Enterprise Application Integration Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Enterprise Application Integration
Timo H.
Last position:
Software Developer at Smiths Detection
- Extension of a Swing-based UI for recording Security Restricted Articles during baggage screening.
- Introduction of a new workflow for recording Deboarding Events.
- Extension of the reporting system for Security Restricted Articles and Deboarding Events.
- Implementation using JBoss Wildfly, PostgreSQL, spring-boot 3.x, Java 8/21, Swing, JSF, JAX-RS/Resteasy, Docker, Maven, Kiro.
Carlos M.
Last position:
Implementation in Pimcore/Shopware
- Consulting, design, analysis, software architecture and development
- Design, development and implementation of a Pimcore environment and connection of several external API systems in a Kubernetes environment, as well as various PIM and ERP systems
- Technologies: Unix environment, design, Symfony development, design, PHP 8+, software architecture, MySQL/SQL, Shell Script, Git Dev Ops tasks, AI coding assistance, Pimcore 12, Shopware 6
- Team size: >10 people
Tobias R.
Last position:
M&A IT Project Manager / Cross-functional Technical and Integration Manager at Sandoz AG
- Worked for several M&A projects (Eire, Sunshine C, Coral) in the role of IT project manager and cross-functional technical manager / integration manager.
- Preparation and maintenance of project charters, project change requests and project plans.
- Weekly project status report.
- Preparation of decision papers and steering committee slidedecks.
- Risk & issue management.
- Tracking and managing activities, dependencies and deliverables across all functional IT domains.
- Data migration (planning and execution).
Boian V.
Last position:
Solution Architect at DB InfraGO AG
The Base Services of DB InfraGO form a central data hub between the company’s IT systems. Common Data Services are developed that distribute data from source systems to a variety of downstream systems (via JMS) and make them available (via REST API). The existing service landscape based on TIBCO is being migrated to DB InfraGO’s cloud-native platform.
- Architecture design and implementation for performance-optimized bulk data processing of several million datasets at specific times during the day
- Technical specification and documentation of business requirements
- Integration of various subsystems (including SAP and Salesforce) through the reimplementation of more than 40 microservices based on Spring Boot
- Migration of TIBCO Based microservices from the Enterprise Integration Platform to the Cloud Native Platform using Spring-Boot
- Establishment of a deployment pipeline using GitLab CI/CD, Artifactory, and automated deployment to a Kubernetes environment with the help of ArgoCD
- Definition and implementation of automated unit, integration, and regression tests
Team Size: 9
Technologies/Tools: Java, Spring Boot, ActiveMQ(JMS), JUnit, Tibco Business Works, Gitlab (CI/CD), Kubernetes (Amazon AWS), ArgoCD, postgreSQL, Oracle, Postman, Hoppscotch, openAPI, Sonarqube
Volker O.
Last position:
Senior Consultant at Mediaan Deutschland GmbH
- Program management for the development of an IoT platform on behalf of Deutsche Telekom IoT and 1NCE
- Structuring and coordinating the project teams and stakeholders involved to ensure robust project and decision-making structures
- Coaching project participants on the organization, collaboration, and implementation of the platform initiative
Franz B.
Last position:
Product Development (AI) at Own initiative
AI telephone assistant platform
Claude Code, Google AI Studio, Python, LLM / Voice-AI, PostgreSQL
- Conception and hands-on development of an AI-supported telephone assistant platform (voice AI / LLM) – from idea and architecture to MVP/product.
- Built agentic workflows and full automations with Claude Code and Google AI Studio.
- Also delivered AI-supported work in client engagements: used Claude Code for governance documentation, requirement drafts, and automations.
Tobias S.
Last position:
Project Manager SAP S/4 HANA Public Cloud at TIMETOACT Group
To achieve savings and optimize compliance, apps were restructured in line with the mappings in identity management, restrictions were defined and, above all, costs resulting from overuse were reduced. Communication with stakeholders, validation of authorizations with users and technical implementation in the SAP FI/CO and Sourcing & Procurement modules created significant added value for the group. This also included the corresponding documentation for the auditors.
Olaf K.
