Swagger Experts in Austria
matched in minutes with vetted, available freelancersHire experts who design OpenAPI specifications, generate client libraries and document REST APIs with Swagger UI and Swagger Codegen. Get fast, precise access to vetted, available freelancers for API projects across Austria.
Meet FRATCH Experts in Austria, who have recently used Swagger
Christian W.
Last position:
Lead Developer & Performance Specialist at Groox GmbH
Sole responsibility for the design, development and deployment of the bilingual Qwik platform eventvideo.at. Responsible for frontend performance optimization (PageSpeed 97/100/100/100), SEO engineering with Schema.org, integration of Google Search Console and IndexNow, and building the GitHub Actions CI/CD pipeline. Requirements gathering and technical implementation.
- Performance Engineering: Google PageSpeed Score 97/100/100/100 (Performance / Accessibility / Best Practices / SEO) through frontend optimization (lazy loading, thumbnail-first, lightweight media integration)
- Full-Stack Web Development: Sole responsibility for development with the Qwik.js framework from frontend to deployment for the bilingual (DE/EN) platform eventvideo.at, marketing personalized, fully automated participant videos for sports events
- Qwik.js Resumability Architecture: Server-side rendering with minimal JavaScript hydration overhead; the page remains immediately interactive even with extensive video and event content, without a full-page load.
- API Integration: Google Search Console API and IndexNow API for automated indexing and SEO monitoring
- SEO Engineering: Schema.org Structured Data implementation for rich snippets and improved search engine visibility
- Mobile-First with minimal bundle size: CSS3 layout without UI framework overhead, consistently lean use of resources for excellent PageSpeed on desktop and mobile.
- GitHub Actions CI/CD: Automated build, test and deployment pipeline for continuous integration
Technologies: Qwik.js Framework, TypeScript, JavaScript, Internationalization (i18n DE/EN), GitHub Actions CI/CD, Google Search Console API, IndexNow API, Schema.org, Google PageSpeed Insights, Lazy Loading, CSS3, Responsive Design
Kurt B.
Last position:
Backend / Microservices Developer, DevOps, Test Automation at Fa. RCA, Rail Cargo Austria AG
- Backend / Microservices Developer, DevOps, Test Automation
- ~100 Developers, ~10 Teams, per Team: 1 PO, 1 ScrumMaster, 1UX, 1 Developers, 1 Tester
- .net core 8, 9, C#
- Microservices, Clean Architecture, MediatR, CQRS
- GraphQL, REST, SDL
- Azure DevOps, CI / CD pipelines, Azure Service Bus, Rabbit-MQ, Kafka, Azure App Configuration, Azure KeyVault, Azure Kubernetes AKS
- Splunk, dashboards, custom metrics, Elastic-Search, Kibana (ELK)
- Azure SQL Databases, Azure Cosmos DB
- Architecture decisions, event governance, COP (Backend, DevOps, FrontEnd, Test Automation)
- AI, Copilot, creating Test Templates
- Scheduler, Hangfire, Quartz
- Automated Unit and Integration Tests
- Automated E2E Tests, Playwright Test Automation, BDD, Gherkin, Cucumber
- Shipment tracking
- GIS, GPS data, geofence, geo search, position tracking, asset positions
- Jira, Confluence
- Focus on high-performance message-oriented architecture (~xx e6 messages / month / service)
- Structured logging, Serilog, OTel, Splunk, Application Monitoring
- Integration of different position data sources (GPS-based data) into AzureDataLake
Vladislav F.
Last position:
Senior Test Automation Engineer / Test Manager at Stadt Wien – WUKSEA
- Creation of test scenarios, manual test cases and test data using boundary value analysis and equivalence partitioning
- Execution of functional and non-functional tests (manual with Postman and web application, automated with WebDriver, JUnit and NUnit)
- Setup, automation and maintenance of the Test Automation Framework with Java, Spring Boot, Selenium and Cucumber in IntelliJ (system, regression, smoke, UI and integration tests for web frontend and SOAP API backend interfaces)
- Automation of backend NUnit test cases in Visual Studio
- Test management: development and implementation of the test strategy and test plans, test coordination, quality responsibility and prioritization of risk-based tests, as well as documentation management in Confluence
- Detailed analysis and quality assurance of requirements
- Creation and maintenance of Jenkins pipelines, quality assurance during build & deployment
- Close cooperation with business analysts, developers, testers and test management
- Identification, creation and tracking of errors/defects, as well as careful test documentation
- Reporting of test results and defect reports
- Monitoring of test processes and continuous improvement
- Verification of test data and test results in a PostgreSQL database in pgAdmin
- Support with effort estimates and backlog prioritization
- Analysis and debugging of development code
System environment: Java, JUnit, Spring Boot, Selenium, Cucumber, JavaScript, Jenkins, C#, NUnit, Postman, Bitbucket, Confluence, Jira, xRay, pgAdmin, PostgreSQL, SonarQube, Maven, IntelliJ, Visual Studio, CI/CD, SOAP API interfaces
Peter S.
