Mateusz Biliński is a Head of Mobile Security at Niebezpiecznik.pl. He possess expertise in python, linux, java, programming, c++ and 35 more skills. Colleagues describe him as "I have worked with Mateusz for almost 3 years on many projects which I have managed. Mateusz always have great motivation to work on projects despite the size, complexity or technical difficulty. He has the energy to solve problems which others ignore for many years and is keen to share solutions with the team. I recognized Mateusz as not only brilliant professional expert in the field of software architecture/design/development but also as the key member of project team. He often helps junior engineers to start work on more complex problems and does it with good bi-directional communications. I have got several positive feedbacks from young members of my team about their cooperation with Mateusz. Also, his work with more senior employees such as project/program architects or system engineers I valued very high. Mateusz is able to share his ideas which often exceed scope of project with easy. He provides solid arguments which support his ideas and is open for feedback from senior engineers. Personally, I am really proud that I had opportunity to work with Mateusz. With people like him, I can work on software for new Mars probe or something similar and I am sure we would succeed!" and "Mateusz is a great colleague with very positive and passionate attitude to his work! When solving issues, he additionally tried to find simplest solution, that would fit best in existing architecture. I highly recommend him as a developer."