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We are currently looking for a Senior QA Engineer (m/f/d) who is eager to join our SCAYLE’s Add-on Unit. As part of SCAYLE’s Add-on Unit, we design, build, test, fix, release, and monitor modular, plug-and-play e-commerce solutions for the SCAYLE commerce engine, solutions that enable additional capabilities for our tenants, drive conversion, enhance operational efficiency, and ensure seamless integrations across diverse customer setups. Within this context, our QA Engineer plays a key role in safeguarding the quality and stability of these add-ons throughout their entire lifecycle. As an essential member of the unit, the QA is responsible for validating complex FE/BE interactions, ensuring integration reliability, and supporting the team in delivering robust, production-ready features.
Job Responsibility:
Testing complex frontend and backend integrations between SCAYLE, Add-ons, and external systems (e.g., marketplaces, partner services, etc)
Performing comprehensive API testing (CRUD operations, error validation, contract behavior) using tools like Postman
Executing and maintaining E2E, regression, and functional tests across multiple customer scenarios and configurations
Debugging cross-system communication by analyzing logs, payloads, and service interactions to identify root causes quickly and accurately
Using monitoring tools such as Datadog to validate system performance, trace flows, and detect inconsistencies or failures after releases
Requirements:
6+ years of working experience as a QA Engineer
Strong experience testing complex FE and BE integrations (web apps, microservices, external systems)
Solid understanding and hands-on experience with RESTful APIs, CRUD operations, and tools like Postman
Basic to intermediate SQL knowledge (writing simple queries, joins, validations)
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