DescriptionSenior QA EngineerWe build and operate the financial backbone of the hair and beauty industry across 13 European countries. This role focuses on the critical intersection between Treatwell Connect, our SaaS platform used by tens of thousands of salon owners, and our Marketplace application used by millions of final customers. We are shaping a dedicated Payments QA automation function to ensure that every transaction, from a client booking on the app to a salon manager processing a checkout, is seamless and secure. We've seen firsthand that embedded, proactive QA is what separates reliable financial systems from reactive firefighting.We're looking for a Senior QA engineer who is passionate about quality as a team discipline: someone who builds automation foundations, runs effective exploratory testing, and shifts how the people around them think about quality, not just how they personally test.You will be responsible for: Work with developers to build shared ownership of quality across engineering: encourage better unit testing,



help them understand what good coverage looks like, and shift quality from a QA concern to a team habit.Mentor QA team members into more technical and structured testing practice.Run exploratory testing to surface edge cases and failure modes that specs don't anticipateOwn feature aftercare: monitor releases in production, track stability, and drive continuous improvement from what you find.Track QA metrics that matter, bug detection rate, release confidence, post-release defect counts, and own the narrative around what they mean for the product.Our QA contextOur Payments context is uniquely complex, spanning our SaaS management tool, our consumer Marketplace and the accounting logic around every payment. In this greenfield position within our Payments domain, you are empowered to reshape our testing evolution. Your mission is to establish a pragmatic, immediate framework that enhances delivery speed without causing friction, while

📌 Senior Engineer, Software Test Engineering (Madrid)
🏢 Treatwell
📍 Madrid