SOAP Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used SOAP
Marijn Scholtens
Last position:
Senior Software Engineer at Puls Security GmbH
Optimizing and acceleration of our Gitlab CI pipeline
Conceptual work for the PoC of the Zero Trust system
Extension of the policy-engine backend in Go
Extension of the policy-testing mechanism in Python
Architectural design of the PEP component of Zero Trust
Documentation of the product
Technologies: Zero Trust, Go, Python, Gitlab CI, Docker, JWT, Domain-Driven Design
Klajdo Fyraj
Last position:
Independent Product Developer / Software Architect at rastr.eu
- Architected and deployed a live B2B geocoding and demographic-data platform for Germany, combining address lookup with census-based population statistics through a web application and REST API.
Thorsten Lenzen
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
Stanislaus Stelle
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
René Tilly
Last position:
Managing Director at Le Shop Vegan
- Shop & ERP system, performance marketing
- Fulfilment: setup & operation of warehouse & shipping
- Finance: control & liquidity planning
Daniel Ubani
Last position:
Senior Application Packaging & Deployment Engineer at Allevio AG (Client: Allianz Technology)
- Enterprise application packaging and deployment for Allianz's global Windows migration programs across Europe, North America, and APAC
- Migrated hundreds of enterprise applications from Windows 10 VDI to Microsoft Azure Windows 365 (Windows 11)
- Created software packages in MSI/MST, FlexApp, PSADT 3/4, and App-V according to enterprise packaging standards
- Developed an ASP.NET packaging automation platform with MongoDB, SQL Server, SharePoint, and Outlook integration
- Built PowerShell modules for automated quality checks of MSI and FlexApp packages
- Developed a release conflict detection module in PowerShell to identify potential deployment issues before production
- Created WDAC monitoring scripts for automated policy oversight and incident response
- Implemented MSGraph API calls in PowerShell for Azure AD and Intune operations
- Created Citrix oData scripts for historical usage analysis (BYOD, VDI, fat clients)
- Developed an Intune Win32 app 'Do Not Disturb' deployment routine for an optimal user experience
- First point of contact for troubleshooting production incidents with packaged applications
- Coordinated application owner, UAT, and release testing for hundreds of deployments
- Administered Microsoft Intune, Citrix environments, and SQL Server security
- Created and tested WDAC policies in Intune; managed configuration policies and Win32 app deployments
- Primary packaging resource for Allianz France since 2019
Dmitry Tarantin
Last position:
Web Software Engineer at Freelancer
Third-side integration development (REST: Amazon, OpenAI, Etsy, Shopware, Prestashop, etc)
Performance optimization (Refactoring, SQL analysis)
LMS development and deployment (Moodle)
Cloud deployment automation (Amazon, Azure, Gitlab CI/CD, Docker)
Backend and Frontend development (Laravel, VueJs)
Collaboration with partner-developers (national and international)
Shirtigo GmbH
GRELLARTIG Digital GmbH
velpTEC edutainment GmbH
Sebastian Chece
Last position:
Public institution responsible for educational institutions in NRW
- Consulting on processes and execution of load tests, performance tests and technical tests of various applications: web portal, file cloud, email, video conferencing, learning/course platform
- Creating the load test framework
- Programming test scripts (JMeter, Selenium)
- Developing batches to support the evaluation
- Executing load tests and evaluating results, including clear reporting, recommendations for action, and bottleneck analysis
- Managing tasks and collaboration to achieve meaningful load test results
Dalia Cananau
Last position:
Oracle Developer at Freelance
- Design and implementation of an OCI-based data warehouse and ETL system to replace legacy mainframe applications
- Developed a database optimization strategy and planned the rapid conversion of JCL and COBOL routines to PL/SQL using AI
- Developed an Oracle Apex-based app for internal administrative processes in the public sector (office equipment, staff training)
- Implemented PL/SQL workflows for approval processes and created a responsive mobile version with JavaScript and CSS
- Used Azure DevOps for backlog management and documentation, and Git for version control
- Developed REST interfaces to CRM systems
- Replaced and reprogrammed Oracle Forms screens with Oracle Apex and updated to the latest Apex versions
- Designed a Git branching strategy and conducted code reviews
- Maintained and further developed an EDI-based data exchange system based on Oracle Advanced Queuing for the public sector in Austria
