The QA engineer will consider issues such as: the time delay to refresh the selection after typing a single letter how to test the event that triggers a REST call to the backend service how the UI layer behaves if the backend service is broken etc. Consider, for example, auto-complete on a selection list. This will help them determine how best to test the feature. The full-stack QA engineer will work with the developers to understand a feature’s architecture, how it’s implemented, and the technologies used. Similarly, the full-stack engineer will be a competent performance tester, since many of today’s applications are high-end web apps that are accessed concurrently by potentially millions of users who expect a flawless user experience. The application’s services must be ready for us and available to authorized users as and when they need it, which requires the QA engineer to examine the software from a security perspective. Security testing is important too – it’s not only relevant for applications that maintain sensitive or private data, it is also concerned with the availability of the application. The full-stack QA engineer needs to understand how users use the product, and is concerned with its usability. After the user stories and features are complete, the full-stack QA engineer will test them, and ensure the flow is correct. At the beginning of the feature, QA should be involved in feature elaboration to understand and influence the end-to-end flow, and come up with the usage scenarios that will be supported by the feature. Fewer defects are introduced by developers if the QA engineer is involved from the start, which includes defining the feature’s requirements.Ī feature-level perspective is critical – just because none of the user stories have defects, it doesn’t mean that the feature as a whole works well. They should be involved in the early stages of the feature’s development, so that they can share their advice and experience from a testing and user-perspective. What full-stack QA engineers doĪ full-stack QA engineer needs to know the product well and understand how to test it from the user’s point of view. A respected QA engineer with a range of skills can command a higher salary, enjoy job satisfaction and a successful career. The QA engineer must grow their skills to match the new technologies, testing techniques and methodologies currently in vogue. The QA engineer needs to think up-front about all aspects of quality and how to test, from the start of the sprint’s planning phase. In other words, testing is not something we do once before release it’s done during every sprint. So to achieve the goal of fast delivery, testing activities must be integrated with the agile process and tasks for the sprint. There's not much time towards the end of a sprint, and it’s certainly too late to do it months after the feature’s development is ‘complete’ (can it really be complete if you’ve not finished testing?!) As software updates are delivered more frequently, QA engineers have less time to complete all the testing. The primary motivation for full-stack QA is the adoption of agile product development processes. The full-stack QA engineer has a rich mix of domain knowledge, technical skills and testing expertise, all from a user-oriented perspective. They will be familiar with test automation strategies and technologies. They will think about the many different aspects of product quality, such as functionality, usability, performance, security, globalization and so on. A full-stack QA engineer will be comfortable working across all of the application’s layers, and will be familiar with large parts of its functionality. Similarly, a QA engineer working on all aspects of quality and using different testing methods to test their application, is called a full-stack QA engineer. Let me explain.Ī developer who masters each layer of an application, and the technologies employed all the way through from the back-end to the front-end, is called a full-stack developer. In today’s organization, you’re pretty much guaranteed to work with full-stack QA engineers. There may have been some truth in this when we were doing most of our development in waterfall style, but in today’s agile and DevOps organization, this is an outdated and inaccurate view. This myth paints testers as being primarily reactive, looking for bugs in work that has been finished by the developers, rather than proactively looking for defects throughout the planning, design and development stages as well. There’s a perception that QA engineers are far less technical than developers, engaged primarily with manual testing of whatever the developer happens to hand over to them.
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