Software Developer in Halle (Saale)
Freelance senior fullstack engineer for React, Next.js, Node.js & AI integration — based in the Paulusviertel, serving clients in Halle, Leipzig and across the DACH region.
At a glance
Jörn Dyherrn is a freelance software developer in Halle (Saale), Germany, with over 9 years of experience. He builds web apps, mobile apps, MVPs and AI integrations with React, Next.js, Node.js and AWS — at a transparent fixed price from €3,500, on-site in Halle and Leipzig and remote across the DACH region.
Experienced software development – straight from Halle
Looking for an experienced software developer in Halle (Saale) to reliably deliver your web or app project? I have been building digital products since 2017 — 50+ projects from idea to production, 15+ apps shipped to the stores. No agency overhead, no vendor lock-in: experienced development directly from the person who also writes the code.
In-person meetings in Halle and Leipzig are easy to arrange, while most of the collaboration runs efficiently and transparently remote. You get the reliability of a local partner with the speed of modern, distributed development.
Location
Jörn DyherrnRobert-Blum-Str. 19
06114 Halle (Saale)
Sachsen-Anhalt
How I help in Halle & Leipzig
Web apps with React & Next.js
Fast, SEO-strong web applications — from a landing page to a scalable SaaS platform.
Mobile apps with React Native
Cross-platform apps for iOS and Android from a single codebase, including app store deployment.
AI & LLM integration
Claude API, AI agents and intelligent workflows integrated right into your product.
Cloud & DevOps on AWS
Scalable infrastructure, CI/CD pipelines and monitoring — set up cleanly and maintainable.
Packages, timeline & fixed price
| Service | Typical timeline | Ideal for |
|---|---|---|
| MVP development | 3 days – 2 weeks | Validate an idea fast |
| Web app / SaaS | 1–4 weeks | Portals & platforms |
| Mobile app (iOS + Android) | 2–12 weeks | App products |
| AI & LLM integration | 2 days – 1 week | Smart features & automation |
| Cloud & DevOps | from 1 day / per project | Scaling & infrastructure |
| Tech consulting & code audit | from 1 day | Architecture & 2nd opinion |
All projects at a transparent fixed price — from €3,500. Get the exact calculation for your idea in 60 seconds via the free project estimate.
Frequently asked questions about working together in Halle & Leipzig
Do you work on-site in Halle (Saale)?
Yes. I am based in the Paulusviertel in Halle (Saale). In-person meetings are always possible, while the ongoing collaboration usually runs remote to keep things efficient.
Do you also serve clients in Leipzig?
Absolutely. Leipzig is only about 35 minutes from Halle, so on-site meetings in Leipzig are easy. Many projects for Leipzig clients also run hybrid or fully remote.
Which technologies do you use?
My stack: React, Next.js, TypeScript and Node.js on the web, React Native for mobile, AWS for the cloud — plus AI/LLM integration with the Claude API. Modern, proven and maintainable long term.
What does developing my project cost?
It depends on the scope. The free AI project estimate gives you an initial orientation on effort, timeline and budget in 60 seconds — no obligation.
How quickly can you start?
Usually within 1–2 weeks after signing, and often sooner for urgent projects.
Planning a project in Halle or Leipzig?
Let's talk about your idea — free first consultation, no obligation.