Karate DSL Experts in Germany
for reliable API and UI testing, matched in minutes with AIHire experts who create API, UI and performance tests with Karate DSL, integrate scenarios into CI/CD pipelines and connect automated checks with reporting and service virtualization. FRATCH matches you quickly with vetted, available freelance specialists who fit your technical needs.
Meet FRATCH Experts in Germany, who have recently used Karate DSL
Christoph T.
Last position:
Backend Software Developer (Java) at German Football Association (DFB) e. V.
- Client: Prime Force Group GmbH
Technologies used: Java 25, Spring Boot 4, MapStruct, JSpecify, PostgreSQL, Redis, Liquibase, REST/OpenAPI, Apache Kafka, Apache Solr, OpenID Connect via IronGate/Keycloak, SAP Customer Data Cloud, JUnit, Testcontainers, Karate, Playwright, GitLab monorepo with CI/CD, Jenkins, JFrog Artifactory, FluxCD, Docker, Kubernetes on Azure, OpenTelemetry, arc42, Jira, Confluence
The Team Management Center is the new central platform of the DFB for planning, managing, and carrying out team activities for the national teams - from squad selection and training camps to communication with players, clubs, and legal guardians. The platform is designed for multi-tenancy for the DFB and regional associations; player, club, and master data are intentionally not copied, but connected at runtime via the DFBnet APIs.
I have been involved in the project continuously since the architecture and concept phase (Sprint 0) and work in a distributed Scrum team in two-week sprints. In addition to implementation, my focus is on architecture alignment, connecting the DFBnet interfaces, as well as code reviews and test automation as quality assurance in the team.
Focus areas:
- Development and implementation of the multi-tenancy concept (tenant model for the DFB and regional associations), including data model, access layer, and Liquibase migrations.
- Design of the person service and the search concept based on Apache Solr.
- Integration of the DFBnet APIs (player, person, and club search, club data), including authentication and synchronous master data synchronization.
- Hardening the integration through resilience patterns: separate read timeouts for each search path, correction of circuit breaker counting, limiting parallel requests, and a club cache to reduce load on the external system.
- Development of self-service endpoints for players (own activities, activity details, games), including an access concept for participants, as well as person documents and file uploads.
- Standardization of API design: OpenAPI annotations, nullability model via a custom ModelConverter, JSpecify migration of the DTOs, and documented API guidelines.
- Build and maintenance of Karate-based API and integration tests, integration tests with Testcontainers, test guidelines, and bug triage from the integration and reference environments.
- Code reviews via merge requests, architecture documentation according to arc42, and architecture decisions (ADRs) in Confluence.
- Automated deployment to the integration and reference environments, analysis of login and OIDC issues in combination with IronGate.
Status: ongoing - as of 08/2026 in Sprint 17, around 940 person hours worked; testable delivery to the integration environment every two weeks.
Leif S.
Last position:
Software Architect at QualityMinds GmbH
- Lead software architect and technical team lead for a new logistics platform for load carrier trade
- Core design of software architecture using arc42 spanning frontend, backend, delivery strategies and cloud native infrastructure with Domain Driven Design and Hexagonal Architecture
- Evaluation of initial business requirements and software development roadmap
- Technical team lead in a Scrum team of 9 people
- Introduced and strengthened AI-assisted (JetBrains AI & GitHub Copilot) and collaborative code development strategies to speed up feature development
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
Srecko S.
Last position:
Test Consultant at PROSEQUM GmbH
- Taking over operational acceptance tests for internal and external applications in a preproduction environment
- End-to-end tests across multiple systems
- Planning and implementation of acceptances based on expected loads and service levels
- Creation of test plans and automated tests
- Monitoring of systems, log analysis and creation of test reports, monitoring charts and acceptance documentation
- Support during rollouts of security and OS patches in preproduction
- Load and performance tests as well as failover/rollback tests
- Testing SOAP/REST APIs with JMeter, Grafana and Kibana
- Batch tests with Bash and log analysis
- Load and performance tests of own applications
- Test automation with JMeter and PyTest
- Maintenance and creation of Bash scripting tests
- Manual system integration tests
Tobias H.
