XML Experts in Essen
to structure critical data with fast, precise AI matchingHire experts who design robust schemas, transform XML with XSLT and connect systems through SOAP or XML-based APIs. FRATCH matches you quickly with vetted, available freelancers who fit your technical requirements.
Meet FRATCH Experts in Essen, who have recently used XML
Humayun S.
Last position:
Senior Test Manager - Lead at Star Finanz GmbH
- QA Lead for end-to-end quality assurance of the Sparkasse & Sparkasse Business banking apps (iOS/Android); design and implementation of the Test Strategy including functional testing, regression testing, and UAT for eID, Push Notifications, and white-label components
- Creation and maintenance of test concepts and test plans in TestRail; structured Defect Management and error analysis; stakeholder management and risk management for the early identification of critical quality risks
- Accessibility Testing according to WCAG 2.1 (iOS/Android); coordination of AI-supported test automation and optimization of test processes to shorten release cycles
- Release Management: planning, management, and coordination of all test activities; status reporting to management and stakeholders; quality assessment of releases and release recommendations in an Agile/Scrum environment
- Challenge: Highly complex build and release process across several Sparkasse institutions; close coordination with the DevOps team to stabilize the CI/CD pipeline and ensure reproducible test builds before every release.
Tools: Jira, Confluence, TestRail, Android Studio, Xcode, Firebase, Jenkins, GA4
- Success: Successful launch of the eID authentication process - quality assurance ensured for 50+ Sparkasse institutions
Hervé T.
Last position:
Senior Data Engineer at Schweizerische Post AG
Tools: Fabric, AWS, dbt, Power BI, SQL, DWH, R, Python
- Supported customers in implementing an architecture design for extracting and preparing data
- Planned the design and implementation of the BI and DWH platform
- Ensured the scalability and performance of the data platform
Jens S.
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Henok A.
Last position:
Founder and Managing Director at Afworki GmbH IT-Consulting
The goal of Afworki GmbH IT-Consulting is to make small and medium-sized companies more competitive by overcoming challenges in digitalization, automation, and data management.
Tailored technology, strategy, and specialist consulting designed to meet the individual needs of each company.
Analyzing the company's current situation and developing the best possible solution together with the client.
Using both agile and classical IT project management methods to deliver projects on time and within budget.
Focusing on automating and orchestrating all data flows in a data warehouse to create a unified and standardized data foundation.
Considering the dependencies between IT and business to achieve sustainable positive effects.
Employing modern strategies and tools specifically tailored to the company's needs.
Supporting digitalization, the introduction of agile working methods, and the creation of up-to-date reports and analyses.
Objective: streamlining management and enabling well-founded, data-driven decision-making.
Mike H.
Last position:
IT-Consultant & Founder at QFITS GmbH
In my role as Managing Director of QFITS GmbH, I support companies throughout the entire project cycle - from requirements gathering and process analysis to the design of suitable system solutions and all the way to implementation and quality assurance. My focus is on the introduction and integration of POS and ERP systems as well as their seamless connection to existing backend systems and interfaces.
Direct food sales (09/2025 – 05/2026) Support of a project from requirements analysis to the introduction and integration of a new POS system for a direct food sales company. A special focus was on archiving POS logs as well as preparing and providing them as transactions for connected surrounding systems. In addition, design and setup of functional tests and performance tests for the existing backend system, which had to be seamlessly integrated with the POS system.
Musa M.
Last position:
Qa Engineer at TD Bank
- Designed and implemented an automation test framework using Junit and Maven, developing BDD scripts with Cucumber and reusable methods for application behavior.
- Created test data using automation scripts with Selenium WebDriver, Java, and Python, validating UI components, popup windows, and mouse movements.
- Conducted API functional testing of RESTful web services using Postman.
- Automated test execution using Maven and integrated with Jenkins, achieving a 20% reduction in regression testing time.
Marcel D.
Last position:
Software Developer / IT Tester at Continentale Krankenversicherung a.G.
Analysis, online COBOL software development and testing of dialog and batch programs in the Kranken Leistung (KL) project
Error analysis, bug fixing and ticket resolution (change requests and defects)
Documentation in collaboration with the contact office and the mathematics department
IT skills: Siemens Fujitsu BS2000, CCOM Emulation, Micro Focus Visual COBOL I and II, Eclipse IDE, UDS database system, Atlassian Confluence and Jira, ZULIP, UNIFY
Mustafa K.
Last position:
Consultant (MBR Designer) at Bayer AG
Introduction of an MES system in pharmaceutical production.
Support in replacing existing recipes by introducing an MES system.
Focus on converting cleaning and manufacturing AKBs into MBRs.
System environment: Werum PAS-X MES, GMP, SAP, Microsoft Office (Word, Excel), XML
Stefan W.
Last position:
Project team member at Environmental service provider
- Implementation and maintenance of an order management system
- RDBMS Oracle 19c
- Oracle Forms/Reports 12c/14c
- Oracle SQL
- XML processing
Kamran A.
Last position:
Product Owner Application & Platform at Hoffmann Group
- Manage Sprint & Products Backlog
- Participate in Scrum ceremonies
- Define Definition of Ready and Done
- Define & drive Products vision, strategy & roadmap
- Collaborate & coordinate with cross functional teams
- Administration & Configuration of Atlassian Tools (Jira, Confluence, Jira Service Management, Trello, Bitbucket & Atlas)
- Administration of ServiceNow
- Training users with best practices
Christian F.
