When following Behaviour Driven Development (BDD) and Test Driven Development (TDD), the onus of producing better quality software is put more squarely on the developers.
The best start that any team can make to produce error free code, is to write a Unit Test BEFORE any production code is written. This way, you are not only documenting your solution as easy-to-follow tests, but it becomes clear when you break something which you don’t expect to. This in turn helps to avoid Regression issues.
Depending on which language you develop your software in, there is a plethora of tools to help you automate your unit tests. At this stage, it’s important to work with the developers to understand which they would be most comfortable to pick up and use going forwards.