Last position:
Lead Software Architect at Pritz IT GmbH
- Lead software architect in a greenfield MES project (Manufacturing Execution System / factory control system), responsible for architecture decisions, technology selection, and technical direction throughout the entire development lifecycle
- Designed and built the core framework from scratch, including several reusable Spring Boot starters (e.g., OPC-UA integration, messaging, security) that enable flexible composition of the individual system modules
- Introduced Keycloak as the central authentication and authorization system with SSO across all MES components
- Created and owns the full CI/CD pipeline covering Java, NPM and Docker – automating build, test, containerisation and deployment across all project components
- Set up the architecture documentation space in Confluence as the single source of truth for all architecture decisions, component designs, and integration patterns
- Defined and enforced naming conventions and coding standards to ensure consistency in the growing codebase
- Conducted regular code reviews for quality assurance, knowledge sharing, and adherence to architecture guidelines
- Created and maintained technology roadmaps to guide future development priorities and infrastructure investments
Namik D.
Last position:
Test Manager / Test Automation Engineer at Sky Deutschland GmbH
- Implemented and maintained 443 automated test cases with a 99% pass rate (441/443)
- Enabled CI for test automation: automated runs on review/merge, reporting via Xray
- Introduced accessibility and performance checks and established them in reporting
- Served as QA lead in daily operations with stand-ups, Kanban progress tracking, prioritization, and targeted task distribution
- Handled defect triage and stakeholder communication with daily triage, QA status analysis, and actionable recommendations
- Developed and maintained a stable regression suite for CRM/Salesforce flows (UI/E2E and near-API validations)
- Integrated CI/CD using Jenkins pipelines with Groovy (IaC)
- Maintained QA documentation, test conventions, and processes in Confluence, aligned across the team
- Conducted Salesforce Einstein chatbot testing with intent/topic validation and output checks, and used Robot Framework/Python suites for continuous quality monitoring
- Technology stack: Jira, Xray, Confluence, Jenkins, Groovy, Git, Java, Selenium, Playwright, Cucumber, TypeScript, Postman, REST, Salesforce, Google Cloud, Lighthouse, Evinced, Scrum/Kanban, BDD (Gherkin)
Jaroslav A.
Last position:
Child care, personal development and learning
Joseph W.
Last position:
Freelancer Cloud / Solution Architect (AWS) at A1 Bank
- I am responsible for providing solution architecture and technical assistance for a migration initiative aimed at transitioning to a new core banking system.
- The project involves replacing in-house development with a commercially available off-the-shelf core banking system operated as SaaS on AWS.
- Duties encompass solution design, technical coordination, supporting development teams, and providing IT support and troubleshooting.
- Managing over 10 global vendors and partners is crucial to project success.
- Technologies: VMWare ESXi, AWS, EKS Kubernetes, Mastercard Payment Transaction Service, Avaloq, A1 Telekom Austria infrastructure, CheckPoint FW, F5, Site-to-Site VPNs, PingID, Futurae SDK, Airlock, UC4/Automic, Firebase, iOS/Android lifecycle management, AWS IAM, AWS AppStream, AWS S3, AWS Transfer Family, QlikView, OpenAPI.
Simon S.
Last position:
Owner at Simon Söllinger e.U.
Jasmin G.
Last position:
Cloud Developer & DevOps Engineer at Energy Utility Company
- Further developing microservices (Go, .NET)
- Expanding gRPC APIs
- Maintaining Kubernetes clusters (AKS)
- Managing the system landscape
- Migrating Azure App Services to Kubernetes
- Creating and extending Azure Pipelines
- Developing a Go microservice to receive and send events from Azure Service Bus
- Integrating KEDA for autoscaling
- Technologies used: Go, .NET, Azure Portal, Terraform, Kubernetes, Helm, MongoDB, Jaeger, Grafana
Karl S.
Last position:
Freelancer
- Implementation of a Blazor application and Windows services with RabbitMQ, MS Orleans, SignalR and Powershell to manage automatic deployments and updates in VMware
- Development of a WPF application with C# and REST API integration (object annotation) for a German automotive company in distributed teams (Austria, Germany, Russia, India) with the following tasks:
- Requirement analysis, design, implementation, branching/merging, code reviews, optimizations, testing, bug fixing
- Integration of payment terminals and card readers into a vending platform using .NET Core
- Frontend development in Angular & AngularJS (SignalR and REST API integration, TypeScript, HTML, CSS)
Christian H.
Last position:
Senior Full Stack Developer at Adria Magazin GmbH
Jesolo Tickets – Booking platform for tickets
Design and implementation of a multi-tenant booking platform for the online sale of bus and ferry tickets in the Jesolo region of northern Italy. Travel agencies and event organizers embed a customizable booking widget on their own websites; travelers check live availability, book multiple passengers and pay online in just a few clicks.
- Real-time booking: Schedules and prices are provided live via the transport providers' APIs; after payment, tickets are automatically delivered as QR-coded PDFs – with no manual issuing required.
- Provider architecture: New providers can be onboarded without code changes; an origin-based multi-tenant model with its own domain and payment configuration for each partner site allows the platform to grow with every customer.
