XRechnung Experts in Germany
with precise AI matching and vetted, available freelancersHire experts who configure compliant invoice structures, connect ERP and accounting systems, and validate electronic invoices against EN 16931 requirements. FRATCH matches you quickly with vetted, available freelancers who fit your XRechnung project.
Meet FRATCH Experts in Germany, who have recently used XRechnung
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
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
Task
- Further development of a new ERP system with Blazor
- Creation of e-invoices with the XRechnung and ZUGFeRD format
- 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 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
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
Wolfgang T.
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 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.
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.
Dennis F.
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 R.
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 S.
Last position:
Head of Financial Operations Warehouse at PPRO Holding GmbH
- Definition and testing of processing steps in the Financial Data Warehouse
Lievin M.
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
20 years
Position duration
1.6 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Media and Entertainment
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
67%
Master's degree or higher
33%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
100%
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 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
XRechnung 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 (85%)
- Manufacturing (77%)
- Media and Entertainment (54%)
- Professional Services (54%)
- Automotive (46%)
- Banking and Finance (46%)
- Transportation (46%)
- Government and Administration (46%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What XRechnung is
XRechnung is the German standard for structured electronic invoices issued to public-sector recipients. It is based on the European semantic model EN 16931 and represents invoice data in formats such as XML. Unlike a PDF, it allows receiving systems to process invoice information automatically.
Where it is used
Companies use XRechnung when invoicing German federal, state or local authorities and when their procurement contracts require a compliant electronic format. Typical work includes:
- Creating invoices with mandatory buyer and routing information
- Converting ERP invoice data into valid XRechnung XML
- Sending invoices through the required electronic channels
- Checking tax, totals, payment and reference fields
Ecosystem and tooling
XRechnung projects connect accounting, ERP, procurement and document-exchange systems. Specialists work with XML schemas, EN 16931 business terms, validation rules, Leitweg-ID handling and transmission channels such as Peppol. They may also use format converters, validator services, APIs and archive systems to support reliable processing.
When companies need expertise
External expertise is useful when a finance or procurement system must support XRechnung without disrupting existing workflows. Companies often bring in professionals for a new ERP rollout, public-sector onboarding, invoice-format migration, integration troubleshooting or validation failures. Germany-based collaboration can help when German-language coordination and knowledge of local invoicing processes matter, while remote delivery is often practical for clearly documented interfaces.
What strong specialists deliver
Strong XRechnung specialists understand both the business meaning of an invoice and its technical representation. They map source fields correctly, distinguish mandatory from conditional information and test edge cases such as credit notes, allowances, payment terms and multiple tax categories. They also document mappings and create checks that finance teams can use after handover.
How quality is assessed
A reliable implementation produces invoices that pass an appropriate validator and remain readable and traceable throughout their lifecycle. Review the professional’s experience with EN 16931, XML mapping, ERP integration, Peppol or other required channels, and public-sector billing workflows. Ask for a clear test plan covering rejected invoices, corrections, duplicate prevention, audit records and secure archiving.
Frequently asked questions
The facts hiring teams ask for most often when it comes to XRechnung.
XRechnung is used to create structured electronic invoices for public-sector recipients in Germany. It carries invoice data in a machine-readable XML structure so receiving systems can validate and process it. A PDF attachment alone does not provide the same structured information.
XRechnung is a purely structured XML invoice format, while ZUGFeRD combines structured invoice data with a human-readable PDF. Both are based on the EN 16931 semantic model when used in the appropriate profile. The right choice depends on the recipient’s requirements and the company’s processing workflow.
A strong XRechnung specialist understands EN 16931, XML schemas, invoice validation and German routing details such as the Leitweg-ID. Useful adjacent skills include ERP or accounting integration, API design, Peppol, tax data mapping, document archiving and automated testing.
The required depth depends on the scope. A simple field mapping may need focused XRechnung knowledge, while an ERP rollout or multi-channel integration calls for a professional who has handled validation errors, exceptions, testing and operational handover. Ask for examples involving systems and invoice flows similar to yours.
Yes, much of XRechnung work can be completed remotely through secure access, documented interfaces and shared test cases. On-site sessions may help with workshops involving finance, procurement or public-sector account teams. German-language communication can be important when requirements and existing processes are handled locally.
Check whether the resulting invoices pass a suitable validator and whether mappings are documented for review. A quality-focused professional tests mandatory and conditional fields, tax totals, corrections, duplicate handling, transmission status and archiving. They should also explain how the company can maintain the process after delivery.
XRechnung commonly connects with ERP, accounting, procurement, billing, archive and document-exchange systems. The integration may use exports, APIs, middleware or a service that converts internal invoice data into compliant XML. The specialist should confirm where validation, routing, status updates and retention are handled.
Before working with XRechnung, clarify the recipient types, required transmission channel, source systems, invoice variants and ownership of validation. Also confirm access to realistic test data, acceptance criteria, security rules and the process for rejected or corrected invoices. These details determine the integration effort and the handover plan.
The average hourly rate of freelancers in Germany who have used XRechnung in their recent projects is 97 €, which corresponds to a daily rate of about 774 € based on an 8-hour working day.
Of the freelancers in Germany who have used XRechnung in their recent projects, 67% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Germany who have used XRechnung in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Germany who have used XRechnung in their recent projects are German (100%), English (100%), and French (15%).
The most common industries among freelancers in Germany who have used XRechnung in their recent projects are Information Technology (85%), Manufacturing (77%), and Media and Entertainment (54%).
The most common business areas among freelancers in Germany who have used XRechnung in their recent projects are Information Technology (92%), Product Development (77%), and Project Management (77%).
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
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Philipp Thomaschewski
FRATCH CEO