- Performed data analysis and created charts in the Oracle Apex frontend; installed standalone ORDS and Apex 23.1
- Worked agile using the Spotify model; developed complex Apex pages with support from Oracle JET
- Rebuilt and customized existing PL/SQL packages, created workarounds for database version differences, and optimized queries
- Developed Apex applications for broker pools to manage and optimize Oracle databases in the banking environment, including SSO-based authorization systems with OAuth2 and Keycloak
- Built extensive Oracle Apex applications for BI and data mining modernization projects and developed manual and automated projection methods in the frontend
- Carried out data warehousing projects in the banking sector and used Scrum and Kanban in team projects
Jacqueline Haefke
Last position:
Kitchen Appliance Manufacturer
Setting up and enhancing an international subscription management system
Migrating and decommissioning a Hybris-SAP system and integrating Zuora
Implementing numerous interfaces to various systems (external and internal)
Setting up and improving monitoring with Grafana, Prometheus, and Databricks
Introducing logging with Loki
Implementing business requirements using jQuery, Thymeleaf, Spring Boot, Java, Go, and Python
Adjusting and extending the GitLab CI pipelines
Setting up and extending infrastructure as code with Terraform and ArgoCD on AWS
Setting up and running E2E and performance tests
Expanding the Databricks business intelligence solution to provide various KPIs
Responsibilities: Architecture, DevOps, development, unit tests, coaching employees and apprentices, E2E, smoke, and integration tests, agile methods consulting (Kanban, Scrum)
Technologies and methods: Java, Go, Kotlin, Node.js, Spring Boot, SOAP/REST, Quarkus, Thymeleaf, Vaadin, Slack, Jira, Confluence, IntelliJ, GitLab, SQS, Kafka, AWS, Kubernetes, Terraform, Maven, Gradle, GitLab CI, Databricks
Daniel Münter
- SaaS including subscription management and mobile app
Sara Schönherr
Last position:
Senior Software Developer with a Focus on UI/UX at vGen GmbH
Development of an interactive prototype for the concept of an AI-supported Enterprise Architecture Management tool. The goal was to present complex relationships between IT systems, business processes, and departments in a way that is easy to understand and to support decision-making in the context of IT transformations.
The prototype combined data-driven analyses with guided questions and interactive visualizations. A central part was the integration of a RAG process to provide domain-specific EAM knowledge in context. The focus was on quick idea validation, user-centered interaction design, and the technical feasibility of a scalable overall concept.
Design, implementation, and validation of a RAG process for domain-specific EAM knowledge with Python, LangChain, and graph/vector databases (Neo4J, Milvus)
Business and technical requirements analysis as well as definition of an MVP
Development of the architecture and technology concept using Angular, Spring Boot, GraphQL, and Kubernetes
Design of an interaction concept and creation of a brand style guide with Figma
Development of interactive prototypes with Angular, Konva.js, and TypeScript
Integration of CI/CD processes with GitLab CI/CD
Discover over 15,000 top freelancers
Statistics of experts using SOAP
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 20 years)
Position duration
3 years (Germany: 2.9 years)
Positions per freelancer
11 (Germany: 14)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
90% (Germany: 93%)
Master's degree or higher
70% (Germany: 54%)
Doctorate
30% (Germany: 8%)
Certifications per freelancer
13 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 95%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Dusseldorf are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Dusseldorf 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
SOAP services
SOAP, or Simple Object Access Protocol, is used for structured service-to-service communication over HTTP and other transport layers. It still appears in enterprise systems where strict contracts, XML payloads, and reliable integrations matter. Common search terms also include WSDL and WS-* because they usually sit around the same landscape.
Where it fits
- Legacy enterprise integrations that must stay stable
- B2B connections with formal message contracts
- Payments, insurance, logistics, and public-sector systems
- Systems that rely on XML schemas and strict validation
SOAP is often chosen when a team needs predictable message structure, not lightweight simplicity. It is common in environments that already run Java, .NET, or Oracle-based stacks. In Dusseldorf, it often shows up in integration work around larger corporate IT landscapes.
