XML Experts in Hamburg
matched in minutes from over 15,000 CVs with the power of AI.Hire experts who design XML schemas, build safe data exchanges, and keep document-heavy systems reliable across integrations, content pipelines, and legacy platform migrations. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Hamburg, who have recently used XML
Niko Schmuck
Last position:
Developing Architect, Technical Lead "gridlytics" at HH Energienetze
- Building a data integration platform for high, medium, and low voltage assets for contextual analysis of time series with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
- Responsibility for the architecture and implementation of the solution, as well as sparring partner for the Product Owner.
- Use of Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, jupyter, and various API gateways.
Hoa Josef Nguyen
Last position:
AI Architect and Enabler at Inhouse / AI Business
Technologies: n8n, Notion, OpenAI API, Claude, MS AI Foundry, MS CoPilot Studio, MS CoPilot, LLM, Node.js, Vercel, LangGraph, PostgreSQL, pgEdge, pgvector, Docker, LangChain, Ollama, Open WebUI
- Continuous evaluation and prioritization of internal automation needs
- ~20 AI agents in active use: research, content pipelines, document processing
- 5 n8n workflows for automated data and process control
- Architecture built on the same principles as in customer projects: state management, event-driven orchestration, API integration
- Ongoing operation and further development
Guido Bäcker
Last position:
Independent 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, creating 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, creating business requirements and aligning 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 lead 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 managers regarding overarching goals and requirements; reporting to internal and external committees and stakeholders; coordinating with dependent projects and programs
Project management/PMO: interim project management, stand-in for project managers, resource planning, budget and cost management, general PMO tasks
Vinod Goyal
Last position:
Freelancer: SAP MDG Consultant at Logistics service provider
- Support for one of the largest logistics service providers in handling ServiceNow tickets in the areas of SAP MDG, Business Partner (BP), customer and supplier master data
- Technical analysis and resolution of tickets through in-depth review of various database tables
- Creation and maintenance of accounting clerks in the system
- Deactivation of company codes using transports
- Carrying out mass changes with LSMW (Legacy System Migration Workbench)
Marcus Bonfigt
Last position:
Data Engineer at Deutsche Bahn AG via Scoore GmbH
- Development of ETL pipelines with Talend (7/ Enterprise)
- Development/adaptation of database schema/database functions (PostgreSQL)
- Development of GIT CI pipelines
Technologies: Talend Enterprise, Git, PostgreSQL, Dbeaver, SQL, PL-SQL, Liquibase
Dominic Dreiner
Last position:
Senior GEO Strategist & AI Search Consultant at Venmate GmbH
- Industry: SaaS (Customer Success Management) – B2B
Comprehensive GEO implementation (Generative Engine Optimization) for a B2B CSM SaaS startup with a focus on AI Search Visibility and AI Citations in ChatGPT, Perplexity and Google AI Overviews – including a GEO workshop and a prioritized implementation roadmap.
