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Onwelo S.A. logo
Onwelo S.A.

We are one of the fastest-growing IT companies on the Polish market. In a short time, we completed over 300 projects, expanded our team to more than 400 people and opened 6 offices in Poland and branches in the United States, Germany, Switzerland.

OtherIT solutions400Warszawa (+6 locations)

tech stack
Java logo


JavaScript logo


React logo


Angular logo


Python logo


Docker logo


.Net logo


C# logo


Big Data logo

Big Data

DevOps logo


our team

Java Team Leader

„The people are most important at Onwelo. We can participate in interesting, challenging projects, proving our effectiveness, and that enables us to achieve results that we are proud of as a team.”


Intelligent Automation Senior Specialist

„In my work, I most value positive people around me and the fact that every day is different. I am happy that I have the opportunity to use my skills in end-to-end projects.”


Junior Big Data Developer

„Because Onwelo is open to suggestions and initiatives, I can have a genuine influence both on the results of our work and on my path of development.”

take a closer look

You can depend on the support of our specialists. The experienced teams – managers, seniors and mentors drive professional development, positive cooperation and team spirit. It allows for an exchange of information and for being up to date with new solutions. At Onwelo we know how to use innovative and modern technologies thanks to customers striving to invest in such tools.


At Onwelo we are open to ideas and suggestions of our specialists. As a member of our team, you will have a real impact on the choice of a technological stack. We will give you access to advanced work tools. With us, you will have an influence on the results of your daily tasks and the direction of your professional development.


We will customize the model of employment to your needs. You can choose the most convenient type of employment contract. Do you prefer remote work? We are receptive to such a solution! At Onwelo you will also have the opportunity to work in flexible hours.

Modern office

Each of our 7 offices has the same high standard. We always search for office buildings that can offer attractive and easy to reach location. We create modern space that drives the collaboration and creativity through social rooms, chill rooms, spacious kitchens, nice patios and terraces. The comfy conference rooms and soundproof phone booths are also available for those who prefer to work in more silent environments.

our offices

    Karolkowa 30


    Prądnicka 20a

    New York

    85 Broad Street


    Zagnańska 49


    Chorzowska 6


    Nałęczowska 14


    Azymutalna 9

company insight
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