OpenSFTP
A modern SFTP client for macOS, Windows, and Linux. Transfer queues, SSH tunnels, permission management, and a UI that doesn't look like it was designed in 2008.
AI Engineer · Berlin
Software developer.
AI systems, developer tools,
cross-platform apps.
I build things that work reliably and are actually pleasant to use. Most of it is open source. Some has a paid tier for people who want more.
Background
What I do and where I've been.
Computer science degree, a few years in enterprise infrastructure at Deutsche Bahn, then independent. I work on AI systems, tooling, and apps that solve real problems.
AI & Agent Systems
LLM integration, autonomous agents, NLP pipelines. In production, not just demos.
Backend & Infrastructure
Distributed systems, Kafka, Kubernetes, AWS. Previously working on Deutsche Bahn infra at eMundo and DB-Systel.
Desktop & Mobile Apps
Cross-platform with Python, Rust, and React Native. I care about how things feel to use.
Open Source
MIT core for everything. If there's a Pro version, it's a one-time purchase — no subscriptions.
Software
What I've built.
A handful of focused tools. Each one started because I needed it myself.
Beta
Rhythm
A keyboard-driven music player written in Rust. Small, fast, no cloud, no accounts. Auto-play, next/prev navigation, dark UI.
Stack
What I work with.
No strong opinions about tools. These are just the ones I've used enough to trust.
Python
Rust
TypeScript
React / Next.js
React Native
PySide6
FastAPI
Node.js
Java / Spring Boot
PostgreSQL
pgvector
Kafka
Docker
Kubernetes
AWS
DigitalOcean
Hetzner
Cloudflare
Claude / OpenAI
Solidity
Nginx
Get in touch.
Open for consulting, collaboration, or just a conversation about something interesting. Email is fine.