XRechnung Experts in Germany
in minutes with vetted, available specialistsHire experts who handle XRechnung invoice validation, XML structure checks, PEPPOL and EN 16931 alignment, and ERP integrations for German public-sector workflows. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used XRechnung
Thomas Polanski
Last position:
Project Manager & Product Owner – M&A Integration at voxa c/o IC Music and Apparel GmbH
- Project management of the legal and system-side integration of Taschenkaufhaus into the Voxa group: conversion of all contracts, accounts, and system access rights on the defined cutover date
- Migration from Microsoft Dynamics NAV 2009 to 2013: analysis of all existing interfaces, redefinition of processes, and coordinated go-live without interrupting operations
- Integration of the complaints and returns process into MS Dynamics NAV 2013; major process simplification through standardization
- Introduction of a new POS system (Shopify POS) in all stores: requirements analysis, configuration, rollout, and employee training
- Use of n8n automation workflows for data reconciliation between marketplaces and ERP; manual processes significantly reduced
Stefan Amann
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 Pfisterer
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 Wimmer
Last position:
Architect/Software Developer at Global Logistics Support GmbH
Task
- Further development of a new ERP system with Blazor
- Creation 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
Ernst Höfler
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
Wolfgang Tomaschek
Last position:
Overall Project Manager at itzbund
Project content: The use of “Generative Pretrained Transformer” technologies (GPT) will massively change the world of work in the coming years. ITZBund is developing a base service for this, which can be used by its 200 customers. This base service is offered as an on-prem and a cloud variant. Started in 12/23, from 05/24 productive systems (based on MVP) could already be rolled out and operated successfully for several agencies and federal ministries.
Project metrics:
- Budget in 2024 approx. €20M
- approx. 70 people in the core project context
- regular (indirect) contact with approx. 80 people in the wider project environment
My main tasks:
- Overall responsible external project manager
- Project definition phase/project setup and establishment of the project organization
- Strategic and operational project planning, as well as shaping and ongoing adjustments of the project
- Ongoing coordination with project owners and stakeholders in ITZBund
- Ongoing coordination with subproject managers, agile roles and other project staff
- Responsibility for project controlling, quality management, risk management and change management
- Responsibility for providing the base service on on-prem and cloud environments and its continuous development
- Planning and leading several hypercare phases
- Collaboration and ongoing coordination with a partner project of a federal ministry and provision of an MVP
- Coordination with agile teams
- Coordination with operations, release and deployment
- Responsibility for the implementation of the first customer projects
- Responsibility for creating an AI governance
- Ensuring accessibility (BITV)
- Responsibility for setting up a subproject for marketing activities
- Support in building an efficient proposal process
- Stakeholder management
Methodology:
- V-Model XT ITZBund
- Scrum
Tools used:
- Microsoft Office, Skype, MS Project, Confluence, Jira, SharePoint, Miro
Markus Kollers
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.
Sebastian Pieper
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.
Dennis Franz
Last position:
Controller/Accountant at Adama Deutschland GmbH
- Execution of accounts receivable, accounts payable, asset, and general ledger accounting
- Preparation of quarterly/annual financial statements under HGB/IFRS16
- Reviewing, classifying, and posting all business transactions
- Payment transactions and treasury planning
- Coordinating tax matters
- Preparing and analyzing statistics and reports
- Preparing analyses, reports, and liquidity forecasts
- Optimizing financial processes
- Contact person for colleagues, tax advisors, and auditors
- Valuation of foreign currencies, special cases in VAT law
- Supporting internal audits
- Evaluating and posting provisions under HGB, IFRS, and tax law
- Preparing and posting IFRS 16 entries
Nikolai Rybalkin
Last position:
Principal Engineer (Contract) at Independent Contractor
- Built multi-tenant warehouse management SaaS: 40 API modules, 150+ routes, real-time updates via SignalR
- Technologies: React, TypeScript, Redux Toolkit, RTK Query, Webpack, .NET 8, PostgreSQL, SignalR, Docker, GitHub Actions
- Landing: Next.js 14, Tailwind CSS, 17 localizations, Stripe payments (SEPA + cards)
- Testing: xUnit (150+ files), Jest, Playwright E2E; CI/CD: Docker, GitHub Actions
- Telegram AI agent: daily inventory reports, shipment alerts and warehouse monitoring delivered to mobile
- Background jobs and scheduled tasks for automated reporting, alerts, and data synchronization
- Built German e-invoicing SaaS (XRechnung, ZUGFeRD), GDPR compliant, multi-tenant architecture
- Technologies: React, TypeScript, RTK Query, Python, FastAPI, PostgreSQL, Redis, Celery; Testing: pytest (294 tests), Playwright
- Implemented async task queues (Celery + Redis) and scheduled jobs for invoice processing, email notifications, and DATEV export
- Developed AI-powered content automation platform: analyzes Git commits, generates and publishes posts to LinkedIn and Discord, responds to GitHub Issues automatically
- Cron-based automated publishing pipeline and scheduled content generation and distribution across platforms
- Multi-LLM architecture (OpenAI, Claude, Gemini) with pluggable provider system and RAG-based knowledge assistant integrated across all SaaS products
Sebastian Schorsch
Last position:
Head of Financial Operations Warehouse at PPRO Holding GmbH
- Definition and testing of processing steps in the Financial Data Warehouse
Lievin Mugabushaka
Last position:
Stream-Lead at Retail
- Greenfield introduction of VIM 23.4 SP2 (OT Private Cloud), 2 countries, approx. 80k invoices/year
- Fiori & eInvoice processing
- OCR Core Capture (Public Cloud)
- 10 key-user trainings
- Throughput time halved
- Automation rate: 60-75%
Discover over 15,000 top freelancers
Statistics of experts using XRechnung
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.7 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Automotive
Certification focus areas
Information Technology, Product Development, Accounting
Bachelor's degree or higher
75%
Master's degree or higher
38%
Certifications per freelancer
1
Most common languages
German, English, French
Speak two or more languages
100%
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 Germany 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 Germany using XRechnung
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
XRechnung basics
XRechnung is the German electronic invoice standard for sending structured invoices to public authorities. It is based on XML and follows EN 16931 rules, so the data can be processed automatically instead of being read as a PDF.
