Keycloak Experts in Cologne
matched in minutes from over 15,000 CVs with the power of AIHire experts who secure applications with OpenID Connect and OAuth 2.0, integrate identity providers, and tailor Keycloak realms, themes and access policies. FRATCH matches you quickly with vetted, available freelancers suited to your project.
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
Sara S.
Last position:
Senior Software Developer with a Focus on UI/UX at vGen GmbH
Development of an interactive prototype for the concept of an AI-supported Enterprise Architecture Management tool. The goal was to present complex relationships between IT systems, business processes, and departments in a way that is easy to understand and to support decision-making in the context of IT transformations.
The prototype combined data-driven analyses with guided questions and interactive visualizations. A central part was the integration of a RAG process to provide domain-specific EAM knowledge in context. The focus was on quick idea validation, user-centered interaction design, and the technical feasibility of a scalable overall concept.
Design, implementation, and validation of a RAG process for domain-specific EAM knowledge with Python, LangChain, and graph/vector databases (Neo4J, Milvus)
Business and technical requirements analysis as well as definition of an MVP
Development of the architecture and technology concept using Angular, Spring Boot, GraphQL, and Kubernetes
Design of an interaction concept and creation of a brand style guide with Figma
Development of interactive prototypes with Angular, Konva.js, and TypeScript
Integration of CI/CD processes with GitLab CI/CD
Discover over 15,000 top freelancers
Statistics of experts using Keycloak
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.3 years (Germany: 1.7 years)
Positions per freelancer
23 (Germany: 14)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
100% (Germany: 87%)
Master's degree or higher
100% (Germany: 54%)
Doctorate
14% (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 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge 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 19 Sep 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.
- Information Technology (88%)
- Automotive (75%)
- Banking and Finance (63%)
- Healthcare (63%)
- Government and Administration (63%)
- Telecommunication (63%)
- Aerospace and Defense (50%)
- Transportation (50%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity platform
Keycloak is an open-source identity and access management platform for applications, APIs and services. It provides single sign-on, user registration, account management, federation and fine-grained access control through standard protocols such as OpenID Connect, OAuth 2.0 and SAML.
Applications and access
Companies use Keycloak to centralize authentication across web applications, mobile clients, internal tools and service-oriented systems. It can protect APIs, connect users to several applications with one account, and apply role-based or group-based permissions without rebuilding identity features in every product.
Ecosystem and integration
Keycloak runs with Java and Quarkus-based distributions and fits common container, Kubernetes and cloud environments. Strong specialists work with identity providers, LDAP and Active Directory, databases, reverse proxies, secrets management, REST APIs and client libraries. They also understand token claims, scopes, sessions and certificate handling.
Typical project work
- Design realms, clients, roles, groups and authentication flows
- Connect enterprise directories, social identity providers and SAML services
- Secure REST APIs and service-to-service communication
- Customize login themes, user journeys and account interfaces
- Automate configuration across development and production environments
When to bring in expertise
Freelance expertise helps when an existing login setup must be consolidated, an application is moving from custom authentication, or a directory integration has become difficult to maintain. Cologne companies in manufacturing, media, logistics and software can also use specialists to align identity work across local teams and remote delivery. Good support covers architecture, migration, testing and operational handover.
What strong specialists deliver
Experienced professionals explain identity decisions clearly and keep security requirements visible throughout the project. They design least-privilege access, validate redirect and token settings, plan upgrades, and document recovery paths. They also test federation failures, session behavior and logout flows instead of treating a successful login as the whole solution. Look for practical experience with the surrounding application stack and confident collaboration in English or German.
Frequently asked questions
Need clarity? These are the questions we hear most often about Keycloak.
Keycloak is used to add centralized authentication and authorization to applications, APIs and services. It supports single sign-on, user self-service, identity federation, multi-factor authentication and access policies through standard protocols.
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 hosting preferences, integration needs, governance and available internal expertise.
A strong Keycloak freelancer should understand OpenID Connect, OAuth 2.0, SAML, JWTs, LDAP and Active Directory. Useful adjacent skills include Java, Quarkus, REST APIs, Kubernetes, cloud security, reverse proxies and CI/CD automation.
A Keycloak specialist should have practical experience with the type of identity flow your project needs, not only basic login configuration. Relevant work may include realm design, directory federation, migration from custom authentication, API protection, custom extensions or production operations.
Keycloak work is often suitable for remote collaboration because configuration, testing and documentation can be managed through shared repositories and environments. On-site sessions in Cologne can still help with workshops, security reviews or coordination across teams, while language expectations should be agreed early.
Keycloak can replace or consolidate many custom authentication services, but migration needs careful planning. A specialist should map users, roles, claims, sessions, password handling, integrations and application changes before switching traffic.
A Keycloak freelancer can configure realms, clients, identity providers, authentication flows, roles, groups and themes. When configuration is not enough, they may use custom providers, event listeners or extensions, while keeping upgrades and operational ownership in mind.
Ask a Keycloak specialist to explain token validation, trust boundaries, redirect URI protection, key rotation, logout behavior and failure recovery in terms your team can verify. Quality is also visible in clear configuration management, security testing, concise documentation and a migration plan that includes rollback options.
The average hourly rate of freelancers in Cologne, Germany who have used Keycloak in their recent projects is 94 €, which corresponds to a daily rate of about 754 € 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 14% hold a doctorate.
On average, freelancers in Cologne, Germany who have used Keycloak in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.3 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 (38%).
The most common industries among freelancers in Cologne, Germany who have used Keycloak in their recent projects are Information Technology (88%), Automotive (75%), and Banking and Finance (63%).
The most common business areas among freelancers in Cologne, Germany who have used Keycloak in their recent projects are Information Technology (100%), Product Development (88%), and Quality Assurance (88%).
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 
Frankfurt 
Stuttgart 
Dusseldorf Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
