ZUGFeRD Experts in Germany
matched in minutes from over 15,000 CVsHire experts who design hybrid PDF/A-3 invoicing pipelines, ensure EN 16931 compliance, and integrate automated accounts payable workflows into existing ERP environments, rapidly matched via precision AI.
Meet FRATCH Experts in Germany, who have recently used ZUGFeRD
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.
Stefan A.
Last position:
Sole Architect and Developer at Bauernhof-Eis Stangl GbR
Design and implementation of a compact ERP, CRM, accounting, and production-planning platform for a German food manufacturer. The system replaces Rechnung11, self-built Excel sheets, and manual processes for fewer than 10 internal users.
- Designed and implemented the full platform architecture as sole architect and developer.
- Built modules for customer management, B2B order handling, invoicing, production planning, and accounting support.
- Implemented DATEV export, ZUGFeRD/XRechnung e-invoicing, FinTS bank statement synchronization, and GoBD audit trail concepts.
- Used AI-supported workflows for prototyping, test support, and implementation acceleration while retaining full architecture, review, testing strategy, and technical ownership.
Technology: Java 23, Spring Boot 3, Spring Data JPA, Spring Security, Vue 3, TypeScript, PostgreSQL, Flyway, REST, OpenAPI, JWT, TOTP, RBAC, DATEV, FinTS, ZUGFeRD, XRechnung, GoBD, JUnit, Mockito, Testcontainers, Playwright, Docker, GitLab CI/CD
René P.
Last position:
Product Owner & Full-Stack Developer (myPlace Parking) at Hahn-Airport-Inn e.K.
- Concept and full-stack development of an app for parking space booking & management (Hahn Airport)
- From requirements to implementation and deployment; AI-supported development (Claude Code)
Stefan W.
Last position:
Architect/Software Developer at Global Logistics Support GmbH
Tasks
- Further development of a new ERP system with Blazor
- Generation of e-invoices in the XRechnung and Zugferd formats
- UI/UX design Client-server system
- Windows 11 Technology
- Microsoft .NET 9, Git, Azure DevOps, ASP.NET, MSSQL, Blazor Programming languages
- C#, MVVM Development tools
- Microsoft Visual Studio .NET 2022 Database
- MSSQL Industry
- Other
Daniel S.
Last position:
Business and IT analysis as well as implementation consulting for an e-invoicing project (eInvoicing) for a state-owned bank
Business and IT analysis as well as implementation consulting for an e-invoicing project (eInvoicing) for a state-owned bank
- Professional management and coordination of the external service provider
- Business support for the introduction and integration of an e-invoicing solution into existing system landscapes
- Design and validation of electronic invoice formats (XRechnung, ZUGFeRD), including business terms and business rules
- Definition and coordination of business validation logic, mandatory fields, and tax requirements
- Analysis and coordination of business edge cases together with business departments and the tax department
- Support with connecting invoice-generating systems as well as with integration and mapping processes
- Translation of business requirements into technical implementation requirements
Ernst H.
Last position:
Support/Development/Consulting – Process Development, E-Invoicing, XRechnung, ZUGFeRD
- Support and further development of a complex process for creating XML documents for electronic invoices / E-Invoicing (XRechnung, ZUGFeRD)
- Automation of operational processes, process development and optimization
- Development of frontend applications with MS Power Apps
- Porting SQL Server 2016 to SQL Server 2022
- SQL Server database administration
Thomas P.
Last position:
Product Owner & AI Automation Architect (B2B) at Ihre-Hygieneberatung
Development of a digital audit application for inspections in medical facilities. The goal is to connect on-site data collection, voice recording, documentation and downstream processes in one end-to-end, AI-supported workflow.
Design and development of a Flutter audit app with Claude Code for the structured execution and documentation of inspections.
Processing of voice recordings captured in the app through automatic transcription and AI-supported creation of structured inspection reports, followed by an approval process
Connecting various data sources such as email, Odoo 19, attendance records and Google Drive via n8n to automate billing and follow-up processes
Automatic provision of required documents and email delivery through n8n-controlled workflows, including the use of LLMs for text creation
Skills: Flutter, Claude Code, LLM Integration, n8n, Odoo 19, Google Drive, Process Automation
Robert L.
