> Markdown version of [/jobs/ext/1308019-mobile-engineer-flutter](https://www.wearedevelopers.com/jobs/ext/1308019-mobile-engineer-flutter). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Engineer (Flutter) - **Company:** Mlabs Ltd - **Location:** Málaga, Spain (Remote available) - **Salary:** €140,000.0 - **Contract:** Permanent contract - **Skills:** Flutter, Multitier Architecture, Apple IOS, Code Generation, Dependency Injection, High-Frequency Trading, Data Processing, Ethereum, Dart, Codebase, Graphql, Web3.js, Stream Processing - **Published:** July 17, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role We are seeking a highly proficient Mobile Engineer to own and build our native mobile trading experience from the ground up. You will use Flutter and Dart to deliver a high-performance, cross-platform application (iOS and Android) that adheres to strict architectural standards and seamlessly integrates with our on-chain protocols., + Architecture: Proven experience implementing Clean Architecture or Feature-First patterns, with a focus on dependency injection and separation of concerns. + Web3 Integration: Experience with Ethereum Dart libraries such as web3dart, eth_sig_util, or similar tools for on-chain interaction. + Navigation: Proficiency with the GoRouter package for navigation. Preferred Qualifications + Previous experience building DeFi or traditional trading platforms. + Understanding of perpetuals trading, Real World Asset (RWA) markets, and core DeFi primitives. + Experience with high-frequency trading systems or real-time data processing. + Experience with GraphQL Code Generator. + Contributions to open-source projects. ## Description + Application Engineering: Develop high-performance, cross-platform mobile applications that deliver a native-tier experience on both iOS and Android. + Scalable Architecture: Architect scalable and testable codebases using Clean Architecture principles, enforcing strict separation of concerns and utilizing modular dependency injection. + Web3 Mobility: Architect and implement seamless mobile-first Web3 authentication and wallet connectivity (e.g., using WalletConnect, Reown AppKit, or Privy) for secure on-the-go trading, signing, and transaction lifecycles. + Data Handling: Manage networking via GraphQL and REST, utilizing code generation tools (like freezed/json_serializable) for robust, immutable data models. + Quality Assurance: Write comprehensive Unit and Widget tests to ensure stability, reliability, and consistency across both iOS and Android platforms. + Core Technologies: Deep experience with Flutter 3.x, Dart, and the BLoC pattern for state management. ## Related Videos - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Flutter Packages and Plugins - A Look Under the Hood](https://www.wearedevelopers.com/videos/555-flutter-packages-and-plugins-a-look-under-the-hood) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom) - [Writing truly cross plattform applications using flutter](https://www.wearedevelopers.com/videos/456-writing-truly-cross-plattform-applications-using-flutter) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Using Serious Tech for a Silly Game - How to Build an MVP with Flutter](https://www.wearedevelopers.com/videos/728-using-serious-tech-for-a-silly-game-how-to-build-an-mvp-with-flutter) ## Related Articles - [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter) - [Flutter Developer Salary [2023]](https://www.wearedevelopers.com/magazine/199-flutter-developer-salary-2023) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [8 No-Code App Builders](https://www.wearedevelopers.com/magazine/300-8-no-code-app-builders) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)