Postman Expert in Essen
for reliable API testing, matched in minutes from over 15,000 CVsHire experts who design API collections, automate tests and document REST or GraphQL services with Postman. FRATCH matches you quickly and precisely with vetted, available freelancers for remote or on-site collaboration in Essen.
Meet FRATCH Experts in Essen, who have recently used Postman
Humayun S.
Last position:
Senior Test Manager - Lead at Star Finanz GmbH
- QA Lead for end-to-end quality assurance of the Sparkasse & Sparkasse Business banking apps (iOS/Android); design and implementation of the Test Strategy including functional testing, regression testing, and UAT for eID, Push Notifications, and white-label components
- Creation and maintenance of test concepts and test plans in TestRail; structured Defect Management and error analysis; stakeholder management and risk management for the early identification of critical quality risks
- Accessibility Testing according to WCAG 2.1 (iOS/Android); coordination of AI-supported test automation and optimization of test processes to shorten release cycles
- Release Management: planning, management, and coordination of all test activities; status reporting to management and stakeholders; quality assessment of releases and release recommendations in an Agile/Scrum environment
- Challenge: Highly complex build and release process across several Sparkasse institutions; close coordination with the DevOps team to stabilize the CI/CD pipeline and ensure reproducible test builds before every release.
Tools: Jira, Confluence, TestRail, Android Studio, Xcode, Firebase, Jenkins, GA4
- Success: Successful launch of the eID authentication process - quality assurance ensured for 50+ Sparkasse institutions
Anupriya P.
Last position:
Senior Software Engineer at Telefonica Germany
(Maternity/Parental Leave: July 2023 – Aug 2024)
- Domain: Payment Domain | Client: Telefonica Germany
- Project: General Payment Service
The General Payment Service is responsible for processing of online payments via external payment service provider like Safer pay and PayPal
- Developed Design of Use (DOU) and interface contract documentation, ensuring clarity and compliance across system integrations
- Designed and delivered REST/SOAP web services with Spring Boot and Spring Data JPA, publishing Swagger contracts through WSO2 API Gateway to improve accessibility and governance.
- Spearheaded the on-premises to AWS Cloud migration, re-platforming from Oracle to PostgreSQL on AWS RDS and deploying services on EC2, improving scalability and cost efficiency.
- Containerized microservices using Docker and orchestrated deployments with Kubernetes, streamlining deployment pipelines and improving system reliability.
- Implemented proactive monitoring and logging via AWS CloudWatch and Kibana, ensuring stability and performance during cutover.
- Enhanced collaboration through code reviews and peer reviews, promoting maintainability and clean coding standards.
- Strengthened quality by writing comprehensive JUnit tests and preparing detailed test cases enabling early defect detection
- Delivered automated API testing with Ready API, Postman, and SOAPUI, and conducted performance testing with JMeter, ensuring reliability in high-transaction environments.
Adem S.
Last position:
IT Consultant (Test Manager) & CEO at Trikolon Consulting GmbH
- Development and implementation of test concepts for complex, multi-layered systems
- Creation of regular management reports and presentations for stakeholders and clients
- Technical and disciplinary leadership of international test teams (coordination, coaching, resource planning)
- Responsibility for quality assurance across multiple test levels (unit, integration, system, and acceptance tests)
- Design of test cases and test plans in Azure DevOps; ensuring traceability and coverage
- Use of BDD approaches (Gherkin/Cucumber) to prepare test automation
- Building a test automation architecture with Playwright and integrating new tests into CI/CD pipelines
- Performing API tests (REST) and tests for mobile/PWA applications
- Setup and maintenance of test environments across multiple stages (integration, QA, UAT, pre-production)
- Test data management (synthetic and production-like data), ensuring consistency and reproducibility
- Collaboration with DevOps teams for containerization (Docker/OpenShift) and CI/CD integration
- Working under SAFe & Scrum, closely coordinating with product owners and DevOps teams
- Active participation in PI plannings, sprint reviews, and retrospectives
- Promoting an agile QA culture through coaching and knowledge sharing
- Introducing scalable test automation with Playwright → significant reduction of manual testing efforts
- Increasing test transparency through clean defect and reporting management in Azure DevOps
- Improved release quality through an end-to-end QA strategy and automated regression tests
- Strategic leadership of Trikolon Consulting GmbH and responsibility for finance, personnel, and business development
Andreas A.
Last position:
IT-Application Manager at IHK-GfI
- Gathering, analyzing, specifying, and prioritizing requirements for the 'Archive and Delete' module of the Chambers of Industry and Commerce in a Scrum team
- Capturing and specifying screen/form designs, functionality, and data types in Confluence, as well as creating user stories in Jira
- Preparing PowerPoint presentations for the 'Archive and Delete' module
- Coordinating and supporting the Chambers of Industry and Commerce in the implementation of the module
- Writing SQL scripts for an Oracle database
- Technologies used: Scrum, Confluence, Jira, MS Office, Postman, JavaScript, REST API, JSON, DBVisualizer, SQL
Musa M.
