SOAP Expert
for secure enterprise integrations, matched in minutes from over 15,000 CVs with the power of AIHire experts who design XML web services, connect WSDL-based APIs and modernize legacy integrations while preserving reliable business processes. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts who have recently used SOAP
Michael H.
Last position:
Interim Head of IT / Transformation Manager at A German medium-sized industrial distributor, B2B e-commerce
Agile Transformation: introducing agile principles and transforming traditional IT departments into Scrum and Kanban teams
IT Operating Model: redesigning the IT organization and introducing modern delivery structures and roles
Flight Levels: building up Flight Levels practices within IT to align strategy, coordination and operational execution
Leadership & Coaching: recruiting Agile Coaches and coaching Scrum Masters and IT leaders
ERP Operations: acting as Interim Product Owner for the existing ERP landscape and ensuring business continuity
ERP Transformation: reorganizing and supporting the ERP migration as a Project Manager; Phase 1 (financial accounting) live since October 2025
Operational Core (ERP): establishing dedicated teams for ERP Support, Feature Development, and ERP Migration
Modern Workplace: initiating the transition towards a Microsoft 365-based cloud workplace environment
Integration: establishing a dedicated team to drive integration and connectivity initiatives
Warehouse Operations: building a cross-functional team to support logistics and warehouse-related capabilities
Maintenance & Operations (M&O): introducing a dedicated team for system engineering, security, stable operations and continuous improvement
AI Initiatives: identifying and promoting practical Artificial Intelligence use cases across the IT department
As Interim Head of IT for a German medium-sized industrial distributor, I am responsible for 31 IT employees and lead the digital and organizational transformation, reporting directly to executive leadership. I took over an IT department with almost no basic structures – no clear roles, processes, documentation or ticket system – and with significant technical debt that tied up most of its capacity. Introduced agile principles and ways of working in the IT organization and transformed the traditionally structured IT department into cross-functional Scrum and Kanban teams focused on transparency, collaboration, and customer value delivery.
Redesigned the entire IT organization by establishing a modern operating model, introducing new roles such as Product Owner, Scrum Master and Solution Architect and strengthening the organization through strategic hiring and targeted capability development. Recruited and onboarded Agile Coaches to accelerate the transformation and personally managed and coached Scrum Masters as well as IT department leaders to foster servant leadership, self-management and a culture of continuous improvement.
Aligned IT-internal planning across eight teams to three Flight Levels based on Klaus Leopold (strategy, coordination, team), laying the foundation for later company-wide portfolio management. Consolidated the backlog of more than 10 workstreams and prioritized it by business value and cost of delay. Introduced a ticketing system to increase transparency and enable data-driven decision-making, flow-based work management, and greater accountability at all levels.
Established and supported multiple cross-functional teams, including the Operational Core (ERP) domain with dedicated streams for Support, Feature Development and ERP Migration, as well as teams responsible for Warehouse Operations, Maintenance & Operations (M&O) including system engineering and security, Modern Workplace, Data Quality and integration initiatives. Worked closely with Agile Coaches to support team development, remove impediments, and continuously improve delivery effectiveness.
Acted as Interim Product Owner for the operation and enhancement of the existing ERP landscape while supporting the ERP migration as a Project Manager. Reorganized the project organization and had the already negotiated contract with the implementation partner realigned with a focus on approach and overall responsibility; Phase 1 (financial accounting) has been live since October 2025. Collaborated with the selected implementation partner to design and establish the project organization and target operating model for the ERP transformation, introducing agile delivery structures and ways of working. Facilitated the alignment between business, IT and the external vendor and played a key role in negotiating the contractual framework and delivery model to ensure a sustainable foundation for the transformation program.
Initiated the strategic modernization of the workplace environment through the adoption of Microsoft 365 cloud capabilities, establishing the foundation for enhanced collaboration, scalability and future digital services.
Launched AI initiatives to identify practical business use cases and promote the responsible adoption of Artificial Intelligence across the IT department. Encouraged self-management and empowered teams to take ownership of decisions, delivery and continuous improvement.
Robert D.
Last position:
Java Software Architect at adesso insurance solutions GmbH
Patrick M.
