Agreed. I will add that juniors must be taught to test. In my experience they always think that they need to ship, especially when the manager is pushing and s

Agreed. I will add that juniors must be taught to test. In my experience they always think that they need to ship, especially when the manager is pushing and setting deadline. The job of the developers is to deliver working software (this involves testing), not to ship code ASAP. You test before shipping. Do not deliver something that's not been tested, if you don't have time to test you don't ship, shipping can always wait. Makes me wonder if there is a deeper issue with the environment (testing tools? business complexity?). Complexity should be reasonable, we're talking startup from scratch, not 10 years old legacy code? Can they run locally? Do they have test data and a test environment?