Oleg is an outstanding Software Developer and Analyst with very solid technical background. He has an in-depth understanding of modern software technologies in two main areas: Desktop and Web application development. Oleg is an architect of three key software products that have the copyright of our Company: 3KEYWEB, 3KEYSAFE and 3KEYCATALOG. I have had the pleasure of working with Oleg for more than 10 years and he has never hesitated to provide support to our clients, colleagues and myself. I know Oleg as a hardworking, very detail-oriented person, and serious team player. I strongly recommend him as a Systems Architect and Senior Software Engineer.