- GEO Workshop & Roadmap: Conceptualized and delivered a GEO workshop (how LLMs work, AI Search Architecture, citation strategies); translated it into a prioritized implementation roadmap with impact/effort estimates
- Technical GEO Foundation: Robots.txt & llms.txt, Core Web Vitals & page speed, XML sitemaps for AI crawlers
- Schema & Structured Data: Gap analysis, implementation of Product/Service, FAQ, Article, Author and Organization schema, validation of coverage
- Content Architecture & GEO: Flat content architecture, topic clusters (pillar-and-spoke), 200–300 word chunks and answer-first content structure, E-E-A-T rollout through author pages
- Query Fan-Out & Prompt Anticipation: User prompt mapping, query fan-out, content gap analysis based on prompt coverage
- Citation & Backlink Strategy: AI citation analysis (news, Reddit, Wikipedia, listicles) and development of outreach and backlink strategies
Tools & technologies: Otterly.AI, PeecAI, Qforia (iPullRank), Schema Markup Validator, OpenAI Tokenizer, Prompt Coverage Monitor, ChatGPT, Perplexity AI, Semrush, Ahrefs, Framer CMS
Aiman Ragab
Last position:
Test Manager and Test Automation Engineer at Warehouse Management Company
- Introduced test management with SolMan
- Implemented test automation with TOSCA
- Analyzed, created, and automated test cases
- Built regression test portfolio
- Stakeholder meetings and alignments
- Financial management
Rainer Diekmann
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
Alex Odesser
Last position:
Contractor at Telefonica Germany GmbH & Co. OHG
- Data-analysis, Preparation, gathering and coordination of business requirements for retrieval of monthly- and long term (CLV – relevant) cost- and revenue-components per contract for a customer–base–grouping project (HUB–Project) for B2C-Postpaid-Controlling
- Concept and Implementation of cost- and revenue-KPIs calculation and corresponding CLV–reports (Oracle, Perl, SVN, MS SQL Server, MS Power BI, Serviceware Performance Analytics)
- Operational support of the HUB-Project – various ad-hoc reports, deployments, job-scheduling etc. (Oracle, SVN, BICSuite–Scheduler, DWSODA etc.)
- Analysis, implementation, retrieval and reporting of various physical and financial KPIs for B2P-Prepaid Business on an existing data-mart (Oracle, Perl)
Hartmut Ullrich
Last position:
Freelancer at Freelancer
Projects at Raiffeisen Software Group (RSG), Linz from 2022-01-01 to 2025-03-31: application development on mainframe with PL/1, DB2, JCL, Tabex; development environment with idz, Jira, Dimensions, Confluence; execution of projects in banking reporting (own funds, capital requirements, large exposures, leverage ratio)
Project at Airbus, Hamburg from 2020-01-01 to 2022-12-31: mainframe system enhancements (TAKSY) in agile environment (Scrum, SAFe); business analysis; technical design; implementation (PL/1, DB2, IMS, JCL); test management; deployment
Matthias Eymers
Last position:
Lead Android Developer at Star Finanz-Software Entwicklung und Vertriebs GmbH
- Further development of the Android app "StarMoney"
- Major XML to Compose redesigns
- Introduction of new technologies and architecture
- Implementation of instant bank transfer
- Development following the agile Scrum process
Sridhar Huple
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
Timo Daedrich
Last position:
External Consultant for E-Commerce and Online Shops at Wörner Medizinprodukte und Logistik GmbH
- Project leadership for the relaunch of the B2B online shop based on SAP Commerce (formerly Shopware 5)
- Coordination of internal and external resources
- Stakeholder management and requirements management
- Support in the functional concept design of features
- Creation of project reports and running SteerCo meetings
- Leading and moderating regular meetings and alignments
- Consulting on the company's e-commerce strategy
- Sparring partner for the Head of E-Commerce
Peter Millitzer
Last position:
Freelance SAP HCM Consultant and Developer at Beiersdorf AG
- Project assignment ended early, further continuation only with own staff.
- Support for payroll Germany, including customizing and program analysis.
- Development of ABAP programs, ABAP OO classes and methods.
- Definition of wage types, attendances and absences, daily programs and shift schedules.
- Adjustment of schemas and rules for payroll Germany.
- SAP HCM 3rd level support according to change requests and incidents.
- Work as a freelancer, part-time, remote.
- Technologies used: SAP R/3 HR Rel. ECC 6.0, PA, PT, PY.
Mariya Harbalieva
Last position:
Freelance Graphic Designer, Typesetter, and Bookbinder at Freelance Graphic Designer
- Automated and semi-automated typesetting, XML typesetting
- Development of graphic concepts and design of various print products
- Project management and book design
- Creation and adaptation of typesetting and style templates, InDesign and MS Office templates
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
3.8 years (Germany: 5.2 years)
Positions per freelancer
19 (Germany: 17)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Professional Services
Certification focus areas
Project Management, Information Technology, Product Development
Bachelor's degree or higher
79% (Germany: 88%)
Master's degree or higher
54%
Doctorate
8% (Germany: 9%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Spanish
Speak two or more languages
93% (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 Hamburg 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 Hamburg 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 in practice
XML is a markup format for structured data and documents. Companies use it to move information between systems, define message payloads, and keep complex content readable for both software and people. It shows up in integrations, publishing flows, and long-lived enterprise systems.
