Hiring: Test Engineer Company: Haystack Location: Louisville, KY Job Posted Time: 2026-09-14 18:04:20 Target Skills & Keywords : GraphQL, Mocha, Node.js, Playwright, Pub/Sub, SSE, TestNG, TypeScript, WebSocket About the job Required Skills: •Design, test, and maintain automated tests. •Lead efforts in drafting test scenarios and writing tests to cover functional use cases for each feature. •What You'll Need •Experience testing GraphQL APIs, including writing and maintaining tests for complex queries. •Hands-on experience with UI test automation frameworks, including Playwright. •Experience testing MQTT or similar Pub/Sub interfaces (e.g., WebSockets, SSE). •Experience analyzing and correlating application and service logs across multiple services. •Solid proficiency in Node.js and TypeScript; experience with test runners such as Mocha. •Working knowledge of cloud environments and containerized deployments. •What's On Offer •Opportunity to work with cutting-edge testing technologies. •Contribute to significant projects for a premier client. •Engage in a dynamic and innovative work environment. Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!