Pact Experts in Germany
matched in minutes from over 15,000 CVs with the power of AIHire experts who design, implement, and maintain consumer-driven contract testing suites to secure your microservices architecture. Our specialists seamlessly integrate contract verification into your CI/CD pipelines, prevent breaking API changes, and foster collaboration between frontend and backend teams. Get matched with vetted, available freelancers in Germany tailored to your exact technical requirements.
Meet FRATCH Experts in Germany, who have recently used Pact
Kiriakos Krastillis
Last position:
Tech Lead / Architect : OTTO API Platform at OTTO
maturing their API Practices on both, a Business and Technology level. My role encompasses strategy, architecture, developer advocacy as well as hands on software engineering, enabling both technical teams and business leadership to adopt and act on API- centric principles effectively. Coincidentally, we also establish GitOps, DX and Platform Best practices with this project.
Highlights:
- Aligning executives with the initiative by clarifying strategy, replacing misconceptions and myths with facts, clarifying the value of existing assets and enabling informed decision-making
- Formulating a way forward for API Lifecycle Management at OTTO
- Driving platform progress and fostering developer engagement by hands-on engineering work towards strategic goals
API Lifecycle Management, Team Topologies, Organizational Evolution, Regulatory, Platform Advocate, Developer Platform, Communities of Practice, Terraform, Kotlin, Kafka, Kong, WSO2, Apigee, Gravitee, Backstage, AsyncAPI, OpenAPI, API Design, AWS, react, nodejs, typescript, redocly, reactive programming, CDC, golang, gingonic, GitOps, DX (developer experience), stakeholder management, roadmaps, workshops, discovery.
Prasad Tilloo
Last position:
Solution Architect / Senior Manager – DTC E-Commerce Platform at BRITA
- Led discovery phase and POC for Shopware to Shopify Plus migration across EMEA markets, evaluating platform suitability, technical architecture, and multi-brand/multi-country capabilities against business requirements.
- Designed reference architecture for Shopify Plus implementation incorporating headless front-end patterns (Vue.js, Nuxt.js), CMS integration (Magnolia), and Azure middleware (APIM, Functions, Logic Apps, Service Bus) for 11 EMEA markets.
- Defined migration strategy analyzing data mapping, cutover approach, and zero-downtime deployment patterns using Varnish caching, GitOps pipelines, and CI/CD orchestration across six vendor teams.
- Architected multi-tenant Shopify Plus governance model with centralized admin, localized storefront customization, and compliance controls (GDPR, data residency).
- Prototyped AI-driven search optimization (LLM.txt, JSON-LD) for product discoverability in Google AI results, demonstrating post-launch performance opportunities.
- Defined EMEA expansion roadmap for 15+ markets through C-level strategic workshops, identifying phased rollout, market-specific configurations, and resource requirements.
- Tech Stack: React, Nuxt.js, Vue.js, Magnolia CMS, Shopware, Shopify Plus, Azure (APIM, Functions, Logic Apps, Service Bus, Front Door), Varnish, SAP, MS Dynamics, Docker, Kubernetes, GitHub Actions, PostgreSQL, Kafka
Oleg Abrazhaev
Last position:
Staff Software Engineer at Kpler Germany GmbH
- Delivered a new notifications platform implementation built from scratch to replace existing and upcoming services
- Collaborating with other teams to integrate more domains
Tech stack:
- Data: Scala 3, Apache Kafka, Python, Airflow, Astronomer
- BE-FE: TypeScript, NestJS, Java, Spring Boot, Vue
- Dev-ops: AWS, PostgreSQL, Docker, GitHub Actions, Kubernetes, Helm, ArgoCD
Ramazan Cinardere
Last position:
Fullstack-/DevOps Engineer at BKA (Federal Criminal Police Office)
Development and further development of an internal platform for managing and providing technical resources, virtual machines, and infrastructure services. The platform supports self-service processes and covers functions that are conceptually comparable to cloud management solutions like Azure or AWS.
