Keycloak Experts in Stuttgart
, vetted and available through precise AI matchingHire experts who configure identity realms, connect enterprise directories and secure Spring Boot or Kubernetes workloads with Keycloak. FRATCH matches you quickly with vetted, available freelancers whose skills fit your project.
Meet FRATCH Experts in Stuttgart, who have recently used Keycloak
Sercan T.
Last position:
Co-Founder & Lead Software Architect at Pflege-Pfad
- Focus: System architecture, cloud-native platforms, microservices, API design
- Product: Pflege-Pfad is a digital placement platform that directly connects relatives of people in need of care with verified care services and caregivers – without an agency and without ongoing fees.
- Business analysis & process design:
- Analysis of the German care market and identification of the key pain points of both target groups.
- Modeling of core business processes: registration, verification, care request, application, placement, and rating.
- Definition of the business model as a freemium/premium model with optional contact unlocking.
- Creation of user stories and requirements documentation for relatives, care services, and administrators.
- Design of trust and quality assurance mechanisms with document upload, admin review process, and rating system.
- Coordination with stakeholders and validation of product decisions with potential users.
- Technical implementation:
- Design and implementation of the entire platform architecture as the sole developer.
- Design and implementation of a REST API with Spring Boot and Kotlin, including JWT-based authentication.
- Development of the frontend as a single-page application with Angular 17.
- Implementation of the AWS infrastructure with EC2, RDS PostgreSQL, S3, CloudFront, and IAM.
- Document upload with AWS S3 using presigned URLs to verify care services.
- Email notifications via Resend API.
- AI-supported care service search via OpenAI API.
- Implementation of complete user flows such as registration, login, password reset, and the placement process.
- Development of an admin panel for user and care service management as well as analytics.
- CI/CD with GitHub Actions and containerized deployments with Docker.
- End-to-end tests with Playwright.
Technologies: Kotlin, Spring Boot 3, Spring Security, JWT, JPA/Hibernate, PostgreSQL, Angular 17, TypeScript, RxJS, AWS (EC2, ECS, S3, CloudFront CDN, RDS PostgreSQL, IAM), nginx, GitHub Actions, Playwright, Maven, Git, OpenAI API, Resend API, Docker, Scrum, i18n (DE/EN/TR), Kiro, feature flag architecture.
Will O.
Last position:
Solution Architect at Polizei Behörde Stuttgart
Designed a migration strategy for WLS applications to BKA Cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture
Integrated new CI/CD processes using Azure Pipelines
Quadrupled the processing throughput for personnel security checks
Migrated personnel security screening applications to Docker-based applications
Implemented CI/deployment pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF
Salim C.
Last position:
Cloud / Systems Architect
- Development and introduction of operations processes
- Preparation of complete documentation packages (including incident management and operations support) to meet compliance requirements
- Introduction of a workshop on IaC (Infrastructure as Code)
- Technical consulting for the project security concept (ISMS)
- Installation and operation of Kubernetes clusters on AWS, on-prem, and Azure
- Hybrid cloud architecture design (on-prem, Hetzner, AWS)
- Analysis and troubleshooting of incidents and system outages
- Network adjustments for firewall rules, gateways, OpenVPN settings, and IPsec tunnels (pfSense)
- Technical consulting on Bitbucket, Jenkins, and GitLab CI/CD pipelines
- Consulting on Ansible deployments and infrastructure automation
- Consulting on building a scalable system in the cloud (AWS / Azure)
- Technologies / Tools: Ansible, Terraform, AWS, Azure, VPN, pfSense, Jenkins, Bitbucket, Kubernetes, GitLab Runner, ISMS, Golang, Prometheus, Grafana, S3, Lambda, RDS, ECS, Cognito, OIDC, Harbor, MinIO, Postgres, Redis, Keycloak, Ceph, Proxmox, CloudFormation, PostgreSQL, Flux CD, Hetzner, IONOS, Sonatype Nexus Repository, Entra ID, Dex IdP, Pulumi
Albert F.