Tooling and standards
Strong professionals know the contract and the surrounding standards, not just the XML envelope. They work with WSDL, XSD, SOAP headers, fault handling, and WS-Security. They also understand how SOAP services connect to REST, message brokers, and older middleware.
When to bring in help
Companies usually need freelance expertise when an integration is failing, a contract must be extended safely, or an old service has to be documented before changes. A specialist can also help when teams need testing, monitoring, or migration planning around SOAP endpoints. This is common when local teams in Dusseldorf need short-term support without long onboarding.
What good specialists do
A strong expert can read a WSDL and spot design problems fast. They keep request and response models clean, handle namespaces correctly, and avoid breaking downstream consumers. Good professionals also write clear fault handling, version contracts carefully, and document the service for both technical and business teams.
Signs you need one
- Your SOAP calls fail after a schema change
- You need to connect a SOAP service to a newer API layer
- The WSDL is hard to maintain or poorly documented
- Security, authentication, or certificate handling is unclear
- You need remote support with occasional on-site coordination in Dusseldorf
Frequently asked questions
Curious about SOAP? Here are the answers that come up again and again.
SOAP is used for structured service communication where systems need strict contracts and predictable XML messages. It is common in enterprise integration, especially when older platforms, vendor products, or regulated processes must exchange data reliably. Teams often choose it for stable interfaces rather than quick, lightweight APIs.
SOAP is more formal and contract-driven than REST. It typically uses WSDL, XML schemas, and defined faults, while REST is usually simpler and easier to read. If a project depends on strict validation, security headers, or existing enterprise tooling, SOAP can be the better fit.
A strong SOAP specialist usually knows XML, XSD, WSDL, and WS-Security. In Java or .NET environments, they should also understand the framework tools that generate or consume services. Good testing and debugging skills matter too, especially when namespaces or headers cause hidden errors.
A company usually brings in SOAP help when a service is broken, a contract changes, or an integration has to be documented and stabilized. Freelance experts are also useful for migrations between old and new systems, where the SOAP layer must keep working during the transition. They can step in without a long internal ramp-up.
Yes, SOAP often sits next to REST or event-driven services in the same system landscape. Many companies keep SOAP for core back-office functions while exposing newer interfaces for modern applications. A good expert can bridge both worlds without breaking existing consumers.
For many SOAP tasks, remote work is enough because the work centers on contracts, test cases, and integration logic. On-site time can still help when access to internal systems, network zones, or local stakeholders is limited. In Dusseldorf, many teams prefer a mix of remote delivery and occasional on-site sessions.
Look for clear WSDL reasoning, careful XML handling, and practical experience with faults, headers, and versioning. A strong SOAP freelancer explains trade-offs in plain language and can show how they prevent breaking changes. Good documentation and test coverage are also strong signs of quality.
There is no difference: SOAP is the abbreviation for Simple Object Access Protocol. Searchers often use both names, especially when looking for enterprise integration help. In practice, the term usually points to the same XML-based service protocol and its related standards.
The average hourly rate of freelancers in Dusseldorf, Germany who have used SOAP in their recent projects is 96 €, which corresponds to a daily rate of about 765 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used SOAP in their recent projects, 90% hold at least a Bachelor's degree, 70% hold at least a Master's degree, and 30% hold a doctorate.
On average, freelancers in Dusseldorf, Germany who have used SOAP in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 3 years.
The most common languages among freelancers in Dusseldorf, Germany who have used SOAP in their recent projects are German (100%), English (100%), and French (42%).
The most common industries among freelancers in Dusseldorf, Germany who have used SOAP in their recent projects are Information Technology (92%), Manufacturing (58%), and Banking and Finance (50%).
The most common business areas among freelancers in Dusseldorf, Germany who have used SOAP in their recent projects are Information Technology (100%), Product Development (92%), and Quality Assurance (67%).
Main locations of FRATCH Experts, who have recently used SOAP
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.
Request a free demo
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