Freelance Keycloak Expert Β· Trainer Β· Software Consultant
π Darmstadt, Germany | π Clients across Europe | π IAM since 2015
I help companies get Identity & Access Management right β 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 β just someone who's been living and breathing this stuff since 2015, and full kudos to the amazing team behind Keycloak!
- Consulting & Support β Architecture reviews, troubleshooting, migration projects, and hands-on implementation support around Keycloak & IAM
- Training & Workshops β Public and on-site workshops on Keycloak, OAuth 2.0, OpenID Connect, FIDO2/WebAuthn, and modern IAM concepts
- Development & Integration β Custom Keycloak SPIs, extensions, and integrations with your existing stack (Java Β· JavaScript Β· 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 β and yes, I also contribute to Keycloak itself:
- testcontainers-keycloak β Testcontainers extension for running Keycloak in integration tests. Widely used, actively maintained.
- keycloak-extensions-demo β Example SPI implementations to kickstart your own Keycloak customizations.
I publish videos on Keycloak, IAM, and related topics β tutorials, demos, and the occasional deep dive.
The best place to start is n-k.de β you'll find details on all services, references, and a direct booking option for Keycloak support sessions and workshops.
β‘ When not wrangling tokens and identity protocols, I'm probably out on my road bike somewhere around Darmstadt.





