TestNG Experts in Germany
for reliable test automation, matched in minutes with vetted and available freelancersHire experts who design TestNG test suites, integrate Selenium and REST Assured, and improve CI pipelines for Java applications. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Germany, who have recently used TestNG
Marcus B.
Last position:
Java and Quarkus Expert at Large German energy service provider
- Modernization of a large-scale Java enterprise application*
The project is modernizing a complex enterprise application that has grown over many years. The existing Spring-based legacy system runs on Java 8, OSGi, and Eclipse RCP and is being gradually migrated to a modern, maintainable architecture with Java 25 and Quarkus.
Marcus works on analysis, architecture, refactoring, and implementation. One focus is on untangling historically grown structures and dependencies and on building a clean, sustainable Java and Quarkus technology stack.
Tools & technologies: Java 8, Java 25, Quarkus, Hibernate ORM with Panache, EclipseLink, OSGi, Eclipse RCP, Maven, JUnit, Mockito, REST, JSON, Git, Eclipse IDE, IntelliJ IDEA Ultimate, Jira, Confluence
Osman T.
Last position:
Senior Architect, DevOps Engineer at genPsoft GmbH
IT consulting, analysis, architecture design, new and further development, code review, test automation, continuous integration, continuous delivery in backend and frontend areas for Automotive Project Instavalo.
Frontend:
- Implementation of UI components according to specifications, especially style guides and responsive design eith React and Typescript
- Component testing
- Code documentation
- CI/CD with Gitlab Pipeline
Backend / IoT:
- Analysis and architectural design with AWS Greengrass IoT on Edge Devices
- Setting up Microservices containers with Docker Compose on Edge device with AWS Greengrass and AWS IoT IAM, Token Exchange Service, Ansible
- CI/CD with Gitlab Pipeline, Terraform, AWS ECR
- Logging with Fluentbit Lua Language for AWS Cloudwatch
- Python Lambda for AWS Greengrass Recipe deployment on Edge Devices
- Implementation of test-driven development with JUnit, Mockito, and code Coverage
- Jacoco
- Definition of REST interfaces with OpenAPI / Swagger
- Development and enhancement of software based on Java Quarkus, Typescript NestJs NodeJs and Python
- Authentication and authorization in Aws IAM
- Development of REST and gRPC interfaces for the frontend and backend
- Implementation of Maven dependencies with DevSecOps OWASP
- Spring AI, Jetbrains AI Assistant, Junie, Github Copilot, Claude Code, Agents, Skills, Command, Hooks, Subagents
Christoph S.
Last position:
Test Manager at Logistics
- Coordination and planning, execution, documentation, and analysis of test cases
- Development of test concepts considering best practices (e.g., test pyramid) with a focus on reliable, automatable test runs
- Implementation and maintenance of test cases according to the test concepts
- Technologies: Citrix Workspace, Shopify, Jira, Xray, MS Teams, MS SharePoint, Confluence, MS Office 365
Hassan A.
Last position:
DevOps & Observability Consultant at ALDI South (Albrecht's Discount)
- Supporting the DevOps team in Terraform-managed, multi-region AWS infrastructure to achieve environment parity.
- Developed end-to-end CI/CD pipelines using AWS CodePipeline, CodeBuild, and CodeDeploy, automating the build and deployment.
- Maintained pre- and post-deployment scripts to automate critical tasks such as database schema migrations and environment sanity checks.
- Implemented CI/CD flow specifically for hotfixes via separate Git branches, managing back-merge activities from feature branches to release branches to ensure code integrity through automated conflict resolution.
- Deployed a dedicated, lightweight sanity check application hosted cost-effectively on Azure Container Apps to run automated health and basic functional checks as a post-deployment activity triggered via pipeline.
- Investigated production incidents through code changes and AWS CloudWatch logs.
- Coordinated integration of Dynatrace APM and its APIs for monitoring purposes.
- Full stack QA strategist for a high-traffic e-commerce platform built on a layered architecture for the back-end testing of core platform services, especially the order management system in Zed and Glue layers.
- Managed automation activities, testing process, and refactoring practices.
- Responsible for framework migrations, setup, and training for new automation frameworks.
- Promoted a shift-left approach within the QA team and created the test concept.
- Participated in meetings with IT managers, business owners, product owners, and team members.
- Designed and implemented contract testing to validate API schema compatibility between the order management system and the Zed and Glue layers, reducing production-relevant breaking changes by approximately 3%.
- Led the migration to a multi-environment framework that enabled test execution across 4 country configurations from a single codebase.
- Integrated automated unit and functional tests directly into the GitLab CI/CD pipeline, reducing pipeline runtime by 32%.
- Coached and trained 5 QA engineers across Germany and Hungary in test automation, framework architecture, and best practices.
- Architected a layered backend test automation framework separating business logic, API request builders, and the database layer.
- Piloted AI-assisted testing with Playwright Agents, the Playwright MCP Server, and GitHub Copilot for automated test generation, execution, and self-healing Playwright scripts.
Muhammad Y.