Common work
- Schema design with XSD for strict validation
- Data exchange between internal and external systems
- Content feeds for publishing and commerce
- Configuration files for tools and enterprise software
- Document processing with XPath and XSLT
Ecosystem skills
Strong professionals working with XML usually know XPath, XSLT, XSD, and namespaces. They also handle parsing, validation, encoding, and transformation without breaking downstream systems. When XML sits inside APIs or file-based workflows, they pay close attention to structure and compatibility.
When to bring in help
Bring in freelance expertise when an integration fails, a schema needs cleanup, or a legacy format must be kept stable during change. Teams also look for help when they need to turn messy source data into clean XML for partners or internal platforms. In Hamburg, this often matters in media, logistics, and enterprise IT environments.
What good experts do
Good experts make XML predictable. They write clear schemas, resolve namespace problems, and keep transformations easy to maintain. They also test edge cases such as empty nodes, special characters, and version changes so systems do not break later.
Signs you need XML expertise
- Partner files stop validating
- XSLT output no longer matches the target system
- Imports fail because of namespaces or encoding
- You need to migrate from a legacy format safely
- Your documents are hard to validate or transform
Frequently asked questions
Quick answers to the questions that come up most around XML.
XML is used for structured documents and data exchange where strict formatting matters. Teams rely on it for integration payloads, configuration files, product feeds, publishing workflows, and legacy enterprise systems that still depend on XML documents.
XML is usually chosen when validation, document structure, mixed content, or transformation rules matter more than compact size. JSON is often simpler for lightweight APIs, but XML is stronger when you need XSD validation, namespaces, or XSLT-based processing.
A strong XML specialist usually knows XPath, XSLT, and XSD, plus parsing and validation tools. They should also understand namespaces, encoding, and how XML fits into APIs, ETL flows, or content systems.
The right level depends on the task. Simple file fixes may need only focused XML expertise, while schema redesign, partner integrations, or transformation work usually benefit from a specialist who has handled similar document and system flows before.
Yes. XML work is often remote because most tasks involve schemas, files, transformation rules, and integration tests. For Hamburg companies, on-site collaboration can help when teams need to review older systems, but remote work is usually practical for most delivery.
Look for proof that the person has worked with your exact XML format, not just general data tasks. A good XML freelancer should show experience with validation, transformation, and the target system, plus clear examples of how they handled broken files or schema changes.
XML projects depend on XSD when data must be validated before it moves to another system. XSLT matters when the same source data needs to be transformed into another structure, which is common in publishing, integration, and migration work.
Yes, especially in enterprise environments, partner integrations, and document-heavy workflows. XML remains important wherever strict structure, stable interfaces, or long-lived standards are more valuable than a newer, lighter format.
The average hourly rate of freelancers in Hamburg, Germany who have used XML in their recent projects is 96 €, which corresponds to a daily rate of about 771 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used XML in their recent projects, 79% hold at least a Bachelor's degree, 54% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used XML in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3.8 years.
The most common languages among freelancers in Hamburg, Germany who have used XML in their recent projects are German (100%), English (93%), and Spanish (13%).
The most common industries among freelancers in Hamburg, Germany who have used XML in their recent projects are Information Technology (80%), Banking and Finance (60%), and Professional Services (57%).
The most common business areas among freelancers in Hamburg, Germany who have used XML in their recent projects are Information Technology (97%), Product Development (80%), and Project Management (77%).
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 
Munich 
Cologne 
Frankfurt 
Stuttgart 
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.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