Last position:
CIO Advisor・IT Strategy・Tech/IT Due Diligence・Enterprise Architecture・IT Governance・AI Transformation・ex-BCG Platinion at Kiese IT
- -- ENGLISH Version (Deutsche Version unten) ---
Experience
- Ex-BCG Platinion: 14 years as Manager & Chief IT Architect, leading large-scale IT transformations in complex group structures
- 20+ years of C-level consulting across AI/IT strategy, enterprise architecture, IT organization, transformation, M&A due diligence, project recovery, and interim management
- IT leadership experience with cross-functional, intercultural teams of up to 100+ people
- Hands-on background in software engineering, IT architecture, and project management
- Fortune Europe 500 focus; numerous international projects; SME and start-up experience
Core services:
- IT strategy, enterprise architecture (EAM), target architectures and roadmaps
- PE/M&A/carve-out IT/tech due diligence, asset valuation, cost estimation
- GenAI transformation, process automation, and AI governance
- IT reorganization, target operating model (TOM), agile transformation
- IT governance, development and ITSM process optimization (BizDevOps, SAFe)
- Review and recovery of critical large-scale IT programs
- Planning and steering of transformation programs and IT project portfolios
- IT vendor and platform selection (RfI / RfP)
- Coaching & Interim management
Industries (selection): Insurance, financial services & banking, energy & utilities, telecommunications, retail & consumer goods, logistics, media, industry & engineering, healthcare, professional services
Projects (selection):
M&A Buy-side IT/Tech Due Diligence of an Acquisition in the Energy Sector (Utility, Smart Home) — AI-augmented with Anthropic Claude
AI Initiative for LLM-Based Optimisation and Automation of Sales and Billing Processes
Interim management Enterprise Architecture & group target architecture/roadmap development (METRO)
Reorganization: Design and introduction of agile IT target operating model at international wholesale group (METRO)
Design and implementation of agile BizDevOps target operating model (E.ON Grid Solutions)
Platform/vendor selection for renewal of core insurance solution of start-up (ELEMENT Insurance)
Establishment of project assurance capability and review/recovery of critical transformation projects (ERGO)
Enterprise architecture management and development of divisional/solution architectures (Deutsche Post DHL)
Strategic pricing architecture decisions in digital sales application landscape (E.ON Energie)
IT due diligence: Architecture evaluation and monetary valuation of IT assets (ProSiebenSAT.1 Media)
Interim management of group-wide security/compliance programme (ERGO)
Enabling an application landscape for different sales organizations and product structures (E.ON Energie)
Realignment of business/IT strategy and InsurTech platform selection (RfI, RfP) (nexible, ERGO Digital Ventures)
Stabilization/optimization of an agile/SAFe business/IT DevOps landscape transformation (Lufthansa AirPlus)
Process optimization and design/management of digitization and robotics introduction in power plants (RWE Nuclear)
BSS target architecture development for fixed/mobile networks convergence (Deutsche Telekom)
Optimization of IT organization model and methodology in application development and testing (Deutsche Telekom)
Evaluation of fulfillment of a general contractor agreement for run-off/migration of contract portfolios (ERGO)
-- DEUTSCHE Version (English version above) ---
Experience
- Ex-BCG Platinion: 14 years of strategy and implementation of large-scale IT transformations in complex corporate structures (Manager & Chief IT Architect)
- 20+ years of C-level-adjacent IT consulting: IT strategy, enterprise architecture, IT organization, transformation, due diligence, project recovery, and interim management
- IT leadership responsibility for cross-functional, intercultural teams of up to 100+ people
- Solid hands-on experience in software development, IT architecture, and project management
- Focus on Fortune Europe 500, numerous international projects; SME and start-up experience
Industries: insurance · financial services & banking · energy · telecommunications · retail & consumer goods · industry & engineering · logistics · media · healthcare
