Expo Experts in Germany
matched in minutes by AI from over 15,000 CVsHire experts who create and ship React Native apps with Expo, configure EAS Build and EAS Submit, and connect reliable native modules. FRATCH finds precise matches with vetted, available freelancers for your project.
Meet FRATCH Experts in Germany, who have recently used Expo
Stefan O.
Last position:
Founder at ProtocolEngine.io
Evidence-led health intelligence platform turning published research into personal health protocols. It scores 430 habits, foods, and supplements against the studies behind them, and moves the score when the evidence moves. Built solo.
- Built the daily ingestion pipeline across PubMed, bioRxiv, and medRxiv: 43,000+ papers from 3,400+ journals processed into 230,000+ typed evidence claims, each one traceable back to the study it came from.
- Designed the six-factor evidence scoring model and the public changelog behind it, so no recommendation ever appears without the papers underneath it. 23,000+ grade changes recorded and explained to date.
- Shipped an entity information model connecting every intervention to its mechanisms, biomarkers, and outcomes: 118 biomarkers with region-specific reference ranges, 77 mechanisms, 32 graded outcomes.
- Built the personalisation layer: blood panel ingestion that reads lab PDFs with a vision model and corrects results for draw time against the user's wake anchor, plus Oura, WHOOP, and Withings integration for daily readiness context.
- Operate eleven specialised review agents over the corpus and codebase, covering paper curation, retrieval quality, health-claim compliance across EU and US regimes, and security.
- Shipped the Evidence Assistant, a RAG assistant that answers from the claim database and cites the underlying papers, plus a B2B practitioner tier, an Expo React Native app, and localisation across 3 languages and 7 markets.
Stack: Next.js 16, TypeScript, Supabase, pgvector, Anthropic Claude, Vercel, DeepInfra.
Mirco S.
Last position:
Co-Founder, CTO & Managing Director at Sourcera.ai (Venture Build)
Full overall responsibility: product, technology, compliance and go-to-market
- Delivered an enterprise MVP in 54 days, exceeding scope and schedule.
- Won a 250k € ARR anchor customer and built a sustainable enterprise sales pipeline in the first quarter.
- Paid PoCs with Zalando (35k €) and tesa (26k €), validating product-market fit with Tier-1 enterprise customers.
- Initiated ISO-27001 and TISAX certification processes. Left when the venture entered its next organizational phase.
Michael H.
Last position:
Frontend Developer at RTL Tech
- Development and optimization of the RTL+ frontend application for SmartTV and set-top box platforms with React and Next.js.
- Key role in the technical coordination of developers within the team and in coordinating implementation.
- Central interface to adjacent teams to simplify development processes and improve cross-team alignment.
- Improved frontend performance, stability, and rendering behavior on low-powered devices in a restricted runtime environment.
- Implemented a frontend testing strategy with Jest, React Testing Library, and Playwright.
- Implemented accessibility improvements according to WCAG 2.2 and WAI-ARIA.
- Integrated Didomi Consent Management as a contribution to increasing ad monetization on streaming platforms.
- Used AI-supported engineering workflows with Cursor for structured implementation, refactoring, and faster problem solving.
Technologies used: React, Next.js, TypeScript, JavaScript, GraphQL, Apollo Gateway, Zustand, Tailwind CSS, Styled Components, React Testing Library, Playwright, Jest, HTML5, CSS3, AWS Lambda, EC2, CloudFront, S3, GitLab CI/CD, NX, Cursor
Tobias H.
Last position:
Solo Mobile Developer at The Event Verse
- Developed a new iOS access-control scanning app for security/gate staff to validate RFID wristbands/badges in real time
- Implemented an online/offline hybrid architecture: scans are first checked against the API, with a fallback to local SQLite data in case of network issues, including complete access policy evaluation (zone, direction, scan limits)
- Developed a native iOS RFID bridge: connected the proprietary RFID SDK (QuantumSDK) via a custom Expo Config Plugin + Native Module; integrated LineaPro Bluetooth scanner hardware
- Implemented real-time updates via WebSocket (Pusher protocol), including private-channel authentication and reconnect with exponential backoff for device-/gate-/event-based configuration changes
- Designed a 3-level persistence setup (Keychain/MMKV/SQLite) for secure credentials, high-performance state and offline-capable scan/credential data
- Implemented incremental credential sync (Cursor + updated_after) as well as batch upload of scan logs after reconnect to ensure consistent data in field operations
Wadim L.
