ABOUT ITEON
Hey, I'm Leszek Szpunar
For 17 years I've worked on projects for PKO Bank Polski, BFG, Generali and PWPW. Now I bring that experience to companies that want it on their side. If you have something to build, let's talk.
Our values
Quality over quantity
We treat every project as our own product. We focus on reliability, testability, and code that won't become technical debt.
Transparency
Open communication, regular reports, full visibility into progress. No hidden costs.
Innovation with responsibility
We implement modern technologies only when they're stable and solve an actual problem. We don't chase trends.
Partnership
We treat clients as partners. If we see a problem in a project, we say so directly. End of sprint is too late for bad news.
Our history
ITEON Founded
Websites and online shops for small businesses. First projects as a freelancer.
Billing systems for the energy sector
First .NET contract: systems for electricity, heat, and gas distributors.
PWPW S.A.
System for tracking production of banknotes and secured documents. First work on projects with the highest security requirements.
Banking Guarantee Fund
Standardizing reporting data from financial institutions in Poland and the EU. Requirements analysis, design, and implementation.
Insurance systems architecture
Projects for the insurance sector: bancassurance architectures, DMS systems with Elasticsearch, GraphQL APIs, CI/CD in GitLab.
Compensa Vienna Insurance Group
Full-stack: claims handling, accident reporting, policy management, assistance notifications. .NET Core, React, Aurelia, Docker.
PKO Bank Polski
Microservices ECM platform: Kafka, MassTransit, OpenTelemetry, Outbox Pattern, Saga. React UI for document verification.
ITEON: new chapter
Ended corporate contracting. Full focus on ITEON — same standards as PKO and BFG, for companies that need them.
Core Competencies
Leszek Szpunar
ITEON od 2009
I've worked on projects for PKO Bank Polski, BFG, Generali and PWPW. Places where an outage costs millions and there's no room for errors. I learned that what counts is the business result, not lines of code. That's what I do at ITEON. If you have something we could work on together, let's talk.
Have a problem that's holding your business back?
Let's talk specifics. No jargon, no obligations. Let's see if and how technology can help your business grow.