Freelance Keycloak Expert · Trainer · Software Consultant
📍 Darmstadt, Germany | 🌍 Clients across Europe | 🔐 IAM since 2015
I help companies get Identity & Access Management right — with Keycloak at the center.
Whether it's a deep-dive into a broken authentication flow, a custom SPI implementation, or a two-day workshop that turns your team into Keycloak power users: that's my daily work.
No affiliation with CNCF or the Keycloak product team — just someone who's been living and breathing this stuff since 2015, and full kudos to the amazing team behind Keycloak!
- Consulting & Support — Architecture reviews, troubleshooting, migration projects, and hands-on implementation support around Keycloak & IAM
- Training & Workshops — Public and on-site workshops on Keycloak, OAuth 2.0, OpenID Connect, FIDO2/WebAuthn, and modern IAM concepts
- Development & Integration — Custom Keycloak SPIs, extensions, and integrations with your existing stack (Java · JavaScript · and beyond)
Keycloak OAuth 2.0 OpenID Connect FIDO2 / WebAuthn / Passkeys SAML 2.0
Java Quarkus Spring Boot Docker IAM Architecture
A few projects you might find useful — and yes, I also contribute to Keycloak itself:
- testcontainers-keycloak — Testcontainers extension for running Keycloak in integration tests. Widely used, actively maintained.
- keycloak-extensions-demo — Example SPI implementations to kickstart your own Keycloak customizations.
I publish videos on Keycloak, IAM, and related topics — tutorials, demos, and the occasional deep dive.
The best place to start is n-k.de — you'll find details on all services, references, and a direct booking option for Keycloak support sessions and workshops.
⚡ When not wrangling tokens and identity protocols, I'm probably out on my road bike somewhere around Darmstadt.





