Lucas Uyezu is a skilled and experienced backend software developer with over a decade of experience in the field. He has been involved in all stages of software development, including analysis, construction, launch, monitoring, and maintenance of software systems. He specializes in TDD and BDD and is proficient in Ruby, Java, and Android. Lucas has spoken at major conferences such as Ruby Conf Brazil 2017 about Domain Driven Design and Campus Party Brazil 2015, where he talked about Ruby, Twitter, Asynchronous Programming, and Bitcoins. He has also contributed to several open-source projects, such as Rails' jQuery driver, HTTParty, devise, and Rails core. Lucas holds a Bachelor's degree in Computer Science from Universidade Metodista de São Paulo. He currently works as a Senior Software Developer at Shopify and previously worked at Locaweb, DMC Brazil, Tomotaka, Arvato Mobile Brazil, Perform Informática, and SHX INFORMATICA LTDA.