Last position:
Product Owner at Telefonica Deutschland GmbH
- Introduction of service management
- Optimization of processes
- Introduction of an agile way of working
- Introduction and configuration of Atlassian Jira Service Management
- Prioritization of features
- Coordination with stakeholders and the business department
- Management of the backlog and creation of user stories
- Budget management
- Coordination of a Scrum team
- Use of Atlassian Jira and Confluence
- Use of Microsoft Teams
- Working according to Scrum and Kanban
Silvia B.
Last position:
Business Consultant - Product Management Banking at Aareal Bank AG
- Focus on optimizing and further developing the internal customer EBICS application
- Functional and technical consulting for Aareal First Financial Solutions AG on EBICS standard products and applications in the areas of operations and further development, as well as project-related communication with external development partners and the product manufacturer to implement the corresponding technical optimizations
- As the functional coordinator, providing advice on content-related and regulatory requirements as well as technical prerequisites and requirements, and bringing these together at the functional level
- Consulting on the use of EBICS formats
- Reviewing the current EBICS standard for optimization and further development potential
- Analyzing the current state to identify development potential and deriving appropriate recommendations for action while considering regulatory requirements
- Conducting EBICS tests throughout the project
- Functional responsibility for requirements management and, in this context, recording and documenting requirements for such tests
- Designing a functional and sustainable test management system
- Conducting and evaluating tests
- Consulting on sustainable quality assurance and audits
- Project language: German and English
- Tools/Methods: MS Project, MS Office, MS Visio, TestRail, Confluence, Jira, Business Logics Bankkrecher, Business Logics Test Data Generator, Business Logics Banking Tool, Business Logics Test System, DBEAVER, Squirrel, Unix Virtual Machines, WinSCP, Kitty, Putty, various Aareal Bank products, Online Banking Portal, Aareal Sign, core banking system, SAP Blue Eagle, SAP RE-FX, Aareon Wodis Sigma, Haufe Real Estate Wowinex, GAP Group Immotion, UTS Karthago, SAP IS-U/Waste, SIV kVASy, various EBICS clients
Joaquim L.
Last position:
SAP Senior ABAP Developer
SAP Data Migration Greenfield QM
In the QM module project, the focus was on migrating inspection plans and transferring Dynpro applications from the ECC system to the HANA system while adhering to development guidelines and clean code principles. The project involved the use of technologies and concepts such as ABAP Objects (ABAP OO), Clean Code practices, SMOD/CMOD enhancements, User Exits, Function Exits, BAdIs, interfaces, and classes. Writing complex reports for download and upload of change pointer information of inspection plan header.
Onur K.
Last position:
Project Manager & Outsourcing Manager at SENEC GmbH (EnBW Group)
- Built a scalable nearshore IT developer hub (Croatia, Czech Republic, Poland) as an independent company through a BOT model (Build – Operate – Transfer)
- Identified, selected, and managed full-service agencies; introduced management and control mechanisms, including KPIs, SLAs, and regular service reviews
- Prepared and reviewed data processing agreements and framework contracts in coordination with Legal & Compliance; integrated regulatory requirements (including KRITIS) into process design
- Advised on cloud vs. on-premise strategies, data storage, and authorization concepts; supported Procurement with tendering and service provider evaluations
- Managed change and process harmonization between internal teams and nearshore partners; reported to executive management, CFO, and CIO
Result: Scalable IT developer hub with an audit-ready governance model, reduced operating costs, and accelerated product development.
Khalid E.
Last position:
Lead Architect & Developer at kem-consulting
Development of an agent-based governance platform for the automated assurance of EU AI Act compliance and ODA-compliant orchestration of AI services in complex enterprise environments.
Design and implementation of an agent-based "Mission Control" framework (Aletheia Conductor) for autonomous state monitoring and process control.
Development of "Compliance-as-Code" (CaC) solutions based on OPA/Rego for system-wide enforcement of regulatory guardrails.
Integration of TM Forum ODA standards (TMF630, TMF622, TMF642) to ensure interoperability and standardization.
Building a highly available event-driven architecture using Redpanda and CloudEvents v1.0 for near-real-time event processing.
Implementation of an audit-proof "Evidence Chain" through cryptographic linking of trace logs in preparation for automated audits.
Tech Stack: Java 21 (Quarkus Native), TypeScript (Next.js), Redpanda (Kafka API), CloudEvents v1.0, OPA (Open Policy Agent) & Rego, TimescaleDB, ZincSearch, Redis, TM Forum ODA, Git, GitHub, Clean Code Development, Like-C4.
Frank S.
