Non Trivial Portfolio Project Ideas

Hi, I will appreciate the guidance of Senior Software Engineers/ Technical Hiring managers, with regards, what makes a good project, one could share with prospective employers, in seeking a Development role. I have been self learning Python programming, in conjunction with Flask the Python web framework, off and on for about 2 years and will really like to clench a development role. so I set out with the idea of building a CMS system based on Python and Flask, in order to both aggressively push my learning and programming savvy and ultimately clench that dream developer role. What are your thoughts? Too big of a project? have any other projects you might suggest? I will appreciate your feedback