
Keycloak Experts in Cologne
for secure identity systems, matched in minutes with vetted and available freelancersWork with specialists who configure realms, integrate OpenID Connect and SAML, and connect Keycloak with enterprise applications, APIs and Kubernetes environments. FRATCH finds the right vetted, available freelancer quickly through precise AI matching.
Meet FRATCH Experts in Cologne, who have recently used Keycloak
Pierre G.
Last position:
Ansible Automation, Windows Third Level Support at DB InfraGO AG
- PRISMA project
- Ansible automation
- Windows third-level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019
Manuel S.
Last position:
Project Manager at Univention
Industry: digital sovereignty, public sector
Responsibilities:
- Project coordination (teams: consulting, development, testing, deployment/operations)
Products and standards:
- Jira, Confluence, Asana, Miro, Mural
- Open Source, Keycloak, Open Xchange, ownCloud
Hamdi R.
Last position:
Full-Stack AI Developer at Karray-Pflege GmbH
PFS-Matching-App
- Integrated an intelligent LLM chatbot using LangChain4j, enabling conversational AI, context-aware question answering, document summarization, and autonomous tool execution.
- Implemented Retrieval-Augmented Generation (RAG), prompt engineering, and AI agent workflows to connect large language models with enterprise data and backend services.
- Developed RESTful APIs and secure backend services to support AI-driven interactions and business processes
Markus G.
Last position:
Full Stack Developer at REWE Digital
- A warehouse valuation system was reimplemented using Java, Spring Boot, and Camunda. The backend solution focuses on integration and batch calculations, the frontend on managing formulas and reviewing results.
- Java 21
- Spring Boot
- JPA
- Maven
- REST
- Kafka
- PostgreSQL
- DB2
- Liquibase
- Google Cloud Storage
- Keycloak
- GitLab CI/CD
- Helm
- Terragrunt
- SonarQube
- Angular
- IntelliJ
- JUnit 5
- Mockito
- Open API
Jens H.
Last position:
#52 Test Manager in Safety-Critical Infrastructure at Telecommunications Company
- Network elements, network, operational and operator-related systems
- Supporting around 20 different products (managed agile)
- Requirements analysis and management (functional and non-functional)
- Test concept and planning (scope, test phases, effort, schedule, resources, organization, etc.)
- Aligning approach with clients and service providers
- Managing and assisting in creation of test cases for system, integration and end-to-end tests
- Guiding and supporting test execution
- Defect management and planning bug fixes with external providers
- Preparing and facilitating workshops
- Regular reporting and creating automated test reports
- Further development of agile testing methodology and configuration of supporting tools
- Conceptual support in developing a quality seal for rating product and service quality of internal and external providers
- Requirements engineering based on ISO/IEC 25010, Scrum, SaFE
- BMC Remedy, Atlassian Confluence, Atlassian Jira (including plugins Xray, Structure), Microsoft Office (incl. Visio), Obsidian, doxis document management system, Gitlab, Obsidian
Ayhan G.
Last position:
Senior QA Engineer / Test Automation Engineer / SDET at Rewe digital
Consulting, designing, and implementing the software testing lifecycle for multiple Android apps and backends Introducing test automation with Appium, SpringBootTest, RestAssured Setting up and managing emulators Developing an E2E library, an integration library, a Testcontainers library, and other libraries Developing, implementing, and advising on CI strategies Building the test environment with Testcontainers and virtualization Developing and implementing test cases for integration tests and end-to-end tests Establishing a maintainable test architecture with low entry barriers to simplify the creation of automated tests Some tools and technologies used: JUnit, RestAssured, Testcontainers, Kubedock, Appium, Android emulator, Jira Xray, Mockito, WireMock, Spring Framework, Kotlin
Vladimir M.
Last position:
Developer at Financial services provider
- Support and further development of a framework for developing applications in a banking association: DynS/OSPE
- Migration of the framework to Java 11 and Java 17
- Java8, Java11 and Java17, Spring, Spring-Batch, Spring WebServices, Spring-Security, Spring-Data, JPA, Hibernate, OpenSource libraries etc.
- XML, JAXB, JSON, REST and SOAP services, DB2, Oracle, WebSphere or Liberty AS, FreeMaker, Junit, mock libraries, JaCoCo, Maven, IntelliJ, Eclipse, GitHub, SVN, Jira
Discover over 15,000 top freelancers
Statistics of experts using Keycloak
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 18 years)

Position duration
1.2 years (Germany: 1.7 years)

Positions per freelancer
25 (Germany: 14)

Top business areas
Information Technology, Product Development, Quality Assurance

Top industries
Automotive, Information Technology, Banking and Finance

Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
100% (Germany: 55%)
Doctorate
17% (Germany: 10%)

