XML Experts in Stuttgart
matched in minutes from 15,000 CVs with the power of AIHire experts who structure data with XML, design XSD schemas, write XSLT and XPath, and support document-heavy integrations with ERP, publishing, and enterprise systems. Fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Stuttgart, who have recently used XML
Sercan Tatar
Last position:
Co-Founder & Lead Software Architect at Pflege-Pfad
- Focus: system architecture, cloud-native platforms, microservices, API design
- Product: Pflege-Pfad is a digital matchmaking platform that connects relatives of people in need of care directly with verified care services and caregivers - without an agency and without ongoing fees.
- Business analysis & process design:
- Analysis of the German care market and identification of the key pain points of both target groups.
- Modeling of the core business processes: registration, verification, care request, application, placement, and rating.
- Definition of the business model as a freemium/premium model with optional contact unlocking.
- Creation of user stories and requirements documentation for relatives, care services, and administrators.
- Design of trust and quality assurance mechanisms with document upload, admin review process, and rating system.
- Coordination with stakeholders and validation of product decisions with potential users.
- Technical implementation:
- Design and implementation of the entire platform architecture as a solo developer.
- Design and implementation of a REST API with Spring Boot and Kotlin, including JWT-based authentication.
- Development of the frontend as a single-page application with Angular 17.
- Implementation of the AWS infrastructure with EC2, RDS PostgreSQL, S3, CloudFront, and IAM.
- Document upload with AWS S3 via presigned URLs for verification of care services.
- Email notifications via Resend API.
- AI-supported care service search via OpenAI API.
- Implementation of complete user flows such as registration, login, password reset, and placement process.
- Building an admin panel for user and care service management as well as analytics.
- CI/CD with GitHub Actions and containerized deployments with Docker.
- End-to-end tests with Playwright.
Technologies: Kotlin, Spring Boot 3, Spring Security, JWT, JPA/Hibernate, PostgreSQL, Angular 17, TypeScript, RxJS, AWS (EC2, ECS, S3, CloudFront CDN, RDS PostgreSQL, IAM), nginx, GitHub Actions, Playwright, Maven, Git, OpenAI API, Resend API, Docker, Scrum, i18n (DE/EN/TR), Kiro, feature-flag architecture.
Wael Mansour
Last position:
Test Manager at Schwarz IT
- Design, planning, and test case analysis
- Integration testing
- Coordination of UAT in the lab and on site
- Creation of HW and SW test catalogs
- Communication of test results from REST services with the SAP team
- Support for branches in the EU until rollout
- Coordination of defect management and SW updates with the involved vendors
- Checking the configuration of the charging stations in the backend software for different countries
- Continuous reporting of the quality status to project management
- Documentation of the user manual in English and German
- Tools: Confluence, be.Energised, OCPP Postman, OPI, CCV (payone.elavon), Excel, it4you
Carlos Medina
Last position:
Implementation in Pimcore/Shopware
- Consulting, design, analysis, software architecture and development
- Designing, developing, and implementing a Pimcore environment and connecting multiple external API systems in a Kubernetes environment, as well as various PIM and ERP systems
- Technologies: Unix environment, design, Symfony development, PHP 8+, software architecture, MySQL/SQL, shell scripting, Git DevOps tasks, AI coding support, Pimcore 12, Shopware 6
- Team size: >10 people
Robin Sadlo
Last position:
Senior Cloud & Backend Engineer at Media-Saturn-Holding GmbH
- Implementing applications with Kotlin and Ktor as microservices
- Using MongoDB in the MongoDB Atlas cloud
- Asynchronous communication of services via Google Pub/Sub
- Using Kotest and MockK for unit tests
- Developing an administration frontend with TypeScript, React and Express.js
- Provisioning environments in GCP using Terraform
- Implementing CI/CD processes with GitHub Actions
- Operating scalable production and test environments in GCP with Kubernetes, Helm and Flux CD
- Monitoring environments with Prometheus and Grafana
- Providing BI data in the Google BigQuery data warehouse
Lothar Hinsche
Last position:
Solution Manager for PoC investigation and for replacing and refining an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigating the PoC and replacing and refining an existing cloud and IoT power plant control solution for certificate management of renewable energy plants (solar, wind, biomass, etc.) for the largest European renewable energy network operator, including examining the field IoT devices and their integration and network connections, aiming for 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 & Confluence
- Evaluation of pub/sub message streams for MQ and Kafka.
