Enterprise Service Bus Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Enterprise Service Bus
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
Michael K.
Last position:
Enterprise Architect, Lead Architect of the transformation program and coach at Swiss Ministry
- Development of the overall architecture
- Support for the respective workstreams in developing architectures in the areas of infrastructure, data centers, security, and network topology
- Management of the architect pool
- Support for program management in setting up the transformation project based on agile methods
- Consideration of regulatory requirements for IT projects in the federal administration
Lothar H.
Last position:
Solution Manager for the investigation PoC and exchange and refinement of an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigation PoC and exchange and refinement of an existing cloud and IoT power plant control solution for certificate management of renewable energy power plants (solar, wind, biomass and others) of the largest European renewable energy power plant operator in this field, including investigation of the IoT devices used in the field and their integration and network connection with the aim of automated PKI key management.
- Messaging with Kubernetes for large API-connected enterprise applications
- Risk and Attack Vector Analysis, Software Quality & Bug Assessments
- Agile Workload Scheduling via Jira & ConJluence
- Evaluation of message streams Pub/Sub for MQ and KaJka.
- Various tests with “best design approaches” regarding resilience patterns such as Circuit Breaker Designs, Throughput Measurement and Monitoring, Bulkhead Governors - for robust EA design
- Integration of API Management with IBMs API Connect to Kubernetes - for agnostic Microservices API Management Designs. Google Apigee
- Solution Health Check Approaches for Load Burst Situations + Remedy
- Research and investigation of available potential subcontractors in the coordinating role as Solution Manager. CIS20 Controls.
- Dread and Stride Security Assessments.
Santhosh K.
Last position:
Freelance Software Engineer at Zalando SE
- Drive migration of enterprise authorization platform from Styra DAS to open-source OPA via Skipper (Zalando's Golang-based ingress proxy) integration
- Optimise k8s resources and integrate native Prometheus metrics with OPA
- Migrate from internal monitoring solution to Prometheus CRs + Dash0
Tech Stack: Java/Kotlin, Golang, Python, Spring Boot, AWS, Kubernetes, Docker, OpenTofu, Prometheus, Grafana
Gerhard K.
Last position:
Senior Project Manager and Site Manager at HENSOLDT Optronics GmbH
- Construction of the data center in Oberkochen (Defence area)
- Planning of the fiber-optic ring, simulation of Wifi coverage
- Installation plan for WAN and LAN cables for office and production (infrastructure)
- Adaptation of the SAP system (R3) for the Oberkochen site (software)
- IT transformation of the SAP system to SAP HANA
- Planning of network infrastructure and server technologies in the SAP environment
- Pré-Sales support and establishment of change management
- Independent coordination of Utilities according to Time, Budget and Quality
- Mapping of the project in MS-Projekt and SERVICENow
- Development and design of hardware and software
- Demand management and portfolio management
- Establishment of a risk register and migration plan
- Preparation of documents supporting payment in coordination with the responsible financial and commercial functions
- Budget: 5 Mio. - 34 FTE
Christian T.
Last position:
HDI DevOps & Fullstack Engineer at HDI
- Spring Boot Software Engineer
- DevOps Engineer (Kubernetes, Azure DevOps)
Toolstack: Java, Spring Boot, Kubernetes, Helm, GitOps, ArgoCD, Docker, Azure DevOps, CI/CD Pipelines, Git, Postgres
Christian W.
Last position:
Technical Senior Tester and Test Manager at Christian Wegener Beratung
Creation and review of test conditions
Execution of functional tests
Defect management
Supplier management
Team coordination
Estimation of test effort and reporting
Test planning
Further development and new development of integrated schedule systems
Java web client/Linux server, Oracle Instantclient/Oracle Database Appliance Server, Unix, ESB – Enterprise Service Bus, SQL, TIBCO EMS – Enterprise Message Service/JMS, REST, Impero Guest
HP ALM / Micro Focus Quality Center, Citrix, JIRA, XRAY, Impero Guest, MobaXTerm, Confluence, Sharepoint, MS-Teams, MS-Office
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.
Ulrich S.
