# 14 The Work of a CTO: Building a Great Engineering Culture with Fabiano Beselga
Fabiano Beselga co-founded Magnetis, one of the most successful fintech startups in Brazil, and served as the CTO for over 7 years. If you want to become a C-Level executive or become a better leader, check out this episode. Fabiano shared a lot of great advice on how to make sure you are giving the support your team needs and how to establish good practices, deliver better products, and how to hire well.
#12 Sharpening Your Coding Skills by Contributing to Open-source with Gui Vieira
Gui Vieira is a Senior Software Developer originally from Brazil. He moved to Vancouver, BC a few months ago. He is the maintainer of the 'shoulda-matchers' test library, a very popular library in the Ruby on Rails community. We talked about his entrepreneurship journey, his experience with open-source and how he got a job in Vancouver via VanHack.