Services (focus areas):
- IT strategy, enterprise architecture (EAM), IT landscape target visions and roadmaps
- M&A/carve-out IT/tech due diligence, asset valuation, and cost estimation
- GenAI transformation, process automation, and AI governance
- IT reorganization, target operating model (TOM), agile transformation
- IT governance, development and ITSM processes (BizDevOps, SAFe)
- Review and recovery of critical large-scale IT projects
- Planning/steering of transformation programs and IT project portfolios
- IT service provider/platform selection (RfI, RfP)
- IT project management (agile, classic, hybrid)
- Coaching & interim management
Projects (selection):
- M&A buyer-side IT/tech due diligence of an acquisition in the energy sector (utility, smart home) — AI-augmented with Anthropic Claude
- AI initiative for LLM-supported optimization and automation of sales and billing processes
- Interim management of Enterprise Architecture and development of group target architecture in wholesale (METRO)
- Reorganization: design and introduction of an agile IT target operating model (TOM) at an international wholesale group (METRO)
- IT reorganization: introduction of an agile BizDevOps target operating model (TOM) at an energy group (E.ON Grid Solutions)
- Platform selection / vendor selection for renewal of the core insurance solution of a B2B2C start-up (ELEMENT Insurance)
- Process optimization, digitalization, and introduction of robotics in power plants (RWE Nuclear)
- Assessment of fulfillment of a general contractor agreement for run-off/migration of life insurance portfolios (ERGO)
- Business/IT strategy and InsurTech platform selection for a digital insurer/start-up (nexible, ERGO Digital Ventures)
- Enabling an energy application landscape for multiple sales units (E.ON Energie)
- Strategic architecture decisions in price management of a digital sales application landscape at an energy group (E.ON Energie)
- Stabilization/optimization of an agile DevOps IT transformation in business travel and payment management (Lufthansa AirPlus)
- Interim management in a group-wide security and compliance program of a global insurer (ERGO)
- Building project assurance capability as well as review and optimization/recovery of critical IT projects in an insurance group (ERGO)
- Building enterprise architecture management and development of domain and solution architectures for a logistics group (Deutsche Post DHL)
- M&A IT due diligence – evaluation and valuation of IT assets in the media sector (ProSiebenSAT.1 Media)
- Development of BSS target architecture and roadmap for fixed/mobile convergence (Deutsche Telekom)
- Optimization of IT governance/organization and methodology in application development and testing at a telecommunications group (Deutsche Telekom)
Helge B.
Last position:
Solution Architect at Deutsche Bahn
- Responsible for the end-to-end application and integration architecture for the S-Bahn Hamburg maintenance digitalisation program. A highlight is the introduction of robots and permanently installed camera gates to automate vehicle inspections, allowing AI image algorithms to assess the condition of trains during operation.
- Deutsche Bahn has one of the largest SAP PM implementations in the world, which is a central component of this digitalisation.
Waldemar B.
Last position:
Software-Architekt Produktdaten-Management Tool at Ferchau Contract GmbH
- Definition of the software architecture
- Design and development of modules
- Supporting internal employees in the learning and onboarding process
- Tools: SAP CAP / CDS, Java 21, SAP Hana, SAP Business Technology Platform (BTP)
Thorsten L.
Last position:
Senior Security Analyst
- Analysis and remediation of security vulnerabilities in a risk assessment system for energy trading
- System analysis
- Threat modeling
- Decision-making on vulnerability mitigation strategies
- Implementation of vulnerability detection mechanisms
- Security scans
- DevSecOps practices
- Technical environment: Visual Studio Code, JetBrains Suite, MS Threat Modeling Tool, DevSecOps, Git, AWS, DynamoDB, SQL Server, Endur, Snowflake, Orca
- Languages: C#, JavaScript, TypeScript, Python, PowerShell, Bash, Terraform, SQL
Matthias O.
