No, you don’t require Tableau to become a good Data Scientist, it depends upon your choice, your team, the organization you are working with. Because Tableau is an industry-leading data visualization tool which many data scientists use in their job, but again it's not required and completely depends on the organization you are working with, as some work with Tableau and some don’t yet. But at the same time learning Tableau won’t be a backstep either, it's always good to have a new skillset.
Want to learn Tableau and get certified? Then check out the Intellipaat’s Tableau course, which contains 30 hrs. of online instructor-led training and 32 hrs. of project works and exercises to help you to practice and gain proficiency and also help you in preparing for the Tableau Desktop Qualified Associate certification exam.
Do check out our YouTube video to help you get started.