Otavio Madalosso developed SEO-friendly, slug-based URL handling for the show-karma/gap-app-v2 repository, replacing project UUIDs with readable slugs to improve both user experience and search engine optimization. He leveraged Next.js and React, specifically utilizing the usePathname hook, to ensure server-side rendering compatibility and robust routing. Otavio also implemented slug redirects, allowing seamless access whether users navigated via UID or slug, which reduced broken links and improved analytics reliability. His work focused on front end development using JavaScript and TypeScript, delivering a targeted feature with clear business impact and demonstrating a solid understanding of modern web application routing patterns.