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PAYONE Experts in Germany

in minutes from over 15,000 CVs with the power of AI

Hire experts who integrate PAYONE for online checkout, recurring payments, refunds, and payment status handling, while keeping systems stable across shop, ERP, and finance flows. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Germany, who have recently used PAYONE

Verified expert

Nemanja Milenković

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Senior / Lead AI Engineer | Applied GenAI, RAG, AI Agents & AI Platform Engineering

Dortmund
Nemanja Milenković

Last position:

AI Engineer / Senior Backend Engineer at Intelycx

Manufacturing intelligence platform with enterprise workflows, RAG, real-time AI assistant features, and multi-repository backend architecture.

  • Built and extended production AI/backend services with Django, DRF, FastAPI, GraphQL, Celery, PostgreSQL, MySQL, Redis, and WebSockets across a modular multi-repository platform.
  • Contributed to ARIS V2, a real-time manufacturing AI assistant using LangChain, LangGraph, MCP tool orchestration, planning/execution flows, OpenAI, AWS Bedrock, Qdrant, and Elasticsearch/OpenSearch-backed retrieval.
  • Supported rollout expansion from ARIS V1 in 4 of 17 client production plants to ARIS V2 currently active in 13 of 17 plants, increasing real-world deployment coverage to more than 50% of the client footprint.
  • Worked on document-grounded RAG functionality including ingestion, OCR, chunking, embeddings, indexing, retrieval, reranking, and grounded answer generation for industrial workflows.

Stack: Python, Django, DRF, FastAPI, LangChain, LangGraph, GraphQL, Celery, WebSockets, OpenAI, AWS Bedrock, Qdrant, Elasticsearch/OpenSearch, PostgreSQL, MySQL, Redis, Docker.

Verified expert

Wael Mansour

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Test Manager

Waiblingen
Wael Mansour

Last position:

Test Manager at Schwarz IT

  • Design, planning, and test case analysis
  • Integration testing
  • Coordination of UAT in the lab and on site
  • Creation of HW and SW test catalogs
  • Communication of test results from REST services with the SAP team
  • Support for branches in the EU until rollout
  • Coordination of defect management and SW updates with the involved vendors
  • Checking the configuration of the charging stations in the backend software for different countries
  • Continuous reporting of the quality status to project management
  • Documentation of the user manual in English and German
  • Tools: Confluence, be.Energised, OCPP Postman, OPI, CCV (payone.elavon), Excel, it4you
Verified expert

Gwen Glaser

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Senior Consultant

Leipzig
Gwen Glaser

Last position:

Senior Ruby on Rails & DevOps Developer at Sapiens

Further development of a software solution for managing test requests and test notifications according to §106d SGB V for the Hamburg Association of Statutory Health Insurance Physicians.

  • Developed numerous features, performance optimizations, refactoring, error analysis
  • Refactored the dev container setup
  • Optimized the GitLab CI build pipeline
  • Contributed optimizations to the team workflow
Verified expert

Sascha Jürgens

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Agile Coach & Partner

Grasbrunn
Sascha Jürgens

Last position:

Agile Coach & Partner at Agisolve GmbH – Pragmatic Agility® | Edler & Stiegler GmbH | CTN Consulting

  • Create a product and service portfolio delivering a 360 degree approach to digital corporate sustainability covering KPI management, CSRD reporting and sustainable strategy
  • Create vision and business case
  • Onboard and align business partners, negotiate contracts
  • Set up partner network as self-organized agile team
  • Co-develop product and service portfolio
  • Coordinate sales and marketing, go-to-market strategy and roadmap
Verified expert

Igor Propisnov

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Senior Frontend Developer

Rüsselsheim
Igor Propisnov

Last position:

Senior Frontend Developer at Objego GmbH

  • Within the project, Objego's digital platform for real estate management was further developed.

  • Further development of various software modules within the application.

  • Continuous improvement and optimization of existing functionalities to enhance performance and user experience.

  • Design and implementation of unit tests to ensure code quality and stability.

  • Close collaboration with the QA team to quickly fix bugs.

  • Implementation of new features in coordination with stakeholders and end users.

  • Active member of the Scrum team with a focus on agile methods and continuous improvement of the software.

  • Technologies: Angular 16/17, Material, Angular CDK, Angular Elements, Nx, NgRx, NgNeat, NgX-Translate, NgX-Charts, NgX-Lottie, NgX-Markdown, Sentry, Azure AI Form Recognizer, Lodash, Dayjs, Flatpickr, Lottie-Web, Mixpanel, RxJS, Prettier, ESLint, Webpack, Cypress, Playwright, Jest, Husky, TypeScript, Node.js, Zone.js, Docker, Spring Boot, Git, Figma, Figma Token, Storybook, Jira, Confluence, Atlassian, Gitlab CI/CD, Codecov, Custom Design System, Mockoon.

Verified expert

Nicole Bernhard

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HR Interim Manager

Frankfurt
Nicole Bernhard

Last position:

HR Business Partner / Senior Expert in Executive Management at Deutsche Telekom AG

HR Business Partner - Executive Management

  • Recruiting
  • Compensation & Benefits
  • Talent & Performance Management
  • Succession Management
  • Change Management
  • Onboarding
  • Strong business focus
  • Hands-on HR Manager

Discover over 15,000 top freelancers

Statistics of experts using PAYONE

Aggregated from the professional profiles of matched freelancers.

