Senior Quality Engineer

KAYAK, part of Booking Holdings (NASDAQ: BKNG), is a leading travel search engine. With billions of queries across our platforms, we help people find their perfect flight, stay, rental car and vacation package. We're also transforming business travel with a new corporate travel solution, KAYAK for Business. As an employee of KAYAK, you will be part of a travel company that operates a portfolio of global metasearch brands including momondo, Cheapflights and HotelsCombined, among others. From start-up to industry leader, innovation is in our DNA and every employee has an opportunity to make their mark. Our focus is on building the best travel search engine to make it easier for everyone to experience the world. KAYAK is seeking a Senior Quality Engineer to impact the quality of one of our critical business domains, KAYAK4Business (K4B)! You will ensure our products meet the highest standards for millions of travelers worldwide by developing the strategy for built-in quality across multiple areas, evaluate and influence automation coverage, and act as a key driver in specialized quality disciplines. You will partner closely with engineering, product, and design teams, and help set the standard for how quality is practiced across the organization. Note, this role will be required to work from our Concord, MA office 3 days per week. In this role, you will: Define and track quality metrics (such as defect escape rate, automated coverage, and release risk score) for critical business domains, and share progress and trends with engineering and product teams. Design and drive a built-in quality strategy for your domain — such as shift-left testing, contract testing between services, or synthetic monitoring — aligned with business goals. Own ticketing pipeline and triage newly reported customer-facing issues, identify trends, and escalate critical issues to the relevant engineering teams as needed. Evaluate, pilot, and drive adoption of AI-assisted quality tools for use cases like test case generation, defect triage, and log analysis. Audit and expand automated test coverage across unit, integration, API, and end-to-end tiers — identifying gaps and prioritizing investment s based on risk and usage data. Refine and automate production testing practices (e.g., canary releases, synthetic transactions, production error-rate dashboards) to catch escaped bugs quickly and drive fixes that prevent recurrence. Lead user acceptance and staging sign-off on major releases, coordinating directly with product and engineering teams to confirm readiness before launch. Run knowledge-sharing sessions, pairing, and test-plan reviews to raise the quality bar across engineering teams. Contribute to the team's evolving approach to asynchronous quality practices — helping move quality from a release gate to an ongoing, embedded discipline. Collaborate with external partners to represent K4B in the innovation and expansion of the application.