Last position:
Senior Java Web Developer at Deutsche Bahn
- Cloud-based Enterprise Service Bus/middleware development for communication between internal applications using Spring Boot and Apache Camel
- Use of AWS cloud computing technologies (e.g., EKS, EC2, S3)
- Development and configuration of modular base and adapter microservices with Camel DSL routing logic
- Designing interfaces and connecting via JMS (ActiveMQ, WebSphere MQ), REST, and SOAP
- Development of unit and integration tests
- Technical support for clients during requirement gathering
Anicet N.
Last position:
Senior Test Specialist at RWE Supply & Trading
- Created a test strategy for manual testing and test automation
- Automated regression and end-to-end API test cases
- Performed functional testing on the Curvecraft portal
- Documented manual test procedures
- Planned and executed end-to-end and regression tests
- Test case design, test case creation, development of test scenarios
- Analyzed test results, logged defects, and retested fixes
- IT environment: Open API, C#, RestSharp, Azure, Azure DevOps, Visual Studio, NSwag, PostgreSQL, Azure Test Plan
Ioan D.
Last position:
Senior Software Developer at ING
- Tribe Home, Product Area 4 - Customer in Life, Squad Cybertron.
- Analysis, design, development, and testing of new requirements for Optimmo, mortgage financing software.
- Analysis, design, development, and testing of the JEE application MWS kredit-baufi.
- Analysis, design, development, and testing of the Wicket Optimmo application.
- Analysis, design, development, and testing of kredit-baufi batch programs.
- Migration of kredit-baufi batches to RHEL9.
- CiL SCS consumer pacts with Finagle.
- CiL SCS touch point architecture integration.
- Team size: 10.
- Tools / Frameworks: OpenJDK Java 17, Kotlin 1.6.0, Azure, Jenkins, Stash, JEE, GitLab, JIRA, Confluence, git, Spring 6.0, Spring Cloud, Spring Data, Hibernate, JPA, JMS, Kafka, Oracle, PL/SQL, Red Hat Enterprise Linux (RHEL), Maven, REST, JBoss, IntelliJ IDEA, Wicket 9 and 10, Istio.
Andreas C.
Last position:
Agile Tester at EWE AG
- Test management/coordination and defect management for the decentralized feed-in process (Meter2Cash process)
- Test planning and creation of test cases, test execution, and test plans
- Defect pre-analysis and dispatch
Mario E.
Last position:
Developer and Consultant at Freelancer
Discover over 15,000 top freelancers
Statistics of experts using Karate DSL
Aggregated from the professional profiles of matched freelancers.
Experience
25 years
Position duration
1.9 years
Positions per freelancer
19
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Education, Banking and Finance
Certification focus areas
Product Development, Information Technology, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
43%
Doctorate
14%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100%
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 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 Karate DSL
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.
Karate DSL 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%)
- Education (78%)
- Banking and Finance (67%)
- Transportation (67%)
- Automotive (56%)
- Government and Administration (56%)
- Telecommunication (56%)
- Energy (44%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Karate DSL does
Karate DSL is an open-source testing framework for APIs, web interfaces and performance scenarios. Its readable, domain-specific syntax combines request handling, assertions, test data and reporting in one tool. Teams can validate REST, SOAP and GraphQL services without building a large test harness from scratch.
Core testing work
Karate DSL specialists create automated checks for functional behavior, contracts, authentication and end-to-end flows. Typical deliverables include:
- REST, SOAP and GraphQL API scenarios
- Browser tests with the Karate Driver
- Data-driven regression suites
- Performance tests with Gatling integration
- Reusable mocks and service simulations
Ecosystem and tooling
Strong professionals work with feature files, assertions, variables, JSON and XML transformations, JavaScript expressions and Java interoperability. They connect Karate DSL with Maven or Gradle, JUnit, Git-based workflows and CI systems such as Jenkins, GitHub Actions or GitLab CI. Reporting, parallel execution and environment configuration are part of a maintainable setup.
