Senior Mobile Engineer – React Native, Expo, TypeScript

🔥 1 minute ago

🇩🇪 Germany – Remote

⏳ Contract/Temporary

🟠 Senior

🖥 Software Engineer

👻 Ghost score 10%

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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

• Further develop 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 REST APIs and ensure reliable data management, including typed interfaces, validation, caching, loading states, and error handling • Extend the REST API based on PHP and Symfony when 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 conditions, app switching, and different devices • Ensure accessibility and multilingual support • Safeguard changes through automated tests and validation on simulators and real devices • Help shape build, release, and monitoring processes through to publication in the app stores • Challenge requirements, contribute your own solution proposals, and support features from ideation through release and continuous improvement • Make intensive use of AI tools such as Claude Code, while taking responsibility for the quality, clarity, and correctness of the results

🎯 Requirements

• Freelancer status • 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 platform specifics • Systematic approach to performance issues, platform-related bugs, and debugging • Strong experience integrating REST APIs, with an understanding of API contracts, authentication, validation, and error handling • Automated testing, well-reasoned technical decisions, and maintainable code • Independent, pragmatic approach to work and clear communication • Fluent German and good English skills • PHP and Symfony knowledge is a plus • 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 requirement • 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