David Cuartielles is a doctorate in interaction design and a postgraduate in telecommunications. He has a strong interest in building technology for humans, and that implies creating platforms and tools that help people to easily perform complex tasks. He is a co-founder of the Arduino platform and also lectures at the Malmo University. He teaches at different universities all over the world, and has spoken in the fields of technology, education, and free/open licensing models. As the CTO in education for Arduino, he advises governments about possible ways of creating new educational programs using state of the art technology (and not just Arduino). Contacted for JDS on Feb 22, 2019 by Sneha Shinde as TR Scott Cosentino is a software developer and teacher currently working in computer security. Scott has worked extensively with both low- and high-level languages, working on operating system- and enterprise-level applications. Scott has a passion for teaching and currently writes and creates videos on computer security and other programming topics. He has developed an extensive library of courses and has taught over 45,000 students through courses with Udemy, Packt, and CodeRed. He maintains a blog on Medium, and is active on YouTube and LinkedIn, where he enjoys creating content and interacting with students. Andreas Göransson is a software consultant focusing on Android application and platform development. He has several years of experience from teaching software development in different languages at the university in Malmö. In the past few years, he has been helping small start-ups an Eric Foster-Johnson is a veteran programmer who writes enterprise software in Java, Grails, and other JVM technologies. He is a consultant for ObjectPartners. He has authored and co-authored more than 20 books, including Red Hat RPM Guide, Teach Yourself Linux, and Perl Modules.