Adyen Expert in Germany
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Meet FRATCH Experts in Germany, who have recently used Adyen
Reinhold M.
Last position:
Business Requirements Engineer, Proxy Product Owner, Tester at AXA Konzern AG
Working Environment
- Insurance / Claims Management (Property, Liability, Automotive)
- REST-based ClaimAPI with Guidewire ClaimCenter
Scope
- Further development of the internal REST-based ClaimAPI with Guidewire ClaimCenter as the backend and various portals/front-end offices as clients, and with the following objectives: + increased AI-supported claims processing outside of Guidewire ClaimCenter + and support for all lines (property, liability, automotive).
- Further development of automated claims processing
Activities
- Interfacing IT & Business
- Design activities with documentation in Confluence, Jira: + Requirements engineering (functional and non-functional) + Design of REST endpoints and coordination with interface partners (esp. AI-colleagues) + Identification, design and evaluation of alternative solutions (moving away from a monolithic approach toward fine-grained endpoints, with code reuse across all lines if possible) + Creation / refinement of product backlog items in Jira, i.e. epics, user stories and tasks, incl. alignment with developers & POs during (pre-)refinement sessions + Using AXA Secure GPT when creating / refining user stories (description, acceptance criteria) and designing REST endpoints + Estimation and prioritization of user stories and tasks during Sprint Planning sessions + Coordination and support during the implementation of Product Backlog items + Driving decision making with preparation and presentation of decision-making documents
- Quality assurance: + Test management, including test case creation using Xray in Jira + Test execution using Bruno as REST client and in Guidewire ClaimCenter + Submission of test artifacts for PO approval + Analysis of production bugs
Methods Big Room Planning (aka PI-Planning in SAFe), Scrum, BPMN, EPK, UML, ERM, DDD
Tools / Tech Stack Teams, Confluence, Jira with Xray, OpenAPI/Swagger, REST, JSON, XML, MS Office, Bruno, GitHub repository (reading), Guidewire ClaimCenter, AXA Secure GPT (AXA's in-house GenAI solution based on Azure OpenAI)
Ali A.
Last position:
Founder & Architect at Independent AI R&D
- Fully on-premises LLM document-examination platform for a compliance-critical banking domain: agentic LangGraph pipeline with deterministic verification, every AI judgment structured and source-anchored; ~960 automated tests, zero data egress
- GPU throughput engineering (quantized serving, speculative decoding, prefix caching): 9.5x extraction speed-up, 500+ multi-document case files per day on a single A100
- AI-native EDI/EDIFACT integration platform (~116k LOC Java 25 / Spring Boot 4, 1,900+ tests): LLM-drafted partner mappings machine-verified before go-live (DFDL conformance, field-coverage checks, dry runs), ~99.5% byte match on real customer files — replacing weeks of manual mapping per partner
Armen M.
Last position:
CTO/CPO Platform & Technology at Green Mobility Holding
- Overall responsibility for platform transformation across ERP, CRM, PIM and AI-supported process automation
- ERP transformation: Introduction and migration to Microsoft Dynamics 365 Business Central
- CRM & Growth Stack: Implementation of HubSpot as the central CRM and platform for lead and marketing automation
- Product data & Commerce Enablement: Introduction of an ePIM to scale Category Management and digital Commerce processes
- AI-supported process automation: Design and introduction of agent-based AI workflows to automate processes in Business Services, Accounting, Tender Management and Marketing
- Building a scalable platform organization consisting of Product Development, DevOps, UX, Cloud Engineering and Corporate IT
- Introduction of modern product and portfolio governance (e.g. OKRs, portfolio boards, value-based roadmaps) to manage technology-driven initiatives
- Harmonization of heterogeneous system landscapes and transformation into a modular, scalable platform architecture (ERP, CRM, PIM, integrated customer journeys)
- Coaching and development of Product Owners, Tech Leads, Delivery Managers and UX teams in building a scalable product organization
Gwen G.
Last position:
Senior Ruby on Rails & DevOps Developer at Sapiens
Further development of a software solution for managing audit applications and audit notifications according to §106d SGB V for the Association of Statutory Health Insurance Physicians in Hamburg.
- Developed numerous features, optimised performance, refactored code and analysed errors
- Refactored the development container setup
- Optimised the Gitlab-CI build pipeline
- Introduced improvements to the team workflow
Zacharias C.
Last position:
CTO at Laracraft
- Architecture and conception
- Development at gitis.de (Laravel, Vue, Blade, CI/CD Pipeline [Rector, PHPUnit, PHPStan, PHP_CodeSniffer])
- Development at plotdesk.app (Laravel, Vue, Inertia, Tailwindcss, Prism, Ansible, Docker, CI/CD Pipeline [Rector, Pest, PHPStan, Pint])
- Development at sales-automation.ai (Laravel, Vue, Inertia, Tailwindcss, Prism, CI/CD Pipeline [Pest, PHPStan, Pint])
- Development at Cynapsis Interactive (Laravel, Filament, Google Ads API, CI/CD Pipeline [Rector, Pest, PHPStan, Pint])
- Analysis and monitoring tool for z-optimations GmbH (Laravel, Blade)
- Development at ProgressMaker (Laravel, Pest, REST-API)
- Development of a data warehouse at ProgressMaker (Laravel)
- Development of SimpleStats.io (Laravel, Vue, Inertia, Tailwindcss, Pest, CI/CD)
- Development of Validation for Laravel (Laravel, Vue, Inertia, Tailwindcss)
- Development of multiple open-source projects (laravel-date-scopes, laravel-schema-rules, laravel-xhprof)
Steffen S.