Last position:
Senior Project Manager AI & Data at Large German energy provider
AI Assistance and Target Vision for Partially Autonomous Energy Portfolio Management
Building an AI control layer directly on the up-to-date daily live portfolio of a large energy provider — not as an isolated pilot, but as an operational extension of the existing DB1 and portfolio management. The goal is the gradual development from assistance through monitoring/alerting to analysis agents with Human-in-the-Loop approvals, supplemented by a role-specific System of Engagement alongside the BI System of Record. At the same time, the business case, target vision and management pitch compared with static monthly reporting are being developed.
- AI control layer: Design and build on the existing live portfolio data product (several million contracts) — development stages assistance → monitoring/alerting → agents with Human-in-the-Loop approvals.
- LLM-supported data analysis: Semantic queries, SQL/tool integration and additional RAG components based on portfolio, plan-versus-actual and data quality data (Azure OpenAI, Snowflake), with drill-downs to individual contract level.
- Analysis agents: Multi-stage agents for variance and driver analyses of churn, price adjustments, volumes and procurement costs.
- Views concept: Role-specific interfaces for business units, management and C-level as a System of Engagement alongside the BI System of Record.
- Business case & pitch: Target vision and cost-benefit argumentation compared with static monthly reporting.
- LLM setup (privacy & security): Coordination with IT Security and Data Protection — EU region, data separation and approval processes.
- Agent architecture: Multi-stage agent pipelines (analysis → validation → summary) with documented data sources, tool calls, review steps and source references for each statement.
- Data foundation: Built on the up-to-date daily DB1 data product (Snowflake, dbt) — portfolio, plan-versus-actual and data quality metrics as the common basis for all AI analyses.
- Guardrails & evaluation: Evaluation and approval processes for LLM responses relating to management-relevant statements — test sets, metrics and human review.
- Prototyping & validation: Iterative validation of agent responses with the business unit — test question catalogue, feedback loops and response quality for each release.
- Roadmap & development stages: Detailed stages from assistance → monitoring/alerting → partially autonomous management, including transition criteria and governance for each stage.
- Integration: Integration into the existing BI and data landscape — BI remains the System of Record, while the AI layer provides interactive drill-down paths as the System of Engagement.
- Enablement: Enablement of business users — prompting guides, training and an operating model for ongoing use.
- Management: Coordination of business units, Data Engineering, IT Security and Data Protection.
- Change Management: Communication and expectation management with business units and management throughout the development stages.
Results:
- Built on an existing up-to-date daily data product with several million contracts
- Established an LLM setup coordinated with Data Protection and IT Security in the EU region, including data separation and approvals
- Defined three development stages through to partially autonomous management
- Designed role-specific views for business units, management and C-level
- Developed the business case and management pitch for the development stages
- Established an iterative response-quality validation process with the business unit
- Designed the operating model for assistance operations and initiated validation
Stack: Azure OpenAI, Azure AI Foundry, Snowflake, dbt, React, TypeScript, Entra ID, RAG, Agentic AI, analysis agents, Human-in-the-Loop, Prompt Engineering, LLM Evaluation, LLMOps, GDPR / EU region, Azure DevOps, Python, SQL, Change Management
Klaus-Dieter P.
Last position:
IT Architect at REWE digital
- Development and further development of e-invoicing solutions, interfaces for invoice processing, and implementation of regulatory requirements
Technology & methods: XRechnung, ZUGFeRD, EN 16931, XML, API integration, backend development, cloud services, automation, compliance, AI-supported document analysis
Manuel K.
Last position:
.NET Developer, SAP Business One Consultant at Own Projects
- DTO class generator: In-house development of a tool for the automatic generation of classes, functions, and methods for use in .NET Core projects based on SAP Business One Service Layer metadata
- E-invoice import add-on: Development of a SAP Business One add-on / coresuite module for the automated import of ZUGFeRD e-invoices as incoming invoices – with configurable mapping to flexibly control the import logic across four mapping types (DIRECT, SQL, FIXED, EXPR). The add-on is available as a licensed product for SAP Business One customers.
