Arquillian Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Arquillian
Sabahattin Kunas
Last position:
Sole responsibility (concept, development, infrastructure, operations) at Own project busik.ch
- Ride-sharing and bus platform, live and working. Backend Spring Boot 4.1 on Java 21, PostgreSQL with Flyway, Testcontainers integration tests. Running in my own AWS account (ECS Fargate, ALB, ECR, IAM least privilege) with CI/CD via GitHub Actions and OIDC federation without static credentials. Development throughout AI-assisted with Claude Code, including my own skills and project-specific memory. Spring Boot · Java 21 · PostgreSQL · Flyway · Docker · AWS ECS/ALB/ECR · CI/CD · GitHub Actions · Claude Code
Rainer Langbehn
Last position:
Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse
Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
As-is analysis
Evaluation of Redgate Flyway functionality
Concept creation
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Skills: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases
Ingo Dettling
Last position:
Analytics at BaFin - Federal Financial Supervisory Authority Frankfurt
- Introduction of methods for developing and automated deployment of cloud-native software and machine learning applications in OpenShift clusters
- Development of various programs in Python
- Technologies: Kubernetes, OpenShift, Kustomize, ArgoCD, Tekton, Docker, PodMan, Airflow, IntelliJ, PyCharm, Git, Bitbucket, Jira, Confluence, Python
Marius Toader
Last position:
Senior IT Project and Process Manager at Sunnic Lighthouse GmbH
Thorough process analysis to identify weaknesses and assess optimization potential
Precise modeling of business processes using BPMN 2.0
Creation of detailed requirements and functional specifications to document use cases
Comprehensive gathering of existing company processes
In-depth process analyses to uncover potentials
Moderation and facilitation of workshops with subject matter experts and executives
Taking on project management for selecting and implementing a new ETRM system environment
Mani Yazdi
Last position:
Full-Stack Developer at Continentale Krankenversicherung a. G.
- Set up the new digitization strategy.
- Using Camunda as a process engine, a new way of handling batch and dialog tasks is created.
- In close cooperation with the business department, the individual processes are created and put into production.
- Forms for controlling manual interventions, e.g. when adjusting applications, are implemented.
- Gradual migration of old code from IBM WebSphere to JBoss.
- Skills: Arquillian, Camunda, Initiative, Empathy, Hibernate, Jackson, Java/JEE, JBoss, Jersey, JSON, JUnit, Openness to criticism, Willingness to learn, REST, Teamwork, WebServices.
Michael König
Last position:
Atruvia AG
- Further development of framework components and services in the Enterprise Banking Control Platform (EGP Framework), a set of cross-cutting libraries and services for all bounded context scopes of the platform.
- Migration from Java 17 to Java 21 and from Spring Boot 3.2 to 3.4 in about 80 library and service repositories (updating Maven POMs, Dockerfiles, Jenkins pipelines, source code migration, test updates).
- Writing unit and integration tests with JUnit and JGiven.
- Performing and analyzing performance measurements with Dynatrace.
- Enhancing multi-stage CI/CD pipelines (unit tests, security analyses, Docker builds, Harbor deployments, ...).
- Tech stack used: Java (90%), Python (10%), Spring Boot, JPA/Hibernate, JGiven, OpenAPI, Camunda 7, Podman, OpenShift/Kubernetes, Oracle DB, SonarQube, Dynatrace, Jenkins, Harbor, Bitbucket, Jira, Confluence.
Martin Zander
Last position:
Consulting, Design and Development at ivv GmbH
- Design, development and maintenance of a web application as a policy management system based on a JEE backend and a Vaadin-based UI
- Design and development of interfaces
- Integration of databases
- Design and development of unit and integration tests
- Conceptual coordination with the client
- Technologies and methods: JEE, Vaadin, EJB, Innovator, Hibernate, REST, JMS, SQL, MQ, Maven, Selenium, Arquillian, Mockito, JUnit, Log4j, OOA, OOD, Scrum, Kanban, JavaScript, HTML, CSS, Jenkins, Jenkins Pipelines, Git, GitLab, Subversion, Jira, Confluence, DB2, WebLogic
Thomas Ramm
Last position:
Architect, Developer at Oberlandesgericht Stuttgart – IuK FZ Justiz
Backend development including architecture
Creating a documentation platform
Training employees in Java/Git/Container
Exploring new technologies
Tools: IntelliJ
Tools: Git
Languages and technologies: Java 21
Languages and technologies: Spring Boot 3.4
Languages and technologies: Oracle DB
Languages and technologies: Websockets/REST
Languages and technologies: JSON
Languages and technologies: Liquibase
Languages and technologies: Keycloak
Languages and technologies: OAuth2
Languages and technologies: Docker/Podman
Languages and technologies: OpenShift
Languages and technologies: Micrometer/OpenTelemetry
Languages and technologies: Grafana Loki
Languages and technologies: Grafana Mimir
Languages and technologies: Grafana Tempo
Languages and technologies: Grafana dashboards
Languages and technologies: Vue.js 3
Radovan Reclo
Last position:
Development and Technical Architecture at HDI
Web application for contract changes
Micro-frontend development from scratch to production with reactive forms foundation, responsive web design, validation, multilingual support, accessibility, unit tests and component tests
Technologies: Angular 19-20, Nx, Angular CLI, Native Federation, TypeScript, HTML, SASS, Tailwind CSS, Angular Material, Reactive Forms, RxJS, Signals, PDF-Make, ng-openapi-gen, i18n, JSON Server, REST, JWT, Jest, Playwright, IntelliJ, Git, CI/CD with GitLab, Cloud Foundry, Nginx; Scrum
Claus Kerpen
Last position:
Developer, Architect at Freelance Developer
Discover over 15,000 top freelancers
Statistics of experts using Arquillian
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.6 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Government and Administration
Certification focus areas
Information Technology, Project Management, Operations
Bachelor's degree or higher
100%
Master's degree or higher
57%
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany 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 Germany using Arquillian
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Container testing
Arquillian is a testing framework for Java applications that need to run inside a real container. It is used for integration tests, deployment checks, and end-to-end validation of Java EE and Jakarta EE components. Teams bring it in when unit tests are not enough and behavior must be verified where the code actually runs.