- Responsible involvement in the design, development, and implementation of new backend and frontend features
- Hands-on development with Java, Spring Boot, Python, and Angular
- Implementation of REST interfaces, business logic, validations, and integrations into existing system landscapes
- Further development of modern web interfaces with Angular, including connection to backend services
- Participation in architecture and design decisions within the team, especially with regard to scalability, maintainability, and clean interfaces
- Containerization and deployment of applications with Docker, Kubernetes, and Helm
- Support with CI/CD processes and deployment to Kubernetes-based environments
- Work in the environment of vSphere, Broadcom, GitLab CI/CD, ArgoCD, Maven, npm, and NuGet
- Close collaboration with developers, business teams, DevOps, and other technical stakeholders
- Analysis of technical requirements, deriving suitable solutions, and independent implementation in an agile team
- Use of GitHub Copilot to support code generation, refactoring, test case creation, and technical documentation
Methods/ tools/ technologies: Languages & frameworks: Java (21), Spring Boot (4.x), Python, Angular, Robot Framework, Kubernetes, Helm Persistence: PostgreSQL, MongoDB, Hibernate, Liquibase Architecture & communication: REST, gRPC, GraphQL, Apache Kafka, OpenAPI, Microservices, Event Driven, Domain Driven Design Cloud & infrastructure: Terraform, Docker, Rancher, Helm, Ansible Security: OAuth2, MS (Entra ID), web security, Keycloak (extensions for detailed group rights) DevOps: GitLab CI/CD, Ansible, Maven, Gradle, Grafana, Prometheus, Git, GitHub Copilot Testing & QM: JUnit, Robot Framework, automated component and integration tests, E2E tests with Playwright, Testcontainers, EasyMock Methodology & approach: Kanban, JIRA, Confluence, Clean Code
Dirk Bolte
Last position:
Senior Software Developer at congstar
- Mobile app backend development for end-customer mobile management
- Implementation of authentication methods
- Conversion of a monolith into microservices
- Operational support
- Technologies: Kotlin, Quarkus, Microprofile, Jackson, MariaDB, Redis, JSON, XML, SOAP, Maven, Git, GitLab CI, Splunk, Grafana, Jenkins, Kubernetes, Helm, Terraform, Microservices
Ayhan Gezer
Last position:
Senior QA Engineer / Test Automation Engineer / SDET at Rewe digital
Consulting, designing, and implementing the software testing lifecycle for multiple Android apps and backends Introducing test automation with Appium, SpringBootTest, RestAssured Setting up and managing emulators Developing an E2E library, an integration library, a Testcontainers library, and other libraries Developing, implementing, and advising on CI strategies Building the test environment with Testcontainers and virtualization Developing and implementing test cases for integration tests and end-to-end tests Establishing a maintainable test architecture with low entry barriers to simplify the creation of automated tests Some tools and technologies used: JUnit, RestAssured, Testcontainers, Kubedock, Appium, Android emulator, Jira Xray, Mockito, WireMock, Spring Framework, Kotlin
Martin Grambauer
Last position:
SAP Test Data Management Consultant at Siemens AG
End-to-end quality assurance in a global S/4HANA transformation program.
Automated test data setup, evaluation of search and generation solutions, and PoC execution (K2View, EPI-USE).
Coordination between Siemens teams and external partners, and structured knowledge transfer to internal stakeholders.
Created a basis for PoC decisions and sped up tool selection.
Standardized test data provisioning and noticeably reduced lead times.
Established governance for test data processes (policies, roles, KPIs).
Sustainable know-how transfer: empowered internal teams to operate solutions on their own.
Methods & technologies: S/4HANA, SAP, K2View, EPI-USE, test data management, data masking, data provisioning, test strategy, test management, coaching & enablement, Azure DevOps, Microsoft Office 365, Gemini.
