Postman Experts in Berlin
for reliable API testing, matched in minutes with vetted and available freelancersHire experts who design API collections, automate regression checks with Newman, and connect Postman workflows with CI/CD pipelines. Get fast, precise matching with vetted, available freelancers for your project.
Meet FRATCH Experts in Berlin, who have recently used Postman
William N.
Last position:
Power BI Solutions Architect/Engineer & AI Consultant at AVERDUNG GmbH
- Redesign of the company’s BI infrastructure: replacement of a fragmented landscape of manually maintained Excel solutions and CSV imports with a centralized Power BI environment using a unified data model as the company-wide single source of truth
- Consolidation of previously isolated reporting logic in a central semantic model – elimination of redundant files, manual data transfers and inconsistent metrics across departments
- Forecasting & Planning: Design and implementation of company-wide liquidity planning in Power BI – from business logic to a fully automated, data-source-driven planning model replacing the previous manual Excel process; enabling rolling forecasts and continuously up-to-date cash flow transparency for management
- Optimization of existing Power BI dashboards in terms of performance, structure and analytical value using an AI-native approach
- Analysis and improvement of the data model, including data quality analyses, data cleansing and consistent modeling using Star Schema, DAX and Power Query
- Incident & Anomaly Analysis: Identification, investigation and explanation of data anomalies, including root-cause analysis and specific recommendations for action
- AI Solution Architecture: Connecting Business Central and Power BI to LangDock via MCP (Model Context Protocol) for AI-supported data usage
- Development of a historical data layer as a basis for trend and time-series analyses
- AI-supported automation: Design and development of AI skills, agents, loops and processes for the automated analysis and interpretation of reports
- Automated reporting workflow: Setup of scheduled, automated email delivery of AI-generated analyses and recommendations to stakeholders
- Gathering and documentation of business requirements and coordination with business departments and IT as part of requirements engineering / product owner activities
- Breaking down overall requirements into clearly defined work packages and tasks
- Definition, prioritization and management of milestones throughout the entire project lifecycle
Tools: POWER BI, M365, Copilot Studio, MIRO, Microsoft Business Central, Microsoft Fabric, Claude AI, ChatGPT, LangDock, MS VS Code
Vili D.
Last position:
Technical Lead, Data Engineer at Mercedes-Benz Consulting
Optimized the data architecture (Medallion) to better decouple processing steps and improve transparency and reproducibility
Ensured the technical quality of data processing in Databricks by introducing schema enforcement, data quality checks, and a structured data architecture
Pipeline orchestration with Azure Data Factory
Improved and automated the development and deployment process by integrating Git and GitHub Actions
Technical leadership of the Data Engineering team (3 employees)
Led workshops to optimize and stabilize the data platform and development process
Collected and prioritized new requests and maintained the product backlog
Technologies: Microsoft Azure (Data Lake, Data Factory), Databricks, Apache Spark (PySpark), Python, SQL, Git, Confluence, Power BI, Power Apps, Dataverse, MS Sharepoint, Mural
Bidya B.
Last position:
Product Manager – Payments & Platform at Pipedrive
CRM and revenue platform managing billing and subscription workflows.
- Scaled payments infrastructure across data products, direct debit expansion and automated abuse prevention, generating $416K in annualized operational savings ($8K/week) by eliminating redundant gateway calls.
- Owned backlog and sprint execution for autonomous checkout abuse detection pipelines, designing real-time risk guardrails and velocity heuristics that blocked card testing attacks.
- Architected enterprise billing migrator user stories and data reconciliation mechanisms, achieving zero-downtime subscription state transitions and cutting $60K in infrastructure overhead.
- Expanded European direct debit (SEPA) payment capabilities, managing cross-squad API dependencies and automated webhook error-handling to eliminate checkout friction.
Hubertus S.
Last position:
Senior Product Manager AI
Workflow-automation SaaS for operations teams (Berlin, 120 people); full-time freelance engagement reporting to the CEO: an initial 12-month interim mandate, extended twice through the AI build-out; owned product for one squad and coached the other product managers on process.
- Led generative AI (LLM) integration into the core product: from LLM-powered steps to natural-language workflow authoring and step-level automation suggestions, plus AI-managed dynamic workflows, shipped behind eval gates with human-in-the-loop fallbacks: AI-drafted workflows grew to 31% of all new workflows, and median time-to-first-workflow fell from 3 days to 4 hours.
- Packaged the AI capabilities as a usage-based add-on priced on executed automation steps, working with sales and marketing on positioning: ~€800K added ARR in the first year, and adopting accounts churned 1.8 pp less.
- Owned the roadmap end to end: replaced feature-request-driven quarterly planning with an outcome-based rolling roadmap built on quarterly bets and explicit kill criteria, presented monthly to the executive team and quarterly to the board.