Typical use cases
- Validate CDI, JPA, JAX-RS, and EJB behavior in the target runtime
- Test application archives before release
- Verify security, transactions, and persistence wiring
- Run repeatable integration checks in CI pipelines
Arquillian helps when a team needs confidence in application packaging, deployment descriptors, and container-specific behavior.
Ecosystem and tooling
Strong specialists know the Arquillian ecosystem, not just the core API. They work with ShrinkWrap to build test archives, test containers for local or managed runtimes, and adapters that connect the test suite to WildFly, TomEE, GlassFish, or other environments. Many projects also use JUnit or TestNG around it.
When freelance help matters
Companies usually look for Arquillian expertise when tests are flaky, deployments fail only in the container, or legacy Java EE code is hard to cover. It also helps during migrations from JBoss Arquillian setups to newer Jakarta EE releases. In Germany, this is common in regulated or long-lived enterprise systems where stable releases matter.
What strong experts deliver
A strong Arquillian professional writes tests that are readable, isolated, and close to production behavior. They know how to package minimal test archives, manage test lifecycle hooks, and keep containers predictable in CI. They also spot when a problem belongs in the test design, the runtime setup, or the application code itself.
Working with your team
Arquillian work often sits between platform, backend, and quality roles, so clear communication matters. Remote collaboration works well for most test design and troubleshooting, while on-site time can help with local container setup or older enterprise environments. For teams in Germany, English is often enough, but German can help when the broader delivery group prefers it.
Frequently asked questions
Before you brief your next project: the most common questions about Arquillian.
Arquillian is used to test Java applications inside a real container instead of only mocking the environment. That makes it useful for integration tests around CDI, JPA, JAX-RS, EJB, and deployment packaging. Teams choose it when container behavior needs to be verified before release.
Arquillian covers a different layer than JUnit and Mockito. JUnit and Mockito are great for fast unit tests, but they do not prove that your application behaves correctly in the target runtime. Arquillian is better when the container, deployment archive, or enterprise wiring is part of the risk.
A company should bring in a Arquillian specialist when integration tests are unstable, deployment issues only appear in the container, or a Java EE or Jakarta EE system needs better coverage. It is also useful during migration work, especially when older test setups need to be cleaned up. If the team lacks experience with ShrinkWrap or container adapters, outside help saves time.
A strong Arquillian professional usually also knows JUnit or TestNG, ShrinkWrap, Maven or Gradle, and the target application server. Java EE and Jakarta EE APIs matter too, especially CDI, JPA, and JAX-RS. Debugging deployment descriptors and CI pipelines is often part of the job.
Yes, Arquillian remains relevant for projects that need container-based testing in Jakarta EE environments. Many teams still have business-critical systems where this style of testing is the clearest way to validate real runtime behavior. It is especially useful when the application server is part of the contract.
A good Arquillian freelancer should have hands-on experience writing tests, packaging deployment archives, and fixing container-specific failures. They should understand the difference between a test that is technically green and a test that actually protects the release. Strong candidates can explain how they kept tests stable in CI.
Most Arquillian work can be done remotely because test code, build files, and container setup are easy to share. On-site collaboration can help if the project uses older infrastructure, restricted environments, or complex local server setups. For teams in Germany, remote work is common, but alignment on language and release process still matters.
Look for a Arquillian expert who talks about test intent, runtime behavior, and maintainability instead of only naming tools. Good answers mention ShrinkWrap, container adapters, and how to keep tests small and reliable. If they can explain past troubleshooting steps clearly, that is a strong sign.
The average hourly rate of freelancers in Germany who have used Arquillian in their recent projects is 100 €, which corresponds to a daily rate of about 802 € based on an 8-hour working day.
Of the freelancers in Germany who have used Arquillian in their recent projects, 100% hold at least a Bachelor's degree and 57% hold at least a Master's degree.
On average, freelancers in Germany who have used Arquillian in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Germany who have used Arquillian in their recent projects are German (100%), English (100%), and Spanish (10%).
The most common industries among freelancers in Germany who have used Arquillian in their recent projects are Information Technology (100%), Banking and Finance (70%), and Government and Administration (70%).
The most common business areas among freelancers in Germany who have used Arquillian in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (80%).
Main locations of FRATCH Experts, who have recently used Arquillian
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 Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