Last position:
Fullstack Developer at dripwear.app
Development of an iOS app for virtual try-on and outfit suggestions
The goal of the project is to develop a mobile application for personalized, photorealistic outfit suggestions. Users should be able to upload their own photos, try on clothes virtually, and find products that can be bought directly in the generated suggestions.
- Planning and implementation of the onboarding and photo upload in the iOS app
- Development of the mobile application with Expo and React Native
- Implementation of a Hono/Node.js backend for user, product, and generation processes
- Building an asynchronous processing pipeline with BullMQ and Redis
- Connection of PostgreSQL/pgvector and S3 for product, image, and generation data
- Integration of Gemini and OpenAI for outfit generation and image processing
- Implementation of a credit system and integration of RevenueCat
- Integration of Stripe Connect and affiliate product feeds for products that can be bought directly
Label: TypeScript, React Native, Expo, Hono, Node.js, PostgreSQL/pgvector, BullMQ, Redis, S3, Gemini, OpenAI, RevenueCat, Stripe Connect, Docker
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
Michael S.
Last position:
Technical Lead, Development and Requirements Gathering at Decoupled frontend for a website in the pharmacy sector
- Ongoing support and further development.
Umut T.
Last position:
App Engineer at Tonies SE
Worked as an App Engineer as part of the IoT Control team in a React Native Stack.
- Implementing new Components based on the Tonies Design System.
- Improving, extending and maintaining Tonies Design System
- Adding new features like Volume and Playback Control of the Tonies
- Fixed connection issues via bluetooth and wifi
- Removing technical debt and polishing for an upcoming big software and hardware release
- Improving accessibility by optimizing screens and components for usage via screen readers.
- Wrote lots of automated tests to ensure app quality is always stellar.
- Weekly app releases in a high volume workload environment
Results & Impact:
- Improved app stability and connection reliability ahead of a major software and hardware release
- Raised overall app quality through a significantly broader automated test suite, catching regressions before they reached users
- Made the app usable with screen readers, improving accessibility for a wider audience
- Sustained a weekly release rhythm in a high-volume production environment without quality regressions
Technologies: react-native, expo, typescript, react-19, react-compiler, react-navigation, zustand, @tanstack/react-query, i18next, figma, app-store, play-store, sentry, bitrise, config-cat, poeditor
Max H.
Last position:
Taxi Lotte and Flughafentransfer Osnabrück
MOBILITY | BOOKING PLATFORM AND MOBILE APPS
The need: Two transport brands needed different booking experiences without maintaining separate systems for orders, drivers and prices.
What we built: A shared platform connects two branded websites, customer and driver apps, and an operator portal. Customers can book rides or airport transfers and follow a driver on a live map. The operator portal brings dispatch and statistics together. Stripe supports payments.
- Websites and mobile apps
- Booking and ride workflows
- FastAPI and PostgreSQL
- Shared backend and data
- Operator portal
- Dispatch and statistics
Technology: Next.js, React Native / Expo, Python / FastAPI, PostgreSQL, Stripe, Leaflet / OpenStreetMap
Business value: Bookings from two brands feed a common operational system while each brand keeps its own customer experience.
Ingo K.
Last position:
Co-Founder & Managing Director at Elterngeld Buddy GmbH
- Responsible for the entire software architecture of the parental allowance portal
- iOS and Android app with React Native and Expo, incl. push and OTA updates
- Store releases via App Store Connect and Google Play Console
- TypeScript monorepo for app, website and backend, web with Next.js and Tailwind
- Own promo, voucher and discount engine with contact and segment logic
- Payments via RevenueCat and in-app purchases, authentication with BetterAuth
- REST APIs based on OpenAPI, PostgreSQL with Prisma and Drizzle
- Self-hosting on Hetzner with Docker, Coolify, Terraform and GitHub Actions
- Tests with Vitest, Playwright and visual regression via Chromatic
- Observability via Grafana Cloud and error tracking with Sentry
- Performance marketing via Meta Ads, measured with custom event tracking
- Grew the product to 20,000 app users with a purchase rate of almost 12 %
- Managing Director since 04.2025, responsible for product and technology
Ibrahim H.
