Wojciech Pietrzak has acquired the certification "Certified Docker Instructor" in September 2015 at Docker in San Francisco. From the beginning, he committed himself to open-source technology. He co-founded and co-organized the Docker Meetups in Hamburg, sharing his experiences there. Wojciech is a passionate Ruby developer and Golang fan with years of experience in Debian-based Linux distributions; he likes to automate the components from the command line.
Stefan Dang received his certification “Certified Docker Instructor” directly from Docker after supporting and conducting several Docker trainings. His role as a DevOps Engineer with a strong focus on Ruby on Rails enables him to embrace both Development’s and Operations’ mindsets when using Docker. With a degree in Bioinformatics, Stefan still has a knack for string-related algorithms and low-level programming languages.
Michał Szymański has achieved the certification "Certified Docker Instructor" in London. He uses Docker technology as Ruby developer every day in his job. Michał has experience as developer in Ruby on Rails and Sinatra frameworks.