Apache Ant Experts in Cologne
matched in minutes with vetted and available freelance specialistsHire experts who maintain Java build automation, design reusable Ant targets and integrate tools such as Ivy, JUnit and application servers. Get precise access to vetted, available freelancers who match your requirements quickly.
Meet FRATCH Experts in Cologne, who have recently used Apache Ant
Burhan D.
Last position:
Enterprise Architect & Solution Architect at DB Netz AG
With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.
- Capture current architectures of existing systems as well as methodical consulting and development of target architectures
- Deepen and maintain the building plan / target IT landscape
- Implement technical architecture concepts & architecture descriptions
- Implement migration concepts for updating and further developing the platform and information systems
- Assess submitted improvement suggestions as part of the project
- Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
- Create a compatibility matrix of the components in use and compare dependencies of specific versions
- Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
- Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
- Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
- Advise the Release Train Engineer / Project Manager in identifying project risks
- Advise the System Architect Engineers in steering the implementation of the concept
- Implement the IT concept
- Document the infrastructure
Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot
Predrag P.
Last position:
Test Developer | Test Automation Engineer at CreditReform
Technologies: Java 25, Selenium, Insomnia, SSO, Gitlab, Jenkins, Docker, Kubernetes, Jira, IntelliJ, Nexus, Oracle, MariaDB, SpringBoot, Grafana, Concept Board, Vue.js, OpenApi, Kotlin. Implementation, maintenance, and enhancement of automated end-to-end regression tests for UI and API interfaces. Appropriate and targeted test automation involving multiple software products, including Java-based Windows applications. Automation of business processes with Selenium, reset jobs, and DB import jobs, as well as creation of test concepts, test case descriptions, and structured defect reporting.
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.
Allal K.
Last position:
Java Senior Full Stack Developer at Insurance ÖRAG
- Further development of a policy administration system (contract/claims) for the legal expenses insurer ÖRAG.
- My role: Senior Software Developer.
- The team consists of 12 developers.
- Technologies used: Java 8/21, Java EE, Quarkus, WebLogic, JPA, RabbitMQ, JTA, CI, CD, Jenkins, DB2, Maven, Jenkins, GIT (bitbucket) later GitLab, Junit, Elasticsearch, Mockito, Jira, SonarQube, Scrum, React, Workflow
- Migration and modernization of legacy systems: rewrote C and C++ code in Java to improve maintainability, scalability, and performance. Refactored Python into Java, including optimization and integration into modern architectures.
- Study on the use of AI (Codex) for implementing a Java feature. The goal is to compare the time spent and productivity of AI-supported development with a classic implementation by a developer. The results should show how strongly the use of AI affects development time and efficiency.
- Development of the following tariff calculators for the years 2024/2026: private, companies, doctors, farmers, owner-occupied G + H, landlords, traffic, club, top managers, sales representatives, special criminal law, savings bank, municipal, BayGT, doctors, Dehoga
Stanislaus S.
Last position:
Security Consultant at Rohde & Schwarz AG at Star Labs GmbH
- Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
- Developed and audited Linux drivers
- Collaborated using GitLab, Gerrit, Confluence and Jira
- Technologies: C, C++, Secure Boot
Alexander V.
