Keycloak Experts in Hamburg
for secure identity systems, matched in minutes with vetted freelancersHire experts who secure applications with Keycloak, integrate OpenID Connect and SAML, and manage realms, identity providers and user federation. FRATCH connects you with precise matches from vetted, available freelancers quickly.
Meet FRATCH Experts in Hamburg, who have recently used Keycloak
Felix O.
Last position:
Cloud Engineer at GUS Group
Cloud Journey Kickoff on STACKIT
- Helped the client kickstart their cloud journey on sovereign EU STACKIT platform.
- Bootstrapped IAC & GitOps architecture with Opentofu and ArgoCD.
- Setup platform fundamentals for a fresh, holistic cloud experience: Kubernetes, external secrets, certificate management, gateway API, DNS & routing, observability basics.
Florian W.
Last position:
Software Engineer at micimo GmbH
- Developing a professional appointment planner for organizations with specific, detailed requirements
- Evaluating various existing software solutions
- Creating a list of technical requirements
- Implementing these requirements
- Technologies under consideration: WebDAV, CalDAV, Rust, Baikal, OAuth, Keycloak
Daniel S.
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Rutger B.
Last position:
Partner & Managing Director at AI.IMPACT
- Building an AI & Data Consultancy Practice with the goal of helping European companies adopt Artificial Intelligence and modern data platforms
- End-to-end further development of a production system using modified coding agents (OpenCode). Tech stack: Kubernetes, Argo, Keycloak, Typescript, Grafana, GitOps, DevOps, Playwright
- Internal research project on the use of coding agents in the field of mathematical logic for creating formal models. Use of Cursor IDE and Codex, Codex CLI. Architecture design, quality control and refactoring, as well as writing code and tests. Repository (open source) available pre-launch
- Research on the role of mathematical logic as a formal language that connects IT and AI with business processes
- Project lead for collecting and deploying parking recommendations for rail vehicles with significant savings potential based on real-time data in a mobility and transport company
- Project lead for collecting and distributing process measurement points for real-time control in a mobility and transport company
- Deputy application owner for an app used for communication in the dispatching and provision of rail vehicles
Cornelius H.
Last position:
Solution Architect at STIHL
- Remodeling of the system architecture for an Azure-based platform aimed at rapid development of new functionalities
- Modeling of a staging concept for the fulfillment of diverse customer and QA needs
- Creation of requirements for, and oversight of, a proof-of-concept supplier project for a Flutter app with highly advanced BLE functionalities
- Comparison of multiple observability platforms for feasibility and requirements fit within the project environment
- Creation of a mobile app architecture based on domain-driven architecture
- Position of technical advisor and accountable solution architect for two development teams
- Execution of architecture reviews and alignment of changes with architectural expectations
- Skills & Technologies: Microsoft Azure , App Services, NodeJS Mono-repository, microservice architecture, domain driven design, self contained systems, requirements engineering, CI/CD, DevOps, API design, solution architecture
Andreas S.
Last position:
Solution Architect, Business Analyst, Consultant, Full-Stack Lead-Developer at 50Hertz Transmission GmbH
- Solution for micro-service and frontend solution for the electric grid
- Leading of development teams
- Technologies: React-Native, TypeScript, Kotlin, AWS, Infrastructure As Code, Serverless Architecture, React, NoSQL, GraphQL, Angular, Playwright, Python, ML(Ops), Kubernetes, Docker
Oliver L.
Last position:
Developer, Architect at libri GmbH
- Role: Developer, Architect
- Technologies: java, typescript, golang, spring (boot, web, security, data), Angular, AWS (OpenSearch, Aurora, SNS/SQS, CloudWatch, EC2, IAM), Kubernetes, Terraform, Helm, OAuth, Keycloak, CI/CD, gradlew, Liquibase, Test Driven Development, shell scripting
Marcel S.
Last position:
Lead Developer / Software Architect at Rezeptprüfstelle Duderstadt GmbH
Responsible for the new development of billing and auditing software for prescriptions (prescriptions) to fully check and evaluate e-prescriptions for correctness (content, billing)
The system consists of several contexts that run as services (Docker containers):
Checking and processing data deliveries via FTP and email
Managing invoices, clearings, advance payments and deductions
Managing and running audit rules and audit folders
Evaluations based on Metabase
Developer Stack: Kotlin, Vue 3 / Vuetify 3, ANTLR, Spring Boot 3, REST API, Gradle, Docker, GitLab, PostgreSQL, Kafka, Keycloak, Scrum, Grafana, Loki, Testcontainers, Prometheus
Mark P.
Last position:
Full-Stack Software Developer, Product Data Import at Otto (GmbH & Co KG)
- Manage and operate the product data import services for the Otto merchant
- Enhance and maintain the backend systems
- Optimize and maintain AWS infrastructure
- Build a new product data import API
- Design and plan stories and features
- Conduct code reviews to ensure code quality and best practices
- Analyze and fix bugs
- Technologies: Java, Spring Boot, Kafka, AWS, Fargate, Terraform, MongoDB, Mongo Atlas, OpenAPI, GitHub, GitHub Actions, GitHub Copilot, Akhq, Debezium, JUnit, Test Containers, Hexagonal Architecture
Johannes E.
Last position:
Libri GmbH
- Operation and further development of the inventory system for booksellers (Quimus). It is an in-house development by Libri that is sold to customers as Software as a Service. The software is developed in an agile way by two developer teams (about 5 developers each). The software consists of around 25 Java microservices that mainly communicate via messaging and share a common Angular frontend. The application runs on Kubernetes in AWS.
