Inner Data is a collaborative area, with many people sharing their methodologies and knowledge, so you should be ready to share your ideas and solutions with your team.
Most reporting fails the same way: everything available, arranged prettily, answering nothing. We build cockpits instead, following our own Metrics Compass: four to seven metrics per view, at least one per funnel stage, each with an owner and a target, and usually two views on one model, a strategic one for the board and a tactical one for the marketing team.
The visible layer is the smaller half of the job. Underneath it sits the modelling, the joins, the definitions and the refresh logic that decide whether a number can be trusted at all. You will spend real time in BigQuery and SQL, not only in the reporting tool. A report that only describes the past is half a deliverable: we expect the insight next to the number, and, where the data supports it, the leading indicator rather than the post-mortem. Like everyone here, you will be judged on the marginal value you add to the company and to the projects you touch.