I've seen this happen with experienced developer with a CS degree. They say, it's "not my job" to test with large data. B.S., it is your job so sit down, shut

I've seen this happen with experienced developer with a CS degree. They say, it's "not my job" to test with large data. B.S., it is your job so sit down, shut up and do it. The job of QA isn't to find all your bugs, it's to ensure you don't have any.