Last position:
Qa Engineer at TD Bank
- Designed and implemented an automation test framework using Junit and Maven, developing BDD scripts with Cucumber and reusable methods for application behavior.
- Created test data using automation scripts with Selenium WebDriver, Java, and Python, validating UI components, popup windows, and mouse movements.
- Conducted API functional testing of RESTful web services using Postman.
- Automated test execution using Maven and integrated with Jenkins, achieving a 20% reduction in regression testing time.
Mohamad A.
Last position:
Systems Engineer for Network Security at Bechtle AG
- SD-WAN solution by Aruba – Swiss energy company (330 sites): design and implementation of an SD-WAN branch solution with Aruba 9004 gateways, encrypted overlay, policy-based routing, WAN load balancing, and centralized management via Aruba Central.
- LAN/WLAN & security – schools in Germany (9 sites): deployment of Aruba switches & AP-505, FortiGate 80F firewalls; setup of Checkmk monitoring, incident and change management, and secure admin access (BeyondTrust).
- Multi-site security – energy billing company (20 sites): deployment of a complete Fortinet solution (FortiGate HA cluster, FortiSwitch PoE, FortiAP), IPsec remote-access VPN via FortiClient, centralized management via FortiCloud, IntraID authentication, operations and incident management.
- Data center migration – German client: migration of data center switches (Mellanox), firewall cluster, and OfficeConnect switches to a new data center; securing configurations, implementing HA designs, testing, monitoring, and coordinated change and incident processes. Setup of two new 6300 M VSX clustered switches.
- Data center security – university hospital: implementation of a high-availability FortiGate 400F firewall cluster across three data centers; security policy design, operational support, and change/incident management.
- Enterprise campus & network access control – manufacturing company in Germany: introduction of Aruba ClearPass NAC, setup of a VSX-based switching architecture, secure WLAN access with MPSK, and integration into existing networks.
- EU client (Germany & Poland) – Sophos firewalls: operations, incident and change management of Sophos firewalls including IPsec VPN; troubleshooting and ongoing optimization of security configurations.
- Network modernization – pharmacy client in Germany: design and rollout of core and access switching (Mellanox, Aruba Instant On), migration from Sophos to Fortinet firewalls, network segmentation, and security hardening.
Dmitrii S.
Last position:
Senior Developer/Team Lead at Devexperts
Project Livebash (2021-12-01–2023-12-31)
Development and design of the core system
Code reviews
Developer management
CI/CD
Client communication
Leading epics
Speaking at conferences
Managing the production system
Interviewing project developers
Outcome: production system
Technologies and tools: Java 11, Java 17, Kotlin, Spring Boot, TeamCity, Gradle, AWS DynamoDB, JUnit, Mockito, Docker, Docker Compose, AWS SQS, AWS EC2, AWS S3, AWS MediaLive, Ethereum, Postman
Project Robinhood (2024-01-01–2024-05-31)
Customization and development of product features for specific clients
Interviews with project developers
Technologies and tools: Java 17, Java RX, Kotlin, Spring Boot, TeamCity, Gradle, JUnit, Mockito, Docker, Docker Compose, PostgreSQL
Projects Sway, Tickmill, Pepperstone, UCapital (2024-06-01–present)
Customization and development of product features for specific clients
Bug fixes
Porting tickets from the product
Feature development
Technologies and tools: Java 17, Java RX, Kotlin, Spring Boot, TeamCity, Gradle, JUnit, Mockito, Docker, Docker Compose, PostgreSQL
Aida K.
Last position:
Sales Assistant at Bakery Schollin
- Customer service and point-of-sale (cash register) operations
- Inventory management and stock organization
- Strengthened German language skills through daily customer interaction
- Worked collaboratively in a fast-paced, team-oriented environment
Stefan W.
Last position:
Project team member at Environmental service provider
- Implementation and maintenance of an order management system
- RDBMS Oracle 19c
- Oracle Forms/Reports 12c/14c
- Oracle SQL
- XML processing
Ahmet S.
Last position:
Frontend Developer at Isbul.net
- Migrated a live system to React and Next.js.
- Implemented server-side rendering (SSR).
- Integrated single sign-on (SSO).
Miguel Angel J.
Last position:
Agile Sub Project Manager at Cognizant Mobility
- Contact person for the client for all matters related to delivery of services from the subproject
- Responsible for delivering the subproject and coordinating the deliverables to be achieved (project planning)
- Validating sprint planning of the teams against the project plan
- First escalation point if estimates cannot be agreed
- Resource management for 17 project staff
- Continuous process improvement
- Risk management of any kind that can threaten delivery
- Reporting results internally and to the client, e.g. project execution and milestone achievement
- Responsible for the budget in his subproject (revenue, profit)
- Identifying and implementing financial optimization needs
- Ensuring that Jira items are maintained according to financial and agile guidelines in his subproject
- Building an Informatica core team
- Project management for various migration projects
Discover over 15,000 top freelancers
Statistics of experts using Postman
Aggregated from the professional profiles of matched freelancers.
