React, TypeScript and Vite
Front-end work built with React and TypeScript, using Vite for a fast, modern development experience.
Full-Stack Developer from Aarhus, Denmark
Halfdan Harring is a full-stack software developer from Aarhus, Denmark. He works across the front end, back end and mobile, building apps, web apps and SaaS products with a modern, practical toolchain.
Development stack
Firebase, Firestore and Cloud Functions
Backends and real-time data built on Firebase, Firestore and Cloud Functions, suited to shipping products quickly without heavy infrastructure.
Capacitor and mobile apps
Cross-platform mobile apps built with Capacitor, sharing a single codebase across web and native.
SaaS, MVP and product development
End-to-end product development, from MVP to live SaaS, with a focus on real usage and steady iteration.
AI-assisted development
An AI-assisted workflow using Cursor and ChatGPT to move faster from idea to working software while keeping control of the architecture.
Explore the work
- GitHub
Code and open work.
- JegUdvikler.dk
Web development and digital solutions.
- HalfdanHarringBlog.dk
Writing on development, AI and software.
- App portfolio
Apps and products built by Halfdan.