Listen first
I learn how the team actually works before deciding what the system needs.
I usually enter while the goal is still forming. I talk with the people closest to the work, trace where the friction comes from, and separate the real constraint from the loudest request. Then I bring business, engineering, and leadership into the same decision. We make the tradeoffs visible, build enough to test the idea, and keep learning from delivery. I stay close long enough for the team to understand the system and own what comes next.
I earn trust by making the work easier to understand, the decisions easier to see, and the learning easier to share.