Last position:
SynQ × AutoStore
- Enterprise WMS customisation for Albert Heijn and EDEKA.
- Owned end-to-end test planning, automation, and performance validation for logistics automation software serving high-volume grocery warehouse operations.
Jens O.
Last position:
Freelance Java Developer / DevOps Engineer at Unpublished defense company
- Extension of OSGi modules in a complex communication solution
- Debugging communication with Wireshark and remotely in the JENS test environment
- Migration of tests from TestNG to JUnit 5 with Mockito and AssertJ
- Updating vulnerable dependencies and improving code quality
- Changes to the Vaadin frontend
- Increasing test coverage
Patrick W.
Last position:
AI Software Engineer at IppenMedia
- Analysis
- Consulting
- Software design
- Development
- Automation
- Testing
- Deployment
- Architecture, development and deployment of various proof-of-concept applications around the integration of current AI interfaces including conversational, realtime voice, images and videos
- Developed best practices for working with agentic systems and AI in practice
- Created code templates
Nikunjkumar P.
Last position:
Senior Java Backend Developer at Questax Professionals GmbH
- Provide the Price Listing Service team with prices for all cars and vans in different markets
- Adapt market-specific requirements such as taxes, government subsidies, campaigns
- Import and synchronize new prices for all new and existing cars and store them in the Redis datastore
- Support our product and on-call duty
- Daily business, development of new features, bug fixing
- Pair programming, code review, mob programming
- Develop POCs for new ideas
- Maintain and extend the backend
- DevOps tasks
- Run Kubernetes updates
- Adjust and further develop Kubernetes resources
- Develop and adapt Helm charts
- Adapt and update ArgoCD
- Maintain, adapt, and improve CI/CD
Robert D.
Last position:
Software Architect at FinTech / Wealth Management
- Analysis of existing microservice structures and integration into the event-driven architecture
- Design and implementation of prototypes
- Introduction of structured workflows and embedding in a solid testing strategy
- Team: small specialized team (3-5 people) from analysis to implementation readiness
- Documentation of architectural decisions and definition of interfaces
- Integration of the event-driven pipeline into the existing landscape
- Technologies: Kafka, Docker, Microservices, Event-Driven Architecture, Java, Liquibase
Marius T.
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
Adem S.
Last position:
IT Consultant (Test Manager) & CEO at Trikolon Consulting GmbH
- Development and implementation of test concepts for complex, multi-layered systems
- Creation of regular management reports and presentations for stakeholders and clients
- Technical and disciplinary leadership of international test teams (coordination, coaching, resource planning)
- Responsibility for quality assurance across multiple test levels (unit, integration, system, and acceptance tests)
- Design of test cases and test plans in Azure DevOps; ensuring traceability and coverage
- Use of BDD approaches (Gherkin/Cucumber) to prepare test automation
- Building a test automation architecture with Playwright and integrating new tests into CI/CD pipelines
- Performing API tests (REST) and tests for mobile/PWA applications
- Setup and maintenance of test environments across multiple stages (integration, QA, UAT, pre-production)
- Test data management (synthetic and production-like data), ensuring consistency and reproducibility
- Collaboration with DevOps teams for containerization (Docker/OpenShift) and CI/CD integration
- Working under SAFe & Scrum, closely coordinating with product owners and DevOps teams
- Active participation in PI plannings, sprint reviews, and retrospectives
- Promoting an agile QA culture through coaching and knowledge sharing
- Introducing scalable test automation with Playwright → significant reduction of manual testing efforts
- Increasing test transparency through clean defect and reporting management in Azure DevOps
- Improved release quality through an end-to-end QA strategy and automated regression tests
- Strategic leadership of Trikolon Consulting GmbH and responsibility for finance, personnel, and business development
Johannes E.
Last position:
E2E Test Manager / Technical Project Lead at Sky Media GmbH
Iterative test planning
Providing test infrastructure
Resource planning
Test design
Coordination of test teams
Defect management
Release management
Project planning
Cohort planning
Test planning
Test execution
Trial test planning
Rollout
Business analysis
Requirements engineering
Change management
E2E test coordination
Anastasiia K.
Last position:
Senior Test Automation Engineer at E.ON
- Reviewing functional and technical requirements from a testing perspective
- Creating test cases and automated tests to validate requirements
- Performing manual and automated functional, end-to-end, and regression tests
- Documenting test results and tracking defects
- Using models like GPT-4, BERT, and Hugging Face Transformers for automated test case generation, analysis of test results, and improving test coverage, including bias checks and security reviews
- Techs: MS Office, Jira, Zephyr, Confluence, Tosca, stakeholder communication, Agile, Kanban, Scrum, OpenAI API, Hugging Face, PyTorch, LangChain.
Igor K.
Last position:
Freelance Software Developer
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
Discover over 15,000 top freelancers
Statistics of experts using TestNG
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
2 years
Positions per freelancer
11
Top business areas
Information Technology, Quality Assurance, Product Development
Top industries
Information Technology, Banking and Finance, Retail
Certification focus areas
Information Technology, Quality Assurance, Project Management
Bachelor's degree or higher
90%
Master's degree or higher
53%
Doctorate
13%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
95%
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 TestNG
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.