- Clean architecture: Three-layer structure (Handlers → Services → Data Store) with caching – availability queries remain fast and maintainable even with many parallel requests.
Tech-Stack: Go, Echo, PostgreSQL (pgx), Stripe, Web Components, Tailwind CSS, esbuild, Docker, GitLab CI, Hetzner VPS
Discover over 15,000 top freelancers
Statistics of experts using Swagger
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
2.6 years
Positions per freelancer
10
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
75%
Master's degree or higher
38%
Certifications per freelancer
2
Most common languages
German, English, Bosnian
Speak two or more languages
100%
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 Austria 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 Austria using Swagger
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.
Swagger 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%)
- Retail (45%)
- Banking and Finance (36%)
- Transportation (36%)
- Media and Entertainment (36%)
- Automotive (27%)
- Telecommunication (27%)
- Utilities (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
API documentation
Swagger is a set of tools for describing, documenting and testing REST APIs. Its specifications define endpoints, parameters, request bodies, responses and authentication in a format that people and software can understand. The OpenAPI Specification is the standard now used by the wider ecosystem, while Swagger remains the familiar name for the tooling around it.
Swagger tooling
Swagger UI turns an OpenAPI document into interactive API documentation. Swagger Editor helps teams write and validate specifications, while Swagger Codegen can generate client libraries and server stubs. Strong specialists also work with OpenAPI Generator, JSON or YAML definitions, schema validation and automated documentation pipelines.
Where it fits
Swagger supports APIs used by web applications, mobile products, partner integrations and internal services. It is useful wherever teams need a shared contract between frontend, backend and external consumers.
- Document REST endpoints and data models
- Validate API contracts before implementation
- Generate clients, server stubs and test assets
- Publish interactive reference documentation
When to hire
Companies often bring in freelance Swagger expertise when an API has grown without consistent documentation, when a platform is being split into services, or when external partners need a dependable integration contract. Specialists can also establish standards for naming, versioning, error responses and review workflows across distributed teams.
Skills that matter
Good Swagger work requires more than configuring a documentation screen. Professionals understand HTTP, REST design, JSON Schema, authentication methods such as OAuth 2.0 and API gateways. They connect the specification with implementation, contract tests, CI/CD pipelines and tools such as Postman, Git and Kubernetes where relevant.
Strong professionals
The best specialists keep the OpenAPI document accurate as the API changes. They explain trade-offs clearly, identify breaking changes and make examples useful for the people consuming the service. For Austrian companies, remote collaboration can work well when documentation, review routines and language expectations are agreed early; on-site workshops may help with complex stakeholder requirements.
Frequently asked questions
Quick answers to the questions that come up most around Swagger.
Swagger is used to describe, document and explore REST APIs. Teams use Swagger UI for interactive reference pages and use OpenAPI documents to align service providers, frontend teams and external integration partners.
OpenAPI is the specification that defines how an API is described, while Swagger is the established name for a family of tools built around that specification. A specialist should know both terms and understand the difference between the standard, Swagger UI, Swagger Editor and related generators.
Swagger UI is a strong choice when a team wants interactive documentation generated from an OpenAPI file. Alternatives may offer different publishing, collaboration or governance features, so the decision should consider existing API standards, deployment workflows and who will maintain the documentation.
Swagger work benefits from solid REST, HTTP, JSON Schema and API security knowledge. Experience with OAuth 2.0, API gateways, contract testing, Git-based reviews and CI/CD helps ensure that the specification remains connected to the running service.
OpenAPI documentation for a small, stable service may need focused support, while a large API landscape requires broader design and governance experience. The right specialist should be assessed against the number of services, integration complexity, security model and expected ownership after delivery rather than a generic experience label.
Swagger projects are often well suited to remote collaboration because specifications, reviews and documentation can be managed in shared repositories. Austrian companies should agree on working language, meeting routines, access to API environments and responsibilities for reviewing changes; on-site sessions can still help during discovery.
Swagger quality is visible in an accurate OpenAPI document, complete examples, consistent error responses and documentation that matches actual API behavior. Ask a specialist to explain how they detect breaking changes, validate schemas and keep the specification updated through delivery.
Swagger Codegen can generate client libraries and server stubs from an OpenAPI definition, but it does not replace application design or production implementation. A capable specialist treats generated output as a starting point, reviews it for security and maintainability, and connects it to tests and deployment processes.
The average hourly rate of freelancers in Austria who have used Swagger in their recent projects is 88 €, which corresponds to a daily rate of about 708 € based on an 8-hour working day.
Of the freelancers in Austria who have used Swagger in their recent projects, 75% hold at least a Bachelor's degree and 38% hold at least a Master's degree.
On average, freelancers in Austria who have used Swagger in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Austria who have used Swagger in their recent projects are German (100%), English (100%), and Bosnian (18%).
The most common industries among freelancers in Austria who have used Swagger in their recent projects are Information Technology (100%), Retail (45%), and Banking and Finance (36%).
The most common business areas among freelancers in Austria who have used Swagger in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (55%).
Main locations of FRATCH Experts, who have recently used Swagger
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.
Countries:
- Germany
- Austria
- Switzerland
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FRATCH CEO
