Expo Experts in Berlin
matched in minutes from over 15,000 CVsHire experts who deliver cross-platform mobile apps with Expo, React Native and Expo Router, from initial setup through store release and ongoing updates. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your project.
Meet FRATCH Experts in Berlin, 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.
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
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.
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
Max D.
Last position:
Tech Lead, Interim CTO/CPO at MatchDispatch
I worked on automating cold outreach.
- Developed a queue architecture to support the parallel execution of large volumes of background tasks.
- Integrated multiple email delivery providers.
- Implemented an LLM-based data enrichment process.
Technologies: TypeScript, React, Node.js, Next.js, Drizzle ORM, PostgreSQL, Next-Auth, JWT, Docker, Kubernetes, AWS, CloudFlare, Traefik, Groq, Jest, Figma
Stefan G.
Last position:
Freelance Product Owner / Manager at Self employed
- Working on [link] and [link]
- Temporary Product Owner / Product Manager
- Project management
- Jira/Confluence setup/configuration
- Requirements engineering
- User story mapping, backlog creation and prioritization
- Scrum Master for hybrid and remote teams
Muhammad A.
Last position:
Senior Software Engineer at Verbund Pflegehilfe
Own Azure-hosted ASP.NET Core microservices for chronic-care workflows, sustaining 99.8% uptime across 3,000+ patient interactions.
Shape HL7 FHIR-based patient, encounter, and observation profiles delivering a unified source of truth for clinical teams and integrations.
Implement SignalR telemetry, Application Insights alerting, and automated pipelines that surface deteriorating vitals in under three seconds.
Automated consultant outreach by orchestrating Twilio voice campaigns via n8n workflows and VAPI AI assistants, boosting successful client contacts by 55%.
Entlass Manager: Led the end-to-end build of the chronic-care coordination platform, standing up Azure-native microservices, clinical data flows, and patient-facing tooling from initial requirements through production release.
Power Dialer: Built the Twilio-driven consultancy auto-dialer and n8n workflows, raising client reachability to 85%.
Martin M.
Last position:
Florio C3G
- App that helps patients schedule their medication, track their symptoms, and biomarkers
- The app is being certified as a medical device
- Technologies: React Native, Expo, Redux Toolkit
Discover over 15,000 top freelancers
Statistics of experts using Expo
Aggregated from the professional profiles of matched freelancers.
Experience
14 years
Position duration
1.6 years
Positions per freelancer
11
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
25%
Certifications per freelancer
3
Most common languages
German, English, Japanese
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 Berlin 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 Berlin 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 (100%)
- Banking and Finance (63%)
- Healthcare (63%)
- Education (50%)
- Energy (50%)
- Media and Entertainment (50%)
- Automotive (38%)
- Manufacturing (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Expo does
Expo is a framework and set of services for building mobile applications with React Native. It provides a managed development workflow, ready-to-use APIs and tools for Android, iOS and web targets. Teams use it to move from an application idea to testable releases without maintaining every native build detail themselves.
Core ecosystem
The Expo ecosystem includes the Expo SDK, Expo Router, EAS Build, EAS Submit and EAS Update. Specialists work with React, TypeScript, navigation, native permissions, push notifications, deep linking and device APIs. They also configure app identifiers, environment variables, signing credentials and release channels for dependable delivery.
Typical projects
- Consumer apps with shared Android and iOS code
- Internal tools for field teams and operations
- Commerce, booking and membership experiences
- Prototypes that need a path to production
- Existing React Native applications moving to Expo
Expo supports more than simple prototypes. It fits customer-facing products, companion apps, authenticated business tools and content-rich mobile experiences. Its web support can also help teams reuse selected screens and application logic across channels.
When specialists help
Companies often bring in freelance expertise when a product must ship quickly, when a React Native codebase has become difficult to release, or when native integrations create delivery risk. They can set up the project, select the right Expo workflow, improve startup and rendering performance, and prepare reliable testing and store submissions. Berlin teams may combine local workshops with remote implementation across distributed product groups.
What strong experts deliver
Strong professionals understand where Expo abstractions are sufficient and where custom native modules are justified. They structure reusable components, handle offline states, protect credentials, and keep Android and iOS behavior consistent. They also document build profiles, update policies and recovery steps so the team can maintain the app after handover.
Choosing the right fit
Look for evidence of shipped Expo applications, not only general React experience. Ask how the specialist handled SDK upgrades, EAS Build failures, app signing, push notifications and production rollbacks. A good match can explain trade-offs between managed and bare workflows, communicate clearly with product and design teams, and adapt to on-site or remote collaboration in Berlin and beyond.
Frequently asked questions
Everything clients usually want to know about Expo, in one place.
Expo is used to build and release mobile applications with React Native for iOS and Android, with additional support for web experiences. It offers APIs and services for common needs such as routing, notifications, device access, builds and over-the-air updates.
Expo provides a more integrated workflow around React Native, including the Expo SDK and EAS services. Bare React Native offers direct control over native projects, while Expo can reduce setup and release work; the right choice depends on required native modules and the team's maintenance preferences.
A strong Expo specialist usually works confidently with React, TypeScript, Expo Router, state management and mobile testing. Experience with native iOS and Android concepts, CI/CD, app signing, APIs and analytics is also valuable when a project reaches production.
The required depth depends on the product. A small prototype may need solid React Native and Expo fundamentals, while a production app benefits from a professional who has handled SDK upgrades, EAS Build, native integrations, store review and release recovery.
Yes. Expo work is well suited to remote collaboration through version control, issue tracking, device testing and release pipelines. Berlin companies may still prefer occasional on-site workshops, especially for product discovery, design reviews or coordination with teams working in German and English.
Ask for examples of shipped applications and discuss the specialist's role in architecture, testing and releases. Review how they manage credentials, environment configuration, SDK updates and platform-specific behavior rather than judging quality from visual polish alone.
Expo can be introduced into an existing React Native application, but the migration path depends on its native dependencies and current project structure. A qualified professional should first audit native modules, build settings and release automation before recommending a staged migration.
With Expo, JavaScript and asset changes can often use EAS Update when they remain compatible with the installed native runtime. Changes to native code, permissions or the SDK generally require a new binary build and renewed store submission, so release planning must distinguish the two.
The average hourly rate of freelancers in Berlin, Germany who have used Expo in their recent projects is 94 €, which corresponds to a daily rate of about 751 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Expo in their recent projects, 100% hold at least a Bachelor's degree and 25% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used Expo in their recent projects have 14 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Berlin, Germany who have used Expo in their recent projects are German (100%), English (100%), and Japanese (25%).
The most common industries among freelancers in Berlin, Germany who have used Expo in their recent projects are Information Technology (100%), Banking and Finance (63%), and Healthcare (63%).
The most common business areas among freelancers in Berlin, Germany who have used Expo in their recent projects are Information Technology (100%), Product Development (100%), and Business Intelligence (63%).
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.
Countries:
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
