Vinicius Feitosa Pacheco has been working as a software engineer since 2007. He has diverse experience with high-performance and high-availability software architectures, with an emphasis on microservices, and is passionate about teaching and talking about them.  In the last 4 years, he has worked as an instructor in the field of software engineering techniques (including design patterns) and programming languages, such as Python, Java, and Go. He has been a speaker at large conferences such as PyCon Argentina, Pycon Colombia, EuroPython, RubyConf Brazil, the MobileConf, and QConSP.

Alexander Sofras is a software architect living in picturesque Surrey, England. He has been programming for most of his life, working on independent games, academic computer vision projects, and financial analytics software. Most recently, he has helped deliver a market-leading business intelligence platform to investment banks worldwide and maintains that interest with a passionate support of blockchain technology. When not working, he enjoys catching up with old friends, going to the theater, painting, and gaming.

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