JSON Experts in Austria
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Meet FRATCH Experts in Austria, who have recently used JSON
Thomas P.
Last position:
Change Manager / Sales Transformation at SEFE
- Organizational Change Management as part of a group-wide, supranational sales transformation, serving as the core of a broad restructuring of business-critical areas, with end-to-end control of the change process and long-term embedding and securing the future readiness of sales.
- Initiation and end-to-end steering of the sales transformation program, including in-depth analysis to identify, assess, and strategically involve all relevant stakeholders, making tactical use of their specific business interests and influence.
- Conducting advanced, detailed change impact analyses to predict the organizational effects of the transformation, deriving a tailored change strategy, and developing a change roadmap and a change story as the core narrative of the campaign.
- Designing and implementing an integrated communication and action plan to ensure maximum transparency, effectively manage unspoken expectations, and actively guide a change process that is clear and understandable for all stakeholders.
- Active management of all transformation phases, including the setup of robust monitoring mechanisms for continuous progress analysis and forecasting based on recommended and jointly defined KPIs.
- Establishing an agile analysis and adjustment cycle to continuously assess the effectiveness of implemented measures, identify challenges early, and fine-tune the change strategy in time.
- Conducting precise gap analyses to identify skill gaps in the sales team in the context of the new strategic direction, and deriving and developing targeted qualification measures (e.g. coaching, training).
- Comprehensive reduction of resistance to change by turning opposing stakeholder mindsets into proactive change-driving change ambassadors.
- Deep and sustainable realignment of sales structures and processes in full alignment with the company’s overall goals.
- Qualitative and quantitative improvement of sales efficiency and performance as a direct result of the implemented transformation initiatives and capability-building programs.
Roman M.
Last position:
Software Engineer at FSM Rechtsanwälte
- Develop AWS-based components connecting Python backend services to React/TypeScript frontends.
- Improve database queries and application workflows for document processing and screening.
- Evaluate LLM retrieval and document-review workflows as part of the product stack.
Gerhard Z.
Last position:
Embedded Software Engineer at Magna Kreisel Electric
- Development of a charging station for electric vehicles
- Tools: C/C++/Matlab/Simulink
- Development and testing of functional software with various communication buses
Üsame T.
Last position:
Java Backend Developer at Porsche Informatik
- Java EE 8 development
- Java 21 and Spring Boot 3 microservices development
- Release management
- Onboarding of new team members
- Owner of an team-internal "Best Code Engineering Award"
Michael G.
Last position:
Scrummaster at Xenovo
Planning and monitoring sprints and holding the scheduled meetings
Analyzing and resolving issues in the development process
Error analysis, bug management and correction in individual process steps
Stakeholder management
Documentation and improvement of the development process
Tools: JIRA, Confluence
Mubin I.
Last position:
Software Engineer, Freelancer at Siemens-Linz
- Designed and implemented simulation software for electrical power systems, focusing on dynamic element interaction and user interface optimization using C++, wxWidgets, Windows, and Visual Studio.
Jaroslav A.
Last position:
Child care, personal development and learning
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)
Michael L.
Last position:
Software Developer at ProjektPro GmbH
- Optimized the performance of a large FileMaker solution
- Optimized performance in cloud and on-premise solutions
- Optimized the REST API
- Bug fixing and documentation
- Part of a large Scrum team
Alexander T.
Last position:
Functional Analyst & Administrator at Netz Niederösterreich GmbH
- Introduced automated testing for Fabasoft components and trained testers to create automated test cases.
- Installed AppTest on the server and clients.
- Requested firewall exceptions to allow communication between the AppTest server and clients.
- Conducted training sessions for testers.
- Automated test workflows.
- Created reports and sent emails.
- Enabled faster reviews of new releases, reduced manual testing effort, and improved documentation of test results and discovered defects.
David M.
Last position:
Senior Technical Consultant at BMW Group
- Architecture and development of enterprise React 19 based documentation platform for automotive software systems
- Full-stack implementation of visualization tools & interactive diagram viewers
- Performance optimization initiatives including virtual rendering for 10,000+ node trees and Web Worker-based search functionality
- Designed and implemented modular plugin architecture enabling extensible document rendering system
- Technical consultation on Git-based architecture-as-code workflows and modern design patterns
- Ownership of critical features from design through deployment, collaborating with cross-functional enterprise teams
Vladislav F.