Certifications per freelancer
2

Most common languages
German, English, French

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 Cologne 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 Cologne 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 (86%)
- Information Technology (86%)
- Banking and Finance (71%)
- Healthcare (71%)
- Government and Administration (71%)
- Aerospace and Defense (57%)
- Transportation (57%)
- Retail (57%)
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 for centralising login, permissions and user administration. It provides single sign-on, social login, multifactor authentication and standards-based access for web applications, APIs and services. Companies use it to replace scattered authentication logic with one controlled identity layer.
Realms and protocols
Keycloak organises users, clients, roles and policies through realms. Strong professionals configure OpenID Connect, OAuth 2.0 and SAML for applications with different trust models, while keeping token claims and session behaviour consistent. They also handle identity brokering, user federation and custom authentication flows.
Applications and delivery
Keycloak specialists connect identity services to the systems a company already runs:
- Secure single-page applications, mobile apps and backend APIs
- Federate Active Directory or LDAP user directories
- Integrate SaaS tools and enterprise applications through SAML
- Operate Keycloak on Kubernetes or managed cloud infrastructure
Ecosystem and operations
Keycloak work often includes Java, Quarkus, PostgreSQL, containers and Kubernetes. Professionals manage themes, providers, event listeners, certificates, secrets, backups and upgrades. They define deployment automation and observability so authentication remains dependable across development, staging and production environments.
When expertise matters
Companies bring in freelance Keycloak expertise when a new product needs secure login, when several applications need one sign-on experience, or when an existing identity setup has become difficult to govern. In Cologne, specialists may support local teams on site, remotely or in a hybrid model, with clear communication in English or German where needed.
What strong specialists deliver
A capable professional starts with application flows, user groups, compliance needs and operational constraints rather than applying a default configuration. They document realm settings, test token claims and failure paths, secure administrative access and plan migrations carefully. They can explain trade-offs between Keycloak, a cloud identity service and an existing corporate directory in practical terms.
Frequently asked questions
Need clarity? These are the questions we hear most often about Keycloak.
Keycloak provides central authentication and authorisation for applications, APIs and services. Companies use it for single sign-on, social login, multifactor authentication, user federation and access policies without implementing every identity feature themselves.
Keycloak offers an open-source, self-hosted identity layer with broad control over data, configuration and extensions. Auth0, Okta and Microsoft Entra ID can reduce operational ownership through managed services, so the right choice depends on governance, integration needs, hosting preferences and internal capability.
Keycloak work benefits from knowledge of OpenID Connect, OAuth 2.0, SAML, LDAP and Active Directory. Strong specialists also understand Java or Quarkus, REST APIs, reverse proxies, PostgreSQL, containers, Kubernetes, certificates and secure deployment practices.
Keycloak can be configured quickly for a straightforward application, but complex federation, migrations and production operations require deeper expertise. Look for a professional who has handled realm design, token mapping, custom flows, upgrades, backup procedures and incident troubleshooting in comparable environments.
Keycloak projects are well suited to remote collaboration because configuration, documentation and testing can be managed through shared repositories and environments. For teams in Cologne, hybrid or on-site workshops can still help with application discovery, directory integration and decisions involving security or compliance stakeholders.
Keycloak quality is best assessed through concrete deliverables rather than familiarity with the product name alone. Ask how the specialist would model realms, protect administrative access, test authentication failures, manage secrets and document a repeatable deployment.
Keycloak can federate users from LDAP or Active Directory and can also broker authentication to external identity providers. A specialist should clarify which system remains authoritative, how groups and roles map, whether users need synchronisation, and how account deactivation is enforced.
Red Hat SSO was Red Hat's supported distribution based on Keycloak, while current Red Hat offerings have evolved around supported builds and services for enterprise use. A professional should identify the exact product and support requirements before planning configuration, migration, or upgrade work.
The average hourly rate of freelancers in Cologne, Germany who have used Keycloak in their recent projects is 98 €, which corresponds to a daily rate of about 786 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Keycloak in their recent projects, 100% hold at least a Bachelor's degree, 100% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Cologne, Germany who have used Keycloak in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 1.2 years.
The most common languages among freelancers in Cologne, Germany who have used Keycloak in their recent projects are German (100%), English (100%), and French (43%).
The most common industries among freelancers in Cologne, Germany who have used Keycloak in their recent projects are Automotive (86%), Information Technology (86%), and Banking and Finance (71%).
The most common business areas among freelancers in Cologne, Germany who have used Keycloak in their recent projects are Information Technology (100%), Product Development (86%), and Quality Assurance (86%).
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.
Request a free demo
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