Quality Assurance engineer is an expert from junior to lead level who carries out various types of testing, including automated testing, writes test plans, in some cases even gives recommendations on fixing bugs or fixes them on his own (in small companies) ⚒
🔎 They look for errors, make sure that the program does exactly what it is intended to do, protect the product from hackers, check the functionality of the application on different devices and in different operating systems.
QA engineers create test instructions - test cases.
📌 At an elementary level, it looks like this: analysts write requirements - what data should be in the input, how they are processed, what should be the result; QA engineers write step-by-step instructions to test a program against these requirements.
QA engineer must scrupulously check what will happen if an action is taken, and whether the result is as expected 📝
But mistakes are insidious - in laboratory conditions they may not show themselves, but the user will stumble upon them after the release. Therefore, QA engineers come up with various standard and non-standard situations to check how the program will behave. This is a creative process and it is necessary to be smart and analytical to find hidden bugs.
📖 The work of a QA engineer is an endless approach to excellence. It is impossible to test everything, so the tester must work in such a way as to perform the minimum of actions, but find the maximum of errors.
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