Oleksandr Sushko is a Principal Engineer at OKeep. Colleagues describe them as "I had the pleasure of working with Alex for three years and during that time, I was often impressed by his approach to problem-solving. He is a systematic thinker with a rational and pragmatic mindset. Alex designed numerous complex software systems with keen attention to detail and efficiency in mind. He has a talent for identifying the root cause of problems and finding innovative solutions to arising technical issues. Overall, I can confidently say that Alex is a valuable asset to any organization. His systematical thinking, rationality, and pragmatic approach to problem-solving make him an excellent software engineer, and I would highly recommend him to any company in need of a skilled and innovative professional."