WE ONLY DO AUTHENTICATION Keycloak, SSO & OpenID Connect experts

8 Years in Business · 100+ Clients Worldwide

Your Authentication Partners

Two authentication experts—from architecture to implementation—with complementary backgrounds.

Mathieu PASSENAUD

Authentication Expert

8 years mastering authentication from architecture to implementation: SSO design, LDAP/AD integration, Keycloak extensions, and secure infrastructure.

Enterprise experience with companies like Berger-Levrault and OVH, bringing proven methodologies and large-scale deployment expertise.

Background: Enterprise-grade solutions for established organizations

Loïc MERCIER DES ROCHETTES

Authentication Expert

8 years mastering authentication from architecture to implementation: SSO design, LDAP/AD integration, Keycloak extensions, and secure infrastructure.

Freelance experience building robust authentication systems from scratch for small-scale and fast-growing businesses, bringing forward-thinking architectures and innovation to fast-paced environments.

Background: Custom-built solutions for emerging companies

Consulting

We have a rule: write everything.

Our Proven Process

1

Discovery

Understanding your needs and current infrastructure

2

Design

Architecture proposal with detailed documentation

3

Implementation

Development, testing and deployment

4

Support

Long-term support and maintenance

Average project: 2-4 weeks | 100% documentation guarantee

WORKSHOP

With your team and a whiteboard, we analyze in depth your authentication needs and SSO possibilities for your specific use cases.

A technical solution MUST FIT YOUR NEEDS. Together we identify OAuth2 flows, OpenID Connect integration, LDAP/Active Directory connections and security requirements.

A complete report is delivered with all interactions between applications and your future SSO, including architecture diagrams, technical recommendations and deployment plan.

Keycloak architecture and deployment

AUDIT

Ensure the security and efficiency of your authentication systems through our comprehensive audit services. In-depth analysis of Keycloak, OAuth2/OIDC configurations, and IAM infrastructure.

A detailed report is delivered with all identified issues, missing concepts, security vulnerabilities or configuration errors. The report lists all solutions with priorities and impacts.

All about our Keycloak audit

DEVELOPMENT

Need custom login actions? Specific identity providers or custom user databases? Almost everything is possible with Keycloak through its extension system (SPI).

From a functional prototype to a fully tested production-ready solution, with all necessary documentation for your team: source code, unit tests, deployment guide and maintenance documentation.

Keycloak extension development

ARCHITECTURE

Craft robust and scalable authentication architectures tailored to your business objectives. High availability, Keycloak clustering, fail-over and disaster recovery strategies.

From bare metal servers to cloud providers (AWS, Azure, GCP, OVH), Kubernetes clusters or Clever Cloud... A solution that scales, matching your infrastructure and performance requirements.

Keycloak architecture and deployment

We Support You Long-Term

Our commitment doesn't end at deployment. We accompany you throughout your operations, answering your questions, helping you troubleshoot issues, and guiding you through upgrades and new feature integration as your needs evolve.

Keycloak support and maintenance

Operational Support

Regular Updates

Training & Knowledge Transfer

We helped them

Keycloak As A Service

Enterprise-grade authentication, zero infrastructure headaches

Clever Cloud provides an IT Automation Platform for developers with bulletproof infrastructure, auto-scaling, fair pricing and an awesome support.

Keycloak on Clever Cloud allows you to effortlessly set up a tailored authentication and access management solution, that you can adjust to your needs and workloads.

Performance & Reliability

Auto-scaling based on traffic
High availability architecture
Up to 99.9% SLA uptime
Backups & disaster recovery

Developer Experience

Production-ready in minutes
Real-time logs & metrics
Custom plugins support
Custom theming
Easy import/export

Security & Maintenance

Automatic security patches
Keycloak upgrades
Data encryption at rest & transit
No maintenance burden
24/7 expert support

"Focus on your business logic while we handle Keycloak infrastructure. Whether you're a startup or an enterprise, our managed Keycloak scales with your needs - from 100 to 100M users."

Capture d'écran interface Keycloak - Console d'administration

Open Clever-cloud console and start Keycloak

Frequently asked questions

Who are the Please Open It Keycloak consultants?

Authentication experts, including Mathieu Passenaud and Loïc Mercier des Rochettes, who have been helping startups, large companies and public administrations with Keycloak, OAuth2 and OpenID Connect for 8 years. More than 100 clients worldwide have trusted us, among them Airbus, Cdiscount, Ingenico and Atos.

Which Keycloak services do you offer?

Scoping workshops, security and configuration audits, custom Keycloak extension (SPI) development, SSO architecture design and deployment, support and maintenance, and training for your teams. We also offer a managed Keycloak with our partner Clever Cloud.

Why work with a Keycloak specialist?

We only do authentication. Keycloak is powerful but demanding: its security options, extension points and upgrades call for deep expertise. We share our work on our technical blog and on GitHub.

What is Keycloak As A Service?

A dedicated, managed Keycloak offered in partnership with Clever Cloud: deployed in seconds, highly available, with managed upgrades and backups and data hosted in Europe. You keep your themes and extensions.

Do you work in English and French?

Yes, we work in English and French, for clients in France and all around the world.

Contact

Technical blog

See what we are working on : authorizations platform, Keycloak deployment, integrations, plugins...

Visit our Technical Blog

Contact us

Any question ? Want more information ? Follow us or you can reach out to us via email.

contact@please-open.it

@please-open-it.bsky.social