Last position:
Senior Tester at Arvato Systems GmbH
- Planning, defining, and executing test cases for product creation, measurement data upload, and chart verification
- Developing keyword driven function tests using Robot Framework
- Defining and generating realistic test data with Python
- Implementing data-driven and REST API interface tests
- Performing image comparison tests based on OpenCV
- Developing load tests for various environments
- Conducting regression and end-to-end tests, reporting results, and managing defects
- Systematic expansion of test coverage
- Integrating Jenkins with Xray for test management
- Managing tickets with JIRA and documenting in Confluence
- Used Robot Framework, Playwright, Python, VS Code, Prectavi, JIRA, Confluence & Xray, Bitbucket, GitHub, Jenkins, MS Office 365, and Teams in an agile project.
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
Klaus E.
Last position:
Exasolution DBA at Rechenzentrum Innsbruck
- DBA Exasolution Server consulting and migration to version 8
- Analysis of SQL query performance and tuning
- Troubleshooting in batch scripts
- Technologies: Gitlab, EXACloud, EXAOperation, DBeaver, Control M
Robert V.
Last position:
Freelance Consultant Information Security and Business Continuity at Freelance business consulting
- Provide consulting services nationwide in both private and public sectors
- Advise on information security management systems, IT-Grundschutz, KRITIS compliance, TISAX, business continuity and crisis management
- Support the introduction of policies, risk management methods, asset registers and supplier management
- Conduct internal audits, training workshops and support audit preparations
Holger G.
Last position:
Senior Vice President of Engineering at Uptempo GmbH
- Responsible for development, architecture, QA, BI, AI and cloud operations across a global engineering organization of 150+ engineers in 21 teams across 6 countries
- Led the transformation from legacy single-tenant architecture to a cloud-native multi-tenant SaaS platform using AWS, Kubernetes and event-driven architectures
- Established engineering operating models, architecture governance and DevOps practices across multiple international teams
- Introduced Generative AI capabilities (Azure OpenAI, RAG) to enable AI-driven product features and secure enterprise data access
- Responsible for cloud infrastructure strategy, security and compliance (ISO 27001, SOC1/2) and cloud cost optimization (FinOps)
- Led enterprise integrations with ERP, CRM and commerce systems for global customers
Gilbert H.
Last position:
Process Design: Solution Development and Release Management at E.ON Digital Services
- Led workstream for analysis and optimisation of the solution development and release process within the newly established organizational structure
- Analyzed and adopted existing processes after transition of technical responsibility to E.ON Digital Services
- Supported the agile development approach within engineering teams
- Established a unified workflow for business requirements and clear communication interfaces, documented using Atlassian Jira on both the business and engineering sides
- Created dashboards with Rich Filters for Jira Dashboards to provide an overview of feature releases and their connection to technical releases
- Designed new burnup charts and statistics per release to improve transparency of overall technical progress at the product level
Werner K.
Last position:
Test Coordinator, Designer and Engineer at IBM
- Testing the SekIDP and related components
- Test design, execution and automation, microservices, GitHub Enterprise, Eclipse, Katalon Test Platform, API Testing, Confluence 8, JIRA/Xray, Draw.io, Swagger/OpenAPI, Postman, Docker, Kubernetes, Podman, PuTTY, E-Health, Telematik, Gematik standards, EPA, E-Rezept, sektoraler IDP, encryption, XaDES, PaDES, DICOM, HL7, FHIR, IHE, ICD, SSO, SAML/Shibboleth, OAuth, smartcards, JWT, two factor authentication Android and iOS, Wireshark, BrowserStack, Cypress, gRPC, REST, SOAP, WS-Security, Linux Shell, PowerShell, SSH/SSL, Java, Kotlin, Cordova, Gradle, Groovy, Python, TypeScript
Discover over 15,000 top freelancers
Statistics of experts using Enterprise Service Bus
Aggregated from the professional profiles of matched freelancers.
Experience
25 years
Position duration
2.2 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
86%
Master's degree or higher
64%
Doctorate
9%
Certifications per freelancer
4
Most common languages
German, English, French
Speak two or more languages
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 Germany 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 Germany using Enterprise Service Bus
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.
Enterprise Service Bus 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%)
- Automotive (59%)
- Banking and Finance (59%)
- Professional Services (52%)
- Transportation (48%)
- Education (45%)
- Government and Administration (38%)
- Insurance (34%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What an ESB does
An Enterprise Service Bus, or ESB, is middleware that connects applications, services and data sources across an organisation. It routes messages, transforms formats and applies business rules without forcing every system to communicate directly with every other system. This creates a controlled integration layer for complex environments.
