation skills.