Last position:
Senior Test Automation Engineer / Test Manager at Stadt Wien – WUKSEA
- Creating test scenarios, manual test cases and test data using boundary value analysis and equivalence classes
- Executing functional and non-functional tests (manually with Postman and web application, automated with WebDriver, JUnit and NUnit)
- Setting up, automating and maintaining the test automation framework with Java, Spring Boot, Selenium and Cucumber in IntelliJ (system, regression, smoke, UI and integration tests for web front-end and SOAP API backend interfaces)
- Automating backend NUnit test cases in Visual Studio
- Test management: developing and implementing test strategy and test plans, controlling tests, quality ownership and prioritizing risk-based tests, as well as maintaining documentation in Confluence
- Detailed analysis and quality assurance of requirements
- Creating and maintaining Jenkins pipelines, ensuring quality in build & deployment
- Close collaboration with business analysts, developers, testers and test management
- Identifying, creating and tracking defects/bugs, with thorough test documentation
- Reporting test results and defect reports
- Monitoring test processes and continuous improvements
- Reviewing test data and test results in PostgreSQL database via pgAdmin
- Supporting effort estimation and backlog prioritization
- Analyzing and debugging 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
Michael A.
Last position:
Founder & System Architect at Self-employed
- Development and operation of multiple digital platforms in logistics, catering, hotel industry, and SME digitization
- mampfen.at – Food delivery ecosystem (in production)
- ServicePortalPro – Service and automation platform (in production)
- ArtDorado – Art trading platform (rollout April 2026)
- ROOMMATE24 – Guest experience solution for hotels (rollout March 2026)
- firms.app – Business platform (currently in development)
- Various integration and automation projects
Andreas B.
Last position:
Freelance iOS Developer at Self-employed
NFC – Project: Development of a prepaid app solution that retrieves already paid services (credit) via an NFC connection between smartphone and terminal
Technologies: REST, NFC, Swift Concurrency, Keychain
KURIER edition & Futurezone.at: Development of white-label apps in partnership with Technical Apps for k-digital Medien GmbH
Technologies: REST, In-App Purchase, Push Notifications, Analytics, OAuth
White-label app for sports associations and institutions: iOS client connected to backend, focusing on modularity, flexibility, and customizability
Technologies: Swift packages (Network, Core, Business Logic, Frontend), MVVM pattern, reactive programming (Combine)
Magenta Sport iOS app: OTT sports platform by Deutsche Telekom with SSO (OAuth), HLS video streaming, DRM protection
Video player framework: Integration of the Sportradar OTT process, licensing model, HLS streams, DRM, analytics, Chromecast, AirPlay, Picture in Picture, Apple TV; available as an XCFramework via CocoaPods; used in WRC, MagentaSport, NHL TV
Collaboration on other apps: DFB and DFB Fanclub; LAOLA1.at; LAOLA1.tv; RedBull Salzburg (formerly)
Sebastian H.
Last position:
Software Developer at FERCHAU Austria GmbH
- Development and project management of configuration and calibration assistants for pick-and-place machines (Tools: Python, PyQt, Jira, Confluence)
- New development and project management of a project and production planning software for ski manufacturing (Tools: C#, WinForms, WPF, DevExpress, MS SQL, Jira, Confluence)
- New development and project management of documentation software for the test lab in the ski manufacturing process (Tools: Java, Spring Boot, REST API, Hibernate, MSSQL, React, Mantine.dev, Tiptap, Jira, Confluence)
- Further development and project management of warehouse management software with associated hardware for medical technology (Tools: Java, Quarkus, Flutter, ESP32, C/C++, Google Cloud, Jira, Confluence)
- Enhancement of a web application in the construction sector: improving user experience, developing new features, and updating outdated code parts (Tools: React, Node.js, Linux, GitLab)
- Further development of a web application for visualizing production steps by generating a graph based on various parameters; extending the search and filter function (Tools: Angular, Jira, Confluence)
- Modernization of a client's IT infrastructure in the online retail sector by provisioning cloud services with Terraform and creating a prototype of a web application (Tools: Terraform, AWS, Google Cloud)
- Planning, designing, and development of an application for a client's internal meeting management in the banking sector with integration into the Microsoft ecosystem; project management using SCRUM (Tools: Figma, React, Node.js, Microsoft Graph API, Jira, Confluence, Bitbucket)
- New development and modernization of a mobile smartphone application for product portfolio management of an IT service provider; project management using SCRUM (Tools: Figma, React Native, Android, iOS, Android Studio, Jira, Confluence, Bitbucket)
- Creation of an implementation concept for a monitoring system for rail infrastructure and development of graphical click prototypes (Tools: Figma, Microsoft Word, Microsoft SharePoint, Jira, Confluence)
- Software development in various technologies and programming languages
- Project management and organization of SCRUM meetings
- Point of contact for the client and distribution of tasks within the internal project team
- Requirements engineering: requirement analysis with the client
- Planning and conducting workshops
- Design and implementation of software architectures with prototype development
- UX/UI design of mobile, desktop, and web applications
Discover over 15,000 top freelancers
Statistics of experts using JSON
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
3.3 years
Positions per freelancer
9
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Education
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
83%
Master's degree or higher
33%
Certifications per freelancer
3
Most common languages
German, English, Croatian
Speak two or more languages
100%
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 Austria 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 Austria using JSON
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.
