Senior Quality Assurance Engineer, Transaction & Customer

Summary

Join the Transaction & Customer Unit as a Senior Quality Assurance Engineer (m/w/d) onsite in Hamburg or remotely within the EU, focusing on automated end-to-end tests and product quality.

Requirements

• 4+ years of experience in QA, testing, and debugging REST backend applications, with strong knowledge of HTTP methods, status codes, headers, and error handling
• Proficient in API validation against OpenAPI/Swagger specifications
• 4+ years of experience with JavaScript/TypeScript or other OOP languages, using frameworks like Mocha/Playwright, and GitlabCI
• 2+ years of experience working with relational and NoSQL databases, focusing on integration and data flows
• Passionate about automation and building maintainable test suites that provide continuous feedback, with strong skills in both exploratory and automated testing
• Experienced with agile methodologies
• Excellent communication skills, including fluent written and spoken English for clear collaboration
• Solid understanding of transaction systems, gateways, customer data, and large-scale database structures

Responsibilities

• Focus on the design, development, and execution of automated end-to-end tests
• Manage and prioritize bug reports, keeping their business value in mind
• Lead regression testing, identify and resolve defects to ensure the stability of high-traffic customer interactions and transactions
• Analyze complex workflows, data flows, and database interactions to identify potential areas for improvement in test coverage and performance
• Report bugs and reproduce them throughout the complete bug cycle
• Coordinate testing efforts to ensure the delivery of quality features
• Advocate for product quality within cross-functional teams
• Contribute to ABOUT YOU’s long-term automation strategy in testing

Benefits

• Grow together with one of the fastest growing eCommerce companies in Europe
• Flexible working times
• 40% discount on our online shop
• Fresh fruits + drinks everywhere
• Language courses (German & English)
• Free sports courses & reduced price for gym membership
• Subsidized public transportation ticket
• Free choice of hardware and operating system (Mac, Windows, Linux) also for private usage
• State-of-the-art tech stack running on AWS
• Modern office in the city center of Hamburg
• International working environment and English as company language
• Company flats (subject to availability)
• Agile work environment ( MOVE ) and cross-functional teams
• Free access to Germany’s greatest developer conference code.talks
• Company pension scheme
• Help in relocation and VISA process