Stack: SAP Business One, SAP Business One Service Layer, coresuite Country Package, C#
Markus K.
Last position:
Founder & Managing Director at Qrafto UG (haftungsbeschränkt)
- Founding and overall responsibility: Built a B2B SaaS platform for craft and construction businesses from the first line of code to the live launch with the first paying customer; solo founding including full establishment of the company and all business processes.
- Product and technology responsibility: Designed and developed the entire product.
- Infrastructure & DevOps: Managed a Kubernetes/Helm environment including CI/CD, monitoring, and security architecture; GDPR-compliant platform decisions and evaluation of EU-hosted LLM providers.
- Agentic coding as a productivity multiplier: Set up a productive multi-agent environment with Claude Code: up to eight parallel agents in isolated Git worktrees, Telegram-based remote control and monitoring, MCP integrations (e.g., Context7, Playwright for E2E tests), and a builder-critic pattern with custom slash commands (/research, /plan) and compressed project contexts. Result: development throughput on par with a small team while working solo.
- Go-to-market: Independently developed positioning, SEO and direct mail playbook, as well as target group analysis.
- Regulation & finance: Implemented e-invoicing requirements (ZUGFeRD/XRechnung), set up accounting and payment infrastructure, and managed funding and financing options.
Diego E.
Last position:
RPG Software Developer from RPG III to Free Format
- Development of software and system support for RPG development.
- Development, optimization and maintenance of programs in RPG (RPG II to ILE Free Format).
- Performing integration tasks, data management as well as applying and managing system updates.
- User support and training to ensure smooth system operation.
Sebastian P.
Last position:
Senior Product Owner & Project Manager at NETZSCH Gerätebau GmbH & Co. KG
Acted as product owner for an international customer portal for consolidated analysis of technical device data; defined vision, target state, and implementation strategy.
Established a structured product backlog and introduced clear user stories; shortened development cycles and quintupled project progress within a few months.
Achieved a significant boost in delivery performance by professionalizing requirements management and implementing lean workflows; reduced coordination effort by 25%.
Served as technical single point of contact (SPOC) for the development team; closely orchestrated external stakeholders to optimize alignment between business requirements and technical implementation.
Advanced and sharpened agile methodology to increase team efficiency; implemented KPI-based reporting with early warning indicators for proactive risk management.
Michael S.
Last position:
Principal Consultant / Managing Director at The Implementers GmbH
Consulting and interim management in the automotive industry, healthcare and other sectors focusing on program management, production launches, plant management, supplier development, cost reduction, process optimization, AI implementation and AI-driven process automation.
Key projects:
Concept for performance documentation of a pain therapy department with interdisciplinary input and reconciliation with OPS catalogue (Feb 2026).
Complete billing system for a medical practice with multi-tenant support, state machine workflow, ZUGFeRD/EN16931-compliant invoice generation, OpenEMR integration; implemented with ~4 200 LOC Python, ~1 700 LOC SQL, 30+ endpoints, 13 DB migrations (Dec 2025 — Feb 2026).
Clinical decision support system for inpatient pain therapy including automated processing of pain questionnaires, AI-generated therapy recommendations and longitudinal analysis; stack: FastAPI, Ollama, PyMuPDF, React + TypeScript, PostgreSQL, Docker (Sep 2025 — Mar 2026).
End-to-end AI-powered transcription and documentation pipeline from physician-patient conversations with WhisperX transcription, five-stage LLM pipeline, review UI and self-hosted infrastructure; stack: FastAPI, WhisperX, Ollama, React + TypeScript, Docker (Aug 2025 — Feb 2026).
AI-powered pipeline for document recognition and automated bank reconciliation processing >3 000 transactions and >4 000 documents with multi-model OCR, LLM-based document separation, web UI and loop-based prompt versioning; infrastructure: Docker Compose, PostgreSQL, Ollama LLM server (Aug 2025 — present).
Supplier development for suspension parts including changes, new launches, relocations and bottleneck management for KTM (May 2023 — Nov 2024).