- Various tests with “best design approaches” for resilience patterns like circuit breaker designs, throughput measurement and monitoring, bulkhead governors – for robust EA design
- Integration of API management with IBM's API Connect to Kubernetes for platform-agnostic microservices API management designs. Google Apigee
- Solution health check approaches for load burst situations + remedy
- Research and evaluation of potential sub-service providers in the coordinating role as solution manager. CIS20 controls.
- DREAD and STRIDE security assessments.
Ronald Foerster
Last position:
IT Consultant & Training at Various Small Projects & AI Training
- Development of multiple websites for small businesses (6)
- SEO/SEM
- Business Consulting (Implementation of ERP systems (Fresha / MS Dynamics))
- AI Tooling, Prompting & Coding
- GenAI Chatbot (GPT 4.0)
- Creation of a telephone agent (NLP services, Twilio, Python, Azure Services)
- Python coding, report & dashboard creation
- Stakeholder management and consulting throughout the project lifecycle
Training and Certifications in AI:
- Microsoft Azure AI Fundamentals
- Develop Gen AI Solutions with Azure Open AI Service
- Designing and Implementing a Microsoft Azure AI Solution
- Artificial Intelligence for the Business Professional
- Generative AI for the Business Professional
- Certified Artificial Intelligence Practitioner
Christian Bloch
Last position:
Principal Consultant (Self-employed) at BLOCH IT-Consulting
- Consulting services for Enterprise Service Management (Strategic Planning, Requirement Analysis, Tool evaluation process, implementation)
- Project management for ITSM tool implementations (Cloud, On-Premise)
- Optimization and maintenance of Ivanti Service Manager installations (User acceptance, efficiency, workflow configuration, CDMB structure, process automation, non-IT areas, roadmap planning, release upgrades)
- Presales support for Ivanti Service Manager (Product demonstrations, Proof of Concepts/POC, technical concepts)
Zouhair Hamama
Last position:
SAP S/4 HANA Developer at BGZ Essen
- Explorer phase: document preparations for development
- Getting started with the BTP documentation
- Documentation of WRICEFs
- Programming guidelines with consideration of Clean Core
- Analysis of customer programs to be migrated
- ABAP call monitoring (SCMON, SUSG)
- Creation of concept documents for the project
Ahmed Fikri
Last position:
Senior Lead Engineer (Freelance) at Atruvia AG
- Development of a wealth management application for investing in foreign currencies
- Full-stack development with Angular, Spring Boot, OpenShift, Oracle DB, Kafka
- Design and implementation of a microservice architecture
- Integration into Atruvia's BWS system and connection of multiple interfaces between Atruvia and DZ Privatbank
- Greenfield development of the application from the ground up
- Technical responsibility for architecture and interface design
- Close collaboration with business units and external stakeholders
Elvir Büyükbayrak
Last position:
Software Architect and Software Developer at Noctica IT GmbH
- NocTime time tracking, workshop planner, meal delivery service app
- LLM-based chat bot to control the NocTime time tracking system via voice input
- New and further development of customer solutions based on the Noctica SAS app framework
- Technologies: Java 17, Spring Boot, JPA, Hibernate, JavaScript, TypeScript, Angular 20, Angular Material, React, C#, Docker, Bash, Git, GitLab, RedMine, SQL, DBeaver, MariaDB, PostgreSQL, Python, TensorFlow, Ollama, various LLMs
Erol Tel
Last position:
Continental AG
- Analyze and fix data flows between PMD and SAP HR/S4 systems using SAP PI/PO and ABAP, especially in the HR area.
- Provide integration services by developing, customizing, and troubleshooting issues in custom interfaces and processes.
- Participate in technical and functional discussions to align the HR system architecture and integration strategies.
- Ensure system stability and data accuracy by proactively identifying and resolving integration issues to contribute to ongoing project success.
- Transfer HR data via OData service to SuccessFactors ABAP-OO report: access LDAP user data alongside SAP user data and update the email address and Windows ID in SAP.
- S/4 HANA, ABAP/4, ABAP-Object, S/4 HR, FI, SoapUI, Postman, REST API, JSON.
Gerhard Wisst
Last position:
Self-employed Software Developer at Self-employed Software Developer
- OpenStreetMap integration for a logistics system at PTV Transport GmbH
- worked on portal software
- webshop system in PHP with login, shopping cart, order management, and PDF invoice module (AdminLTE)
- cashbook application for income-expense management (including export functions)
- helpdesk system with ticket management, user roles, and automatic notifications
Harald Bergmann
Last position:
Software Architect at Amoria Bond
- Developed gateway demonstrator
- Defined system requirements for topology and data concentrator
- Designed zonal controllers for Leoni
Michael Schick
Last position:
Consultant, Architect, Developer at Self-employed
Discover over 15,000 top freelancers
Statistics of experts using XML
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 24 years)
Position duration
2.3 years (Germany: 5.2 years)
Positions per freelancer
17
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
42% (Germany: 54%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 97%)
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 Stuttgart 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 Stuttgart using XML
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
XML Basics
XML, or Extensible Markup Language, is a structured text format for data and documents. It is used where systems need clear tags, stable structure, and human-readable files. Teams hire specialists for interfaces, content feeds, configuration, and long-lived data exchange.