- Rebuilt the product-management operating system: weekly customer-discovery cadence incl. workshop facilitation, RFC/decision-doc reviews and a single quarterly metrics narrative; coached four product managers, one promoted to senior during the engagement.
- Closed the engagement as scoped: hired and onboarded the permanent VP Product, handed over the process playbook and roadmap, and exited on schedule in June 2026.
Imran A.
Last position:
Software Engineer II at LivePerson Germany GmbH
- Led development of 15+ microservices (Java 17, Spring Boot) driving customer interactions; migrated from on-prem to GCP Kubernetes, improving scalability and reducing infra cost by 20%.
- Optimized user services with CouchDB caching and API refactoring, cutting response times by 35% and enhancing customer experience.
- Implemented canary deployments, FluxCD GitOps, and CI/CD optimizations in GitLab, reducing release lead time by 25% and enabling zero-downtime rollouts.
- Set up Grafana health checks and Anodot alerts for latency, error, and throughput monitoring, reducing MTTR by 40%.
- Built secure APIs using OAuth2, DPoP, and Gatekeeper, integrated REST and GraphQL, and achieved 90%+ test coverage with unit and E2E tests.
- Mentored junior developers, promoted Agile best practices, and collaborated cross-functionally to deliver high-impact, reliable customer-facing features.
Abed D.
Last position:
Co-Founder, Product Manager at HODL It!
- Cut first-30-day post-subscription churn 45% to 20% by revamping onboarding and optimizing time-to-value.
- Drove 3x LTV in 6 months through retention and monetization experiments across the customer lifecycle.
- Owned app redesign and feature delivery leading to lifting active-user NPS from 6.3 to 8.5.
Mukund B.
Last position:
Voice AI Chatbot - Real-Time Audio Assistant
- ▶ Built real-time voice assistant (STT → LLM → TTS pipeline) benchmarking and evaluating multiple STT providers including faster-whisper and Azure Speech. achieved sub-3s latency, Groq API (Llama 3) with multi-turn memory - directly handling edge cases in dictation, names and passcode recognition.
Aruldass A.
Last position:
Web Module Lead at Mphasis Limited
- Led the end-to-end delivery of enterprise full-stack web applications by driving requirement analysis, solution design, frontend and backend development, database design, API integration, code reviews, team coordination, Agile execution, CI/CD deployments, production support, performance optimization, security implementation, and stakeholder collaboration to deliver scalable, high-quality software solutions.
Murad H.
Last position:
Founder & Technical Lead at Hubpoint.Ai
- Founded an AI-powered scheduling and business-management SaaS for SMBs, owning technology strategy, architecture, product development, UX, billing and go-to-market execution.
- Architected and shipped a multi-tenant platform with REST APIs, RBAC, CRM, billing and notifications, powering the manager dashboard, admin console, booking experience and iOS/Android applications.
- Led and mentored 7 software engineers, 1 DevOps engineer, 1 QA engineer and 1 UX/UI designer, while remaining hands-on across backend, frontend and product delivery.
- Built AI voice and chat agents using Python/FastAPI, OpenAI and Anthropic APIs, RAG, pgvector and tool calling; integrated Twilio, Google Calendar/Meet, Stripe and Firebase.
- Owned production infrastructure and automated delivery across separate environments using Docker, Nginx, GitHub Actions and Grafana; represented the company at accelerators and international startup events.
Selected stack: Python, FastAPI, Node.js, Vue 3, React/Next.js, React Native, PostgreSQL, Redis, Docker
Majid M.
Last position:
Senior Technical Product Manager - Platform & Automation at U.S. Legal Tech Platform
- Owned product delivery for document automation and workflow platform used across multiple legal jurisdictions
- Led integration across 6+ systems using API-based data exchange and structured data mapping
- Partnered with engineering on data models, document generation workflows, and system orchestration
- Evaluated LLM-assisted document automation opportunities to reduce manual drafting
- Built functional prototypes to validate workflow and product concepts
- ~2x increase in case processing throughput
- Enabled multi-state rollout of platform capabilities
- Reduced manual document generation and operational bottlenecks by 80%
Ricardo C.
Last position:
Senior Frontend Engineer at Deutsche Rente Versicherung
- Developed healthcare and webinar platforms using React, Ionic and GraphQL.
- Built scalable frontend applications in close collaboration with designers and backend teams.
Ola V.
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Unnikuttan V.
Last position:
Managing Director (Co-Founder) at AathmaSignals
- Spearheading investor outreach and partnership development as founding MD, building the business case and technical narrative needed to attract initial funding and strategic collaborators in the digital health space
- Designing multi-agent AI systems for autonomous biosignal analysis, orchestrating LLM-based reasoning pipelines with domain-specific medical context to enable intelligent, clinical decision support
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.
Niharika G.
