MobX Experts in Germany
for responsive applications, matched in minutes with vetted freelancersHire experts who design predictable reactive state, connect MobX with React and TypeScript, and deliver maintainable front-end architectures for complex applications. FRATCH matches you quickly and precisely with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used MobX
Cedric O.
Last position:
Development at Construction industry
- New development of project room functions
- Connection of REST API of a self-developed web service (.NET 7/8) as Azure App Service
- UI tests with Playwright
- Extension of Azure DevOps pipelines
- Migration to Azure SQL Server
- Software / technology: SharePoint Online, PowerShell scripts, SharePoint Framework, MobX, C#, Logic Apps, Playwright, Azure SQL Server, Graph API
Rodrigue K.
Last position:
Fullstack Development at Bavarian State Office of Taxes
- Performed an as-is analysis of the existing Oracle application Express Admin interface
- Created a requirements analysis for the React admin interface to be developed
- Developed the new VAT admin interface using React and TypeScript (frontend) as well as Java 17, Spring Boot, and Hibernate (backend)
- Conducted final training, including training materials, to transfer knowledge to the client’s employees and ensure they can independently maintain and extend the software
- Produced detailed technical documentation
- Tools: KONSENS-AppKit, SPA, React, TypeScript, REST API, unit testing, Java, JavaScript, Node, HTML5, CSS3, UI/UX, Spring Boot, OpenAPI, JSON, Oracle DB, GitHub CI/CD, Playwright, UML, Gradle
Roxana G.
Last position:
Freelance Senior Frontend Developer at RHI Magnesita
- Designed and developed a high-performance internal resource management platform using React and TypeScript, optimizing dynamic data rendering and state management.
- Built a React Native application to support mobile access to internal tools, enabling on-the-go project tracking for field teams.
- Developed custom 2D canvas-based visualizations using Pixi.js to simulate material flows and refractory layer behaviors.
- Integrated Pixi.js with React components for interactive diagrams and real-time UI updates.
- Developed interactive 3D visualizations using React.js for displaying refractory product layouts and simulations, supporting engineering and sales teams with dynamic product previews.
- Integrated Three.js within the React ecosystem to allow manipulation of 3D models in real-time via browser, enhancing user engagement and field configurability.
- Integrated a headless CMS to enable dynamic content updates by non-technical users, reducing content deployment time by 40%.
- Led AWS CloudFront optimization initiatives, improving portal load speeds by 30% globally.
- Actively collaborated with cross-functional Agile teams and product owners to deliver prioritized features with a fast feedback loop.
- Key Technologies: React.js, React Native, Three.js, TypeScript, Contentful CMS, AWS S3/Lambda/CloudFront, Cypress, Agile Scrum
Arne H.
Last position:
Embedded Fullstack Developer at IoT / Infrastructure Automation Sector
- Analysis of legacy codebase and identification of architectural issues, implementing improvements in coordination with the Product Owner.
- Development of clean, efficient, and fully documented code following established software engineering practices and standards.
- Analysis of Erlang components in backend and device layers to provide recommendations for ensuring stable system operation.
- Setup and optimization of CI/CD pipelines on client infrastructure, including testing, debugging, and certificate management quality assurance.
- Participation in planning, design, and implementation of epics and stories according to Product Owner specifications.
- Technical consultation for Product Owner regarding Erlang codebase management and best practices.
- Collaboration with Product Owner, Scrum Master, and development team to ensure timely delivery of features.
- Elixir & Phoenix + PostgreSQL
- Erlang
- IoT
- CI/CD
- Git
- Agile/Scrum
- Docker
- Kubernetes
- Frontend (VueJS)
- Embedded Devices
Taher S.
Last position:
DevOps Engineer at Confidential
- Working with developers, security, and operations teams to align requirements
- Supporting product owners and development teams in using logging and monitoring solutions based on the Elastic Stack
- Developing and standardizing log schemas as well as defining practical standards for observability
- Designing and further developing logging architectures for complex, distributed multi-tenant environments
- Connecting application and infrastructure logs as well as security tools and metrics
- Optimizing data flows and modeling for analysis and reporting purposes
- Building automated infrastructures using Terraform/Terragrunt and Ansible
- Maintaining and further developing CI/CD pipelines in GitLab as well as automated development environments in Hetzner Robot
- Operating and automating Proxmox clusters including Ceph storage
- Setting up and operating Kubernetes (k3s) clusters on Fedora CoreOS including base services such as Vault, OpenLDAP, and HA Proxy
- Implementing security-critical infrastructures according to BSI baseline protection and securing existing systems
- Supporting the operation of solutions in cloud environments (including AWS)
- Working in agile teams using Scrum and Kanban
- Technologies/ applications: Elastic Stack (Elasticsearch, Logstash, Beats/Elastic Agent, Kibana), Terraform, Terragrunt, Ansible, GitLab CI/CD, GitOps, Proxmox, Proxmox Ceph, Kubernetes (k3s), OpenShift, Helm, Kustomize, Vault, OpenLDAP, HA Proxy, Hetzner Robot systems, AWS, Prometheus, Grafana, Syslog Linux/Windows, Docker, NGINX, Apache Security & Compliance (BSI baseline protection, SIEM/SOC)
Kshiti P.
