About the Author
Dmitry Kozlenkov is the Chief Operating Officer of ONE PLUS and a specialist in business process management, immigration legalization in Poland, operational optimization, and the implementation of modern IT solutions for companies entering the Polish market. His professional approach combines practical experience in administrative law, international business processes, and strategic business development in Poland.
He graduated from the Faculty of International Relations at the National University “Odesa Law Academy,” where he developed a strong understanding of international legal mechanisms, cooperation with government institutions, and the operational specifics of foreign businesses in Europe.
At ONE PLUS, Dmitry Kozlenkov is responsible for operational efficiency, internal process management, and the development of new business directions. Under his leadership, the company implemented modern CRM, ERP, and AI-based solutions that significantly improved workflow automation, customer service quality, and operational stability across multiple projects.
Over the years, he has gained extensive practical experience working with foreigners in Poland. His expertise includes residence legalization, employment of foreigners, company registration, business relocation, support for transport companies, HR process optimization, and cooperation with Polish government institutions.
In his professional work, Dmitry places strong emphasis on the practical side of legal and administrative procedures. In his view, every strategy should not only comply with the law but also function effectively within the realities of the Polish administrative system. For this reason, ONE PLUS focuses not only on theoretical legal regulations but also on the actual practices used by immigration offices and state institutions in Poland.
For many years, Dmitry has been involved in projects related to international recruitment, business scaling, and the creation of operational systems for companies operating in Poland. The strategic initiatives he participated in resulted in multimillion business turnover, successful management of large teams, and employment opportunities for thousands of foreigners in Poland.
Dmytro Kozlenkov is also actively involved in consulting entrepreneurs and foreign companies regarding business operations in Poland. Many ONE PLUS clients seek not only legal assistance but also strategic support in building efficient and legally secure business processes.
As an author for the ONE PLUS blog, Dmitry specializes in topics related to immigration legalization, business registration, administrative procedures, digital government systems such as MOS 2.0 and eDoręczenia, as well as practical issues foreigners face while living and working in Poland.
His articles are based not only on legislation but primarily on years of hands-on experience with real client cases. This allows readers to better understand procedures, avoid common mistakes, and prepare more effectively for interactions with Polish authorities.
Colleagues and clients appreciate his systematic approach, attention to detail, and ability to find practical solutions even in complicated situations. Dmytro believes that quality legal support begins with a proper analysis of the client’s situation and an honest explanation of possible risks and opportunities.
Today, Dmitry Kozlenkov continues to actively contribute to the development of ONE PLUS and new projects related to immigration legalization, international business, digital solutions, and support for entrepreneurs in Poland.
He is fluent in Ukrainian, Polish, English, and Russian.



















































































