Portfolio
Where engineering precision meets human-centred design
About Me
I'm a full-stack developer with an M.Sc. in Human-Computer Interaction from LMU Munich. That degree shapes how I code: I build things that are technically solid and genuinely pleasant to use — because I've studied why interfaces succeed or fail for real people. TypeScript, React, and Node.js are my daily tools.
I also perform as a DJ — a discipline that trains the same instinct as building great UX: reading the room, adapting in the moment, and crafting an experience that feels effortless even when the work behind it isn't. Clean code, like a great set, is about the perfect interplay of every element.
Tech Stack
Projects
A selection of my development work
cemuener.de
My personal portfolio — built from scratch with Astro, TypeScript, and SCSS. Bilingual (DE/EN), SEO-optimised, statically generated, and hosted on GitHub Pages.
HCI Interaction Logger
A research tool built during my M.Sc. HCI programme. Records and replays user interaction flows on prototype UIs, enabling rapid usability analysis without third-party tracking tools.
DJ Set Planner
A personal Node.js + React app to organise set lists, manage BPM progressions, and track music metadata. Designed for extensibility from day one.
Currently Focused On
Deepening expertise in modern frontend architecture and web accessibility. Exploring edge deployment with Cloudflare Workers and building open-source side projects.