Experience

22 years

Position duration

2.7 years

Positions per freelancer

14

Top business areas

Information Technology, Product Development, Project Management

Top industries

Information Technology, Manufacturing, Retail

Certification focus areas

Information Technology, Project Management, Product Development

Bachelor's degree or higher

75%

Master's degree or higher

50%

Doctorate

25%

Certifications per freelancer

2

Most common languages

German, English, Spanish

Speak two or more languages

100%

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 1 2 3 4
<€480 €640-​720 €720-​800 €800-​880 €880+

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 PAYONE

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 771 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 760 €

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

PAYONE in practice

PAYONE is used to handle payments for webshops, subscriptions, and point-of-sale flows. It helps companies accept card payments, SEPA-based payments, and other common methods through one setup. Strong experts make sure the checkout is clean, reliable, and easy to maintain.

Typical work

  • Payment gateway setup and merchant configuration
  • Checkout integration for shop systems
  • Refunds, captures, and cancellation flows
  • Webhooks, status updates, and reconciliation
  • Testing in staging and production rollouts

Ecosystem skills

PAYONE work often sits next to shop systems, backend services, and finance tooling. Experts should understand API calls, token handling, payment states, and error cases that affect customer journeys. Many projects also need experience with Magento, Shopware, SAP-related flows, or custom commerce stacks.

When to bring in help

Companies usually bring in freelance specialists when a checkout must go live quickly, a legacy payment flow needs cleanup, or a migration from another provider is underway. In Germany, this is common in retail, e-commerce, and recurring-billing businesses that need precise payment handling and clear communication with internal teams.

What strong specialists do

Good PAYONE professionals think beyond the first integration. They check edge cases such as failed authorizations, duplicate notifications, and partial refunds, then document the flow for support and finance teams. They also keep an eye on security, logging, and clean handoffs between systems.

Signs you need PAYONE expertise

  • Payments fail in checkout without clear error handling
  • Refunds or captures do not match finance records
  • You are switching providers or modernizing an old integration
  • Support cannot trace payment events quickly
  • The team needs a stable launch with less risk
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Frequently asked questions

Key details about PAYONE, drawn from the questions we get asked most.

PAYONE is used to process payments in online shops, recurring billing flows, and in-store payment scenarios. It helps companies connect payment methods, handle transaction states, and manage refunds or captures in one flow. That makes it useful when payment reliability affects sales or finance operations.

PAYONE is used in both online and in-person payment scenarios. Many companies know it from checkout integration in commerce systems, but it also appears in POS-linked setups and mixed retail environments. A good specialist understands how those flows differ even when they share the same payment backend.

PAYONE is often chosen when a company wants a payment setup that fits German and European commerce processes. Compared with broader global providers, the main question is usually not feature count but fit: merchant setup, supported methods, operational handling, and how well the integration matches the existing shop or ERP landscape. The right choice depends on the payment flow, not the brand name alone.

A strong PAYONE specialist usually knows API integration, webhook handling, payment state logic, and basic security practices. Experience with shop systems, backend services, and finance reconciliation helps a lot. If the project is complex, knowledge of testing and release coordination matters just as much as the payment setup itself.

A simple PAYONE integration can be handled by someone who has done similar payment work before and understands the target shop system. More complex projects need deeper experience with edge cases, migration work, and downstream finance processes. The real test is whether the expert has shipped payment flows, not whether they know the name.

Yes, PAYONE work is often done remotely, especially for integration, testing, and documentation. For German teams, remote collaboration usually works well if the specialist can communicate clearly, review payment logs carefully, and coordinate with product, commerce, and finance stakeholders. On-site time can still help during launch or when a legacy system needs close access.

Look for a PAYONE freelancer who can explain payment states, edge cases, and the full flow from checkout to reconciliation. Strong work is visible in clean error handling, readable integration code or configuration, and clear documentation for support teams. Ask how they test failed payments, retries, and refunds before they touch production.

Before joining a PAYONE project, a freelancer should understand the shop or application stack, the payment methods in scope, and the expected handoff to finance or support. It also helps to know whether the project is a new integration, a migration, or a repair job. Clear access to logs, test systems, and stakeholders saves time on every payment project.

The average hourly rate of freelancers in Germany who have used PAYONE 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 Germany who have used PAYONE in their recent projects, 75% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 25% hold a doctorate.

On average, freelancers in Germany who have used PAYONE in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.7 years.

The most common languages among freelancers in Germany who have used PAYONE in their recent projects are German (100%), English (100%), and Spanish (29%).

The most common industries among freelancers in Germany who have used PAYONE in their recent projects are Information Technology (86%), Manufacturing (86%), and Retail (86%).

The most common business areas among freelancers in Germany who have used PAYONE in their recent projects are Information Technology (86%), Product Development (86%), and Project Management (71%).

Main locations of FRATCH Experts, who have recently used PAYONE

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

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Philipp Thomaschewski

FRATCH CEO

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