Test automation can contain as much code as the product itself, and many times is as complicated or even more. Think about distributed testing of multi user ap

Test automation can contain as much code as the product itself, and many times is as complicated or even more. Think about distributed testing of multi user applications, ML analysis of test results, producing the big data for big data systems etc. Test automation also interfaces with many related fields like DevOps and security. The bonus in being a test automator is that usually you get complete freedom to implement things the way you want and usually your budget and resources are huge.