- Technologies used: Java 17 & 21, Spring Boot 2 & 3, Hibernate, MySQL, Spring Cloud AWS, Lombok, AWS SQS, AWS SNS, AWS RDS, AWS S3, DynamoDB, Kubernetes, Docker, OpenSearch, Hibernate Search, Liquibase, Gradle, Terraform, Helm, GitLab CI, Keycloak OAuth2, TypeScript, Angular
- My focus until December 2023: Connecting additional POS systems to the inventory system. Connecting the data warehouse for report display. Extending existing features (goods receipts, invoicing, item management, ...). Operations and DevOps tasks.
- Focus from January 2024: Extracting the product search from the inventory system into a global service to use in other applications. Integrating the product search into the booksellers' online shops (also run by Libri). Importing and providing digital items in the product search.
Discover over 15,000 top freelancers
Statistics of experts using Keycloak
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.9 years (Germany: 1.7 years)
Positions per freelancer
11 (Germany: 14)
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Retail, Professional Services
Certification focus areas
Information Technology, Human Resources, Product Development
Bachelor's degree or higher
78% (Germany: 88%)
Master's degree or higher
33% (Germany: 55%)
Doctorate
11% (Germany: 10%)
Certifications per freelancer
1 (Germany: 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 Hamburg 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 Hamburg 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.
- Information Technology (100%)
- Retail (60%)
- Professional Services (50%)
- Energy (40%)
- Transportation (40%)
- Manufacturing (40%)
- Automotive (30%)
- Banking and Finance (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity and access
Keycloak is an open-source identity and access management solution for applications, APIs and services. It provides single sign-on, user registration, multi-factor authentication, account management and central policy control. Teams can use it to avoid building authentication flows from scratch.
Core capabilities
Keycloak organizes users, clients and permissions inside realms. It supports OpenID Connect, OAuth 2.0 and SAML, with customizable login themes, roles, groups and fine-grained authorization. Experts often connect it to LDAP or Active Directory and configure identity brokering for external providers.
Ecosystem and tooling
Keycloak runs well in containerized and cloud-native environments and integrates with common Java, JavaScript and API stacks. Relevant skills include Kubernetes, Docker, reverse proxies, TLS, PostgreSQL, observability and automated delivery pipelines. Strong specialists also understand token validation and secure session handling.
Where companies use it
- Centralized login for web applications and internal tools
- Customer identity and access management for digital services
- Secure API access across microservices and partner systems
- Single sign-on across enterprise applications
- Migration from custom authentication or legacy identity solutions
When freelance expertise helps
Companies bring in freelance specialists when an identity rollout must integrate with existing directories, applications or partner environments. They also help during migrations, security reviews, production incidents and large configuration changes. In Hamburg, remote collaboration can work well for planning and implementation, while on-site workshops may help teams align across product, security and operations.
What strong specialists deliver
A strong Keycloak professional designs clear realm and client structures, documents security decisions and tests failure paths. They know when to use roles, groups, scopes or external policy services instead of adding unnecessary complexity. Look for hands-on work with upgrades, backup and recovery, monitoring, high availability and consent-aware data handling. German and English communication can support collaboration with local teams and international stakeholders.
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 web applications, mobile services, APIs and internal systems. It provides single sign-on, identity brokering, user federation, multi-factor authentication and configurable access policies without requiring each application to implement them independently.
Keycloak is self-hosted and open source, giving companies direct control over deployment, configuration and identity data. Auth0, Okta and Microsoft Entra ID are managed services that can reduce operational work, so the right choice depends on hosting requirements, directory integrations, customization needs and the team’s ability to operate identity infrastructure.
A strong Keycloak specialist should understand OpenID Connect, OAuth 2.0, SAML, JWT validation and secure session management. Experience with Kubernetes, Docker, reverse proxies, LDAP or Active Directory, databases, monitoring and CI/CD is useful when the service must run reliably in production.
The needed experience depends on the scope. A simple application integration may need focused configuration skills, while identity migrations, custom providers, multi-tenant realms or high-availability deployments call for a professional who has operated Keycloak in comparable production environments.
Keycloak projects are often suitable for remote collaboration because configuration, documentation, testing and reviews can be handled online. Hamburg-based teams may still prefer on-site workshops for architecture decisions, directory integration or security handovers, especially when several internal groups share responsibility.
Ask the Keycloak freelancer to explain realm design, client settings, token flows, user federation and recovery procedures in practical terms. Review examples of secure configuration, upgrade planning, automated tests, monitoring and documentation rather than judging quality only by a successful initial login.
In many cases, Keycloak can replace custom login and account flows while giving teams established standards and administration features. A careful assessment is still needed for bespoke authorization rules, legacy protocols, unusual tenant models and application behavior that may require adapters or complementary services.
Freelancers working with Keycloak may integrate applications and APIs, configure identity providers, connect LDAP directories, create login themes or build custom extensions. They may also handle migrations, security hardening, performance checks, Kubernetes deployment, upgrades and operational documentation.
The average hourly rate of freelancers in Hamburg, Germany who have used Keycloak in their recent projects is 114 €, which corresponds to a daily rate of about 910 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Keycloak in their recent projects, 78% hold at least a Bachelor's degree, 33% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Keycloak in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Hamburg, Germany who have used Keycloak in their recent projects are German (100%), English (100%), and French (20%).
The most common industries among freelancers in Hamburg, Germany who have used Keycloak in their recent projects are Information Technology (100%), Retail (60%), and Professional Services (50%).
The most common business areas among freelancers in Hamburg, Germany who have used Keycloak in their recent projects are Information Technology (100%), Product Development (100%), and Operations (60%).
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 
Munich 
Cologne 
Frankfurt 
Stuttgart Request a free demo
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Philipp Thomaschewski
FRATCH CEO