When companies need specialists
Freelance expertise helps when an API portfolio is growing, manual regression is slowing releases or test coverage is difficult to maintain across environments. It is also useful for modernizing brittle Java-based test suites, introducing contract checks or preparing a quality strategy for distributed services. In Germany, specialists may support teams remotely or work on-site where product, security and delivery teams need close coordination.
What strong professionals deliver
A capable Karate DSL professional designs tests around business risks rather than simply increasing scenario volume. They separate reusable setup from business behavior, manage test data safely and make failures easy to diagnose. They also understand HTTP, authentication, asynchronous systems, browser behavior and the limits of test doubles.
How to assess expertise
Review examples of clear feature files, reliable CI execution and useful failure reports. Ask how the specialist handles flaky tests, dynamic tokens, test isolation, parallel runs and changing API contracts. Practical quality shows in stable suites, sensible abstractions and documentation that lets the internal team extend coverage after the engagement.
Frequently asked questions
Need clarity? These are the questions we hear most often about Karate DSL.
Karate DSL is used to automate API, web UI and performance testing in a readable feature-file format. It supports REST, SOAP and GraphQL checks, data-driven scenarios, mocks and CI execution, making it suitable for both service-level and end-to-end validation.
Karate DSL combines HTTP client features, assertions, test data handling and reporting in one framework. REST Assured offers a code-first Java approach, while Cucumber mainly provides a behavior-driven language and usually needs additional tooling for API execution.
Karate DSL work benefits from knowledge of HTTP, JSON, XML, OAuth, OpenID Connect, databases and asynchronous messaging. Familiarity with Java, Maven or Gradle, Git, CI/CD and test reporting helps the specialist integrate suites into an existing delivery process.
The scope matters more than a fixed time period. A simple API regression suite needs solid Karate DSL fundamentals, while a distributed system with authentication, parallel execution, performance checks and complex data flows calls for a specialist who has handled those conditions in production-like environments.
Karate DSL is well suited to remote collaboration because feature files, configuration and pipeline results can be reviewed in shared repositories. Clear documentation, reliable test environments and communication in the team's working language are more important than constant on-site presence, although regulated teams may prefer occasional in-person work in Germany.
Karate DSL can work with Gatling for performance scenarios, allowing teams to reuse suitable API flows while measuring load behavior. A strong specialist still needs to design realistic traffic, data variation, thresholds and environment controls rather than treating functional tests as a complete performance plan.
A high-quality Karate DSL suite has clear scenarios, reusable setup, isolated data and failure messages that point to the real problem. Stable execution in CI, controlled external dependencies, sensible tagging and coverage of important business risks are stronger quality signals than a large number of scripts.
Karate DSL can cover browser journeys through the Karate Driver, especially when API and UI checks should share one test approach. Teams with highly interactive applications or deep browser-specific needs may still combine it with a dedicated browser framework, depending on the scope and maintenance model.
The average hourly rate of freelancers in Germany who have used Karate DSL in their recent projects is 87 €, which corresponds to a daily rate of about 696 € based on an 8-hour working day.
Of the freelancers in Germany who have used Karate DSL in their recent projects, 100% hold at least a Bachelor's degree, 43% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Germany who have used Karate DSL in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Germany who have used Karate DSL in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Germany who have used Karate DSL in their recent projects are Information Technology (100%), Education (78%), and Banking and Finance (67%).
The most common business areas among freelancers in Germany who have used Karate DSL in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (89%).
Main locations of FRATCH Experts, who have recently used Karate DSL
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
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Philipp Thomaschewski
FRATCH CEO
