Apache Maven Experts in Hamburg
, matched fast with vetted and available freelance specialistsHire experts who manage Maven project structures, dependency resolution and release automation across Java applications and libraries. FRATCH uses precise AI matching to connect you with vetted, available freelancers quickly.
Meet FRATCH Experts in Hamburg, who have recently used Apache Maven
Niko S.
Last position:
Developing Architect, Technical Lead "gridlytics" at HH Energienetze
- Building a data integration platform for high, medium, and low voltage assets for contextual analysis of time series with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
- Responsibility for the architecture and implementation of the solution, as well as sparring partner for the Product Owner.
- Use of Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, jupyter, and various API gateways.
Daniel S.
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Rutger B.
Last position:
Partner & Managing Director at AI.IMPACT
- Building an AI & Data Consultancy Practice with the goal of helping European companies adopt Artificial Intelligence and modern data platforms
- End-to-end further development of a production system using modified coding agents (OpenCode). Tech stack: Kubernetes, Argo, Keycloak, Typescript, Grafana, GitOps, DevOps, Playwright
- Internal research project on the use of coding agents in the field of mathematical logic for creating formal models. Use of Cursor IDE and Codex, Codex CLI. Architecture design, quality control and refactoring, as well as writing code and tests. Repository (open source) available pre-launch
- Research on the role of mathematical logic as a formal language that connects IT and AI with business processes
- Project lead for collecting and deploying parking recommendations for rail vehicles with significant savings potential based on real-time data in a mobility and transport company
- Project lead for collecting and distributing process measurement points for real-time control in a mobility and transport company
- Deputy application owner for an app used for communication in the dispatching and provision of rail vehicles
Rainer D.
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
Alex O.
Last position:
Contractor at Telefonica Germany GmbH & Co. OHG
- Data-analysis, Preparation, gathering and coordination of business requirements for retrieval of monthly- and long term (CLV – relevant) cost- and revenue-components per contract for a customer–base–grouping project (HUB–Project) for B2C-Postpaid-Controlling
- Concept and Implementation of cost- and revenue-KPIs calculation and corresponding CLV–reports (Oracle, Perl, SVN, MS SQL Server, MS Power BI, Serviceware Performance Analytics)
- Operational support of the HUB-Project – various ad-hoc reports, deployments, job-scheduling etc. (Oracle, SVN, BICSuite–Scheduler, DWSODA etc.)
- Analysis, implementation, retrieval and reporting of various physical and financial KPIs for B2P-Prepaid Business on an existing data-mart (Oracle, Perl)
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.
Jonas T.
Last position:
IT Consultant at Bechtle AG
- Prequalified 200 demands within five weeks on the multi-cloud-commerce platform bechtle-clouds.com with three external consultants
- Served a dual role as project manager and requirements engineer for various enhancements
- Domain topics: reimplementation of Entra ID Sync, improvement of support processes, optimizations in the product catalog
- Demand and project management in ServiceNow
- Refinement of epics and stories with internal teams and external service providers
- Management of the external international service provider
Sridhar H.
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
Paul K.
Last position:
Senior Flutter Developer at Elea.health
- Further development of a complex laboratory information system
- Development of new features including design
- Close collaboration with company leadership
- Embedded in a top team with consistently high performance under time pressure
- Agile approach, Kanban
Oliver L.
Last position:
Developer, Architect at libri GmbH
- Role: Developer, Architect
- Technologies: java, typescript, golang, spring (boot, web, security, data), Angular, AWS (OpenSearch, Aurora, SNS/SQS, CloudWatch, EC2, IAM), Kubernetes, Terraform, Helm, OAuth, Keycloak, CI/CD, gradlew, Liquibase, Test Driven Development, shell scripting
Marcel S.
