While I have been almost always not challenged enough by the tasks that were at hand, I am seeking really complex and hard challenges, since that's what brings me the most joy, really.
Over the years I've accumulated strong knowledge in everything data, from Machine Learning, to DB Design to using tech such as Hadoop or ElasticSearch.
Additionally, I am a Certified Valuation Advisor and have created dozens of Financial Models, Reports and am an overall expert in Excel and all things Finance and Business.