Last position:
Senior Full Stack / AI Engineer at Punktum Digital GmbH
- Context: Healthcare and laboratory teams required faster document analysis, treatment-planning support, and reliable AI workflows for MR/VR-assisted operations.
- Contribution: Built the AI healthcare platform, model/agent workflows, VR-glasses deployment platform, REST APIs, Next.js/React interfaces, and CI/CD pipelines.
- Impact: Delivered a production-ready AI product foundation that improved clinical document review, supported laboratory automation, and made VR fleet deployment manageable across environments.
Tech: TypeScript, Next.js, Node.js, React, Java, Spring Boot, Python, PyTorch, TensorFlow, Docker, PostgreSQL, OpenAPI, GitLab, GitHub Actions.
Adam R.
Last position:
Senior Software Engineer at Tonies GmbH
- Complete platform upgrade from Expo 53 to Expo 54, considering project-critical breaking changes
- Version bump of react-native 0.79.5 to 0.81.5 including consolidation, updating, and reinstalling all project-related dependencies (JavaScript, native modules, build tools, TypeScript tooling)
- Identifying and fixing incompatible libraries as well as adjusting iOS and Android configurations (Gradle, Pods, build scripts)
- Enabling and integrating the React Native New Architecture (TurboModules & Fabric) including adjusting native interfaces, build configurations, and feature flags
- Cleaning up technical debt and harmonizing platform-specific implementations to ensure long-term maintainability
- Stabilizing the project through detailed debugging, regression analysis, and adjustments to the tooling chain (Metro, Babel, TypeScript)
- Conducting comprehensive test cycles (unit, E2E, device tests) and optimizing CI/CD pipelines for Bitrise and GitLab
- Ensuring stable releases for Android & iOS in conjunction with analytics, engagement, and monitoring systems
Julien L.
Last position:
MLOps Engineer at SAMGEN
- Building and scaling cloud infrastructure on GCP to support a SaaS platform for industrial clients
- Designing and implementing a data-driven DevOps pipeline for streamlined deployment and CI/CD workflows
- Collaborating with Data Science team on MLOps workflow to automate integrated retraining
Umer D.
Last position:
Activation and Vocational Integration Program with Integrated Language Support at Berlitz
- Intensive language course with a focus on professional language content.
David M.
Last position:
Software Consultant at Getyourdrive
- Built modern web applications using React and NestJS.
- Developed frontend with React, TailwindCSS, shadcn/ui for elegant and responsive interfaces.
- Implemented backend APIs and authentication using NestJS and Node.js.
- Utilized AWS and Supabase for cloud deployments.
- Integrated Salesforce for CRM and data management.
Discover over 15,000 top freelancers
Statistics of experts using Expo
Aggregated from the professional profiles of matched freelancers.
Experience
14 years
Position duration
1.7 years
Positions per freelancer
12
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
35%
Doctorate
6%
Certifications per freelancer
2
Most common languages
German, English, Spanish
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 Germany 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 Germany using Expo
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.
Expo 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 (96%)
- Healthcare (64%)
- Banking and Finance (44%)
- Media and Entertainment (44%)
- Retail (44%)
- Automotive (40%)
- Manufacturing (40%)
- Education (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Expo does
Expo is an open-source framework and toolset for building cross-platform mobile apps with React Native. It provides a managed workflow, ready-to-use APIs, development tools and services for shipping iOS and Android applications from a shared codebase. Teams use it for consumer apps, internal tools, marketplaces and mobile extensions of web products.
Core ecosystem
The Expo ecosystem includes Expo SDK packages, Expo Go for device testing, and EAS, the Expo Application Services suite for builds, submissions and updates. Strong specialists work with React Native, TypeScript, navigation, state management, authentication, push notifications and native device capabilities. They also understand when a custom native module or prebuild configuration is needed.
