Performance & accessibility
Data-heavy UIs that stay fast on mid-range hardware: render budgets, reflow discipline, keyboard and screen-reader paths treated as requirements rather than a pass at the end.
Munich, Germany · Frontend Architect
I build frontends that stay fast at scale.
I'm Hesham Hassan — a senior frontend engineer and team lead with thirteen years behind me, most of it spent making high-performance, accessible web applications for international brands.
13+Years shipping frontend
5+Years in AEM
1CSS Grid course on Udemy
2016Based in Munich since
01
What I'm brought in for
Design engineering
I came up through web design and UX, so I speak both languages. Component systems get built with the design team, not handed over a wall — which is why I often end up in the UX-engineer seat.
Architecture & team lead
React, Vue and five years deep in Adobe Experience Manager, leading mixed teams for international brands and staying in weekly contact with the client side.
Architecting an AI Assistant into a Zero-Build Website
Eight decisions behind ChefAI — a production agentic chatbot shipped on a platform with no bundler, no framework runtime and nothing to compile. What I chose, what it cost, and…
CSS Grid Simplified
CSS Grid Layout is a powerful layout system in CSS. Unlike Flexible Box Layout (Flexbox), which is designed for single-axis layouts (either row or column), CSS Grid is optimized…
Improving DOM Reflow & Repaint in Browsers
Efficient web performance is crucial for providing a smooth user experience. Understanding and optimizing DOM reflow and repaint processes can significantly enhance performance,…