JSON Experts in Nuremberg
matched in minutes with vetted, available professionalsHire experts who design reliable data contracts, integrate REST and GraphQL APIs, and validate complex payloads across web, mobile and cloud systems. Get a precise match with vetted, available freelancers who can work remotely or alongside your Nuremberg team.
Meet FRATCH Experts in Nuremberg, who have recently used JSON
Oleg O.
Last position:
Senior Software Developer / BI Integration Developer Power BI, C# at Telecommunications
Embedded Analytics & AI-assisted BI
Design and development of an integrated analytics solution based on ASP.NET Core, Power BI Embedded, and LLM services to provide context-based business information.
Development of an AI agent with Function/Tool Calling for the secure orchestration of REST APIs, SQL data sources, and technical services within defined business processes.
Building automated BI workflows including workspace management, deployment processes, and scheduled refresh via the Power BI REST API.
Implementation of secure service-to-service communication with Microsoft Entra ID and Service Principal, and integration into existing enterprise system landscapes.
Technologies: ASP.NET Core, C#/.NET, Power BI Embedded, Power BI REST API, LLM API, AI Agents, Function/Tool Calling, Entra ID
Johannes K.
Last position:
Software Developer at Hoffmann Engineering Services GmbH
- Software development
- Technical design of software architecture and design (considering functional and non-functional requirements)
- Frontend and Backend
- Refactorings
- Code reviews
- Unit tests
- Automated integration tests
- E2E tests
Global Identity Services (GIS) is the identity provider for the Digital Services Platform (DSP). GIS is responsible for authenticating and authorizing end users and other DSP services by issuing security tokens. This includes:
- Identity management (e.g., user registration, password reset and change, user profiles)
- Management of roles and permissions
- Single Sign-On (SSO) across DSP services
- Management of OAuth resources and terms and conditions
Maciej S.
Last position:
Product Owner at Bundesagentur für Arbeit
- As part of the project, the further development of the identity management system was driven forward. This included a comprehensive refactoring of the interfaces to the connected target systems. In addition, several special systems were successfully connected to the IAM to ensure end-to-end identity and authorization management.
- Technical design and solution proposals for IAM system development
- Requirements analysis and requirements management (IREB, BABOK)
- Alignment of the strategy with the future target architecture (TOGAF)
- Prototyping of solutions
- Documentation of requirements (Innovator)
- Analysis and documentation of requirements and creation of process models (UML, BPMN, ArchiMate)
- Modeling of requirements and system functionalities (OOA/OOD, UML)
- Further development of interfaces (SOAP, REST)
- Carrying out architecture reviews
Benjamin S.
Last position:
CRM strategy & requirements analysis for marketing campaigns in the automotive sector at AUDI AG
- Development of strategies, processes and system requirements to further develop the lead and campaign streams of a Salesforce system for the subsystems Sales Cloud, Marketing Cloud and Analytics Cloud
- Gathering and creation of marketing strategy concepts for direct sales, focusing on lead generation for new and existing customers
- Analysis and optimization of existing and new contact points
- Derivation of system requirements and user tests for new developments
- Establishment of a requirements and implementation process for business needs at the interface between CRM strategy and marketing system operations
- Facilitation of ideation workshops with the project's stakeholders
- Mediation between business and technical project stakeholders
- Analysis and post-documentation of existing marketing strategies and the system functions already created for them
- Analysis of target groups and pre-system data quality as a foundation for new CRM strategies
- Consultation on content and asset strategy for marketing campaigns
- Definition of KPIs and other performance criteria for the system and CRM strategy
Michael E.
Last position:
Software Developer at Continental
- Supported a telematics component in the automotive sector with SELinux and open-source license management.
- Products: SELinux, iMX8, ScanCode.
- Skills: Linux, firmware development, Python.
Ioan D.
Last position:
Senior Software Developer at ING
- Tribe Home, Product Area 4 - Customer in Life, Squad Cybertron.
- Analysis, design, development, and testing of new requirements for Optimmo, construction financing software.
- Analysis, design, development, and testing of the JEE application MWS kredit-baufi.
- Analysis, design, development, and testing of the Wicket Optimmo application.
- Analysis, design, development, and testing of kredit-baufi batch programs.
