Many developers create a separate layer for working with APIs, but Nikita believes that this approach is inefficient — it is better to generate code from your API contract. The talk will cover the following topics: how does SDK differ from API, and why is SDK preferable for development? How can you automatically generate an SDK for Swagger and GraphQL? What should you do if you don’t have an API contract? And finally, why is it important for backend developers to understand React? The talk will help optimize development processes and simplify team interactions, making working with APIs more predictable and convenient.

In this talk, we will discuss how to use A/B testing to optimize mobile applications and improve user experience. Using real case examples, we will explore how to properly implement experiments, interpret their results, and make data-driven decisions. We will also cover common mistakes to avoid and share best practices we use at Wix.

In this talk, I’ll try to explain why you might need Effect.ts, what advantages it offers, whether you're working on the backend or frontend, and most importantly – I’ll convince you that if you know React, you already know Effect.ts.

In this talk, I'll discuss how Reacts' often overlooked concurrent features like startTransition, useDeterredValue and Suspense can transform an application's performance and responsiveness. Participants will learn practical techniques to prioritise critical updates, gracefully handle loading states, and create fluid user experiences even with complex data interactions.

This talk will introduce you to some advanced TypeScript techniques that can make your React components more expressive and predictable. We’ll cover union types, discriminated unions, and conditional types, providing practical examples that demonstrate how these tools can help model complex component behaviors. You'll gain valuable insights into how TypeScript can improve your React components, providing a foundation to explore and apply these powerful features in your projects.

The use of micro-frontends and monorepos has significantly accelerated development in our team. In our talk, we'll share how we dealt with common challenges, like integrating products with independent release cycles, swapping dependencies in runtime, and optimizing DevEx during the transition to local HTTPS + H2. We'll give you some practical advice from real-life examples on improving your development process while keeping things flexible and fast.

Here you'll hear a story about how a framework can make your life easier in a huge project. Story about our pains, tears and joys at Wix Editor.

This talk makes AI approachable to the everyday developer to drive real-time business outcomes and goals. We explore running AI locally, getting around some serious limitations with AI like hallucinations and knowledge cutoff, and creating better user experience with AI.

Millions of daily users, hundreds of clients, one embeddable widget. How did we build it and what could possibly have gone wrong?