> Markdown version of [/@daniel-afonso](https://www.wearedevelopers.com/@daniel-afonso). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Daniel Afonso Senior Developer Advocate at PagerDuty focused on the JavaScript ecosystem and testing. ## About Daniel Afonso helps developers make sense of modern web frameworks and tools. As a Senior Developer Advocate at PagerDuty and part of the SolidJS DX team, his background spans the full stack, with past work ranging from IoT devices to fraud detection. He regularly explains the evolution of JavaScript testing and tackles abstract concepts—like hydration and fine-grained reactivity—using accessible mental models. When away from a keyboard, he is likely reading comic books or watching superhero movies. ## Past Sessions ### World Congress 2025 · July 9, 2025 Berlin, Germany - [The 2025 State of JavaScript Testing](https://www.wearedevelopers.com/videos/1678-the-2025-state-of-javascript-testing) · 30 min · 🎥 Watch recording ### World Congress 2024 · July 17, 2024 Berlin, Germany - [A nerdy guide to the web trending concepts](https://www.wearedevelopers.com/events/world-congress-2024/sessions/34-a-nerdy-guide-to-the) · 30 min ## Videos - [The 2025 State of JavaScript Testing](https://www.wearedevelopers.com/videos/1678-the-2025-state-of-javascript-testing) · Daniel Afonso ## Links - [X](https://twitter.com/danieljcafonso) - [LinkedIn](https://www.linkedin.com/in/danieljcafonso/)