Software engineering · Kielce, Poland · since 2020
We design, build and run highly scalable applications in Java, Kotlin and Python — together with the cloud infrastructure they run on. Based in Poland, working with clients across Europe.
01 Services
We cover the whole lifecycle of a backend system: design, code, infrastructure, deployment and ongoing development. We can own the entire area or work as part of your team.
// backend
Services and APIs in Java, Kotlin and Python, designed for high traffic, high availability and long-term development. We choose the architecture to fit your scale and your team — not the latest trend.
// cloud
We design and build the environments these systems run on, and look after them once they are live. Infrastructure defined as code — repeatable and predictable.
// frontend
Web interfaces, admin panels and internal tools that complete the backend and make your teams’ day-to-day work faster.
// advisory
We help you make technical decisions and reduce risk: architecture and code reviews, scaling plans, and security for applications and infrastructure.
02 Technology
The core is the JVM and Python. Around it we build everything a production system needs, from APIs and infrastructure to observability.
03 How we work
Every project follows four steps. At each stage you know what is being built and why.
We learn your business goal, the current system and its constraints: traffic, budget, deadlines and security requirements.
We propose a solution and split it into stages. Technical decisions are written down so that people outside IT can follow them too.
We work in short iterations with regular demos, code review and automated tests.
We deploy automatically, monitor the system in production and hand over documentation. We are happy to stay on for further development.
04 Experience
e-commerce
We work on systems for some of Europe’s largest e-commerce platforms, as a subcontractor to the software companies that serve them. Our work is done in international, English-speaking teams, on solutions that handle very high traffic and must stay highly available.
public sector
We deliver projects for public authorities and institutions in Poland — systems that help digitise services for citizens, where reliability, security and compliance matter.
We are open to working with clients directly — including technology companies and startups that need to scale their product quickly and safely.
05 About
JustDev Artur Węgrzyn is a software company based in Kielce, Poland, operating since 2020. It is run by Artur Węgrzyn, a backend and cloud infrastructure engineer.
We work remotely with clients in Poland and abroad, in English and Polish. You talk directly to the person who designs and writes the code, which shortens the path from problem to solution.
Artur is a co-organiser of the Kielce Java User Group (KJUG), a community that helps developers in the Świętokrzyskie region grow their skills.
07 FAQ
We design, build and run highly scalable backends in Java, Kotlin and Python, together with the cloud infrastructure they run on. We also build frontends and supporting tools, and provide IT consulting and security services.
The company is based in Kielce, Poland, and has been operating since 2020. We work remotely with clients in Poland and abroad, in English and Polish. On projects for European e-commerce platforms we work in international teams.
Mainly large-scale e-commerce — as a subcontractor to software companies, we work on systems for some of Europe’s largest e-commerce platforms — and the public sector, on projects for authorities and institutions in Poland.
Our projects are covered by non-disclosure agreements. We are glad to discuss our experience in a direct conversation, as far as those agreements allow.
Yes. We can own the whole backend and infrastructure area, or join your team and work within your processes.
Email [email protected] or call +48 601 698 230. Tell us briefly about the system, the scale and the timeline, and we will get back to you to set up a call.
08 Contact
Send us a few lines about what you need — the system, the scale, the timeline. We will get back to you to set up a call.