keyfinder.net, a bilingual real-estate marketplace, was heading to its public launch in October 2026, alongside the iOS and Android apps. It covers 14 product areas, including map search, filters, property pages, listing submission, compare and auth, in two languages, one of them right-to-left.
With that much surface area, checking everything by hand before each release wasn't realistic, and a broken search or signup on launch day would have been very visible.
So I wrote the marketplace's Playwright end-to-end test suite: tests that open the site in a real browser and go through the flows a user would.
I also added Sentry error monitoring, so errors in production get reported to us instead of going unnoticed, and set up the site's SEO basics (sitemap, robots and Open Graph tags).
The marketplace went into launch with automated checks on its main flows and visibility into errors after release.
I'm a full-stack engineer and team lead with 6+ years of experience building production web platforms in React, Next.js and TypeScript on Laravel/PHP backends.