The primary motivation for full-stack QA is the adoption of agile product development processes. As software updates are delivered more frequently, QA engineers have less time to complete all the testing. 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?!)
So to achieve the goal of fast delivery, testing activities must be integrated with the agile process and tasks for the sprint. In other words, testing is not something we do once before release; it’s done during every sprint. 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.
The QA engineer must grow their skills to match the new technologies, testing techniques and methodologies currently in vogue. A respected QA engineer with a range of skills can command a higher salary, enjoy job satisfaction and a successful career.