Last position:
Lead Developer / Software Architect at Rezeptprüfstelle Duderstadt GmbH
Responsible for the new development of billing and auditing software for prescriptions (prescriptions) to fully check and evaluate e-prescriptions for correctness (content, billing)
The system consists of several contexts that run as services (Docker containers):
Checking and processing data deliveries via FTP and email
Managing invoices, clearings, advance payments and deductions
Managing and running audit rules and audit folders
Evaluations based on Metabase
Developer Stack: Kotlin, Vue 3 / Vuetify 3, ANTLR, Spring Boot 3, REST API, Gradle, Docker, GitLab, PostgreSQL, Kafka, Keycloak, Scrum, Grafana, Loki, Testcontainers, Prometheus
Rolf G.
Last position:
Developer & Designer at Security authorities
- Migration of a case processing system with numerous interfaces to other systems from Spring and Activiti to a Java JEE application
- Further development into a cloud application
- Consulting, development, requirements analysis, specification and design
- Coordination with upstream and downstream systems
- Data modeling, programming and implementation
- Support with code reviews and ensuring clean code in the PL/SQL context
- Documentation in Confluence
- Troubleshooting PL/SQL applications including log analysis, session tracing and performance profiling
- Optimization and tuning measures in the PL/SQL environment
- Knowledge transfer and onboarding of new employees
- Use of Jira for task management, progress tracking and sprint planning
Florian F.
Last position:
Solution Architect with Developer Focus at SymFinIT Solutions GmbH
- Further development of a finance layer for subscription and one-time purchase billing and accounting.
- Technologies: Kotlin, AWS (SQS, S3, ElastiCache, Aurora), React, TypeScript, Coroutines, IntelliJ IDEA, Spring (Boot, Data, WebFlux), JUnit, Testcontainers, Cucumber, Liquibase, PostgreSQL, Webservices (REST), R2DBC, OpenAPI 3, Gradle, GIT, Docker, Netty, GitHub Actions, Jira/Confluence, arc42
Jürgen B.
Last position:
Software Developer at Inform AG
- Coaching junior developers
- Further development and customer-specific extensions of a standard software product (microservices (DDD) and partly monolith)
- Interface extensions
- Web services
- Test automation
- Design
- Technologies used: Java8, Java17, TypeScript, Python, PostgreSQL, Spring (Integration, Data, Boot), JPA, AWS (Cloud, Lambda, EC2, SQS/SNS), Microservices, Fitnesse/Cucumber, Gitlab
Andreas S.
Last position:
Lead Developer at Software
- Extended the document management system with a standard CMIS (Content Management Interoperability Services) interface
- Implemented CMIS core services like navigation, access rights, search, CRUD operations, and versioning in Java
- Implemented based on RESTful / OpenAPI services
- Delivered as a fat-jar and native container image
- Deployed on-premises and serverlessly as an Azure Container Application using Terraform
- Improved team autonomy through infrastructure engineering and short feedback loops
- Established observability with OpenTelemetry, Azure Monitor, and Azure Logic Apps
- Introduced Terraform and trunk-based development processes
- Ensured quality with BDD tests in C# using SpecFlow and Testcontainers
- Created Azure DevOps pipeline integration tests
- Introduced cloud deployment processes
- Trained staff in cloud and Terraform
Discover over 15,000 top freelancers
Statistics of experts using Apache Maven
Aggregated from the professional profiles of matched freelancers.
Experience
25 years (Germany: 20 years)
Position duration
2.2 years (Germany: 1.9 years)
Positions per freelancer
18 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
88% (Germany: 93%)
Master's degree or higher
47% (Germany: 56%)
Doctorate
18% (Germany: 7%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
95% (Germany: 97%)
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 Hamburg 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 Hamburg using Apache Maven
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.
Apache Maven 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%)
- Retail (64%)
- Banking and Finance (55%)
- Transportation (50%)
- Professional Services (45%)
- Energy (41%)
- Healthcare (41%)
- Automotive (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Build foundations
Apache Maven is a build automation and project management tool used throughout the Java ecosystem. It describes projects in a pom.xml file, resolves dependencies, runs tests and packages applications in a repeatable way. Teams use Maven for libraries, services, enterprise applications and multi-module systems.
