React Universe Meetup, New York
React Universe Meetup, New York
Join us in NYC or online for React Universe Meetup: tech talks, real-world insights, and networking with React Native devs. June 24, 2025.
React Universe Meetup, New York

React Universe Meetup is back in the US, and this time we’re landing in New York City at The Farm Soho. We’re joining forces with Embrace to bring you a packed evening of cutting-edge insights, real-world case studies, and practical tips for building better cross-platform apps.
Who's this meetup for?
If you're building with React Native, scaling full-stack mobile apps, or figuring out how to ship and observe complex deployments—this meetup is for you.
You’ll be in good company with engineers, app architects, and folks who care deeply about performance, code quality, and real-world trade-offs. Expect solid talks, sharp minds, and good vibes. No fluff, just practical insights and time to connect with other people who get it.
Agenda
6:00 PM – Doors open, grab a slice
6:30 PM – Intro: Welcome to React Universe Meetup by Mike Grabowski, CTO & Founder at Callstack and Andrew Tunall, President at Embrace
6:40 PM – Observability for Application Deployments by Pepijn Senders, Principal Software Engineer at HelloFresh
How does one prove that rendering dependencies are slow? In this talk, I’ll share how we used observability to build a data-driven case for improving end-to-end network performance. By tracing latency across the stack, we uncovered hidden bottlenecks and shifted the conversation from assumptions to evidence.
7:05 PM – Elevate your React Native observability with OpenTelemetry by David Rifkin, Developer Relations at Embrace
In this talk, David Rifkin from Embrace, the user-focused observability company, will talk through why production data matters for mobile and frontend engineers. He will discuss:
- What OpenTelemetry is (briefly, he promises) and how it helps developers collaborate across teams
- The complexity of mobile observability, and how to use it to build more resilient apps
- How React Native engineers can make sense of the JS/native gap in production
7:30 PM – Brownfield Incremental React Native Adoption x RNEF by Michał Pierzchała, Principal Engineer at Callstack
Adding React Native to existing native projects is hard today, involving a lot of moving code around, adding legacy tooling (CocoaPods) and making native engineers familiar with Node.js ecosystem. In this talk we'll go through a modern way of integrating React Native into a sample iOS and Android apps, utilizing `react-native-brownfield` library and RNEF, which makes the whole process easier and less disruptive for iOS and Android developers.
8:00 PM – Networking
RSVP now
Seats are limited and access to the livestream requires registration. Whether you’re joining us IRL at The Farm Soho or from across the globe, save your spot now.
React Universe Meetup, New York
Join us in NYC or online for React Universe Meetup: tech talks, real-world insights, and networking with React Native devs. June 24, 2025.

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At Callstack, we work with companies big and small, pushing React Native everyday.
Code Sharing
Implement effective code-sharing strategies across all platforms to accelerate shipping and reduce code duplication.
Migration to React Native
Plan and execute a migration from native or hybrid stacks to React Native with minimal disruption and clear technical direction.
React Native Brownfield
Integrate React Native into existing native application and start sharing code across platforms immediately.
React Native Trainings
Equip your team with React Native skills through tailored training sessions.

React Native Performance Optimization
Improve React Native apps speed and efficiency through targeted performance enhancements.
Quality Assurance
Combine automated and manual testing with CI/CD integration to catch issues early and deliver reliable React Native releases.
Scalability Engineering
Design and validate React Native architectures that scale-supporting high traffic, modular teams, and long-term performance.
Code Sharing
Implement effective code-sharing strategies across all platforms to accelerate shipping and reduce code duplication.