- Migration of kredit-baufi batches to RHEL9.
- CiL SCS Consumer Pacts with Finagle.
- CiL ScS Touch Point Architecture Integration.
- Team size: 10.
- Tools / Frameworks: OpenJDK Java 17, Kotlin 1.6.0, Azure, Jenkins, Stash, JEE, Gitlab, JIRA, Confluence, git, Spring 6.0, Sping Cloud, Spring Data, Hibernate, JPA, JMS, Kafka, Oracle, PL/SQL, Red Hat Enterprise Linux (RHEL), Maven, REST, JBoss, Intellij IDEA, Wicket 9 and 10, Istio.
Dietmar B.
Last position:
Freelance Developer at Hirschmann/Belden
- Extension of test software for functional testing of IO modules in WPF with MVVM
- Configuration and extension of a specialized WPF control from Nevron
- Connection to Siemens PLCs via Siemens OPC UA Client and Allen-Bradley/Rockwell PLCs via Codebix OPC UA Client
- Integration of various data sources via REST API and JSON
- Development of stored procedures, views, and triggers for PostgreSQL and SQL Server with ADO.NET and Entity Framework 6
Puranjan B.
Last position:
Internship - Generative AI at Continental
- Gathered tire images and their feature descriptions.
- Cleaned dataset of image metadata using pandas.
- Stored image feature embeddings in Chroma vector db.
- Used image augmentations to increase dataset size.
- Used sklearn to create shuffled datasets and imbalanced-learn to balance class sizes in dataset.
- Used PyTorch to train and test different neural networks.
- Validated model using custom accuracy metric based on similarity search in ChromaDB.
- Visualized accuracy predictions using matplotlib.
- Plugged trained model into DreamBooth to train stable diffusion model and generate new images of tires.
- Created custom Docker image in Amazon Elastic Container Registry for machine learning script.
Radovan R.
Last position:
Development and Technical Architecture at HDI
Web application for contract changes
Micro frontend development from scratch through production with a Reactive Forms basis, Responsive Web Design, validation, multilingual support, accessibility, unit tests and component tests
Technologies: Angular 19-20, Nx, Angular CLI, Native Federation, TypeScript, HTML, SASS, Tailwind CSS, Angular Material, Reactive Forms, RxJS, Signals, PDF-Make, ng-openapi-gen, i18n, JSON Server, REST, JWT, Jest, Playwright, IntelliJ, Git, CI/CD with GitLab, Cloud Foundry, Nginx; Scrum
Premalatha S.
Last position:
Software Engineer at ASO-TDS(DISCOVERY)
- Created database schemas and liaised with geographically distributed teams using waterfall methodology
- Participated in business workshops and authored technical specification documents aligned with architectural requirements
- Developed high-quality code deliverables and reports using repository tools
Md. Shah S.
Last position:
Android Engineer at ScrapBays Ltd.
- Built features using Jetpack Compose
- Improved location-based features with in-memory caching
- Developed Merchant-to-Merchant chat functionality from scratch
- Integrated FCM with deep links to enable contextual push notifications
- Performance tuning for Google Maps view using clustering for better performance in dense areas
Discover over 15,000 top freelancers
Statistics of experts using JSON
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 19 years)
Position duration
1.5 years (Germany: 5.2 years)
Positions per freelancer
15 (Germany: 14)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
100% (Germany: 89%)
Master's degree or higher
56%
Certifications per freelancer
4 (Germany: 2)
Most common languages
English, German, Romanian
Speak two or more languages
100% (Germany: 98%)
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 Nuremberg 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 Nuremberg 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 29 Oct 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 (100%)
- Automotive (64%)
- Manufacturing (64%)
- Government and Administration (55%)
- Telecommunication (55%)
- Banking and Finance (45%)
- Education (36%)
- Transportation (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Data format and purpose
JSON, short for JavaScript Object Notation, is a lightweight text format for representing structured data. Its readable objects, arrays, strings, numbers, booleans and null values make it a common contract between browsers, mobile apps, services and databases. Companies use it to exchange records, configure applications and expose business data through APIs.
