About us
AraxaTech builds technologies that seamlessly connect issuers and processors. Our connector-first platform, Nautilus, lets issuers, fintechs and payment providers integrate quickly and test integration using realistic transaction scenarios. By combining migration services with connector-based integrations, Nautilus accelerates legacy modernizations and removes the need for invasive database migrations — integrations happen with minimal ledger rework.
Our Story
We built Nautilus after repeatedly seeing projects stalled by messy processor integrations, inadequate test environments, and unpredictable production data. Founded in 2021, our goal is simple: remove integration friction so teams can ship payment products faster and with more confidence.
We champion open architecture. Nautilus embodies this by abstracting integrations so teams can add, replace, or test partners without invasive engineering — reducing vendor lock-in and speeding product decisions.
Who we are
We’re an engineering team with a laser focus on card issuing. We move fast, work efficiently, and deliver with precision. It’s a startup — we all wear many hats. We develop, test, design, and prepare partner materials. Meet our team:

Ivan Radovanovic
System Architect & Founder
Over 20 years of experience designing enterprise systems, including the last 15 in card issuing. Ivan drives the architecture for AraxaTech’s products and leads the company’s technical vision.

Mahsa Jazayeri
Co-founder & Engineering Lead
MSc in Electrical Engineering, with a thesis on the application of AI in cancer treatment. For the past 7+ years, Mahsa has worked in fintech, specializing in processor integrations and leading AraxaTech’s implementation efforts.

Milan Radovanovic
Co-founder & QA and Test Lead
7+ years in fintech specializing in ledger testing, transaction simulation and the design of product test suites.

Hugo de Jong
Company Secretary
Early-stage advisor to technology companies with 15 years of experience focusing on strategic advice and accessing capital.

Svetlana Blagojevic
Banking Partnerships Lead
Senior banking executive with 20+ years leading transformation programs. Svetlana advises on core replacements, regulatory readiness and market entry strategies, helping Nautilus align with incumbent bank processes and compliance needs.

Goran Dragojlovic
Senior Implementation Consultant
With 15+ years of experience in the banking sector, Goran has led card back-office replacements and pan-European payments projects, bringing practical expertise in operational migration, vendor selection and program delivery.
Where we are
Our office is near the Sava River in New Belgrade, Belgrade, Serbia (at the confluence of the Sava and Danube). Our working hours are 09:00–17:00 CET/CEST on working days. The easiest way to reach us is by using the Contact Us page.