Last position:
Staff Product Lead - Pricing & Insight at University of Illinois Urbana-Champaign
Discover over 15,000 top freelancers
Statistics of experts using Postman
Aggregated from the professional profiles of matched freelancers.
Experience
13 years (Germany: 17 years)
Position duration
1.6 years (Germany: 1.8 years)
Positions per freelancer
9 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 92%)
Master's degree or higher
66% (Germany: 59%)
Doctorate
3% (Germany: 6%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Hindi
Speak two or more languages
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 Berlin 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 Berlin 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 (49%)
- Automotive (36%)
- Education (36%)
- Healthcare (33%)
- Media and Entertainment (28%)
- Professional Services (26%)
- Transportation (23%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
API testing and collaboration
Postman is a workspace for designing, sending, testing, documenting, and sharing API requests. Teams use it to validate REST, GraphQL, and SOAP services before applications reach production. Collections keep related requests, examples, scripts, and documentation together for repeatable collaboration.
Collections and environments
Strong Postman professionals structure collections around real business flows rather than isolated requests. They configure environment and collection variables, manage authentication, create reusable scripts, and separate development, staging, and production settings. This makes API checks easier to maintain as services change.
Automation with Newman
Postman workflows can run outside the desktop workspace through Newman, the Postman command-line collection runner. Specialists connect collections to CI/CD systems, configure data-driven runs, publish test results, and use monitors for scheduled checks. They also work with OpenAPI definitions, mock servers, webhooks, and API documentation.
Where companies use it
Postman supports API work across product teams, internal services, integrations, and partner-facing platforms. Common assignments include:
- Building collections for functional and regression testing
- Validating authentication, permissions, schemas, and error responses
- Creating mock APIs for parallel frontend and service work
- Maintaining documentation and examples for API consumers
When outside expertise helps
Companies often bring in freelance Postman specialists when API coverage is inconsistent, collections have become difficult to govern, or releases need dependable automated checks. Berlin teams may also value professionals who can work effectively across remote and on-site collaboration, while aligning with English-speaking product and engineering groups.
What quality looks like
A capable professional uses clear naming, predictable variables, focused assertions, and secure handling of secrets. They understand HTTP, JSON, OAuth, JWT, webhooks, API contracts, and the service architecture behind each request. Good work is versioned, documented, easy to run in CI, and useful to both technical and non-technical stakeholders.
Frequently asked questions
Before you brief your next project: the most common questions about Postman.
Postman is used to send API requests, inspect responses, write tests, create documentation, and share repeatable workflows. Companies use it for REST, GraphQL, and SOAP services, as well as mock servers, monitors, and integration checks.
Postman provides a visual workspace for collections, environments, scripts, documentation, and team collaboration. curl is lightweight and command-line focused, while Insomnia offers a different interface and workflow; the right choice depends on automation needs, governance, and team preferences.
A strong Postman professional should understand HTTP, JSON, API authentication, OAuth, JWT, JavaScript test scripts, and OpenAPI. Experience with Newman, Git, CI/CD tools, databases, and service observability is also useful for work that extends beyond manual request checks.
The required depth depends on the assignment. Simple collection design may need practical API testing knowledge, while CI automation, contract validation, complex authentication, and governance call for a professional who has handled those areas in production contexts.
Yes. Postman collections, environments, documentation, and automated runs can be shared remotely through controlled team workflows. Berlin-based projects may still require agreed overlap hours, clear communication, and occasional on-site sessions when teams are coordinating releases or integration work.
A company should consider a Postman freelancer when API testing is slowing releases, documentation is unreliable, or collections need to move into CI/CD. External expertise is also useful when internal specialists need a focused handover, audit, or automation setup.
Review whether the Postman collections are readable, reusable, and connected to meaningful assertions rather than only status-code checks. Ask how the professional handles secrets, variable scopes, failed tests, version control, test data, and maintenance when an API contract changes.
Postman supports important functional and integration checks, but it does not replace every testing method. Teams may still need unit tests, contract testing, load testing, security testing, and end-to-end checks depending on the service and its risk profile.
The average hourly rate of freelancers in Berlin, Germany who have used Postman in their recent projects is 77 €, which corresponds to a daily rate of about 613 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Postman in their recent projects, 100% hold at least a Bachelor's degree, 66% hold at least a Master's degree, and 3% hold a doctorate.
On average, freelancers in Berlin, Germany who have used Postman in their recent projects have 13 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Berlin, Germany who have used Postman in their recent projects are German (97%), English (97%), and Hindi (18%).
The most common industries among freelancers in Berlin, Germany who have used Postman in their recent projects are Information Technology (100%), Banking and Finance (49%), and Automotive (36%).
The most common business areas among freelancers in Berlin, Germany who have used Postman in their recent projects are Information Technology (100%), Product Development (97%), and Project Management (62%).
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Essen Countries:
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FRATCH CEO