Last position:
Lead Product Owner at CMBlu Energy AG
- Lead Product Owner for 4 development teams
- Leading and coordinating a greenfield project with parallel implementation of core components by independent teams; managing dependencies and resources
- Establishing a data lakehouse approach, including analysis of data volumes and future requirements as part of a cloud migration (best-of-breed approach)
- Responsible for requirements analysis, selection, and piloting of a LIMS/ELN system, supported by advising decision-makers and managing external vendors
- Introducing and managing an OpenWeb UI and Azure OpenAI-based RAG system to support knowledge extraction and data-driven analyses
- Setting up, configuring, and managing Jira projects, as well as developing project-specific workflows and automations
- Implementing classic Scrum processes with all ceremonies and taking on the Scrum Master role for all involved teams
- Assisting in hiring through interviews and assessments from a product owner's perspective
- Making key architectural decisions, including selecting the platform for the data lakehouse (Databricks) and the strategic integration of LIMS and analytics platforms
Benjamin S.
Last position:
Design and implementation of a new cloud service at Porsche AG
- Design of a new cloud service
- Requirements Engineering
- API Design (REST API, Kafka)
- Consulting on architecture, feasibility and effort estimation
- Implementation of a microservice architecture
- Implementation of a Spring Boot web service
- Development of REST APIs including business and persistence logic
- Kafka consumers and producers
- Various Excel upload/download scenarios
- Change Data Capture
- Cloud provisioning with IaC/Terraform
- Go-live with 30,000 users
- Operation, support and bug fixing for other services
Environment/tools: GitLab, JIRA, Confluence, IntelliJ, Spring Boot, Java, Docker, Terraform, AWS ECS, Postgres, Apache Kafka, SAP Datasphere, JUnit, Debezium, Apache POI, Hibernate, JPA, Testcontainers
Marcel S.
Last position:
Technical Lead / Lead Developer at REWE digital
- Due to an organizational restructuring towards product-based teams, the implementation of a Data Mesh in the area of Digital Supplier Management (DSM) was decided.
- A highly available real-time Data Mesh for providing large volumes of data via Kafka and REST to other products.
- New development of a core supplier management software in a (micro-)service-based architecture with a modern tech stack.
- Technologies/Tools:
- Java 21
- Spring Boot
- Angular
- TypeScript
- Go
- MapR
- Kafka
- Docker
- Google Cloud Platform (GCP)
- Kubernetes
- Helm
- GitLab CI
- Maven
- JUnit
- Mockito
- WireMock
- Cypress
- Keycloak
- OAuth 2.0 & OpenID Connect
- Humio
- Nexus
- Artifactory
- SonarQube
- Renovate
- Git
- Postman
- IntelliJ
Ahmed F.
Last position:
Senior Lead Engineer (Freelance) at Atruvia AG
- Development of a wealth management application for investing in foreign currencies
- Full-stack development with Angular, Spring Boot, OpenShift, Oracle DB, Kafka
- Design and implementation of a microservice architecture
- Integration into Atruvia's BWS system and connection of multiple interfaces between Atruvia and DZ Privatbank
- Greenfield development of the application from the ground up
- Technical responsibility for architecture and interface design
- Close collaboration with business units and external stakeholders
Felix J.
Last position:
Senior Software Engineer at PCA GmbH
- Developed three applications with Flutter (Dart), Swift (iOS), and Kotlin (Android)
- Responsible for the apps' UI/UX design
- Developed a fingerprint plugin for HidGlobal in Swift and Kotlin
- Used Riverpod and Flutter Bloc for efficient state management
- Used Hive and Isar for local data management
- Used Firebase for backend services (Firebase Cloud Messaging, Analytics, and Firestore)
- Managed code with GitLab, developed using Visual Studio Code and Xcode
Discover over 15,000 top freelancers
Statistics of experts using Keycloak
Aggregated from the professional profiles of matched freelancers.
Experience
16 years (Germany: 18 years)
Position duration
1.9 years (Germany: 1.7 years)
Positions per freelancer
13 (Germany: 14)
Top business areas
Information Technology, Product Development, Operations
Top industries
Automotive, Information Technology, Banking and Finance
Certification focus areas
Information Technology, Operations, Product Development
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
33% (Germany: 55%)
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Stuttgart are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Stuttgart using Keycloak
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Keycloak experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Automotive (88%)
- Information Technology (88%)
- Banking and Finance (63%)
- Transportation (50%)
- Manufacturing (50%)
- Government and Administration (50%)
- Agriculture (38%)
- Food and Beverage (25%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity and access control
Keycloak is an open-source identity and access management system based on standards such as OpenID Connect, OAuth 2.0 and SAML. Companies use it for single sign-on, centralized authentication, user federation and fine-grained authorization across web applications, APIs and internal tools.
