React Athens MeetUp #10
Details
👋 Hello guys and gals, 👋
🎉🎉🎉 Get ready for the after Summer event. 🎉🎉🎉
Doors open at 18:00
18:15 - 18:30 - Gathering and welcome from the organizers.
18:30 - 19:00 - Faris Aziz - The Hidden Battleground, Engineering High-Conversion Payment Experiences
19:00 - 19:30 - Nestor Lopez Federation of Specialists: From Module Federation to AI Orchestration
19:30 - 20:00 - George Karalis - Exploring MCP Apps: Practical Use Cases for the Enterprise
Get your CityJS Athens Blind tickets now before the end of Month as our prices will go Save 50% off.
Faris Aziz - The Hidden Battleground, Engineering High-Conversion Payment Experiences
For most products, the checkout is the most critical and fragile part of the funnel. It’s where traffic turns into revenue, where small UX regressions compound into large financial losses, and where system failures become immediately visible on the balance sheet. This talk explores how to build resilient, high-converting payment experiences as systems, not screens. Drawing on hundreds of A/B experiments run on tens of millions of users and lessons from operating a global subscription platform generating tens of millions in annual recurring revenue, we’ll look at how payment orchestration evolves as products scale across regions, currencies, and providers. We’ll cover how to design checkout UX that converts consistently even for low-frequency products, how to orchestrate multiple gateways without leaking complexity to the user, and how to test and monitor flows where failure tolerance is extremely low. Along the way, I’ll even show a shocking example where adding just two form inputs, implemented correctly, could cost over a million dollars in lost revenue. This is a practical talk from the trenches about why checkout is a hidden battleground, and how resilient payment engineering protects both conversion and growth.
Nestor Lopez // Federation of Specialists: From Module Federation to AI Orchestration
The industry has already learned how to break frontend monoliths apart without breaking the product experience. A similar shift is now happening in AI. This talk traces the move from federated UI and composable runtime systems to a federation of AI specialists—and shows why production AI works better when agents have clear roles, controlled tools, workflow hooks, shared collaboration context, and policy boundaries.
George Karalis - Exploring MCP Apps: Practical Use Cases for the Enterprise
What happens when you give an LLM structured access to your company's actual systems, its APIs, data, internal tools? MCP Apps are a new extension to the Model Context Protocol that lets servers return interactive HTML interfaces, dashboards, forms, data explorers, rendered directly inside the conversation. Instead of bouncing users between chat and separate web apps, the UI lives right where the discussion happens, with bidirectional data flow and sandboxed security. We'll look at how tool handlers expose API endpoints to LLMs, how OAuth fits into the picture, and how the data and context flow into a React app rendered inside the conversation. Whether you're considering MCP for your own product or just curious about what generative UI looks like, this talk will give you a practical intro on building AI-native enterprise tools with React.
A word from our sponsors.
🏆Mini surprise🏆 🍕Pizzas🍕 🦸♀️Socializing🦸♂️!