Last position:
IT Project Manager at IT service provider
Implementation of anti-money laundering requirements under AMLA/KYC for an international major bank in Munich
Services provided:
- Clarification of the assignment and definition of the work package structure for the AMLA/KYC implementation project
- AI-supported project planning using a custom AI workflow for project management
- Preparation of the project management plan
- Resource and capacity planning
- Development of collaboration structures between the IT service provider and the bank client
- Agreement on responsibilities (RACI matrix)
- Management of 5 project members (core team)
- Project control, project monitoring, project reporting
- Communications management
- Escalation management
- Stakeholder management (11 stakeholders)
- Permanent member of the Steering Committee
- Project representation internally and externally
- Project reporting and management of decision-making bodies
- Project volume: 506 person-days (development effort)
- Risk management
- Quality management
- Organization and delivery of workshops
Methods: PMI PMBOK, EVM, GWG, DORA, BAIT, KANBAN, AML, AMLR, AMLA, GWG, KYC
IT environment: JIRA, Confluence, Sharepoint, Kantata Kimble, AI LLM Copilot, ChatGPT, anti-money laundering systems (custom-developed and SMARAGD)
Antonio D.
Last position:
Agile Project Manager at Openry GmbH
End Customer: Openry GmbH
E-commerce platform to globally commercialize high-quality Italian artistic productions. Several European shops are already operational and Asian markets soon coming up. My role as Agile Project Manager is to lead the complete team on both the customer and technical side (offshore) including strong strategic consulting, in a continuous delivery approach. As project in a small enterprise, the budget management aspects are particularly challenging, in a quest to deliver the maximum business value with minimal overheads. Technologies: Magento 2, M2E Pro, Linux, Apache, MySql, PHP (LAMP), Stripe
Alexander S.
Last position:
AI Consultant for AI Voice Bot System at Rudolf Hörmann GmbH & Co.KG
- Consultant for system architecture, AI agents & integration, coach for data & process logic, Graph-RAG approaches, security and data protection.
- On-premise AI solutions with high compliance and performance requirements.
- Architecture decisions, operational setup, strategic prioritization & deployment.
- Technologies: LiveKit JS SDK, LiveKit Agents, Web Audio API, JS, AudioWorklet, Loki, vLLM, Zscaler, Docker, Neo4j, MySQL, Python.
- Models: GPT-OSS 20B, Whisper large v3 turbo, Qwen3-TTS.
Yahya V.
Last position:
BTP Integration Engineer at SAP
(Technology)
- Design and implementation of an SAP BTP CAP microservice to consolidate cross-system transactional checks between SAP Sales Cloud (C4C) and On-Premise SAP CRM (05/2024– 06/2025)
- Bi-directional Cloud-to-On-Premise integration enabling real-time validation of Contact lifecycle and open document dependencies prior to record updates (05/2024– 06/2025)
Responsibilities / Deliverables
- development of custom CAP (Cloud Application Programming) services on SAP BTP
- API design, data mapping, and end-to-end integration across C4C (Cloud Runway) and legacy CRM (Traditional Runway)
Discover over 15,000 top freelancers
Statistics of experts using Enterprise Application Integration
Aggregated from the professional profiles of matched freelancers.
Experience
28 years
Position duration
3.4 years
Positions per freelancer
18
Top business areas
Information Technology, Project Management, Product Development
Top industries
Information Technology, Professional Services, Banking and Finance
Certification focus areas
Information Technology, Project Management, Operations
Bachelor's degree or higher
79%
Master's degree or higher
43%
Certifications per freelancer
3
Most common languages
German, English, Spanish
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 Application Integration
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 Application Integration 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 (97%)
- Professional Services (66%)
- Banking and Finance (51%)
- Telecommunication (51%)
- Manufacturing (49%)
- Automotive (43%)
- Transportation (43%)
- Energy (37%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What EAI connects
Enterprise Application Integration, often called EAI, links separate business applications so they can exchange data and trigger processes. It can connect ERP, CRM, finance, supply chain and customer-facing systems without forcing a company to replace every existing application. The result is a coordinated application landscape with clearer data flows and fewer manual handovers.
Core integration patterns
EAI specialists select patterns that suit the systems, data and business process involved. They may use synchronous APIs for immediate responses, asynchronous messaging for resilient processing, or batch transfers for scheduled workloads. Strong designs define ownership, transformation rules, error handling, retries and audit trails from the start.
