The key function automation QA Engineers perform is writing scripts and creating automation environments for repeated tests. Using different tools, they design, test, and deploy effective test automation solutions. Their goal is to automate as much of the testing effort as possible with a minimum set of code. This way they optimize the testing that otherwise would consume a large percentage of test resources.Test Automation Engineers use testing frameworks – sets of practices and tools – to create and design test cases more efficiently. An organized framework reduces maintenance costs and testing efforts while making test automation code reusable, maintainable, and stable.