What does a QA engineer & Software tester actually do?

Let's dive head first into figuring out what QA Engineer vs software tester actually do! I am going through what are their job responsibilities, what is a software development lifecycle and what real-life job offers actually expect from us. Obviously guys this is an overview of all of that and I try to make it as digestible as possible, so SDLC may be interpreted differently as well - I saw other definitions telling different things. I heard 1 like equals 5 karma points - your choice! Keypoints: 00:40 - Intro in today's discussions 00:41 - What is SDLC? 02:00 - What is a QA Engineer by definition 02:41 - What is a Software tester by definition 03:01 - What does a QA Engineer do? 03:45 - What does a Software tester do? 04:10 - QA Engineer vs Software tester comparison 05:16 - Checking actual job market descriptions of positions 08:49 - My summary & thots Cheers guys! :)