Since you may not have seen it in your previous career: be aware of politics in companies (that size). Especially when you are interacting with other departments, PMs and positions generally above yours. I'm not saying its the most important thing or specific to the first days. But getting the dynamics early on will benefit you, your project and the people involved. Also more specific to day one: have fun and be exci…
Good advice. First step is to identify your enemies. I also would call it “understand dynamics”. Because somebody wanted promotion into your senior position. Somebody just does not like you or someone wants to do things differently. It’s fine. Just know the obstacles before planing the journey.
I suggest the opposite: assume good intent from everyone, listen a lot, don’t be afraid to ask dumb questions, identify people who can help your team and identify people who need your help. In leadership, the job is not about you, it’s about setting up your team for success.