Where It Fits
- API payloads and message exchange
- Configuration files and build descriptors
- Publishing, catalogs, and technical documentation
- Industry and enterprise integration
XML often appears in older but critical landscapes, as well as in current tools that still rely on it. In Stuttgart, it is common in manufacturing, mobility, publishing, and enterprise IT, where reliable data formats matter.
Core Skills
Strong XML professionals work beyond simple tagging. They understand namespaces, validation, character encoding, and document structure. They also know how XML relates to XSD, XPath, XSLT, DTD, SOAP, and RSS, and they can read complex schemas without losing track of business meaning.
Tooling And Standards
A good XML setup usually includes schema design, transformation logic, and validation checks. Specialists may work with editors, parsers, integration middleware, and XML-aware search or publishing tools.
- XSD for strict validation
- XPath for precise node selection
- XSLT for document transformation
- SOAP where legacy web services remain in use
When To Bring In Experts
Companies usually bring in freelance XML specialists when systems need cleanup, migration, or safer integration. Common tasks include fixing broken schemas, converting legacy feeds, documenting message structures, or aligning XML with JSON-based services.
They are also useful when internal teams know the business system but not the format details. A strong specialist spots structural issues early and keeps downstream systems from failing on small markup mistakes.
What Good Work Looks Like
Good XML work is strict and readable. Documents stay valid, namespaces stay consistent, and transformations produce predictable output. The best specialists write clear schemas, keep naming disciplined, and make files easy for other teams to maintain.
If your team works on-site in Stuttgart, a freelancer should be comfortable with local stakeholders and legacy system owners. Remote work also fits well when requirements, sample files, and validation rules are clear.
Frequently asked questions
Not sure where to start with XML? These answers cover the essentials.
XML is used to structure data and documents where strict tagging matters. Companies use it for system integration, content exchange, configuration, publishing workflows, and legacy interfaces that still sit at the center of daily operations.
XML is better when document structure, validation, and mixed content matter more than compact data exchange. JSON is often simpler for modern APIs, but XML still wins in workflows that depend on XSD, XPath, XSLT, or long-established enterprise standards.
A strong XML specialist usually knows XSD, XPath, and XSLT, plus how to work with namespaces and validation. Depending on the project, SOAP, schema migration, publishing tooling, or middleware integration can also matter.
A small cleanup task may need only a focused XML specialist, while integration or migration work needs deeper schema and transformation experience. The more systems depend on the documents, the more important it is that the expert can trace structure, rules, and edge cases end to end.
Most XML work can be done remotely if the freelancer has sample files, schemas, and clear business rules. On-site collaboration in Stuttgart helps when the documents are tied to local teams, internal systems, or legacy owners who need fast feedback.
A strong XML freelancer can explain why a document is valid or broken, not just patch it. Look for careful use of namespaces, clean schema design, reliable transformations, and the ability to keep complex structures understandable for other experts.
Yes, XML is still relevant where standards, validation, and document-centric exchange matter. New systems may use JSON at the API edge, but XML often remains essential for feeds, enterprise integrations, and regulated or legacy environments.
Before you bring in a XML specialist, gather sample files, schema definitions, transformation rules, and any failing test cases. Clear examples make it easier to spot whether the issue is in the markup, the mapping logic, or the surrounding system.
The average hourly rate of freelancers in Stuttgart, Germany who have used XML in their recent projects is 92 €, which corresponds to a daily rate of about 736 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used XML in their recent projects, 100% hold at least a Bachelor's degree and 42% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used XML in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Stuttgart, Germany who have used XML in their recent projects are German (100%), English (100%), and French (43%).
The most common industries among freelancers in Stuttgart, Germany who have used XML in their recent projects are Information Technology (100%), Automotive (64%), and Banking and Finance (57%).
The most common business areas among freelancers in Stuttgart, Germany who have used XML in their recent projects are Information Technology (100%), Product Development (86%), and Quality Assurance (71%).
Main locations of FRATCH Experts, who have recently used XML
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 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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Philipp Thomaschewski
FRATCH CEO