Last position:
Skat Pro at Spiele Palast
Skat Pro
Redesign and modernization of an existing game application for various clients (web and mobile)
Technologies:
- Unity 3D
- C#
- .Net
- WebGL
- Android
- iOS
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
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as frontend framework and Java as backend language
- Use of the Swagger OpenAPI specification for REST communication between frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with web interface and JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts for testing outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to check the REST API of the self-developed software
Emre S.
Last position:
IT Project Manager | SAP E-Invoicing Outbound at Rohde & Schwarz
Project: Introduction of statutory-compliant electronic invoicing (outbound, Germany) in SAP for an international technology group.
- Project management: Planning, steering and reporting of the E-Invoicing outbound rollout across all affected business areas, including budget and resource coordination.
- UAT: Structured user acceptance test with key users per business area, test cases per invoice scenario, and consolidated test results for decision making.
- Defect management: Handover and tracking of defects in Jira, including validation of the generated invoices against the statutory schemas.
- Cutover, go-live and hypercare: Readiness checks and cutover planning aligned with the statutory deadlines, coordination of go-live and stabilization during hypercare.
- Stakeholder management and reporting: Alignment with Finance, Tax, business departments and IT, preparation of status reports and decision papers, and consistent follow-up of open items.
- Change management and documentation: Communicated process changes to the business departments, enabled key users, and created process and compliance documentation to ensure traceability and audit readiness.
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
Guido B.
Last position:
Self-employed Management Consultant and Interim Manager at BCTC Unternehmensberatung Guido Bäcker
Consulting, training and coaching in the financial sector on strategy, organization and IT topics
MorgenFund: Advising the operator of a fund platform on software selection for a sub-ledger "Cash Accounts" based on virtual IBANs (VIBAN)
Structuring requirements, market screening, preparing RfIs, communicating with vendors and conducting the selection process
UniCredit/HypoVereinsbank: Workstream Lead "Booking and Customer Reporting" in the payment transformation project "PULS"
Business analysis, preparing business requirements and coordinating the solution items as part of the functional specification with the bank's IT service providers
Business analysis of SEPA CT and SWIFT MX (.camt-, .pain- and .pacs- formats), change management, team leadership for a virtual team of fifteen line experts and stakeholder management
equensWorldline Germany: Program management for three projects of the SWIFT Service Bureau (CBPR+, ESMIG and Euro1Step1 migration) as part of the SWIFT MX migration
Managing individual project leads with regard to cross-project goals and requirements; reporting to internal and external committees and stakeholders; coordination with dependent projects and programs
Project management/PMO: Interim project management, deputizing for project leads, resource planning, budget and cost management, general PMO activities
Christian P.
Last position:
Project Manager at Kreis Segeberg
- WiNOWiG enhancements (digitalization & organization)
- Project management for the WiNOWiG project (regulatory offenses)
- Process optimization and coordination
Armen M.
Last position:
CTO/CPO Platform & Technology at Green Mobility Holding
- Overall responsibility for platform transformation across ERP, CRM, PIM and AI-supported process automation
- ERP transformation: Introduction and migration to Microsoft Dynamics 365 Business Central
- CRM & Growth Stack: Implementation of HubSpot as the central CRM and platform for lead and marketing automation
- Product data & Commerce Enablement: Introduction of an ePIM to scale Category Management and digital Commerce processes
- AI-supported process automation: Design and introduction of agent-based AI workflows to automate processes in Business Services, Accounting, Tender Management and Marketing
- Building a scalable platform organization consisting of Product Development, DevOps, UX, Cloud Engineering and Corporate IT
- Introduction of modern product and portfolio governance (e.g. OKRs, portfolio boards, value-based roadmaps) to manage technology-driven initiatives
- Harmonization of heterogeneous system landscapes and transformation into a modular, scalable platform architecture (ERP, CRM, PIM, integrated customer journeys)
- Coaching and development of Product Owners, Tech Leads, Delivery Managers and UX teams in building a scalable product organization
Discover over 15,000 top freelancers
Statistics of experts using SOAP
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
3 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
93%
Master's degree or higher
55%
Doctorate
9%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
96%
Based on our profile pool as of 5 Nov 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology 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 using SOAP
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 5 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
SOAP 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 (95%)
- Banking and Finance (56%)
- Automotive (45%)
- Retail (43%)
- Manufacturing (38%)
- Government and Administration (37%)
- Telecommunication (37%)
- Healthcare (35%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What SOAP is
SOAP, or Simple Object Access Protocol, is a messaging framework for exchanging structured information between systems. It commonly uses XML and can run over HTTP, although other transport protocols are possible. Its formal contracts, defined through WSDL, make service behavior explicit and predictable.