Last position:
Senior Technical PM, CRM Core Experience & AI at Propstack GmbH (Scout24 S.E.)
- Built a JTBD-based prioritization framework for 3,000+ accumulated feature requests, identified 27 broker jobs, validated 8 through 25 user interviews, and used the resulting job map as a live prioritization filter for all incoming channels (Upvoty, CSAT, consulting tickets).
- Responsible for the Scout24 Lighthouse initiative: Document Intelligence with full RAG architecture (semantic chunking, bge-m3 embeddings, pgvector, BM25+Dense hybrid retrieval).
- Reduced lead time of customer feature requests to 3.1 days through code analysis, ticket specification, and independent implementation using a coding agent (Codex).
- Developed an LLM-based support agent (GPT-4o mini, Codex-generated merge requests) that reduced 3rd-level escalations from 40% to 5% of all monthly tickets.
- Integrated six partners through technical coordination, specification, backlog and release management, and led seven full stack developers.
- Eliminated regulatory exposure for brokers in six weeks through risk analysis (BGH ruling on distance selling/GDPR), new audit features, and coordination with legal and data protection officers.
Johannes S.
Last position:
CFO at Genesis Mining Ltd
- Built the entire accounting function from organizing bank and wallet accounts to preparing CEO statements
- Prepared group financial statements and coordinated with authorities
- Advised shareholders in Dubai
- Recommended reorganization of the group
- Managed liquidation after spin-off
- Built and managed the finance team
- Created a project plan for HK statements
- Collected bank and wallet accounts (five-figure number, millions of records)
- Structured and processed all legal transactions (technology agreements, power plant acquisitions, SPVs, spin-off, investment/disinvestment structures, profit sharing)
- Set up chart of accounts by profit centers
- Built and managed fixed assets
- Introduced accounting in the US system QuickBooks and posted all entries (millions)
- Cleared accounts
- Handled intercompany reconciliations with major subsidiaries including permanent establishments
- Reconciled all transactions (B2B, B2C, self-mining, wallets/exchanges/credit cards)
- Negotiated settlements of receivables (double-digit millions)
- Engaged auditors and tax advisors
Results:
- Established the accounting function with all associated subsystems and built the team
- Prepared group and subsidiary financial statements as well as tax returns and coordinated with authorities
- Coordinated auditors
- Advised shareholders in Dubai
- Recommended group reorganization
- Managed liquidation after spin-off
Harald S.
Last position:
IT Product Owner – eCommerce – Mechanical Engineering at Self-employed
- Responsible for further developing the web shop with focus on stability, security, and scalability
- Support the business in creating and evaluating requirements
- Technology: SAP Commerce Cloud, Adobe Experience Manager CMS (AEM), Solr Search, Adyen Payment Service Provider
- Tools: Confluence, Jira, Miro, ServiceNow
Ingo S.
Last position:
Interim Department Head / Director IT / Business Consultant at REWE-Digital GmbH
Interim takeover, further development, and management of the Customer Relations and Sales domain
Responsibility for ~150 employees (3 Chief Product Owners, 21 Product Owners, 2 Engineering Managers, Agile Coaches, Solution Architects, front-end and back-end developers, team assistants)
Budget responsibility: approx. 40 million euros
Support during the split of the central retail business unit into Procurement Solutions and Customer Relations and Sales
Reorganization and annual planning based on budget, capacity, FTE, PT, and management of the CRS department
Ensuring strategic projects in an agile product organization (e.g. REWE Bonus, in-house marketing, AI-based projects, data warehouse migration to Snowflake, retail media)
Reporting directly to management and the board
Daniel W.
Last position:
Sabbatical at Sabbatical
- Travel and Gen AI trainings
Jannis A.
Last position:
AI Trainer for cross-functional business owner tasks at micro1
Georg W.
Last position:
Project Manager / Product Owner at Freelance
- Project management and product owner for ERP migration to Odoo
- Designed a central single sign-on system (AWS Cognito) for all digital portals
- Coordinated complex system integrations (SAP, payment providers) with technical and business stakeholders
- Budget responsibility and resource management
Nabil A.
Last position:
Financial Accountant at Feintool
- Group accounting for seven production plants in Germany in the accounting area with SAP
- Responsible for general ledger accounting as well as accounts receivable
- Processing and monitoring of factoring processes
- Performing intercompany reconciliations between group companies
- Preparing monthly, quarterly, and annual financial statements in accordance with HGB and IFRS
Elie J.