Last position:
Senior Front End Engineer at People of Peony
- Built scalable and reliable web using React, TypeScript, JavaScript and open-source tooling, taking full ownership from development to deployment with minimal oversight
- Translated client requirements and visual designs into functional, user-friendly interfaces by applying UI/UX design principles, ensuring the delivered product aligned with the client's product vision
- Proactively identified and resolved complex technical issues spanning frontend and DevOps (AWS), going beyond the defined scope to ensure continuous and stable delivery, with test coverage maintained via Jest
Michael M.
Last position:
Deutsche Bahn
- Implemented accessibility audit recommendations for the ICE onboard portal to improve usability for screen reader and keyboard users
- Migrated end-to-end tests from Cypress to Playwright
- Refactored components to meet accessibility standards
- Introduced Prettier for consistent code formatting
Tymur A.
Last position:
Project Manager Data Center at ITCP BV
- Lead cross-functional teams through full project lifecycles, from requirements and scoping to delivery and rollout.
- Owned sprint planning, backlog prioritization, and stakeholder communication using Click up.
- Defined user stories and acceptance criteria, aligning delivery with business goals.
- Managed timelines, risks, and dependencies; coordinated with vendors.
- Instituted agile ceremonies and continuous improvement practices.
Jewgenij S.
Last position:
Mobile Engineer at ginlo.net Gesellschaft für Datenkommunikation mbH
- Development of the ginlo Messenger client, emphasizing stringent data protection compliance as mandated by German legislation.
Marius R.
Last position:
Freelance React Native Developer at German Government / SAP SE
- React Native development and consulting (KulturPass app) using TypeScript, Redux and RTK Query
- Fully open sourced on GitHub
- Project of the Federal Government and SAP to promote culture and youth
Hendrik B.
Last position:
Lecturer at Front and Fullstack Development Lecturer
- Teaching JavaScript, HTML, CSS, React, NodeJS, MongoDB, MariaDB, and Express
- Designing and preparing lessons
- Classroom teaching and one-on-one coaching
Andreas K.
Last position:
Senior Developer at ioki GmbH, a Deutsche Bahn AG company
- Fullstack development based on Next.js and TypeScript
- Development and optimization of geospatial database queries for PostgreSQL/PostGIS
- Visualization of geospatial data using Mapbox
- Design and execution of load tests and performance optimizations
- Code reviews and documentation tasks
- Technologies: JavaScript, TypeScript, Next.js, React, Zod, tRPC, Storybooks, PostgreSQL/PostGIS, MicroORM, Knex, Material UI, Mapbox, BullMQ, Jest, Playwright, Artillery.io, K6, Sentry, Figma, GitLab, Grafana, GTFS
Patrick P.
Last position:
Lead Web & FE Architect, Senior Developer at Mercedes-Benz AG / Microsoft / Alexander Thamm
- The goal was to develop a solution to improve intralogistics in Mercedes plants as part of the MO360 production ecosystem
- Lighthouse project in collaboration with Microsoft (cloud architecture) and Alexander Thamm (data engineering)
- Visualization and analysis of live data to improve logistics processes
- Prediction of delivery movements, monitoring of equipment and delivery orders, and creating relevant alerts
- Providing live dashboards for control centers, suppliers, and management
- Designing and building the web and frontend architecture
- Developing UI components and processing and visualizing real-time data streams
- Developing DevOps strategies
- Toolstack: TypeScript, NodeJS, React, NestJS, NextJS, Azure Cloud (Containers, Digital Twins, Databricks, SQL, Application Insights, Event Hubs), SCRUM, Git, Azure DevOps, Python
Discover over 15,000 top freelancers
Statistics of experts using MobX
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
1.7 years
Positions per freelancer
15
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
100%
Master's degree or higher
44%
Doctorate
11%
Certifications per freelancer
1
Most common languages
German, English, Spanish
Speak two or more languages
92%
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 Germany 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 Germany using MobX
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.