TestNG 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 (98%)
- Banking and Finance (60%)
- Retail (50%)
- Automotive (43%)
- Insurance (40%)
- Transportation (38%)
- Government and Administration (36%)
- Professional Services (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
TestNG fundamentals
TestNG is a Java testing framework inspired by JUnit and designed for flexible, maintainable automated tests. It supports annotations, test groups, data providers, dependencies, parameterization and configurable execution. Teams use it to validate unit-level behavior, integration flows and broader application scenarios.
Test suites and execution
TestNG organizes tests through Java annotations and suite files, giving teams control over setup, teardown, ordering and parallel execution. XML suite configuration can select groups, define parameters and coordinate complex test runs. Strong specialists structure suites so failures remain isolated, readable and useful in local development and continuous integration.
- Create reusable fixtures with @BeforeMethod and @AfterMethod
- Group tests by feature, risk or execution stage
- Configure parallel runs and suite-level parameters
- Produce reports for fast failure analysis
Ecosystem and tooling
TestNG commonly works with Maven or Gradle, Selenium WebDriver, REST Assured and AssertJ. Professionals also connect it to Jenkins, GitHub Actions, GitLab CI or other build pipelines, while listeners and reporters extend reporting and test lifecycle behavior. Familiarity with Java, dependency management and version control is essential for dependable automation.
When expertise helps
Companies bring in freelance TestNG specialists when an existing suite is slow, unstable or difficult to extend. They are also useful during Java platform migrations, test automation initiatives, release-critical integrations and the introduction of parallel execution. In Germany, remote collaboration is common, while on-site work can help when testing depends on secure environments, hardware or close coordination with product teams.
- Stabilize flaky Selenium or API tests
- Convert manual regression scenarios into automated coverage
- Refactor large XML suites and shared fixtures
- Connect test results to CI quality gates
Quality signals
Strong TestNG professionals separate test intent from implementation details and choose realistic boundaries between unit, integration and end-to-end coverage. They use clear naming, controlled test data and deterministic setup instead of relying on execution order or hidden state. They also explain failure causes, review reports and leave the suite easier to maintain than they found it.
Choosing the right specialist
Assess how a professional handles test design, Java code quality, dependency management and pipeline execution together. Ask for examples of suite organization, flaky-test diagnosis and reporting improvements rather than looking only at framework familiarity. For distributed teams, confirm written English or German communication, documentation habits and the ability to work safely with the company’s repositories and environments.
Frequently asked questions
What clients ask us most about TestNG — answered in short.
TestNG is used to create and run automated tests for Java applications. It supports unit, integration, API and browser-based testing, with features such as groups, data providers, dependencies, listeners and parallel execution.
TestNG and JUnit 5 both support Java test automation, annotations, parameterized tests and integration with common build tools. TestNG is often selected for suite grouping, flexible dependencies and XML-based execution control, while JUnit 5 is widely preferred for its modern extension model and standardization within newer Java projects.
A strong TestNG specialist usually brings solid Java knowledge plus Maven or Gradle, Git and CI pipeline experience. Selenium WebDriver is useful for browser testing, while REST Assured, SQL and container-based test environments can support API and integration work.
The right TestNG professional depends on the project’s scope rather than the framework alone. A small suite may need focused test design and Java skills, while a large parallel pipeline requires experience with architecture, flaky-test diagnosis, reporting and build optimization.
TestNG is well suited to remote collaboration because suites, reports and pipeline results can be reviewed through shared repositories and CI systems. Teams should agree on documentation, time-zone overlap, secure environment access and whether communication must be in German, English or both.
Ask a TestNG professional to explain how they would structure fixtures, isolate test data and investigate an intermittent failure. Review naming, assertions, reporting, parallel execution choices and the clarity of the proposed maintenance approach.
TestNG does not replace Selenium. TestNG controls test structure, execution and reporting, while Selenium WebDriver interacts with browsers; the two are frequently combined for automated web testing.
Common TestNG problems include shared state between tests, unclear dependencies, unstable waits, oversized suites and parallel execution that exposes data conflicts. Experienced professionals address these issues through isolated fixtures, reliable synchronization, controlled test data and focused reporting.
The average hourly rate of freelancers in Germany who have used TestNG 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 Germany who have used TestNG in their recent projects, 90% hold at least a Bachelor's degree, 53% hold at least a Master's degree, and 13% hold a doctorate.
On average, freelancers in Germany who have used TestNG in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Germany who have used TestNG in their recent projects are German (98%), English (93%), and French (12%).
The most common industries among freelancers in Germany who have used TestNG in their recent projects are Information Technology (98%), Banking and Finance (60%), and Retail (50%).
The most common business areas among freelancers in Germany who have used TestNG in their recent projects are Information Technology (100%), Quality Assurance (83%), and Product Development (76%).
Main locations of FRATCH Experts, who have recently used TestNG
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 
Cologne Request a free demo
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Philipp Thomaschewski
FRATCH CEO