Typical deliverables
- Set up an Expo project with clear environments and secure configuration
- Build reusable screens, navigation flows and accessible mobile interfaces
- Integrate camera, location, payments, notifications and analytics
- Configure EAS Build, EAS Submit and over-the-air update workflows
- Prepare app store releases, testing tracks and production monitoring
Expo can support rapid product validation as well as mature mobile applications. Its shared JavaScript and TypeScript foundation helps teams maintain a consistent experience across platforms while still allowing platform-specific behavior where it matters.
When companies hire
Companies bring in freelance Expo specialists when a mobile roadmap needs to move quickly, an existing React Native app needs modernization, or internal capacity is limited. They may need help migrating from an older workflow, resolving build failures, improving release processes or adding native functionality. In Germany, remote collaboration is common, while on-site work can help with workshops, product discovery and close coordination with local teams.
What quality looks like
A strong professional treats Expo as more than a collection of UI components. They make sound choices about managed and bare workflows, app permissions, bundle size, offline behavior, security and platform differences. They establish repeatable builds, document environment variables, test on real devices and investigate failures across JavaScript and native layers.
Selecting the right specialist
Look for evidence of shipped Expo or React Native applications, not only tutorial projects. Ask how the specialist handles EAS credentials, release channels, OTA updates, native dependencies and app store review issues. Clear communication matters when product, design and backend teams work remotely across Germany; the best fit can explain trade-offs, estimate work realistically and leave behind maintainable code.
Frequently asked questions
The facts hiring teams ask for most often when it comes to Expo.
Expo is used to build, test and release cross-platform mobile applications with React Native. It provides APIs for device features such as notifications, location and camera access, plus services for app builds, submissions and updates.
Expo adds a structured toolchain, managed services and ready-made modules around React Native. Plain React Native can offer more direct native control from the start, while Expo often reduces setup and release complexity; the right choice depends on the required native integrations and team preferences.
A capable Expo specialist should also know React Native, TypeScript, navigation, testing and mobile accessibility. Experience with EAS, app store submission, authentication, backend APIs, analytics and native iOS or Android troubleshooting is valuable for complete delivery.
The need depends on the product and its native requirements. A simple prototype may suit a professional familiar with the Expo workflow, while a production app with complex permissions, custom modules or demanding release processes calls for a specialist who has shipped and maintained comparable applications.
Expo is well suited to remote delivery because projects, builds and release workflows can be reviewed through shared repositories and cloud services. German teams should agree on working hours, documentation standards and language expectations early; on-site workshops can still help with discovery and stakeholder alignment.
Choose Expo when a team wants one React Native codebase, efficient access to common device APIs and a streamlined path to testing and release. It is a strong option for new products and many established apps, but projects requiring unusual native integrations should assess compatibility before committing.
Ask a Expo freelancer to walk through a shipped app, its build setup and a difficult production issue they solved. Review code structure, testing, permission handling, update strategy and documentation, then use a focused technical discussion to test whether they can explain trade-offs clearly.
Expo Go is a companion app for quickly previewing Expo projects on a device during development. It is useful for early testing, but production work may require a development build or custom build when the application uses native modules and configuration outside the standard Expo Go runtime.
The average hourly rate of freelancers in Germany who have used Expo in their recent projects is 93 €, which corresponds to a daily rate of about 743 € based on an 8-hour working day.
Of the freelancers in Germany who have used Expo in their recent projects, 100% hold at least a Bachelor's degree, 35% hold at least a Master's degree, and 6% hold a doctorate.
On average, freelancers in Germany who have used Expo in their recent projects have 14 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 Expo in their recent projects are German (100%), English (96%), and Spanish (12%).
The most common industries among freelancers in Germany who have used Expo in their recent projects are Information Technology (96%), Healthcare (64%), and Banking and Finance (44%).
The most common business areas among freelancers in Germany who have used Expo in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (60%).
Main locations of FRATCH Experts, who have recently used Expo
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 
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FRATCH CEO