Leading transfer of 150 serial production items after supplier plant closure for KTM (Jul 2022 — Jan 2024).
Lean and process consultation for Swiss manufacturer of electro components at Von Roll Schweiz AG (Jun 2018 — Nov 2018).
Ongoing back office support and process improvement for a private pain therapy & TCM practice including anesthesia protocols, website setup, digitalization and process optimization (May 2018 — May 2025).
Acting plant manager for interior trim components in Hungary focusing on stabilization, tooling optimization, headcount reduction and backlog reduction at MAO Automotive GmbH & Co (Feb 2018 — Jun 2018).
Start-up consulting and coaching for private pain therapy & TCM practice covering concept, business plan, financing, construction, setup and SOP implementation (May 2017 — Apr 2018).
Program manager for critical suppliers DAG BR238 door trim leading supplier qualification, sampling, PPAP/EMPB tracking and process approvals at Megatech Industries Deutschland GmbH (Jul 2016 — Oct 2017).
Interim COO and acting plant manager in aluminum profile processing automotive supplier with 350 employees and €80 M revenue, leading expansion in Slovakia at PWG Profilrollen-Werkzeugbau GmbH (Sep 2015 — May 2016).
Leading labor and material efficiency program for headliner production focusing on process, material, labor and supplier cost reduction at Motus Headliner GmbH (Jan 2015 — Aug 2015).
Leading development program for interior door trim DAG C292 including launch phase onsite in MS & AL at Toyota Boshoku America (Sep 2012 — Jan 2015).
Leading cost down team for DAG C218 door panels at Toyota Boshoku Europe NV (Mar 2012 — Aug 2012).
Sun visor development consulting for project team in Turkey including optimization, market analysis and design reviews at MARTUR FOMPAK (Jan 2012 — Dec 2014).
Leading transfer of injection molding tools to new suppliers including sampling, assembly trials and PPAP/EMPB coordination at Toyota Boshoku Europe NV (Jan 2012 — Aug 2012).
Program manager for BMW sun visors L7 Platform with production transfer and new development of F30 sun visor at Magna (Jul 2010 — Dec 2011).
Gökmen U.
Last position:
Project Manager at Industry
- Led the migration and release management for the SaaS transformation
- Coordinated external Business Central partners
- Managed module changes within Business Central
- Implemented e-invoicing (ZUGFeRD)
- Reported to executive management
- Planned and controlled the Go-Live
Discover over 15,000 top freelancers
Statistics of experts using ZUGFeRD
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
1.8 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Professional Services
Certification focus areas
Project Management, Information Technology, Product Development
Bachelor's degree or higher
80%
Master's degree or higher
53%
Doctorate
7%
Certifications per freelancer
4
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany 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 in Germany using ZUGFeRD
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
ZUGFeRD 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 (89%)
- Manufacturing (79%)
- Professional Services (53%)
- Banking and Finance (47%)
- Retail (47%)
- Healthcare (37%)
- Government and Administration (37%)
- Automotive (32%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Standardized Hybrid Electronic Invoicing
ZUGFeRD (Zentraler User Guide des Forums elektronische Rechnung Deutschland) is the specification for hybrid electronic invoices. It combines a human-readable PDF/A-3 document with an embedded, machine-readable XML dataset based on the UN/CEFACT standard. Organizations use it to streamline accounts payable and meet legal e-invoicing obligations.
Core Invoicing Profiles and Frameworks
- ZUGFeRD 2.x profiles ranging from MINIMUM and BASIC to COMFORT and EXTENDED
- Alignment with Factur-X to guarantee bilateral cross-border interoperability
- Syntactic and semantic compliance with the European standard EN 16931
- Embedding schema-validated XML directly into PDF/A-3 file attachments
Technical Ecosystem and Tooling Integration
Implementing the format involves document generation libraries such as Apache PDFBox, iText, and specialized parsers like Mustangproject. Specialists connect these tools to enterprise platforms including SAP, Microsoft Dynamics 365, and custom backend billing systems. Validation relies on Schematron rules and official validation tools to ensure error-free XML payloads.