MobX 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 (62%)
- Automotive (54%)
- Government and Administration (54%)
- Education (46%)
- Transportation (46%)
- Manufacturing (46%)
- Energy (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Reactive state management
MobX is a JavaScript and TypeScript state-management library built around observable data, computed values and actions. It tracks dependencies automatically, so interfaces update when the state they use changes. Teams use it for responsive web applications, dashboards, internal tools and rich client-side workflows.
React and TypeScript
MobX is often paired with React, where observer components respond to observable state without extensive prop drilling or manual selector logic. Strong specialists also work comfortably with TypeScript, React hooks, routing, form libraries and component systems. They structure stores so domain logic remains separate from presentation code.
Ecosystem and tooling
The core library supports focused state models, while related tools address larger application structures and persistence.
- MobX stores with observable, computed and action patterns
- React integration through mobx-react-lite
- TypeScript types, strict configuration and reusable domain models
- MobX-State-Tree for structured, serializable state
- Tests with Jest, Vitest or React Testing Library
When expertise matters
Companies bring in freelance MobX expertise when state has become difficult to trace, a React application needs a clear architecture, or a migration has stalled. Specialists can review existing stores, reduce unnecessary renders and define boundaries between server data, UI state and business rules. In Germany, remote collaboration is common, while some teams need on-site workshops for complex product work.
Typical deliverables
MobX professionals contribute to new products as well as established codebases.
- State architecture for multi-step workflows and data-heavy screens
- Store refactoring and migration from Redux or custom context patterns
- Server synchronization, caching and optimistic updates
- Testable domain logic and controlled side effects
- Performance reviews for observable updates and component rendering
What strong specialists bring
Good MobX work is not just about making values observable. Strong professionals explain why state belongs in a store, a component or a server cache, and they keep reactions explicit enough to debug. They understand lifecycle behavior, asynchronous flows, serialization and testing, document their decisions, and communicate clearly with product and front-end teams in German or English.
Frequently asked questions
Key details about MobX, drawn from the questions we get asked most.
MobX is used to manage changing application state in JavaScript and TypeScript interfaces. It is especially useful for React applications with interconnected forms, dashboards, editors, workflows or other screens that must react immediately to domain changes.
MobX uses observable state and automatic dependency tracking, while Redux usually emphasizes explicit actions, reducers and a centralized event flow. MobX can require less ceremony, whereas Redux may offer stronger conventions for teams that prioritize highly traceable state transitions.
MobX work is strongest when paired with React, TypeScript, browser performance analysis and sound asynchronous programming. Experience with API clients, testing tools, routing, data caching and component design also helps a specialist make sensible state boundaries.
MobX can support a focused store change or a broader application architecture review. The right level of experience depends on the state complexity, existing code quality, testing needs and whether the specialist must guide a migration or establish patterns for a team.
MobX projects are well suited to remote collaboration because code reviews, architecture sessions and testing can happen online. Teams in Germany should clarify working language, overlap for workshops and access to repositories, environments and product stakeholders before the engagement starts.
MobX-State-Tree adds structured models, snapshots, actions and middleware around MobX state. It can suit applications that need serializable state, clearer model contracts or a more opinionated approach to shared domain data, while plain MobX offers more freedom.
MobX was previously known as mobservable before the project adopted its current name. The underlying idea remains reactive state management, but current project work should be evaluated against the maintained MobX ecosystem and the application’s actual dependencies.
MobX implementations should make state ownership, reactions and side effects easy to understand. Ask a specialist to explain store boundaries, demonstrate tests for computed and asynchronous behavior, inspect rendering performance, and show how the design will remain maintainable as features grow.
The average hourly rate of freelancers in Germany who have used MobX in their recent projects is 89 €, which corresponds to a daily rate of about 713 € based on an 8-hour working day.
Of the freelancers in Germany who have used MobX in their recent projects, 100% hold at least a Bachelor's degree, 44% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Germany who have used MobX in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Germany who have used MobX in their recent projects are German (100%), English (92%), and Spanish (15%).
The most common industries among freelancers in Germany who have used MobX in their recent projects are Information Technology (100%), Banking and Finance (62%), and Automotive (54%).
The most common business areas among freelancers in Germany who have used MobX in their recent projects are Information Technology (100%), Product Development (92%), and Quality Assurance (62%).
Main locations of FRATCH Experts, who have recently used MobX
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 Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
