Who we are
A boutique software studio with over 20 years of experience delivering backend systems, integrations, and quality engineering for businesses across Europe.
jazzcat was founded in 2012 by engineers who had spent nearly a decade building systems for logistics companies, e-commerce platforms, and enterprise clients across Poland. The conviction was simple: businesses deserve a technology partner who understands the full picture - not just how to write code, but why it matters to the people using it.
Instead of chasing volume, we focused on what we could genuinely own: reliable backends, clean integrations, and software that holds up under real-world load. That focus is what keeps our clients coming back - and referring others.
Over the years we've delivered projects in logistics, fintech, insurance, pharma, and e-commerce - including work for enterprise names in automotive and retail. 70% of our clients return with their next project.
First commercial software projects - e-commerce platforms, reservation systems, and entertainment applications. The start of two decades in backend development.
Studio launched with a focus on enterprise backend development. First project: a system for a transport and logistics company.
Automated testing built into every delivery. Search and data infrastructure work begins. End-to-end e-learning platform delivered.
Deep integrations with insurance, medical, and financial data providers. Message queue architecture for high-reliability systems.
Full test automation stack for web and API layers. Projects in pharma and fintech with strict data quality and compliance requirements.
Microservices and QA automation for enterprise e-commerce and courier logistics platforms handling millions of shipments.
Shipping production software for clients in logistics, fintech, and insurance. Still writing code we'd want to own a year from now.
What sets us apart
No hidden costs, no blurred timelines, no "almost ready." Clients always know exactly where the project stands and why.
Code review, automated tests and documentation are not optional - they are the baseline. We don't ship code we wouldn't want to own a year from now.
We care about the success of the client's product, not closing a task. We actively suggest better solutions - even if that means talking them out of the original idea.
Two decades of commercial development means we've seen what breaks in production. That experience shapes every architecture decision and delivery we make.
Technology
Tell us what you need - we'll come back with a proposal and estimate within 48 hours.
Get in touch