Experience
17 years (Germany: 16 years)
Position duration
1.9 years (Germany: 1.8 years)
Positions per freelancer
10 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Project Management, Information Technology, Product Development
Bachelor's degree or higher
91% (Germany: 93%)
Master's degree or higher
55% (Germany: 59%)
Certifications per freelancer
3
Most common languages
English, German, Turkish
Speak two or more languages
100% (Germany: 97%)
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 Essen 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 Essen using Postman
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.
Postman 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 (100%)
- Banking and Finance (73%)
- Manufacturing (45%)
- Professional Services (45%)
- Automotive (36%)
- Education (36%)
- Government and Administration (36%)
- Food and Beverage (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
API testing and collaboration
Postman is a platform for designing, sending, testing and documenting API requests. Teams use it to validate REST, GraphQL and other HTTP services before applications reach production. Collections, environments and shared workspaces keep exploratory checks aligned across product and delivery teams.
Core capabilities
Strong Postman professionals work across the complete API testing workflow:
- Build collections for functional and regression testing
- Configure variables, environments, authentication and request data
- Write JavaScript-based tests and pre-request scripts
- Run collections in CI pipelines with Newman or Postman CLI
- Publish clear API documentation for internal and external users
Ecosystem and tooling
Postman connects API work with OpenAPI definitions, mock servers, monitors and collection runners. It can fit into Git-based workflows and CI tools through Newman or the Postman CLI. Useful adjacent knowledge includes HTTP, JSON, OAuth, webhooks, databases and the service framework behind the API.
When companies need specialists
Companies often bring in freelance Postman expertise when an API portfolio is growing faster than its test coverage or documentation. A specialist can establish collection standards, turn manual checks into repeatable automation and prepare contract tests for distributed services. This is valuable during platform migrations, partner integrations and release-critical projects.
What quality looks like
A capable professional keeps requests readable, environments separated and secrets out of collections. Tests should check meaningful status codes, schemas, business rules and failure paths rather than only confirm that a response exists. Good documentation explains authentication, parameters, examples and expected errors so another team can use the service without close support.
Working in Essen
Postman work is well suited to remote collaboration because collections, environments and documentation can be reviewed asynchronously. For companies in Essen, on-site workshops can still help align product, quality and API teams, especially when services span legacy systems and newer cloud components. Clear English is common in technical delivery; German may matter for stakeholder communication and internal documentation.
Frequently asked questions
Curious about Postman? Here are the answers that come up again and again.
Postman is used to send API requests, inspect responses and verify that services behave as intended. Companies also use it to create shared collections, generate documentation, build mock servers and run automated checks for REST and GraphQL APIs.
Postman combines request exploration, team workspaces, collection-based testing, documentation and automation in one workflow. Insomnia can appeal to teams seeking a lightweight API client, while SoapUI is often considered for service testing with a stronger SOAP focus; the right choice depends on protocols, governance and existing tooling.
A strong Postman specialist should understand HTTP, JSON, authentication methods such as OAuth, and API design principles. Experience with JavaScript test scripts, OpenAPI, Git, CI pipelines, databases and the application framework behind the service makes the work more useful.
The required depth depends on the assignment. A simple collection may need focused API testing knowledge, while a large integration or migration calls for someone who can design test strategy, manage environments, automate runs and work with service owners.
Yes. Postman collections, environments, documentation and test results are easy to review remotely when access rules and ownership are clear. On-site sessions in Essen can help with discovery and stakeholder alignment, while most implementation can continue through distributed collaboration.
Review whether the collections are structured, reusable and safe to share. Ask how the professional handles secrets, variable scopes, negative cases, schema checks, test data and CI execution. A quality-focused approach produces actionable failures instead of superficial response checks.
Postman can run automated collections through Newman or the Postman CLI and can be connected to common CI workflows. A specialist should also know how to manage environment configuration, credentials, test isolation, reporting and failures that need investigation rather than automatic retries.
Freelancers working with Postman should clarify collection ownership, workspace permissions, API specifications and the separation between test and production environments. They should also agree on naming conventions, documentation standards and how test results will be shared with product, quality and service teams.
The average hourly rate of freelancers in Essen, Germany who have used Postman in their recent projects is 75 €, which corresponds to a daily rate of about 596 € based on an 8-hour working day.
Of the freelancers in Essen, Germany who have used Postman in their recent projects, 91% hold at least a Bachelor's degree and 55% hold at least a Master's degree.
On average, freelancers in Essen, Germany who have used Postman 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 Essen, Germany who have used Postman in their recent projects are English (100%), German (91%), and Turkish (27%).
The most common industries among freelancers in Essen, Germany who have used Postman in their recent projects are Information Technology (100%), Banking and Finance (73%), and Manufacturing (45%).
The most common business areas among freelancers in Essen, Germany who have used Postman in their recent projects are Information Technology (91%), Product Development (82%), and Project Management (73%).
Main locations of FRATCH Experts, who have recently used Postman
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 Countries:
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FRATCH CEO