Business Drivers for External Expertise
Companies in Germany face strict e-invoicing mandates for business-to-government (B2G) and expanding business-to-business (B2B) transactions. Freelance specialists resolve mapping discrepancies between internal enterprise data models and standardized XML structures. They also upgrade legacy invoicing engines to prevent billing rejection by public portals and enterprise trading partners.
Typical Project Engagements
- Auditing existing invoice generation pipelines for semantic compliance
- Integrating automated validation gates into inbound accounts payable queues
- Mapping complex tax categories, VAT exemptions, and line-item discounts
- Architecting conversion services between pure XML formats and hybrid PDF files
Hallmarks of Strong Domain Specialists
Top specialists combine deep knowledge of electronic document standards with practical ERP development experience. They navigate the nuances of tax reporting requirements, international cross-border sales, and archival requirements. Strong professionals write clean serialization scripts, handle edge-case data conversions gracefully, and secure audit-compliant workflows.
Frequently asked questions
Questions about ZUGFeRD? Start with the answers below.
ZUGFeRD is a hybrid format that bundles a PDF/A-3 visual document with machine-readable XML, whereas XRechnung is a purely structured XML format without a human-readable PDF component. While public sector authorities in Germany strictly mandate XML via Peppol or direct upload, ZUGFeRD profiles aligned with EN 16931 are legally equivalent and often favored in private B2B transactions.
Specialists working with ZUGFeRD commonly deploy Mustangproject in Java environments, Konik for library-driven extraction, or PDFBox and iText for raw PDF/A-3 handling. For .NET stacks, developers utilize specialized packages like ZUGFeRD-csharp alongside automated Schematron validators to ensure full schema conformance.
Organizations in Germany require technical compliance with strict statutory e-invoicing mandates governing corporate transactions. Bringing in a vetted Factur-X or hybrid invoice specialist accelerates the adaptation of legacy billing systems and prevents costly payment disruptions caused by rejected invoice files.
Yes, nearly all ZUGFeRD integration projects operate remotely because deliverables center on codebases, XML transformation mappings, and API endpoints. Occasional on-site sessions may occur when integrating on-premise ERP infrastructure or aligning with security-restricted finance departments.
A capable ZUGFeRD specialist requires solid expertise in XML technologies, including XSLT, XPath, and XML Schema (XSD), alongside PDF/A archiving standards. In addition, familiarity with enterprise ERP architectures, relational databases, and German accounting standards ensures proper business logic implementation.
Professionals test generated files against the official validation services provided by KoSIT and use automated ZUGFeRD validator utilities. These tools verify both the PDF/A-3 conformance and the semantic business rules dictated by EN 16931 before files enter production.
Straightforward invoice extraction often requires intermediate software engineering experience, but full end-to-end ERP integration demands a senior ZUGFeRD specialist. Senior professionals understand complex tax corner cases, multi-currency invoicing, and cross-border European trade requirements.
Because the underlying specification originated within German industry forums, technical documentation and local tax concepts are often discussed in German. Many teams operate in English for technical integration, but working familiarity with German accounting terminology allows a ZUGFeRD specialist to communicate efficiently with local finance teams.
The average hourly rate of freelancers in Germany who have used ZUGFeRD in their recent projects is 102 €, which corresponds to a daily rate of about 813 € based on an 8-hour working day.
Of the freelancers in Germany who have used ZUGFeRD in their recent projects, 80% hold at least a Bachelor's degree, 53% hold at least a Master's degree, and 7% hold a doctorate.
On average, freelancers in Germany who have used ZUGFeRD in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Germany who have used ZUGFeRD in their recent projects are German (100%), English (100%), and Spanish (16%).
The most common industries among freelancers in Germany who have used ZUGFeRD in their recent projects are Information Technology (89%), Manufacturing (79%), and Professional Services (53%).
The most common business areas among freelancers in Germany who have used ZUGFeRD in their recent projects are Information Technology (89%), Product Development (68%), and Project Management (68%).
Main locations of FRATCH Experts, who have recently used ZUGFeRD
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 Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
