I am currently a Senior Data Scientist at Nielsen.
For data tools, I frequently use Python, SQL, and Tableau. When working on web design, I use Ruby on Rails along with a heavy dose of HTML, CSS, and JS.
Python modules I like: BS4, Selenium, Pandas, Flask I'm also able to hop on Ruby on Rails projects and code in HTML, CSS, and JS while building the backend, too. I know SQL and have worked with all sorts of databases.