ONE PLUS Sp. z o.o. uses necessary cookies to ensure the proper operation of this website. Analytics and advertising cookies are used only with your consent. You can accept all cookies, reject optional cookies, or customize your preferences. You can change your choices at any time on the Website Terms page. For more information, see our Privacy Policy.

+48 71 880 85 08
Mon–Fri - 09:00 to 17:00
Sat - by appointment
Author

Dmitry Kozlenkov

Dmitry Kozlenkov
Dmitry Kozlenkov
Operations Director
Operations Director

A certified specialist in business strategy, labor and administrative law, and IT solutions for companies entering the Polish market. Dmitry graduated from the Faculty of International Relations at the National University “Odessa Law Academy.”

Over the course of his career, he has accumulated extensive experience in HR process optimization, large-scale budget management, and the implementation of IT solutions — including CRM, ERP, and AI. He provides full support at every stage: from the initial consultation and business launch to representing clients’ interests before courts and government authorities. The strategic initiatives he has led have resulted in revenues exceeding 30 million PLN and the employment of over 8,000 foreign nationals.

His individual approach and commitment to continuous professional development allow him to offer practical recommendations tailored to the specifics of each project. Whether you are planning to establish a new company or grow an existing one, Dmitry will develop a strategy and select the right tools to make your business thrive in Poland. He is fluent in Polish, English, Ukrainian, and Russian.

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, Dmytro 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, Dmytro 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, Dmytro 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, Dmytro 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, Dmytro 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.

Latest Author Posts

EU Long-Term Resident Permit in Poland in 2026
11.08.2026
EU Long-Term Resident Permit in Poland in 2026
EU Long-Term Resident Permit in Poland in 2026 An EU long-term resident permit allows a foreign national to live and work in Poland indefinitely. In 2026, it remains one of th
Read more
Poland Changes Work Rules for Georgia, Colombia and Venezuela
10.08.2026
Poland Changes Work Rules for Georgia, Colombia and Venezuela
Poland Changes Work Rules for Georgian, Colombian and Venezuelan Citizens Poland is tightening employment rules for citizens of Georgia, Colombia and Venezuela. From 22 August
Read more
TRC Legalisation in Poland: OnlyFans, Webcam & Crypto
05.08.2026
TRC Legalisation in Poland: OnlyFans, Webcam & Crypto
Legalisation in Poland for OnlyFans, Webcam and Crypto Professionals ONE PLUS helps OnlyFans creators, webcam models, crypto professionals, media buyers and other online worke
Read more
Driving Licence Exchange in Wrocław
30.07.2026
Driving Licence Exchange in Wrocław
Driving Licence Exchange in Wrocław Driving licence exchange in Wrocław starts with a document check — translation, stay status and whether your licence can be verified — not
Read more
Power of Attorney in Poland for Use Abroad
24.07.2026
Power of Attorney in Poland for Use Abroad
How to Get a Power of Attorney in Poland ONE PLUS helps international clients prepare a power of attorney in Poland for use in the United States, Canada, the United Kingdom an
Read more
How to Check Remaining Visa-Free Days in Europe
21.07.2026
How to Check Remaining Visa-Free Days in Europe
How to Check How Many Visa-Free Days You Have Left in Europe If you travel to Poland or other Schengen countries under a visa-free regime, it is very important to keep track o
Read more
Speed Up Residence Card Decision in Wroclaw
09.07.2026
Speed Up Residence Card Decision in Wroclaw
Speeding Up a Residence Card Decision in Wroclaw Waiting for a residence card decision in Wroclaw often takes many months. For some foreigners, the case stalls right after sub
Read more
Cancellation of Deportation from Poland
18.06.2026
Cancellation of Deportation from Poland
Cancellation of Deportation from Poland and Removal of Entry Bans Receiving a deportation decision in Poland can be one of the most stressful situations for any foreigner. Man
Read more
Remove Name from SIS Database & Lift Poland Entry Ban
18.06.2026
Remove Name from SIS Database & Lift Poland Entry Ban
What the SIS Database Is and How People End Up in It SIS stands for the Schengen Information System. Every Schengen country uses it to share data about people who are consider
Read more

Popular Posts

They trust us

Our clients

We support those who choose legality, transparency and confidence in migration matters
Orlen
Pasibus
MPK
UBS
IBM
Google
Gestamp
McDonald's
Amazon
Credit Suisse
Intercars
ILS Logistics
Zabka
Autoszyby
Uber
SoftServe
Carrefour
LG
Binance
Zielone Kominkowe
Drewnex
MRC Doltech
Sii Poland
Luxoft Technology
Volvo Group
Google reviews

Client Reviews

Reviews about us on Google Video reviews on YouTube
Client trust is the highest measure of our success

Because of the delay in receiving the residence card, we didn't know what to do next. Friends advised us to contact them. They explained everything to us in plain language and suggested options for speeding up the process. Thank you for the help!

After a long wait for the residence card we started to worry, because we had to plan our next steps. We went for a consultation, where everything was explained and they suggested what to do in that situation. It's good that we managed to solve the problem.

We asked for advice about the residence card because we had questions about how long the documents take to be processed. They helped us understand the situation, explained what the options are for speeding up the process and what we can do next. I liked that they explained everything specifically and clearly, without unnecessary promises and complicated wording.

I contacted ONE PLUS about a Polish residence permit. I needed to sort out my documents and understand how to go through all the stages of the application correctly. I received legal advice, help with preparing the necessary documents and explanations about the next steps. Everything became much clearer; I didn't have to search through various sources myself. Thank you for the help and support.

This was my first application for permanent residence, so I had a lot of questions. The staff member calmly explained everything to me and helped me go through the whole process.

I moved to Poland and eventually decided to start preparing documents to obtain Polish citizenship. I contacted ONE PLUS and I was happy with the cooperation. They helped me choose the necessary documents, gave legal consultations and contacted the offices. I also received advice on legalization and help with sorting out documents in Poland. Everything went smoothly, problems were solved step by step, and I understood what to do at each stage. Thank you to the ONE PLUS team for the help and support!

If your residence permit application is stuck in limbo, I highly recommend this consultation. The session was direct, practical, and thorough. I left with a clear action plan and answers to all my questions. 10/10!

They helped me a lot with the documents. What I especially liked was that I could ask normal questions, even about small things, and get an answer.

Thank you very much for the help in obtaining a criminal record certificate with an apostille. Everything went quickly and smoothly. I submitted the application on 6 September and received it on 6 October, already in Belarus.

Good service, response on time

They helped me with a notarial power of attorney in Wroclaw. All the necessary formalities were explained to me beforehand.

Hello! I am delighted with working with you. ONEPLUS is a great organisation for ordering duplicates of civil registry documents from Ukraine. They inform you about the stages of the order and complete the order quite quickly. Best regards!

I needed help with legalization and processing documents in Poland. I liked that they not only gave me a list of documents but explained the whole process in detail. After contacting them I felt much calmer because I understood the next steps.

I needed advice specifically about legalization in Poland. I received clear answers without complicated legal terms. They analysed my situation and explained the next steps.

I asked about documents that entitle me to stay in Poland. Everything was laid out clearly and explained in accessible language. I was happy with the consultation because I finally understood how to go through the procedure correctly.

Help was needed with speeding up a case concerning a residence card. Specific information and guidance on the next steps were provided.

A well-coordinated team, professional work and normal communication. For me that is the most important thing when it comes to documents and legalization.

Thank you ONE PLUS for your help. Polish bureaucracy seems very complicated at first glance, but with good specialists everything becomes much simpler.