Apache JMeter Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used Apache JMeter
Hooman Behmanesh
Last position:
Fullstack Developer at Möbel Roller GmbH
- Further development of the existing e-commerce platform based on SAP Commerce (Hybris) to meet the growing demands of digital commerce.
- Ensuring the scalability and performance of the backend, so the platform remained stable and efficient even under heavy user load.
- Development and integration of new OCC REST APIs and services for modular extensions and flexible adjustments, to implement new features quickly.
- Optimization of data flows and interfaces, which significantly improved platform efficiency and system performance.
- Ensuring a maintainable and scalable code base by using Clean Code principles, proven design patterns, and a future-proof architecture.
- Reduction of errors through extensive testing with JUnit, Mockito, and load tests with Gatling, supported by the introduction of automated test processes.
- Improved system performance through targeted refactoring measures and efficient database queries, especially to handle peak loads.
- Use of modern cloud and monitoring tools such as Kubernetes, Google Cloud Platform (GCP), and Grafana to ensure a stable and monitored infrastructure.
- Clear improvement in efficiency, scalability, and reliability of the platform, which now meets the demands of a dynamic and growing e-commerce market.
Stefan Marx
Last position:
Bundesrechtsanwaltskammer
- Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
- Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
- Documentation of test cases, execution steps, and test results.
- Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Ayhan Gezer
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
Predrag Perovic
Last position:
Test Developer | Test Automator at CreditReform
Technologies: Java 25, Selenium, Insomnia, SSO, GitLab, Jenkins, Docker, Kubernetes, Jira, IntelliJ, Nexus, Oracle, MariaDB, Spring Boot, Grafana, Concept Board, Vue.js, OpenAPI, Kotlin. Implementation, maintenance, and extension of automated end-to-end regression tests for UI and API interfaces. Appropriate and targeted test automation across multiple software products, including Java-based Windows applications. Automating business processes with Selenium, reset jobs, and DB import jobs, as well as creating test concepts, test case descriptions, and structured bug reporting.
Vishali Thangalapally
Last position:
Senior Analyst at Accenture
- Facilitated data retrieval for first-assist applications through an interface that fetches content based on client input criteria and loads it into the database via batch processing.
Last position:
Rewe Digital
- Creation of Spring Boot integration tests
- Creation of JUnit tests for the coupon system
- Creation of component tests for Kafka topics
- Creation of CI/CD pipeline scripts
- Creation of UI tests with Playwright
- Creation of UI tests with Cypress
- Review of developer unit tests
- Planning the test architecture for integration tests
- Creation of the test automation concept
- Evaluation and creation of test reports
Miroslav Pavlovic
Last position:
Managing Consultant at ICTT Digital Networks
TSI customer project data center migration (since 2024-07-01)
Inventory of active IT/OT components
Creation and management of the migration concept
Planning and execution of migration tests
Carrying out the IoT migration (network, VPN gateway, firewall adjustments)
Service migrations (mobile services)
Re-design of outdated technologies/services
Integration into operations
Logistics bus project at Daimler Truck and Mercedes Benz (2024-01-01 – 2024-06-30)
Development manager/technical consultant for the logistics bus
Coaching customers/TSI development teams and product owners
Creation/review of architecture designs and documentation
Project planning/customer meetings
Support for migrations from Java/WebSphere/JBoss to Kubernetes
Service design for performance visibility (2022-06-01 – 2023-10-31)
Performance visibility service development, network monitoring service for Telekom internal customers
Planning/integration/expansion of PV monitoring in cloud environments (AWS, Microsoft Azure)
Design/planning/implementation of performance visibility services based on NetScout/Kadiska software in customer environments
Agile project management/execution of PoCs (proof of concepts)
Design/architecture/concept creation
Diagnosis of network issues
Packet capturing/debugging
Preparation of customer and training documentation
Discover over 15,000 top freelancers
Statistics of experts using Apache JMeter
Aggregated from the professional profiles of matched freelancers.
Experience
20 years (Germany: 21 years)
Position duration
2.1 years
Positions per freelancer
17 (Germany: 15)
Top business areas
Information Technology, Quality Assurance, Product Development
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Quality Assurance, Business Intelligence
Bachelor's degree or higher
100% (Germany: 90%)
Master's degree or higher
80% (Germany: 48%)
Certifications per freelancer
7 (Germany: 4)
Most common languages
German, English, Bosnian
Speak two or more languages
100% (Germany: 98%)
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 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 Apache JMeter
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
Load testing basics
Apache JMeter is used to test how systems behave under real traffic. It helps teams check response times, stability, and bottlenecks before launch or during release work. Companies bring in JMeter specialists when they need clear data for web apps, APIs, queues, or mixed integration paths.