Integration patterns
ESB solutions support synchronous APIs, asynchronous messaging, event-driven flows and scheduled transfers. Specialists build mediation routes that handle validation, enrichment, retries, error queues and audit trails. They also define service contracts so changes in one system do not unexpectedly disrupt others.
Ecosystem and tooling
Common ecosystems include MuleSoft, IBM App Connect, WSO2, Software AG webMethods, Oracle Service Bus and Apache Camel. Effective work may also involve REST, SOAP, XML, JSON, XSLT, JMS, Kafka, message brokers, API gateways and container environments. Monitoring and deployment tooling is essential for safe operation.
Where companies use it
ESBs appear in banks, insurers, manufacturers, retailers, logistics organisations and public-sector environments. They are useful when established systems must work with newer cloud services, partner platforms or internal applications.
- Connect ERP, CRM and legacy systems
- Transform SOAP, REST, XML and JSON messages
- Orchestrate multi-step business processes
- Expose controlled services to partners
When freelance expertise helps
Companies often bring in freelance specialists during an integration programme, a platform migration or a period of middleware modernisation. They can assess an existing bus, reduce fragile point-to-point links, establish observability or take ownership of a delivery gap. In Germany, projects may require close collaboration with local IT, compliance and business teams, either remotely or on site.
What strong specialists deliver
Strong professionals understand both integration technology and the business process behind each message flow. They document interfaces, design for failure, secure credentials and sensitive payloads, and test unusual conditions rather than only successful paths. They leave behind maintainable configurations, clear runbooks and an upgrade plan that operations teams can use.
Frequently asked questions
Everything clients usually want to know about Enterprise Service Bus, in one place.
An Enterprise Service Bus connects applications that use different protocols, data formats or communication styles. It can route messages, transform payloads, coordinate workflows and centralise error handling between systems such as ERP, CRM and legacy platforms.
An ESB introduces a shared integration layer instead of creating a separate connection for every pair of applications. This can improve governance, reuse and monitoring, although it also requires disciplined design to avoid creating a central bottleneck or overly complex flows.
An Enterprise Service Bus can still be useful when microservices must coexist with legacy applications, partner systems or transactional middleware. For lightweight service-to-service communication, teams may prefer direct APIs, event streaming or a service mesh, depending on the required routing and governance.
A strong Enterprise Service Bus specialist usually understands REST, SOAP, XML, JSON, messaging, API management and authentication. Experience with Java, cloud services, Kafka, CI/CD pipelines and observability is also valuable when the integration landscape spans modern and legacy systems.
The right ESB experience depends on scope, risk and the number of connected systems. A contained interface may need a specialist who can configure and test flows, while a migration or shared integration platform calls for someone who can shape architecture, governance, security and operational support.
Much Enterprise Service Bus work can be delivered remotely because configuration, testing and documentation are digital. On-site workshops can still help when specialists need access to restricted environments, close coordination with operations teams or direct contact with business stakeholders in Germany.
Look for evidence that the ESB professional has delivered integrations with clear contracts, reliable error handling and useful operational monitoring. Ask how they test retries, duplicate messages, failed transformations, security controls and downstream outages, not just how they create a successful route.
A freelancer experienced with Enterprise Service Bus work may have used MuleSoft, IBM App Connect, WSO2, Software AG webMethods, Oracle Service Bus or Apache Camel. The product matters, but the ability to transfer integration patterns, troubleshoot production flows and document decisions matters just as much.
The average hourly rate of freelancers in Germany who have used Enterprise Service Bus in their recent projects is 103 €, which corresponds to a daily rate of about 827 € based on an 8-hour working day.
Of the freelancers in Germany who have used Enterprise Service Bus in their recent projects, 86% hold at least a Bachelor's degree, 64% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Germany who have used Enterprise Service Bus 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 Germany who have used Enterprise Service Bus in their recent projects are German (100%), English (97%), and French (21%).
The most common industries among freelancers in Germany who have used Enterprise Service Bus in their recent projects are Information Technology (100%), Automotive (59%), and Banking and Finance (59%).
The most common business areas among freelancers in Germany who have used Enterprise Service Bus in their recent projects are Information Technology (100%), Product Development (86%), and Project Management (79%).
Main locations of FRATCH Experts, who have recently used Enterprise Service Bus
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
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Philipp Thomaschewski
FRATCH CEO