Last position:
Senior DevOps / Platform Engineer at Kaufland e-commerce / real.digital (ex hitmeister.de)
- Evolved the platform from bare-metal infrastructure with a monolithic PHP application to a hybrid Google Cloud architecture with Go microservices on Kubernetes
- Managed and scaled a production infrastructure with 300+ VMs and dozens of clusters, including MySQL, PostgreSQL, MongoDB, RabbitMQ, Redis and Elasticsearch clusters
- Designed architecture, deployment, monitoring, performance analysis, and upgrades for all platform services using Terraform and Ansible
- Migrated observability systems from ELK and Prometheus to Datadog, managed with Terraform
- Introduced Jenkins CI/CD with SonarQube integration and automated tests to speed up feedback cycles
- Containerized the testing environment and implemented GitLab CI pipelines for Docker image builds, static code analysis, and infrastructure tests
- Performed zero-downtime migrations of MySQL and MongoDB clusters to Google Cloud
- Developed reusable Ansible roles for database clusters and automated data obfuscation for staging environments
- Decomposed monolithic databases and migrated to microservice architectures
- Built tools to detect and optimize slow queries in MySQL and MongoDB
- Conducted online schema migrations with pt-online-schema-change without downtime windows
- Developed internal Go applications for batch queries, GitLab-Jira integration, and MongoDB backup recovery
- Technologies: Debian, Ubuntu, Alpine, Go, Bash, Python, PHP, SQL, GitLab CI, Jenkins, Drone CI, MySQL, MongoDB, PostgreSQL, Redis, Elasticsearch, RabbitMQ, Kafka, Docker, Kubernetes, Nomad, Ansible, Terraform, Grafana, ELK, Prometheus, Datadog, Nagios, Zabbix, Nginx, HAProxy, Vault, Helm, SonarQube, Filebeat, Auditbeat, Google Cloud, AWS
Vladimir M.
Last position:
Developer at Financial services provider
- Support and further development of a framework for developing applications in a banking association: DynS/OSPE
- Migration of the framework to Java 11 and Java 17
- Java8, Java11 and Java17, Spring, Spring-Batch, Spring WebServices, Spring-Security, Spring-Data, JPA, Hibernate, OpenSource libraries etc.
- XML, JAXB, JSON, REST and SOAP services, DB2, Oracle, WebSphere or Liberty AS, FreeMaker, Junit, mock libraries, JaCoCo, Maven, IntelliJ, Eclipse, GitHub, SVN, Jira
Peter B.
Last position:
Data Warehouse Consultant (Development and Analysis) at Atruvia AG
- Developed and enhanced ETL loading jobs with IBM DataStage and optimized SQL in an IBM DB2 environment as part of the Agree21 data migration
- Analyzed data quality and developed test procedures
- Created PowerShell scripts and documented GIT deployment processes
- Technologies: RedHat Linux, IBM DB2 with DBVisualizer, IBM InfoSphere DataStage 11.7, JIRA, TortoiseGIT, TortoiseSVN, PowerShell scripts
Fabian K.
Last position:
Managing Partner at FK Solution Design GmbH
- Founded FK Solution Design GmbH and acts as managing partner.
- Optimizes existing system landscapes, reduces data silos, and connects software systems.
- Enables more efficient data usage and reduces process lead time.
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
Thomas P.
Last position:
Freelance Software Architect at Self-employed
Jacqueline K.
Last position:
OTTO
- Design, development, and monitoring of microservices
- Migrating functions from a monolithic system into separate microservices
- Designing and implementing new microservices (backend and frontend)
- Setting up and maintaining a CI/CD pipeline (GitHub Actions)
- Configuring cloud infrastructure with AWS CDK and Terraform
- Designing and implementing event-driven communication with AWS SNS/SQS and Apache Kafka
- Ensuring code quality through Test Driven Development (TDD), static code analysis, and Clean Code
Discover over 15,000 top freelancers
Statistics of experts using Apache Ant
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 24 years)
Position duration
2.3 years (Germany: 2.2 years)
Positions per freelancer
16 (Germany: 17)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Insurance
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
90%
Master's degree or higher
60% (Germany: 49%)
Doctorate
20% (Germany: 6%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Cologne using Apache Ant
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Apache Ant 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 (92%)
- Banking and Finance (58%)
- Insurance (58%)
- Retail (58%)
- Telecommunication (58%)
- Transportation (50%)
- Automotive (33%)
- Government and Administration (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Build automation with Ant
Apache Ant is an open-source build tool for Java and other JVM-based projects. It uses XML build files to describe compilation, testing, packaging, deployment and cleanup tasks. Its task-based model gives teams explicit control over repeatable build workflows without requiring a full integrated build system.