JSON 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 (89%)
- Banking and Finance (44%)
- Education (39%)
- Manufacturing (39%)
- Automotive (33%)
- Energy (28%)
- Healthcare (28%)
- Media and Entertainment (28%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Data format
JSON, short for JavaScript Object Notation, is a lightweight text format for representing structured data. It uses objects, arrays, strings, numbers, booleans and null values, making it easy for systems and people to read. Companies use it to exchange information between browsers, mobile apps, services and databases.
API payloads
JSON is a standard choice for REST APIs, webhooks and event-driven integrations. It carries requests and responses such as customer records, product data, orders, identity claims and configuration settings. Strong data contracts keep field names, types, optional values and error responses consistent as systems evolve.
- Design request and response structures
- Connect services through REST and webhooks
- Transform data between internal and external systems
Schemas and tools
The wider ecosystem includes JSON Schema for validation and documentation, JSON Lines for streaming records, and tools such as jq for inspection and transformation. Experts may also work with OpenAPI, Postman, GraphQL, TypeScript types and serialization formats such as BSON. They choose tools according to payload size, compatibility and operational needs.
When expertise helps
Companies often bring in freelance expertise when an API needs a consistent contract, an integration is failing, or legacy payloads must be mapped to a modern service. Austrian organizations can also need support aligning distributed teams around shared data definitions. Remote collaboration works well when examples, schemas and test cases are maintained clearly.
- Standardize inconsistent payloads
- Validate incoming data at service boundaries
- Document APIs for internal and external users
- Improve compatibility during system migrations
Quality signals
Strong professionals treat JSON as part of a system contract, not just a text representation. They define predictable naming, nesting and error conventions, handle unknown fields safely, and test valid and invalid payloads. They understand versioning, security, encoding, performance and the difference between syntactic validity and meaningful business data.
Project collaboration
A productive engagement starts with sample payloads, ownership of each field and a clear definition of success. Freelancers should be comfortable reviewing API documentation, working with English-language technical material and coordinating remotely or on site in Austria when the project requires it. Good handover includes schemas, examples, tests and decisions that future specialists can maintain.
Frequently asked questions
Quick answers to the questions that come up most around JSON.
JSON is commonly used to exchange structured data between web applications, mobile clients, APIs, microservices and automation tools. It also appears in configuration files, logs, event messages and data export workflows.
JSON is usually more compact and fits naturally with JavaScript and modern web APIs. XML offers mature document features, namespaces and attribute support, so the right choice depends on the integration standard, validation model and existing systems.
A strong JSON specialist usually understands REST, HTTP, OpenAPI, JSON Schema and API testing. TypeScript or another application language, database mapping, authentication and message queues are also valuable when data crosses several services.
The required depth depends on the work. A JSON freelancer handling a small payload mapping needs less system knowledge than someone defining contracts for many services, introducing versioning or resolving compatibility issues across a legacy environment.
JSON projects are often suitable for remote collaboration because schemas, sample payloads, API specifications and tests can be shared online. On-site work may still help when the specialist must coordinate with product, security or operations teams in Austria.
Review whether the JSON structure is consistent, documented and easy to validate. Ask for examples of handling missing fields, unexpected values, backward compatibility, error responses and sensitive data rather than judging a payload only by whether it parses.
JSON Schema is useful when several teams or services must agree on the same payload rules. It can support validation, documentation and contract testing, especially when an API has many consumers or changes frequently.
JSON Lines stores one JSON value per line, which suits streaming and record-by-record processing. BSON is a binary representation associated with MongoDB and can support typed values and efficient database handling; neither replaces ordinary JSON for every API.
The average hourly rate of freelancers in Austria who have used JSON in their recent projects is 99 €, which corresponds to a daily rate of about 793 € based on an 8-hour working day.
Of the freelancers in Austria who have used JSON in their recent projects, 83% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Austria who have used JSON in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 3.3 years.
The most common languages among freelancers in Austria who have used JSON in their recent projects are German (100%), English (100%), and Croatian (22%).
The most common industries among freelancers in Austria who have used JSON in their recent projects are Information Technology (89%), Banking and Finance (44%), and Education (39%).
The most common business areas among freelancers in Austria who have used JSON in their recent projects are Information Technology (100%), Product Development (94%), and Quality Assurance (56%).
Main locations of FRATCH Experts, who have recently used JSON
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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