Syamala Himabindu
Last position:
Fullstack Developer at BLG Logistics Group
As part of developing this project, various apps were developed for an IBM portal environment based on portlets and Spring Boot services, as well as the setup of a BI platform based on QlikView
Full-stack development of applications, technical analysis, refinement of requirements with the business department, coordination with the customer, DevOps
Team size: 8 people
Technology: Java 11.0, Maven, Git, Spring, Hibernate, JUNIT, Mockito, React, Jira, SQL, Spring Boot, CD/CI Jenkins, Kanban, Rest Api, Oracle
Environment: Eclipse, IBM Rational Application Developer
Fady Kuzman
Last position:
Senior Software Developer / Tech Lead at Specific Objects Technologies GmbH
- Project 1: Multi-Tenant SaaS Platform: Data Integration & Pricing Management
- Objective: New development of ELT pipeline (replacement for Java 6 legacy), integration of heterogeneous source systems (CSV, Excel, Email, external DBs), event-sourcing for complete auditability, multi-tenant architecture for tenant-capable data processing
- Challenge: Processing millions of records daily, audit compliance, data isolation between different tenants
- Solution: Stakeholder workshops for requirements analysis, event-driven architecture with Axon Framework and Apache Kafka, AWS services (EC2, S3, Lambda, SQS, API Gateway) for cloud integration, PostgreSQL with tenant-specific schemas for multi-tenant data isolation, REST API design with Spring Boot for external system integrations, comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit)
- Results: ELT performance improved from 30+ min to 1-5 min; 2-3 hours daily saved through workflow automation; 10-20 hours/week saved through event-sourcing auditability; 100% audit compliance; secure multi-tenant data isolation for 10+ tenants
- Project 2: Multi-tenant CRM System Modernization
- Objective: Migration of CRM system (20+ years PHP/MySQL) to Java microservices, Domain-Driven Design implementation, establishment of Test-Driven Development, multi-tenant-capable SaaS architecture for multiple customer tenants
- Challenge: Remodeling complex business logic, no existing test culture, scalable tenant management with data isolation
- Solution: Comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit), multi-tenant architecture with tenant-specific databases, REST API design with Spring Boot for cross-tenant integration, Kubernetes and Docker for container orchestration
- Results: 2× performance improvement; deployment time reduced from 40+ min to 5-7 min; migration without production outages; scalable multi-tenant solution for 15+ customer tenants
- Technologies: Java, Spring Boot 3.x, Angular, Apache Kafka, AWS (EC2, S3, Lambda, SQS, API Gateway), PostgreSQL, Axon Framework, Kubernetes, Docker, GitLab CI, REST API
Tobias Hofbauer
Last position:
Senior Java Web Developer at Deutsche Bahn
- Cloud-based Enterprise Service Bus/middleware development for communication between internal applications using Spring Boot and Apache Camel
- Use of AWS cloud computing technologies (e.g., EKS, EC2, S3)
- Development and configuration of modular base and adapter microservices with Camel DSL routing logic
- Designing interfaces and connecting via JMS (ActiveMQ, WebSphere MQ), REST, and SOAP
- Development of unit and integration tests
- Technical support for clients during requirement gathering
Arnauld Siewe
Last position:
PLC Programmer/Maintenance Technician at Tiernahrung Deuerer GmbH
- Planning of automation systems
- PLC programming (Simatic S7, TIA Portal: AWL, SCL, FUP, KOP)
- Visualization of automation systems (WinCC, Sirvac, GUI)
- Commissioning of systems with various drives and sensors
- Creating and maintaining documentation and training materials
Vishali Thangalapally
Last position:
Senior Analyst at Accenture
- Facilitated data retrieval for first-assist applications through an interface that fetches content based on client input criteria and loads it into the database via batch processing.
Artur Sopelnik
Last position:
Senior Consultant at MHP - A Porsche Company
Talha Yilmaz
Last position:
Remote part-time worker & pensioner
- Designing schematics, PCB layout, documentation
- Reviewing, debugging and fixing schematics and PCB layout
- Second source part searching and testing
Jürgen Brardt
Last position:
Software Developer at Inform AG
- Coaching junior developers
- Further development and custom extensions of a standard software (microservices (DDD) and partial monolith)
- Interface extensions
- Web services
- Test automation
- Design
- Used technologies: Java8, Java17, TypeScript, Python, PostgreSQL, Spring (Integration, Data, Boot), JPA, AWS (Cloud, Lambda, EC2, SQS/SNS), Microservices, Fitnesse/Cucumber, Gitlab
Discover over 15,000 top freelancers
Statistics of experts using Pact
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
1.9 years
Positions per freelancer
11
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Healthcare
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
93%
Master's degree or higher
36%
Certifications per freelancer
2
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 Pact
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
What is Pact contract testing
Pact is a consumer-driven contract testing tool used to secure communication between distributed systems. It allows teams to define expectations for HTTP requests and responses, as well as message queues, in a contract file. By testing these interactions in isolation, services can be deployed independently without relying on slow and unstable integration environments.