Real-world applications
Keycloak supports customer portals, employee access, partner platforms and service-to-service security. It can provide one login across applications while keeping identity policies in a central administration layer.
- Secure Spring Boot and Java applications
- Protect REST APIs and front ends
- Connect customer and partner identity flows
- Add single sign-on across business systems
Ecosystem and tooling
Strong specialists work with Keycloak realms, clients, roles, groups, identity providers and user storage providers. They also understand LDAP and Active Directory federation, custom authenticators, themes, event listeners and administration through the console or APIs. Kubernetes, Docker, reverse proxies and TLS are common parts of the operating environment.
When companies need expertise
Freelance expertise helps when an initial proof of concept must become a reliable production service, or when an existing identity setup needs redesign. Companies also bring in specialists for migrations from legacy SSO products, upgrades, integrations and troubleshooting difficult token or session behavior.
- Define realm and client configuration
- Integrate Azure AD, LDAP or external identity providers
- Design roles, scopes and authorization policies
- Automate deployment and configuration
What strong specialists deliver
A capable Keycloak professional connects identity design with application and infrastructure realities. They document token flows, choose suitable federation patterns, apply least-privilege access and make configuration repeatable across environments. They also test logout, refresh tokens, account recovery and failure paths rather than checking only the happy path.
Collaboration in Stuttgart
Projects in Stuttgart may involve automotive, manufacturing, software or research environments with strict access requirements and several internal stakeholders. A specialist can work remotely with local teams or join on-site workshops when architecture decisions, directory integration or rollout planning require close collaboration. Clear documentation and communication in English or German can support distributed delivery.
Frequently asked questions
Questions about Keycloak? Start with the answers below.
Keycloak provides centralized identity and access management for applications, APIs and services. Companies use it for single sign-on, user federation, social login, role-based access and standards-based authentication with OpenID Connect, OAuth 2.0 or SAML.
Keycloak is self-hosted and highly configurable, which gives companies control over deployment, data and customization. Auth0, Okta and Microsoft Entra ID are managed services that can reduce operational work, so the right choice depends on control requirements, integration needs and internal platform skills.
A strong Keycloak specialist should understand Java, REST APIs, JWTs, OAuth 2.0, OpenID Connect and SAML. Experience with LDAP or Active Directory, Kubernetes, Docker, reverse proxies, TLS and CI/CD is valuable when identity is part of a broader production platform.
The required depth depends on the scope. A simple application integration may need focused configuration skills, while a migration, multi-realm setup or custom authentication flow calls for a professional who has operated Keycloak in production and can handle security, upgrades and recovery scenarios.
Yes. Keycloak configuration, testing and documentation can usually be handled remotely, while workshops for directory access, security reviews or rollout planning may benefit from on-site collaboration in Stuttgart. Agree on access procedures, working language and decision ownership early.
Ask the professional to explain a real authentication flow from login through token validation, refresh and logout. Strong Keycloak specialists discuss threat modeling, realm boundaries, secret handling, monitoring, backup strategy and repeatable configuration instead of focusing only on the administration console.
Keycloak can centralize authentication and account functions, but it does not remove every application responsibility. Applications still need clear authorization rules, user-profile logic and careful handling of identity claims, while Keycloak manages the shared identity layer.
A Keycloak assignment may involve architecture, integration, security review, migration or operational support rather than only realm setup. Freelancers should clarify the deployment model, identity sources, supported applications, required customizations, upgrade policy and who owns production access.
The average hourly rate of freelancers in Stuttgart, Germany who have used Keycloak in their recent projects is 99 €, which corresponds to a daily rate of about 793 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Keycloak in their recent projects, 100% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Keycloak in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Stuttgart, Germany who have used Keycloak in their recent projects are German (100%), English (100%), and Spanish (38%).
The most common industries among freelancers in Stuttgart, Germany who have used Keycloak in their recent projects are Automotive (88%), Information Technology (88%), and Banking and Finance (63%).
The most common business areas among freelancers in Stuttgart, Germany who have used Keycloak in their recent projects are Information Technology (100%), Product Development (100%), and Operations (63%).
Main locations of FRATCH Experts, who have recently used Keycloak
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt Request a free demo
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Philipp Thomaschewski
FRATCH CEO