Last position:
Head of Fraud at Sixt
- Assessed payment-related disputes and car loss cases.
- Delivered a practical plan to resolve the gaps and operationalise fraud management.
Discover over 15,000 top freelancers
Statistics of experts using Adyen
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.1 years
Positions per freelancer
11
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Retail
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
83%
Master's degree or higher
50%
Doctorate
8%
Certifications per freelancer
2
Most common languages
German, English, French
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 Adyen
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.
Adyen 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 (71%)
- Manufacturing (57%)
- Retail (57%)
- Banking and Finance (50%)
- Professional Services (50%)
- Telecommunication (50%)
- Automotive (43%)
- Media and Entertainment (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Payment platform
Adyen is a unified payment platform for accepting online, in-app and in-person payments. Companies use it to connect checkout, payment methods, risk controls, recurring billing, reporting and payouts through one system. Its APIs and payment components support commerce across regions and channels.
Core integrations
Adyen projects commonly involve API-based payment flows, hosted payment pages, Drop-in, Components and mobile SDKs. Specialists work with webhooks, API authentication, shopper data, recurring contracts and stored payment details. They also connect Adyen with commerce platforms, ERP systems, CRM tools and internal order services.
Typical use cases
- Implement card, wallet, bank transfer and local payment methods
- Build checkout and payment flows for web or mobile applications
- Configure recurring payments, subscriptions and payouts
- Connect risk rules, 3D Secure and payment status webhooks
- Create operational reporting and reconciliation workflows
Adyen fits retailers, marketplaces, travel businesses, subscription services and other companies that need consistent payment operations across sales channels.
When expertise matters
Companies bring in freelance Adyen specialists when a payment rollout must move quickly, an existing integration needs stabilisation, or a new market requires additional payment methods. They can also help during migrations, checkout redesigns, failed-payment investigations and reconciliation projects. In Germany, collaboration may involve local product, finance and compliance teams alongside remote delivery groups.
Skills around Adyen
Strong professionals combine Adyen knowledge with backend integration, frontend checkout work and secure handling of payment data. Useful adjacent skills include REST APIs, webhooks, JavaScript or TypeScript, mobile development, SQL, cloud infrastructure and e-commerce platforms. They understand how payment events move from shopper action through authorisation, capture, refund and settlement.
Signs of quality
Look for specialists who explain payment state transitions clearly and can show how they test declines, retries, refunds, disputes and webhook failures. They should separate client-side and server-side responsibilities, protect sensitive data and document operational ownership. Experience with monitoring, reconciliation and incident handling matters as much as a successful initial integration.
Frequently asked questions
What clients ask us most about Adyen — answered in short.
Adyen is used to accept and manage payments across online stores, mobile applications and physical points of sale. Companies use it for payment methods, checkout, recurring billing, risk management, refunds, payouts and financial reporting.
Adyen is often considered when a company wants one payment setup across online and in-person channels, regions and operating entities. Stripe may be preferred for a developer-focused setup or fast product integration, while PayPal is commonly added as a wallet and checkout option; the right choice depends on markets, payment methods, control needs and existing systems.
A strong Adyen specialist usually brings API integration, webhook design and secure payment-flow knowledge. Frontend checkout work, backend services, e-commerce platforms, cloud operations, SQL, reconciliation and observability are valuable adjacent skills.
The required depth depends on the scope rather than a fixed amount of experience. A basic checkout may need focused integration expertise, while multi-channel payments, subscriptions, marketplaces, migrations or complex reconciliation call for a specialist who has handled the full payment lifecycle.
Yes. Adyen integrations are well suited to remote collaboration when documentation, test access, secure credentials and clear ownership are in place. On-site workshops can still help with payment operations, finance processes or coordination across German and international teams.
Ask the specialist to explain authorisation, capture, refunds, disputes, recurring payments and webhook retries in practical terms. Review evidence of tested failure paths, monitoring, reconciliation and clear technical documentation rather than judging only an initial checkout demonstration.
Adyen supports cards, digital wallets, bank-based methods and regional payment options, with availability depending on the market and setup. A specialist should map the required methods to shopper locations, settlement needs, recurring use cases and the company’s checkout experience.
A reliable Adyen integration handles asynchronous webhooks, duplicate events, declined payments, retries, refunds and partial failures safely. It also includes secure credential management, clear payment-state modelling, monitoring, reconciliation and procedures for investigating operational issues.
The average hourly rate of freelancers in Germany who have used Adyen in their recent projects is 110 €, which corresponds to a daily rate of about 877 € based on an 8-hour working day.
Of the freelancers in Germany who have used Adyen in their recent projects, 83% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Germany who have used Adyen in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Germany who have used Adyen in their recent projects are German (100%), English (100%), and French (29%).
The most common industries among freelancers in Germany who have used Adyen in their recent projects are Information Technology (71%), Manufacturing (57%), and Retail (57%).
The most common business areas among freelancers in Germany who have used Adyen in their recent projects are Information Technology (100%), Product Development (86%), and Project Management (79%).
Main locations of FRATCH Experts, who have recently used Adyen
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