Where it is used
SOAP remains common where strong contracts, strict security controls and dependable interoperability matter. It supports integrations across banking, insurance, healthcare, logistics, public administration and large internal enterprise systems.
- Connect customer, billing and ERP systems
- Expose transactional business services
- Integrate systems across vendors and platforms
- Maintain regulated data exchanges
Ecosystem and tooling
SOAP work often includes WSDL, XML Schema, XSD and XML namespaces, along with WS-Security, WS-Addressing and WS-ReliableMessaging. Specialists use tools such as Apache CXF, JAX-WS, Spring Web Services, .NET WCF and enterprise service buses to generate clients, publish services and inspect messages.
Typical project work
Freelance professionals design service contracts, map XML payloads and implement request and response flows. They also configure authentication, certificates, signatures, fault handling, retries and transport settings. Testing may involve SoapUI, contract validation, integration environments and monitoring of production messages.
When companies need specialists
External expertise helps when a company must connect an older platform to modern applications, replace an unstable integration layer or take ownership of undocumented services. It is also useful during migrations, vendor onboarding, security reviews and incidents involving failed contracts or incompatible XML.
- Audit existing WSDL and XSD definitions
- Stabilize integrations and error handling
- Secure messages and transport channels
- Document services for internal teams
What strong professionals bring
Strong SOAP professionals understand both the protocol and the business process behind each message. They can trace faults across application, transport and security layers, explain contract changes clearly and prevent breaking consumer systems. Experience with REST, queues, databases, Java or .NET is often valuable because SOAP services rarely operate in isolation.
Frequently asked questions
Not sure where to start with SOAP? These answers cover the essentials.
SOAP is used to exchange structured XML messages between applications through formally defined web services. Companies rely on it for transactional integrations where contracts, security, fault handling and interoperability are important.
SOAP provides a formal service contract and a broad set of established extensions for security, reliability and transactions. REST is usually simpler and more flexible for resource-oriented APIs, so the right choice depends on existing systems, governance and integration requirements.
A strong SOAP specialist should understand XML, XSD, WSDL, HTTP, TLS and authentication. Knowledge of Java or .NET, relational databases, message queues, enterprise service buses and REST helps with the systems surrounding the service.
The required depth depends on the work. A straightforward client integration may need solid XML and WSDL skills, while a high-risk enterprise migration calls for a professional who can handle WS-Security, certificates, namespaces, versioning and production fault analysis.
SOAP work is often suitable for remote collaboration when the professional can access service definitions, test environments, logs and secure documentation. On-site work may help when systems are isolated, access is tightly controlled or close coordination with operations teams is essential.
Ask the professional to explain a WSDL, trace a failed XML request and describe how they would protect messages. Review their approach to contract testing, fault responses, observability, backward compatibility and documentation rather than focusing only on whether a service responds successfully.
SOAP integrations often fail because of namespace mismatches, incompatible schemas, incorrect headers, certificate issues or poorly handled faults. Timeouts, encoding differences and unclear contract ownership can also create failures that require analysis across several systems.
SOAP remains relevant when a company must integrate established enterprise software or meet formal security and reliability requirements. New services may use REST or messaging instead, but replacing SOAP should be based on business and technical constraints rather than fashion.
The average hourly rate of freelancers who have used SOAP in their recent projects is 95 €, which corresponds to a daily rate of about 760 € based on an 8-hour working day.
Of the freelancers who have used SOAP in their recent projects, 93% hold at least a Bachelor's degree, 55% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers who have used SOAP in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 3 years.
The most common languages among freelancers who have used SOAP in their recent projects are German (97%), English (95%), and French (20%).
The most common industries among freelancers who have used SOAP in their recent projects are Information Technology (95%), Banking and Finance (56%), and Automotive (45%).
The most common business areas among freelancers who have used SOAP in their recent projects are Information Technology (100%), Product Development (89%), and Quality Assurance (65%).
Main locations of FRATCH Experts, who have recently used SOAP
Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Essen In Austria our freelancers and interim experts support companies from Vienna to Graz — on-site where your project needs them, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Vienna Graz 
Zurich Countries:
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