SaaS Development · IT Consulting · Stuttgart

Digital products that make an impact.

I combine strategic consulting with hands-on SaaS development. From initial concept to production-ready release — everything from a single source.

Get in touch Explore services

Developer workspace with holographic UI elements and code dashboards

Services

Two core areas — one goal: measurable digital results.

SaaS Development

From idea to scalable product. I build modern web applications with proven technologies.

Full-stack development (React, Next.js, Node.js)
Cloud-native architecture (AWS, Vercel)
CI/CD pipelines & automated testing
MVP development in 4–8 weeks

Consulting & Advisory

Strategic technology consulting for companies that want to grow digitally.

Technical due diligence & audits
Architecture reviews & modernization
Product & technology roadmaps
Team coaching & process optimization

Our Approach

AI-First Engineering

We follow AI-first principles in everything we build. Cutting-edge AI tools are an integral part of our development process — from code generation to architecture decisions.

Claude Code

Primary AI development tool

AI-powered code editor by Anthropic — generates, refactors and debugs code directly in the CLI

OpenAI Codex

Code generation & analysis

Code generation agent by OpenAI — translates natural language into working code via CLI and IDE

Qwen 3

Open-weight model for specialized tasks

Open-weight language model by Alibaba — ideal for specialized tasks and local hosting, privacy-friendly

Azure AI Foundry

Enterprise AI platform

Microsoft's enterprise AI platform — Model Catalog, Prompt Flow and managed endpoints in one

AWS Bedrock

Managed AI infrastructure

Amazon's managed AI service — access to foundation models from Anthropic, Meta and Mistral via a single API

Infrastructure

Hosting & Cloud

I choose infrastructure to match the project — from cost-optimized European hosting to hyperscaler clouds for maximum scale.

Hetzner

European hosting with best price-performance. Bare-metal servers and cloud in German data centers — ideal for GDPR-compliant projects.

AWS

Global cloud infrastructure with the broadest service portfolio. From S3 and Lambda to Bedrock — for projects that need to scale worldwide.

Microsoft Azure

Enterprise cloud with seamless Microsoft integration. Azure AI Foundry, Cosmos DB and DevOps pipelines for enterprise clients.

Featured Projects

Selected projects that illustrate my approach.

SaaS Platform

Diktatheld

Free learning platform for personalized German dictation exercises with speech output, printable practice packs, and learning games — for primary school children in grades 1–4.

Next.jsTypeScriptTailwind CSSOpenAI

Hosted in Germany

SaaS Platform

AI Casefile

Compliance platform for documenting and managing AI systems — with registry, approval workflows, and audit trails in line with the EU AI Act.

Next.jsTypeScriptPostgreSQLAWS

Hosted in Germany

Concept · Coming Soon

Knowledge Podcast

AI-generated knowledge podcasts for kids (ages 6–12). Fully automated pipeline from research to finished audio with music and sound effects.

TypeScriptOpenAIElevenLabsNode.js

Concept · Coming Soon

Concept Visualizer

AI-powered flat-lay infographics that build up complex topics layer by layer — from photosynthesis to AI agents.

TypeScriptOpenAISharpNode.js

Let’s talk.

Whether you have a concrete project or just want to explore options — I look forward to your message and will get back to you within 24 hours.

info@hartie-labs.com