Project structure
Maven gives Java projects a consistent lifecycle, from validation and compilation to testing, packaging and installation. Standard conventions reduce custom build logic, while profiles and properties adapt builds for different environments. Experts often refine parent POMs, module boundaries and version management.
Ecosystem and tooling
Maven works with Java frameworks, application servers, testing libraries and repository managers such as Nexus and JFrog Artifactory. Its plugin ecosystem connects builds with static analysis, code coverage, containers and release processes. Strong specialists also work with Git, CI systems, Docker and secure artifact handling.
When companies need help
- Migrating legacy Ant or custom scripts to Maven
- Structuring large multi-module Java repositories
- Fixing dependency conflicts and unreliable builds
- Automating tests, releases and artifact publication
- Upgrading plugins, Java versions or repository setups
Freelance expertise is useful when a build has become slow, fragile or difficult to understand. Companies in Hamburg may also bring in specialists to support distributed teams, modernize established Java systems or establish consistent delivery practices across locations.
Delivery quality
Good Apache Maven professionals understand more than command-line goals. They assess the dependency graph, choose suitable plugin versions, separate build concerns and make failures easy to diagnose. They also document conventions, protect credentials and keep local, CI and release builds aligned.
Project collaboration
A focused engagement may cover a build audit, POM redesign, dependency upgrade, CI integration or release automation. Remote collaboration works well when repositories, build logs and acceptance criteria are accessible; on-site work in Hamburg can help with workshops and complex coordination. Clear communication in English or German should match the project team.
Frequently asked questions
Everything clients usually want to know about Apache Maven, in one place.
Apache Maven automates builds and manages dependencies for Java projects. It can compile source code, run tests, package applications, publish artifacts and support repeatable release workflows.
Maven relies on convention, declarative POM files and a mature plugin ecosystem. Gradle offers more flexible scripting and can be faster in some builds, while Maven is often preferred when predictable project structure and broad team familiarity matter.
A strong Apache Maven specialist usually understands Java, Git and continuous integration. Experience with JUnit, Spring, Docker, repository managers, artifact security and tools such as Jenkins or GitHub Actions can also be important.
The right level depends on the build problem, not on a fixed number of years. A straightforward POM change may need focused support, while multi-module migrations, dependency governance or release design require a professional who has handled comparable Java build systems.
Maven supports modern Java versions through suitable compiler settings, plugins and dependency choices. An experienced specialist checks plugin compatibility, framework requirements, test execution and the build environment before changing the project.
Apache Maven projects are usually well suited to remote collaboration because the work is visible in repositories, build logs and CI pipelines. For Hamburg-based teams, remote or on-site cooperation can both work, provided access, documentation and communication expectations are clear.
Ask how the Apache Maven professional diagnoses dependency conflicts, manages plugin versions and improves reproducibility. Request examples of clear POM design, dependable CI builds and documented release processes rather than relying only on tool familiarity.
Bring in a Maven specialist when builds are fragile, dependency upgrades are blocked, modules lack consistent structure or releases depend on manual steps. Freelance support is also useful for a focused migration or audit when permanent hiring would not fit the need.
The average hourly rate of freelancers in Hamburg, Germany who have used Apache Maven in their recent projects is 99 €, which corresponds to a daily rate of about 795 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Apache Maven in their recent projects, 88% hold at least a Bachelor's degree, 47% hold at least a Master's degree, and 18% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Apache Maven in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Hamburg, Germany who have used Apache Maven in their recent projects are German (100%), English (95%), and French (18%).
The most common industries among freelancers in Hamburg, Germany who have used Apache Maven in their recent projects are Information Technology (100%), Retail (64%), and Banking and Finance (55%).
The most common business areas among freelancers in Hamburg, Germany who have used Apache Maven in their recent projects are Information Technology (100%), Product Development (95%), and Project Management (68%).
Main locations of FRATCH Experts, who have recently used Apache Maven
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 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
