Mariusz Modrzejewski is a Senior QA Tester at President Studio S.A.. He possess expertise in testowanie, angielski, testy ręczne, microsoft word, microsoft excel and 1 more skills. He is proficient in angielski. Colleagues describe him as "Mariusz is the best QA leader one could ever dream of. He knows many techniques and approaches to testing tailored to the product. He is able to take care of several projects and manage each of them very professionally, even under time pressure. During our work together at Live Motion Games S.A. I had an opportunity to see it more than once. His sense of humor cannot be overlooked either. With a clear conscience I can recommend such a leader to every QA team." and "It was a great pleasure to work with Mariusz. His skills at managing other testers, his skills as a tester, and as a teacher are really high. Another thing was that Mariusz was not only a great leader and teacher, but also a great man with whom working was a great adventure. I can recommend Mariusz without doubt as a tester, leader, and team player."