6.1The QA Engineer as Team Glue

QA is the only role that touches every other function in a product team. You work with product managers to understand requirements, with developers to verify implementation, with designers to validate the user experience, with DevOps to maintain pipelines, and with support to close the feedback loop from production. This breadth of interaction makes QA uniquely positioned to connect perspectives, identify communication gaps, and ensure that what gets built matches what was intended.

Being good at cross-functional teamwork is not a soft skill -- it is a force multiplier for every technical skill you have.