Last position:
Deutsche Post DHL Group
- Leadership development training
- ITIL
- Prince2
Discover over 15,000 top freelancers
Statistics of experts using XML
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 23 years)
Position duration
1.6 years (Germany: 5.2 years)
Positions per freelancer
17 (Germany: 16)
Top business areas
Information Technology, Project Management, Quality Assurance
Top industries
Information Technology, Manufacturing, Retail
Certification focus areas
Information Technology, Quality Assurance, Project Management
Bachelor's degree or higher
91% (Germany: 88%)
Master's degree or higher
36% (Germany: 53%)
Doctorate
9%
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 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Essen 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 Essen 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
XML 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 (91%)
- Manufacturing (64%)
- Retail (64%)
- Automotive (55%)
- Banking and Finance (45%)
- Transportation (45%)
- Government and Administration (45%)
- Energy (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Structured data
XML, or Extensible Markup Language, stores and exchanges structured information in a format that both people and software can read. Companies use it for configuration files, document workflows, product data, invoices, publishing content and messages between applications. Its explicit tags and validation rules make complex business data easier to interpret across systems.
Schemas and validation
Reliable XML work starts with a clear information model. Professionals define and maintain DTDs, XML Schema Definition (XSD) files and namespaces so that documents remain consistent as systems evolve. They also validate payloads, handle encoding correctly and establish rules for optional, repeated and nested elements.
- Model XML documents and namespaces
- Create XSD-based validation rules
- Review malformed or inconsistent payloads
- Document structures for business and technical teams
Transformation tooling
XSLT converts XML into HTML, text, other XML formats or application-ready documents. XPath expressions select and process precise parts of a document, while XQuery supports more advanced searches across XML collections. Strong specialists also work with parsers, serializers, Java, .NET and command-line validation tools.
Integration work
XML remains important in enterprise integration, especially where systems depend on SOAP web services, WSDL contracts, message brokers or established industry formats. Freelance expertise helps when teams must connect ERP, CRM, logistics, publishing or public-sector systems without breaking existing interfaces. In Essen, on-site workshops can complement remote delivery for complex integration projects.
- Map XML between legacy and modern systems
- Build or consume SOAP services
- Test WSDL contracts and message flows
- Migrate XML data into APIs or databases
When to bring in specialists
Companies often need focused XML expertise during a system migration, interface rollout, schema redesign or production incident. A specialist can trace namespace and encoding errors, improve transformation logic, assess undocumented formats and create repeatable validation tests. This is useful when internal teams understand the surrounding product but lack time for detailed document and integration work.
Quality indicators
A strong XML professional asks which systems produce and consume each document, which schemas are authoritative and how backward compatibility is managed. They separate business rules from transformation code, test edge cases and explain trade-offs clearly. Look for practical experience with versioned schemas, secure parsing, large documents, error handling and the adjacent platform that owns the integration.
Frequently asked questions
Curious about XML? Here are the answers that come up again and again.
XML is used to represent structured data and exchange it between applications, organizations and technical platforms. Common examples include configuration files, SOAP messages, document publishing, product catalogs, invoices and industry-specific data formats.
XML supports attributes, namespaces, mixed content and formal validation through XSD, which can suit complex or regulated document structures. JSON is often simpler for web APIs and lightweight application data, so the right choice depends on existing interfaces, document requirements and compatibility constraints.
A strong XML specialist may also work with XSD, DTD, XPath, XSLT, XQuery, SOAP and WSDL. Useful surrounding skills include Java or .NET, REST APIs, message brokers, databases, automated testing and secure parser configuration.
The required depth depends on the task. A simple transformation may need focused XSLT and XPath knowledge, while an enterprise migration or SOAP integration calls for experience with schemas, namespaces, versioning, error handling and the connected business systems.
XML projects are often suitable for remote collaboration because schemas, transformations and test payloads can be reviewed in shared repositories. On-site sessions in Essen may help when teams must map undocumented interfaces, inspect internal systems or align several business stakeholders.
Provide sample documents, schema files, transformation rules, interface contracts and a clear description of the systems involved. It also helps to state the required output, compatibility constraints, security expectations and how success will be tested.
Ask the specialist to explain namespace handling, validation strategy, malformed input, encoding and backward compatibility. High-quality XML work includes readable structures, automated tests, clear error messages and documentation that another professional can maintain.
XML remains relevant where established enterprise interfaces, formal contracts or industry document standards are involved. New projects may choose JSON or another format for some services, but replacing XML is not always practical when existing partners and core systems depend on it.
The average hourly rate of freelancers in Essen, Germany who have used XML in their recent projects is 96 €, which corresponds to a daily rate of about 768 € based on an 8-hour working day.
Of the freelancers in Essen, Germany who have used XML in their recent projects, 91% hold at least a Bachelor's degree, 36% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Essen, Germany who have used XML in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Essen, Germany who have used XML in their recent projects are German (100%), English (100%), and French (36%).
The most common industries among freelancers in Essen, Germany who have used XML in their recent projects are Information Technology (91%), Manufacturing (64%), and Retail (64%).
The most common business areas among freelancers in Essen, Germany who have used XML in their recent projects are Information Technology (100%), Project Management (82%), and Quality Assurance (73%).
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 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
