JProfiler Experts in Germany
for faster Java applications, matched with vetted freelancers in minutesHire experts who diagnose Java performance issues, profile Spring and Jakarta EE applications, and optimize database, thread, and memory behavior. Get fast, precise matching with vetted and available freelancers for remote or on-site work in Germany.
Meet FRATCH Experts in Germany, who have recently used JProfiler
Hooman B.
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.
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
Ulm P.
Last position:
DataStage ETL Expert at ING Bank
- Datastage 11.7, dbt, Oracle 19, Python 3.12 / PySpark 3.5, Azure GitHub, Azure DevOps, Automic
- Development of migration jobs to transfer data from the collection DWH to the new Risk Mart, as well as development of ETL pipelines to migrate historical data from the old Mart to the new Risk Mart.
- Storage of the silver layer on Hadoop and the gold layer in Oracle.
- Translation of DataStage jobs into dbt to publish reporting data in Google Cloud to a PostgreSQL database.
- Creation and optimization of complex SQL queries for data extraction from a data vault, taking into account historical data in the point-in-time tables.
- Creation of Oracle table definitions (DDL) and adjustment of existing stored procedures.
- Versioning changes in GitHub and deployment via the CI/CD portal.
- Refactoring long-running DataStage jobs into Python using PySpark to reduce server load.
- Migration of SAS scripts to PL/SQL, including new development of distribution functions that have no direct equivalent in Oracle.
- Development of Automic jobs to run DataStage pipelines and Python scripts (PySpark jobs) that control the population of the SME and institutional risk tables in the Risk Mart and perform business calculations.
- Participation in the agile process, including creating user stories, estimations, and planning in Azure DevOps.
- Handling Azure DevOps tickets and close collaboration with testers and business teams for error analysis and resolution.
Fabio F.
Last position:
Senior Software Developer Backend/Frontend at Logistikunternehmen Bremerhaven
- Designed and implemented a slot management system for efficient control of truck arrivals and reducing wait times in logistics operations
- Requirements analysis
- Designed and developed a frontend with React
- Backend development with Spring Boot / JPA
- Designed and implemented REST APIs with Spring Boot OpenAPI
- Technologies: Spring Boot, React, Java, JUnit, Mockito, IBM Db2, SQL, Maven, JPA, Docker, Kafka, SOAP, REST, Git, XML, HTML, CSS, JSON, OpenAPI, Stoplight, Jenkins, WebSphere Application Server, Freemarker, IntelliJ
- Methodology: Scrum, Clean Code
- Team size: 5
Dimitri S.
Last position:
Fullstack Developer, Integrator at Generali Deutschland Versicherung AG
- Developing automated build and deployment processes for the exclusive front office systems
- Integrating the front office systems into the IT infrastructure
- Developing innovative, user-friendly sales software for financial advisors
- Ensuring quality and flexibility through automation and working with CI/CD
- Working according to DevOps principles
- Operating the software together as a team in the AWS cloud and Azure cloud
- Deploying software artifacts to testing and production environments
- Maintaining the test environments
- Performing error analysis and providing information for further root cause analysis
- Maintaining and supporting the build pipeline
- Supporting load testing
- Coordinating the batch execution schedule with batch automation
- Creating concepts to further develop the software packaging process
- Building and delivering components to partners
- Developing GitLab and Jenkins pipelines for building, deploying and integrating components
- Automating processes with Spring Boot applications with a GUI (Thymeleaf, Angular 19)
- Developing RESTful Spring Boot applications with Kotlin and Angular 19, JDBC and REST accesses, data exchange via SFTP, XML (JAXB)
- Designing components using Domain-Driven Design (DDD)
- Replacing cmd and bash scripts with Spring Boot applications with a GUI
- Replacing Java 8 applications with JSP by Spring Boot 3 applications (Thymeleaf, Angular)
- Implementing frontend and backend authentication via Keycloak
- Writing JUnit tests with Mockito
- Increasing code coverage for SonarQube analysis
Jan M.
Last position:
Interface project at HR Solutions GmbH for Rhineland-Palatinate / BAMF at HR Solutions GmbH
- Developed an adapter from the central foreigner register to an internal application
- REST, JSON, OpenAPI, Spring Boot, Vue, Java, Maven, XAusländer
- Jira/Confluence/GitHub, Scrum+Kanban
Rashid I.
Last position:
Java Developer at IT company
- Data transformations
- IT company with more than 100 employees
- Software production
- Data augmentation and normalization, image transformation, format conversion, merging data from multiple sources
- Toolset: Java, Helm, Kubernetes, Kafka, OpenCV, IntelliJ IDEA, Gradle, Git, Docker, Containers, Scrum
Discover over 15,000 top freelancers
Statistics of experts using JProfiler
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
1.4 years
Positions per freelancer
19
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Government and Administration
Certification focus areas
Information Technology, Human Resources, Product Development
Bachelor's degree or higher
100%
Master's degree or higher
100%
Doctorate
43%
Certifications per freelancer
3
Most common languages
German, English, Russian
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 JProfiler
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.