What they set up
- Test plans for HTTP, REST, and SOAP endpoints
- Distributed load runs and repeatable test data
- Assertions, timers, and parameterized scenarios
- Reports that show where latency starts
Ecosystem and tools
A strong Apache JMeter professional knows the test plan structure, samplers, listeners, assertions, and thread groups. They often work with CSV data files, property-driven setup, Jenkins, Git, Docker, and monitoring tools so test runs fit into release pipelines. In Cologne, this is common in teams that support larger B2B systems, ecommerce flows, and internal service platforms.
When companies need help
Freelance JMeter experts are useful when a release is risky, a production issue appears under load, or the team lacks clean performance test coverage. They also help when existing tests are slow, hard to maintain, or no longer match current architecture. Good specialists can join remote or on-site work in Cologne and adapt to English or German team setups.
What strong specialists do
- Turn business journeys into realistic load scenarios
- Separate app problems from infrastructure problems
- Keep scripts readable and easy to reuse
- Validate results with logs, metrics, and server traces
Adjacent skills that matter
JMeter work is stronger when it sits next to API design, HTTP knowledge, basic scripting, and system monitoring. For modern stacks, specialists should understand authentication, session handling, caching, and how distributed services affect test results. Apache JMeter is often compared with k6, Gatling, or LoadRunner, but it stands out when teams need flexible scenario design and broad protocol support.
Frequently asked questions
What clients ask us most about Apache JMeter — answered in short.
Apache JMeter is used to test how applications and APIs behave under load. Teams use it to spot slow endpoints, weak scaling points, and unstable releases before users feel the problem. It is common for web, service, and integration testing.
No. JMeter is best known for HTTP testing, but it also supports other protocols and integration paths. That makes it useful for APIs, message-based systems, and more complex enterprise flows.
Apache JMeter is often chosen for its broad protocol support and the way test plans can model many different user paths. k6 and Gatling are popular when teams want code-first scripting or very specific performance workflows. The better choice depends on the stack, the team, and how the results will be maintained.
A strong JMeter specialist should understand HTTP, APIs, test data, authentication, and basic scripting. Knowledge of monitoring, server logs, and CI tools also helps a lot. Without those skills, load results are easy to misread.
For simple test runs, a short engagement may be enough. For release-critical systems, you want someone who has built maintainable Apache JMeter suites, interpreted noisy results, and worked with infrastructure teams. The more complex the system, the more you benefit from proven practice.
Yes. Apache JMeter work is often done remotely because test plans, reports, and review sessions can be shared digitally. On-site time in Cologne can still help when teams need deeper access to local systems, live debugging, or close coordination with stakeholders.
Look for clear test design, realistic user journeys, and results that explain what happened rather than just showing graphs. A good JMeter professional documents assumptions, keeps scripts maintainable, and ties findings back to the system under test. Strong communication matters as much as tool knowledge.
Before joining a Apache JMeter project, a freelancer should understand the target system, traffic patterns, and what the team wants to prove. Access to endpoints, credentials, and monitoring data usually matters more than tool setup. In Cologne, it also helps to know whether collaboration is mainly remote or mixed with on-site workshops.
The average hourly rate of freelancers in Cologne, Germany who have used Apache JMeter in their recent projects is 85 €, which corresponds to a daily rate of about 680 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Apache JMeter in their recent projects, 100% hold at least a Bachelor's degree and 80% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used Apache JMeter in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Cologne, Germany who have used Apache JMeter in their recent projects are German (100%), English (100%), and Bosnian (14%).
The most common industries among freelancers in Cologne, Germany who have used Apache JMeter in their recent projects are Information Technology (100%), Retail (71%), and Banking and Finance (57%).
The most common business areas among freelancers in Cologne, Germany who have used Apache JMeter in their recent projects are Information Technology (100%), Quality Assurance (100%), and Product Development (71%).
Main locations of FRATCH Experts, who have recently used Apache JMeter
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.
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Philipp Thomaschewski
FRATCH CEO
