Engineers will build and operate a complete payment system on their laptop
From issuing payment cards to processing contactless transactions and printing receipts. Gain deep, hands-on understanding of the payment infrastructure that powers billions of transactions worldwide.
What We Build Together
Issue Payment Cards
Create personalized payment cards using JavaCard technology. Understand card chip architecture and payment application deployment.
Process Real Transactions
Use NFC readers to process contactless payments. Print custom receipts with your logo.
Operate Both Sides
Run issuer (bank) and acquirer (processor) systems. Experience the complete authorization flow from both perspectives.
Master ISO 8583
Deep dive into the messaging standard that powers global payment networks. Build, route, and process real payment messages.
Why This Workshop Matters
Most engineers see only fragments of the payment ecosystem. They might understand acquiring at a high level, or work with issuing APIs, but rarely experience both sides of the network. This workshop changes that. Engineers understand how their code fits into the bigger picture, make better architectural decisions, and build more robust payment integrations.
What Participants Say
As a payments product manager, I was completely intrigued by the concept of building a tap to auth process with my very own computer, in a matter of 90 minutes. As a developer by hobby, and less so by trade, I was totally in awe at how well this workshop was put together. The directions were clear, resources plentiful provided beforehand, and the only hiccups I experienced were of my own lack of coding skills, which Pavel and team graciously guided me through. This workshop is a must, not only to blow your own mind with creating a fundamental payments process, but to be able to work with the team that put it together as well. Thanks for the experience!
The workshop was one of the most practical deep dives into card authorization flows I've attended. It bridges the gap of viewing the authorization stream from one end to seeing the full end-to-end card flow implementation in action. Its a must attend for anyone building payment infrastructure.
An excellent workshop that clearly explains how card payments work behind the scenes. The hands-on exercises made complex topics like EMV, ISO 8583, and transaction routing finally click. I loved how practical and engaging it was - we didn't just learn the theory, we actually built and tested the full payment flow. The code examples for every part of the transaction chain were especially helpful. Super insightful experience!
About the Speaker & Facilitator
Pavel Gabriel
- with nearly 20 years in fintech, I've built and scaled payment solutions
across the full technology stack. I've designed resilient payment architectures for companies like Moov Financial,
architecting their multi-network card processing infrastructure. I author and maintain open-source Go packages
that provide foundational building blocks for payment systems, including ISO 8583, BER-TLV, EMV,
and other critical payment protocols. I share this knowledge through workshops and talks at conferences, developer meetups, and engineering teams worldwide.
Available Formats
Conference Talk or Demo
Hands-On Workshop
Bring This Workshop to Your Conference or Team
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