JProfiler 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%)
- Healthcare (71%)
- Government and Administration (71%)
- Automotive (57%)
- Banking and Finance (57%)
- Insurance (57%)
- Retail (57%)
- Telecommunication (57%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Java Performance Profiling
JProfiler is a commercial profiling tool for analyzing Java applications while they run. It helps teams inspect CPU usage, memory allocation, garbage collection, threads, locks, and database activity. Specialists use it to connect slow user journeys or unstable services to measurable runtime behavior.
Applications and Systems
JProfiler supports troubleshooting across many Java workloads, from Spring and Jakarta EE services to desktop applications, batch jobs, and distributed backends. It is useful in development, test, staging, and carefully controlled production investigations. Teams in Germany may apply it to enterprise software, manufacturing systems, financial services, logistics, and other Java-based operations.
- Trace slow methods and request paths
- Find memory leaks and excessive allocation
- Investigate thread contention and deadlocks
- Analyze JDBC, Hibernate, and database calls
Ecosystem and Tooling
Strong JProfiler work includes more than opening a profiling session. Professionals work with Java Virtual Machine settings, garbage collectors, heap dumps, thread dumps, JFR recordings, and application logs. They may combine JProfiler with Spring Boot Actuator, IntelliJ IDEA, Maven or Gradle, CI pipelines, Docker, and observability tools such as Prometheus or Grafana.
When Companies Need Help
Freelance expertise is valuable when a performance problem is difficult to reproduce, an upgrade changes runtime behavior, or internal teams need an independent investigation. It can also support release readiness, capacity work, production incident analysis, and a structured optimization plan.
- Response times remain high despite code changes
- Heap usage grows without a clear cause
- Garbage collection disrupts service stability
- A Java service needs evidence before redesign
What Good Deliverables Include
A capable specialist begins with a clear question, suitable profiling settings, and a safe test plan. Deliverables may include profiling recordings, annotated snapshots, hotspot analysis, allocation findings, database and lock evidence, and prioritized recommendations. The best work separates symptoms from root causes and explains trade-offs in terms the wider team can use.
Choosing a Specialist
Look for practical experience with the Java version, framework, deployment model, and workload involved. Ask how the specialist protects sensitive data, limits profiling overhead, and validates improvements after a change. For teams in Germany, remote collaboration is often effective when logs and environments are accessible; on-site sessions may help with restricted systems or close cooperation in German-speaking teams.
Frequently asked questions
Questions about JProfiler? Start with the answers below.
JProfiler is used to investigate performance and stability problems in Java applications. It shows CPU hotspots, memory allocation, garbage collection, thread behavior, locks, and database activity so a specialist can trace symptoms to likely causes.
JProfiler offers an interactive interface with detailed views for CPU, memory, threads, monitors, and probes. Java Flight Recorder is built into the Java ecosystem and is useful for low-overhead event recording, so teams often use both rather than treating them as direct substitutes.
JProfiler work benefits from strong knowledge of the Java Virtual Machine, garbage collection, concurrency, JDBC, Hibernate, and application frameworks such as Spring Boot. Experience with JFR, heap dumps, logs, CI pipelines, containers, and observability tools helps turn profiling evidence into reliable fixes.
JProfiler is easier to use well when the specialist understands the application’s architecture and workload, not just the tool interface. A focused investigation may need a narrow profiling assignment, while recurring production issues or complex distributed systems call for broader Java performance expertise.
JProfiler investigations can usually be performed remotely when the specialist has secure access to recordings, test environments, logs, and deployment information. On-site collaboration in Germany can still be useful for restricted systems, incident workshops, or teams that prefer close work in German.
JProfiler provides profiling modes that can be selected according to the investigation and acceptable overhead. A careful specialist starts in a suitable environment, narrows instrumentation where possible, and validates findings before using any production-oriented approach.
JProfiler work is strong when it links a business-facing symptom to reproducible evidence and a clear technical cause. Ask for a concise baseline, the profiling conditions, relevant recordings or snapshots, prioritized actions, and measurements showing whether the change improved the target behavior.
JProfiler specialists should clarify the Java version, framework, deployment model, data sensitivity, reproduction steps, and success criteria. They should also agree on access, profiling windows, expected deliverables, and how findings will be tested after optimization.
The average hourly rate of freelancers in Germany who have used JProfiler in their recent projects is 97 €, which corresponds to a daily rate of about 778 € based on an 8-hour working day.
Of the freelancers in Germany who have used JProfiler in their recent projects, 100% hold at least a Bachelor's degree, 100% hold at least a Master's degree, and 43% hold a doctorate.
On average, freelancers in Germany who have used JProfiler in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.4 years.
The most common languages among freelancers in Germany who have used JProfiler in their recent projects are German (100%), English (100%), and Russian (29%).
The most common industries among freelancers in Germany who have used JProfiler in their recent projects are Information Technology (100%), Healthcare (71%), and Government and Administration (71%).
The most common business areas among freelancers in Germany who have used JProfiler in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (100%).
Main locations of FRATCH Experts, who have recently used JProfiler
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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Philipp Thomaschewski
FRATCH CEO
