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Jonas Herrmannsdörfer

Jonas Herrmannsdörfer

Jonas spent years supporting startups as a React and Next.js freelancer. Now, he leverages his expertise as a Developer Success Engineer at Vercel to help customers succeed. When he's not programming, Jonas enjoys preparing the perfect espresso.
Vercel, Germanyherrmannsdoerfer.dev/enherrmannsdoerfer
Interests:
reactnext.jstypescriptgraphqlproductivityfuture of developmentreact server components
Mastering Next.js Cache Components
React Advanced 2026React Advanced 2026
Upcoming
Mastering Next.js Cache Components
Next.js 16 introduced cache components, a fundamentally new approach to caching that replaces implicit behavior with explicit, composable control. In this talk, I'll build a dashboard from scratch to show you how cache components work in practice: how the static shell gets prerendered and served instantly from the edge, how 'use cache' caches expensive data on your schedule, and how Suspense streams dynamic content in real time, all in the same route. You'll see the three 'use cache' variants in action, learn the donut pattern for maximum performance, understand why generateStaticParams matters more than you think, and walk away with practical patterns for cache invalidation that work in production.
next.js
Analysing and Optimising Web Apps with AI Agents: From Codebase to Infrastructure
React Advanced 2026React Advanced 2026
Upcoming
Analysing and Optimising Web Apps with AI Agents: From Codebase to Infrastructure
Workshop
AI agents can do much more today than generate code. Used well, they can read code, inspect HTTP responses, analyze build logs, evaluate deployment metadata, and help systematically find performance, cost, and infrastructure issues.In this 3-hour workshop, we build a practical agent workflow for web applications. We start with an external audit of a running app, then analyse common issues in a Next.js codebase and connect the findings with infrastructure data such as logs, deployments, caching behaviour, and metrics. The Vercel CLI is used as a concrete example, but the concepts also apply to other platforms with a CLI or API, such as Cloudflare, Netlify, or AWS.Participants will learn how to create repeatable agent skills for audits and debugging, how to build safe read-only workflows, and how to structure results so they lead to concrete technical actions instead of vague recommendations.
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next.jsartificial intelligence