Core project work
Ant supports the complete path from source code to deployable artifacts. Experts commonly create and maintain build files for:
- Compiling Java source and processing resources
- Running unit tests and generating reports
- Packaging JAR, WAR and EAR files
- Copying configuration and release assets
- Deploying applications to controlled environments
Ecosystem and tooling
Strong Ant specialists understand the Java ecosystem around the build script. They work with Ant tasks, property files, XML namespaces and custom task definitions, while connecting builds to Ivy for dependency management, JUnit for testing and application servers for deployment. They can also integrate Ant with version control and continuous integration workflows.
When expertise matters
Companies often bring in freelance Ant experts when a legacy Java build has become difficult to change or document. They may need to migrate selected workflows, standardize release steps, repair fragile integrations or keep an established product line stable while broader modernization continues. In Cologne, remote collaboration can work well when build ownership, access and documentation are clearly organized; on-site sessions may help with complex release environments.
Signs of a strong specialist
The best professionals do more than edit XML. They trace target dependencies, isolate environment-specific properties and make failures understandable. Look for practical experience with:
- Incremental and reproducible builds
- Dependency resolution with Ivy or compatible tools
- Test, packaging and deployment automation
- CI runners, artifact repositories and release controls
- Gradual migration from older Java build processes
Reliable delivery standards
Quality work leaves a build that another team can operate confidently. A capable expert documents targets, separates secrets from configuration, removes hidden machine dependencies and verifies clean-build behavior. They also explain when Ant remains the right fit and when Maven, Gradle or a purpose-built script would better support the project’s long-term needs.
Frequently asked questions
Need clarity? These are the questions we hear most often about Apache Ant.
Apache Ant automates repeatable tasks in Java and JVM projects, including compilation, testing, packaging and deployment. Companies use it to turn a sequence of manual release steps into a documented build process.
Ant gives teams explicit control over tasks and build flow, while Maven provides stronger convention and dependency structure out of the box. Gradle adds a programmable build model and modern dependency features, so the right choice depends on project age, migration goals and the required level of customization.
A strong Ant specialist should understand Java compilation, XML build files, version control and continuous integration. Experience with Ivy, JUnit, artifact repositories, application servers and release automation is also valuable.
The required depth depends on the build’s size and risk. For a small repair, a professional who can read targets and properties may be enough; complex multi-module releases call for an expert who can map dependencies, stabilize environments and improve delivery without breaking existing behavior.
Yes. Apache Ant work is often suitable for remote collaboration because build files, logs and configuration can be reviewed through shared repositories and CI systems. Clear access controls, German or English documentation and agreed release windows help teams in Cologne work effectively across locations.
Ant can remain a sensible choice when a stable product depends on custom tasks, established release procedures or older Java infrastructure. Migration is worth considering when maintenance is costly, dependency handling is unclear or the build no longer fits the team’s delivery model.
Ask the specialist to explain target dependencies, property scopes, clean-build behavior and failure handling. High-quality Ant work is reproducible, documented and easy to run in CI, with secrets separated from build configuration and deployment steps made explicit.
Ant projects in Cologne may involve established Java products, internal systems or release pipelines that require careful continuity. Professionals should be ready to work remotely or on-site, communicate clearly in the team’s preferred language and document changes for long-term maintenance.
The average hourly rate of freelancers in Cologne, Germany who have used Apache Ant in their recent projects is 100 €, which corresponds to a daily rate of about 802 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Apache Ant in their recent projects, 90% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Cologne, Germany who have used Apache Ant in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Cologne, Germany who have used Apache Ant in their recent projects are German (100%), English (100%), and French (25%).
The most common industries among freelancers in Cologne, Germany who have used Apache Ant in their recent projects are Information Technology (92%), Banking and Finance (58%), and Insurance (58%).
The most common business areas among freelancers in Cologne, Germany who have used Apache Ant in their recent projects are Information Technology (100%), Product Development (83%), and Quality Assurance (75%).
Main locations of FRATCH Experts, who have recently used Apache Ant
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 
Frankfurt 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
