Senior Mobile Engineer – React Native, Expo, TypeScript

🔥 21 minutes ago

🇩🇪 Germany – Remote

⏳ Contract/Temporary

🟠 Senior

🖥 Software Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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easybill GmbH

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2007

☁️ SaaS

🛍️ eCommerce

🤝 B2B

SaaS • eCommerce • B2B

easybill GmbH is a company that provides cloud-based invoicing software solutions, allowing users to create electronic invoices, manage billing, and automate sales processes. Their platform integrates with various popular marketplaces and accounting systems, ensuring compliance with German GoBD regulations and upcoming EU e-invoicing mandates. They cater to a wide range of clients including freelancers, small businesses, and online retailers, offering efficiency and ease in handling billing and document management.

📋 Description

• Develop and enhance easybill-mobile using React Native, Expo, and TypeScript for iOS and Android • Translate requirements related to invoices and documents into intuitive mobile workflows and high-quality native interfaces • Evolve the app architecture and create maintainable structures for navigation, reusable components, forms, and data access • Integrate the REST API and ensure reliable data management, including typed interfaces, validation, caching, loading states, and error handling • Work at the intersection of the app and backend • Extend the REST API with PHP and Symfony as needed • Develop secure authentication and session management, while handling sensitive customer and business data with care • Account for performance and platform-specific considerations across changing network connections, app switching, and different devices • Ensure accessibility and multilingual support • Safeguard changes through automated tests and testing on simulators and real devices • Help shape build, release, and monitoring processes through publication in the app stores • Challenge requirements, contribute your own solution proposals, and support features from initial concept through release and ongoing development • Make intensive use of AI tools such as Claude Code, while taking responsibility for the quality, clarity, and accuracy of the results

🎯 Requirements

• Freelancer / self-employed contractor • Extensive senior-level experience with TypeScript, React Native, and Expo • Experience taking mobile applications beyond implementation through to release • Understanding of React, component architecture, state management, and asynchronous data flows • Knowledge of iOS and Android specifics, with a systematic approach to performance issues, platform bugs, and debugging • Proficient in REST API integration, with an understanding of API contracts, authentication, validation, and error handling • Ability to independently understand existing API endpoints, analyze issues between the app and backend, and extend interfaces independently • Experience with automated testing, traceable technical decisions, and maintainable code • Independent, pragmatic working style and clear communication • Fluent German and good English skills • Ideally, knowledge of PHP and Symfony • Additional advantages: experience with EAS, native modules in Swift or Kotlin, app store publishing, and mobile release processes • Published apps, open-source contributions, or public experiments on GitHub are welcome

🏖️ Benefits

• Remote-first team – no location-based restrictions • An inspiring and flexible work environment based on trust and personal responsibility • The opportunity to help shape the company’s strategy and culture • A committed team and the opportunity to work together on innovative solutions • Regular team events