Postman Experts in Essen
for reliable API delivery, matched in minutes with vetted freelancersHire experts who design API collections, automate Postman test suites and connect documentation with CI/CD workflows. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical and project needs.
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
Miguel Angel J.
Last position:
Agile Sub Project Manager at Cognizant Mobility
- Main contact for the customer for all matters relating to the delivery of services in the sub-area
- Responsible for service delivery in the sub-area and coordinating the delivery results to be achieved (project planning)
- Validation of the sprint planning of the associated teams against the project plan
- First escalation point when estimates cannot be agreed upon
- Resource management for 17 project employees
- Continuous process improvement
- Risk management of any kind that could endanger delivery
- Reporting of results internally and to the customer, such as project execution and milestone achievement
- Responsible for the budget in the sub-area (revenue, profit)
- Identifying and implementing financial optimization needs
- Ensuring that the Jira elements in the sub-area are maintained according to financial and agile guidelines
- Set up an Informatica Core team
- Project management for various migration projects
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).
Discover over 15,000 top freelancers
Statistics of experts using Postman
Aggregated from the professional profiles of matched freelancers.
Experience
17 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: 92%)
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Essen 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 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 29 Oct 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 workflows
Postman is a workspace for designing, sending, testing and documenting API requests. Teams use it to validate REST, GraphQL and SOAP services, share collections, manage environments and make integration work easier to review. The Postman API Platform supports the full path from early endpoint checks to repeatable delivery.
Collections and tests
Experts structure collections around business flows rather than isolated requests. They define variables, authentication methods, pre-request scripts and test assertions, then use the Collection Runner to check responses across environments. Newman can run the same collections from a terminal or build pipeline.
- Create reusable collections for internal and external APIs
- Test status codes, schemas, headers and response data
- Set up environment variables and secure credentials
- Generate clear API documentation for consuming teams
Ecosystem skills
Strong Postman specialists understand the systems behind each request. Their work often includes OpenAPI definitions, JSON Schema, OAuth, API keys, webhooks and mock servers. They may connect Postman with Git, Newman, Jenkins, GitHub Actions or other CI/CD tools, while keeping secrets and test data under control.
When to bring help
Companies often need freelance expertise when an API program is growing faster than its testing and documentation practices. Specialists can establish collection standards, rescue unreliable test suites, prepare partner integrations or add API checks to an existing delivery process. In Essen, this can support product, logistics, manufacturing and service teams working with distributed stakeholders.
- Standardize API checks across several teams
- Turn manual endpoint checks into automated tests
- Prepare a partner or customer API for integration
- Review authentication, environments and release gates
Remote collaboration
Postman work is well suited to remote collaboration because collections, documentation and test results can be shared centrally. A freelancer working with an Essen-based team should still align closely with product, security and software specialists through clear naming, review rules and written decisions. German or English communication can be agreed around the project’s stakeholders and documentation.
Quality signals
A capable professional does more than send requests and record successful responses. They model realistic failure cases, isolate test data, protect credentials, explain assumptions and keep collections maintainable as APIs change. Ask for examples of contract testing, CI execution, documentation ownership and troubleshooting across environments before engaging a specialist.
Frequently asked questions
Curious about Postman? Here are the answers that come up again and again.
Postman is used to explore endpoints, send requests, inspect responses and share repeatable API workflows. Companies also use it for automated checks, mock servers, documentation and collaboration between teams that provide or consume services.
Postman offers a broad workspace for collections, tests, documentation, mocks and team collaboration. Insomnia may appeal to teams that prefer a lighter request client, while SoapUI is often considered for SOAP-heavy testing; the right choice depends on protocols, governance and existing CI workflows.
Postman work benefits from knowledge of REST, GraphQL, HTTP, JSON, OpenAPI and authentication methods such as OAuth. Useful adjacent skills include JavaScript for scripts, Newman for command-line execution, Git and CI/CD systems for automated delivery.
Postman tasks can be simple when a team only needs request collections, but complex API programs need a specialist who understands test design, environments, contracts and release automation. Assess the scope, number of integrations and consequences of failed releases before choosing the required level of expertise.
Postman supports remote work because collections, documentation and test results can be reviewed online. Remote collaboration works best when the specialist has access to representative environments, clear ownership rules and regular contact with the Essen-based product and technical teams.
Postman deliverables should be readable, reusable and safe to run in every agreed environment. Review naming conventions, variable handling, negative tests, authentication practices, documentation quality and whether the collections run reliably in CI rather than only on a local machine.
Postman can cover many functional and integration checks, especially when collections are executed with Newman in a pipeline. It does not replace every testing approach, such as deep performance testing, specialized security assessment or application-level unit tests, so it should form part of a wider quality strategy.
Postman API Platform extends beyond the desktop request client with shared workspaces, governance features, documentation and collaboration workflows. Specialists should be comfortable moving between local investigation, team-owned collections, automated runs and the API lifecycle practices the client already uses.
The average hourly rate of freelancers in Essen, Germany who have used Postman in their recent projects is 74 €, which corresponds to a daily rate of about 595 € 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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Philipp Thomaschewski
FRATCH CEO
