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Mariusz has been working with me on a variety of projects. His contribution has been consistently remarked for its high quality and reliability. He has been able to work self-reliantly and to supply the final quality of work at the expected level and above taking independent decisions based on his wide and varied experience. He has been noted for his remarkable ability to quickly and efficiently learn new skills and use a variety of tools. He has always been ready to go an extra mile to satisfy and exceed the client’s expectations, often on his own initiative.