Ecosystem and tooling
The work spans integration middleware, API management, message brokers and cloud services. Common ecosystems include MuleSoft, Boomi, IBM App Connect, SAP Integration Suite, Microsoft Azure Integration Services and Apache Camel. Specialists also work with REST, SOAP, XML, JSON, webhooks, queues, event streams, identity services and observability tools.
Where companies use it
Companies bring in EAI expertise when applications have grown independently or a major transformation must preserve critical operations. Typical assignments include:
- Connecting SAP or another ERP with CRM, commerce and logistics systems
- Replacing point-to-point interfaces with governed integration flows
- Exposing legacy capabilities through secure APIs
- Moving workloads between on-premises systems and cloud services
- Automating order, billing, fulfilment and customer-data processes
When freelance expertise helps
Freelance specialists add value during migrations, platform selections, merger integrations and urgent delivery phases. They can assess an existing interface estate, define a target architecture, build reusable flows and document operational ownership. In Germany, remote collaboration often works well when access, security reviews and workshops are planned clearly; some programmes still need on-site sessions with business and IT teams.
What strong specialists deliver
Quality is visible in more than a working connection. Strong professionals translate business rules into maintainable integrations, test realistic failure scenarios and protect sensitive data in transit and at rest. They establish versioning, monitoring, reconciliation and support procedures so teams can operate the solution after handover. Clear documentation and practical communication matter as much as middleware knowledge.
Frequently asked questions
Key details about Enterprise Application Integration, drawn from the questions we get asked most.
Enterprise Application Integration is used to connect applications that need to share data or coordinate business processes. Typical examples include synchronising ERP and CRM records, passing orders to fulfilment systems and exposing legacy functions through APIs.
EAI covers the broader discipline of connecting applications, including APIs, messaging, transformation, orchestration, monitoring and governance. An API-only approach may handle service access well, but it does not necessarily address batch exchange, event processing or the operational control of a large interface landscape.
Enterprise Integration work often requires knowledge of API design, data modelling, SQL, cloud services, identity and access management, and message brokers. Useful additional skills include SAP or Salesforce integration, event-driven architecture, automated testing and observability.
EAI projects vary greatly in complexity. A simple interface may need focused middleware and API knowledge, while a multi-system migration requires experience with architecture, data quality, security, release management and production support.
Enterprise Application Integration can often be delivered remotely when systems are accessible and responsibilities are well defined. German projects may still benefit from on-site workshops for process mapping, security approvals or coordination across business and IT teams, while English or German communication can be agreed in advance.
MuleSoft is often considered where API-led connectivity and reusable assets are central, while Boomi, IBM App Connect, SAP Integration Suite and Azure Integration Services fit different ecosystem and operating models. The right choice depends on existing platforms, skills, security requirements, integration volume and long-term ownership.
Enterprise Integration quality is shown through clear interface contracts, reliable error handling, meaningful monitoring and documentation that another team can operate. Ask for examples of failure recovery, testing, security decisions and measurable improvements to process reliability rather than reviewing only successful happy-path flows.
EAI specialists should clarify system owners, data responsibilities, environments, access limits, compliance needs and the expected operating model. They should also confirm whether the assignment covers discovery, implementation, testing, deployment, documentation or ongoing support.
The average hourly rate of freelancers in Germany who have used Enterprise Application Integration in their recent projects is 110 €, which corresponds to a daily rate of about 879 € based on an 8-hour working day.
Of the freelancers in Germany who have used Enterprise Application Integration in their recent projects, 79% hold at least a Bachelor's degree and 43% hold at least a Master's degree.
On average, freelancers in Germany who have used Enterprise Application Integration in their recent projects have 28 years of professional experience, with a single engagement typically lasting around 3.4 years.
The most common languages among freelancers in Germany who have used Enterprise Application Integration in their recent projects are German (100%), English (97%), and Spanish (23%).
The most common industries among freelancers in Germany who have used Enterprise Application Integration in their recent projects are Information Technology (97%), Professional Services (66%), and Banking and Finance (51%).
The most common business areas among freelancers in Germany who have used Enterprise Application Integration in their recent projects are Information Technology (100%), Project Management (91%), and Product Development (74%).
Main locations of FRATCH Experts, who have recently used Enterprise Application Integration
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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