Where it is used
- Invoices for German public-sector clients
- ERP and billing system output
- Invoice validation and conversion flows
- PEPPOL-based exchange scenarios
Skills that matter
Strong specialists know invoice schemas, business rules, and the edge cases that cause rejections. They also understand how XRechnung fits with PDF attachments, UBL or CII structures, and the wider e-invoicing process.
Typical project work
Companies bring in freelance experts for new invoice channels, compliance updates, and fixes after rejected submissions. In Germany, they also need support when internal finance teams, IT, and external accounting partners must work from the same format.
Tooling and integration
A good setup usually touches ERP systems, invoice gateways, validation tools, and PEPPOL access points. Specialists should be able to test payloads, trace errors, and adjust mapping logic without breaking upstream billing flows.
What good experts deliver
- Clean XRechnung output from source data
- Validated XML that matches business rules
- Clear error handling for rejected invoices
- Practical guidance for finance and IT teams
- Stable integration with existing billing systems
Frequently asked questions
The facts hiring teams ask for most often when it comes to XRechnung.
XRechnung is used to send structured invoices to German public-sector recipients in a format their systems can process automatically. It replaces manual reading of invoice PDFs with machine-readable XML data. That makes validation, routing, and booking much more reliable.
A XRechnung invoice carries structured fields that software can validate and import directly. A PDF may still be attached for reading, but the XML is what matters for processing. For public-sector billing, that structure is the key difference.
No, XRechnung and ZUGFeRD are related but not identical. XRechnung is a strict XML-based standard, while ZUGFeRD combines a PDF with embedded machine-readable invoice data. Companies often compare them when deciding how to invoice public and private recipients.
A strong XRechnung specialist understands XML, invoice validation, EN 16931 rules, and ERP or billing integration. Knowledge of PEPPOL, mapping logic, and error analysis is also useful. The best experts can explain rejected invoices in plain language, not just fix the file.
Bring in XRechnung expertise when invoices are being rejected, when a new billing channel is added, or when an ERP change affects invoice output. It is also useful during compliance updates or when internal teams need a clean implementation plan. External help is often faster than trial and error.
Yes, XRechnung work is often done remotely because most tasks involve schema checks, mappings, and system integration. On-site collaboration can still help when finance, IT, and process owners need to align quickly. For German public-sector projects, clear communication in German is often important.
A good XRechnung expert does more than produce valid XML once. Look for someone who can explain the business rules behind the file, show how they test edge cases, and work cleanly with your ERP or invoice gateway. Strong experts prevent repeat rejections, not just single fixes.
XRechnung often goes together with PEPPOL, EN 16931, XML validation, and invoice mapping. In many projects, specialists also need to understand ERP data models and finance workflows. That broader view helps them fit the standard into real business processes.
The average hourly rate of freelancers in Germany who have used XRechnung in their recent projects is 98 €, which corresponds to a daily rate of about 786 € based on an 8-hour working day.
Of the freelancers in Germany who have used XRechnung in their recent projects, 75% hold at least a Bachelor's degree and 38% hold at least a Master's degree.
On average, freelancers in Germany who have used XRechnung in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Germany who have used XRechnung in their recent projects are German (100%), English (100%), and French (17%).
The most common industries among freelancers in Germany who have used XRechnung in their recent projects are Information Technology (83%), Manufacturing (75%), and Automotive (50%).
The most common business areas among freelancers in Germany who have used XRechnung in their recent projects are Information Technology (92%), Product Development (75%), and Project Management (75%).
Main locations of FRATCH Experts, who have recently used XRechnung
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
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