API integration
JSON is central to REST APIs and is also widely used in GraphQL responses, webhooks and event-driven services. Strong implementations define stable fields, clear nesting and predictable error responses so that systems can evolve without breaking consumers. Experts connect JSON payloads with authentication, pagination, filtering and versioning strategies.
Ecosystem and tooling
The format works across nearly every modern language and backend stack. Useful skills include schema validation with JSON Schema, transformation with jq, API testing in Postman, and documentation through OpenAPI. JSON-LD supports linked data and search-related metadata, while BSON is a binary alternative used by MongoDB.
- Define and review API request and response contracts
- Validate payloads against JSON Schema
- Transform nested data between services and systems
- Test webhooks, integrations and failure responses
Where it is used
Companies bring in JSON specialists for integrations that cross technology boundaries or need a dependable data contract. Typical work includes:
- REST interfaces for web and mobile applications
- Product, customer and order data synchronisation
- Cloud event pipelines and serverless workflows
- Configuration files and service-to-service communication
Nuremberg companies with manufacturing, logistics, retail or software operations may need JSON expertise when internal systems must exchange data with external services. Remote collaboration works well when API documentation, examples and test environments are kept current.
When freelance expertise helps
Bring in a freelancer when payloads have become inconsistent, integrations fail without clear causes, or a new API must support several clients. Specialists can audit contracts, introduce validation, improve documentation and create tests around edge cases. They can also help teams decide when JSON is appropriate and when a more compact or strongly typed format is better.
Signs of strong professionals
A capable JSON professional thinks beyond valid syntax. They understand data modelling, backwards compatibility, security, encoding, performance and the business meaning of each field. Look for clear sample payloads, deliberate handling of missing or unknown values, automated contract tests and practical experience tracing data across complete API flows. For teams in Nuremberg, English is common in technical collaboration; German may help when requirements involve local stakeholders.
Frequently asked questions
Not sure where to start with JSON? These answers cover the essentials.
JSON is used to exchange structured data between applications, browsers, mobile clients and cloud services. It commonly carries API requests, responses, configuration values, webhook events and synchronised business records.
JSON is usually more compact and easier to read in modern web and service integrations. XML offers richer document features, namespaces and established validation patterns, so the right choice depends on the integration contract, tooling and data model.
A strong JSON freelancer should understand REST, HTTP, authentication, OpenAPI and automated API testing. Useful adjacent skills include JSON Schema, SQL or NoSQL data modelling, message queues, JavaScript or TypeScript, and cloud integration.
The required depth depends on the assignment. A simple payload mapping needs less specialist input than designing contracts across many services, handling version changes or investigating production data inconsistencies. Assess whether the professional has solved problems similar to yours.
JSON work is well suited to remote collaboration because contracts, examples, schemas and test collections can be shared digitally. Teams in Nuremberg should agree on communication routines, access controls and whether German is needed for business requirements alongside English technical documentation.
JSON is a text format designed for portability and human readability, while BSON is a binary representation associated with MongoDB. BSON can preserve additional data types and support database-specific operations, but it is not automatically the better interchange format for external APIs.
Review whether JSON contracts are consistent, documented and validated rather than checking only whether a sample parses. Ask for evidence of contract testing, clear error handling, backward compatibility, secure input processing and sensible treatment of null, missing and unexpected fields.
JSON-LD is a JSON-based format that adds context so data can express relationships and linked information. It keeps the familiar JSON syntax while supporting semantic data use cases such as knowledge graphs and structured web metadata.
The average hourly rate of freelancers in Nuremberg, Germany who have used JSON in their recent projects is 87 €, which corresponds to a daily rate of about 698 € based on an 8-hour working day.
Of the freelancers in Nuremberg, Germany who have used JSON in their recent projects, 100% hold at least a Bachelor's degree and 56% hold at least a Master's degree.
On average, freelancers in Nuremberg, Germany who have used JSON in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Nuremberg, Germany who have used JSON in their recent projects are English (100%), German (91%), and Romanian (18%).
The most common industries among freelancers in Nuremberg, Germany who have used JSON in their recent projects are Information Technology (100%), Automotive (64%), and Manufacturing (64%).
The most common business areas among freelancers in Nuremberg, Germany who have used JSON in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (64%).
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.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
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