Ecosystem and tool integration
The framework supports multiple programming languages, allowing frontend and backend applications to share contracts seamlessly. It integrates tightly with build tools, CI/CD systems, and version control.
- Pact Broker and PactFlow for sharing and versioning contracts
- Language implementations including Pact JS, JVM, Go, Python, and .NET
- Test runner integrations with JUnit, Mocha, and Jest
- Stub servers for local development and offline testing
Signs your project needs Pact expertise
- Microservices break frequently in production due to uncoordinated API changes
- End-to-end integration tests are slow, flaky, and hard to maintain
- Teams are hesitant to deploy services independently out of fear of breaking downstream systems
- API documentation is outdated and does not match the actual implementation
Key deliverables of contract testing specialists
Specialists in this domain establish a robust testing strategy. They write consumer tests that generate contract files, configure provider tests to verify those contracts, and automate the entire workflow. They also set up the verification broker and implement safeguards to ensure that backward-incompatible API changes never reach production.
Relevancy in the German market
German industries, particularly in automotive, finance, and logistics, rely on complex, secure, and highly distributed software architectures. Implementing contract testing reduces the overhead of maintaining massive shared staging environments. For teams working in hybrid or remote setups across Germany, having formal contract specifications simplifies collaboration and accelerates release cycles.
Selecting the right professional
A top specialist possesses a strong background in API design, microservices, and modern CI/CD practices. They must be adept at working across different technology stacks and communicating effectively with both frontend and backend teams. True experts do not just write tests; they establish a culture of collaborative API design.
Frequently asked questions
Quick answers to the questions that come up most around Pact.
Pact is primarily used for consumer-driven contract testing to verify that services can communicate successfully. It replaces flaky end-to-end integration tests by checking that providers adhere to the expectations defined by consumers. This enables teams to deploy services independently with high confidence.
While integration testing requires deploying all services to a shared environment, Pact tests interactions in isolation using generated mock contracts. This approach is much faster, easier to debug, and avoids the environment stability issues common in traditional testing. It shifts integration verification earlier in the development lifecycle.
Yes, Pact supports a wide range of platforms, including JavaScript, Java, Go, Python, and .NET. This multi-language support is crucial for modern polyglot microservices architectures, allowing a Java backend to easily verify contracts generated by a React frontend.
The Pact Broker serves as a central repository for sharing and versioning contract files between consumer and provider projects. It tracks verification results and provides the critical data needed for the "can-i-deploy" tool, which prevents breaking changes from entering production.
No, contract testing projects are highly suited for remote collaboration. Since Pact defines clear, machine-readable contracts, teams across Germany or international locations can work asynchronously without needing constant synchronous alignment or shared physical workspaces.
A qualified Pact specialist should have deep expertise in API design, unit testing frameworks, and CI/CD pipelines. They must understand microservices communication patterns and feel comfortable working with mock servers, stubbing, and broker configuration.
Introducing Pact to an existing system can vary depending on architectural complexity, but a pilot project can often be set up within a few weeks. A specialist will typically start with one critical consumer-provider pair to demonstrate immediate value before scaling the pattern.
While Pact is designed for APIs where you control both the consumer and the provider, it can be adapted for third-party integrations using bi-directional contract testing or adapter patterns. However, its primary strength lies in securing internal service-to-service communication where teams can collaborate on contract evolutionary changes.
The average hourly rate of freelancers in Germany who have used Pact in their recent projects is 88 €, which corresponds to a daily rate of about 700 € based on an 8-hour working day.
Of the freelancers in Germany who have used Pact in their recent projects, 93% hold at least a Bachelor's degree and 36% hold at least a Master's degree.
On average, freelancers in Germany who have used Pact in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Germany who have used Pact in their recent projects are German (100%), English (100%), and French (13%).
The most common industries among freelancers in Germany who have used Pact in their recent projects are Information Technology (94%), Retail (56%), and Healthcare (50%).
The most common business areas among freelancers in Germany who have used Pact in their recent projects are Information Technology (100%), Product Development (94%), and Quality Assurance (75%).
Main locations of FRATCH Experts, who have recently used Pact
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.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
