Gunith Eranda Devasurendra is a senior software engineer with 10 years, professional development experience, specializing in Java. Born in Sri Lanka, he became interested in programming as he considers elegant programming and design to be an art form. Gunith has a master's in computer science awarded by the University of Colombo. He is a speaker and a trainer on technical topics including Spring, and Git. He is also an advocate of FOSS. Gunith also helps out in the Stack Overflow community.

Biharck Araújo has been working as a principal software architect and lead programmer for the past 15 years. He is passionate about technology and academic research. He has been working with JavaEE technology for web projects that demand high-security standards in terms of information transmission for companies across different sectors. He has extensive experience in activities regarding software architecture. He works in bioinformatics using technology in life's favor.