> Markdown version of [/jobs/ext/3059120-senior-flutter-engineer](https://www.wearedevelopers.com/jobs/ext/3059120-senior-flutter-engineer). 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). --- # Senior Flutter Engineer - **Company:** Rullion - **Location:** London, UK - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Flutter, Apple IOS, Application Integration Architecture, Application Performance Management, Automation of Tests, Software Quality, Code Review, Continuous Integration, Mobile Application Software, Cloud Services, Backend, Git, Kotlin, Code Testing, Dart, Restful APIs - **Published:** September 25, 2026 - **Apply:** https://www.totaljobs.com/job/senior-flutter-engineer/rullion-limited-job108040610 ## About the Role * Extensive commercial experience developing mobile applications with Flutter and Dart. * Strong understanding of mobile application architecture and design patterns. * Experience integrating APIs and working with cloud-based services. * Proven track record of delivering production-ready applications. * Knowledge of state management solutions. * Experience with Git, CI/CD pipelines, and automated testing. * Strong problem-solving and stakeholder engagement skills. * Experience mentoring developers and leading technical initiatives. * Knowledge of native Android (Kotlin) or iOS (Swift) development. * Previous experience working within Agile delivery teams. ## Description Join a dynamic energy provider dedicated to sustainable solutions in the UK. We are seeking an experienced Senior Flutter Engineer to join a fast-paced development team delivering high-quality mobile applications. You will play a key role in designing, developing, and maintaining cross-platform applications using Flutter, while contributing to architecture decisions, code quality, and engineering best practices., Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London. It is a full-time role, 37 hours per week. If this role feels right, send us your CV., * Design, develop, and maintain scalable Flutter applications for iOS and Android. * Collaborate with Product Managers, UX/UI Designers, and Backend Engineers to deliver new features. * Write clean, maintainable, and well-tested code. * Lead technical discussions and provide guidance to other developers. * Optimise application performance, reliability, and security. * Participate in code reviews and champion engineering best practices. * Integrate RESTful APIs and third-party services. * Support CI/CD pipelines and automated testing processes. * Opportunity to work on innovative mobile products. * Collaborative and highly skilled engineering team. ## Related Videos - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/955-dart-a-language-believed-dead-experiences-a-new-bloom) - [Flutter Packages and Plugins - A Look Under the Hood](https://www.wearedevelopers.com/videos/555-flutter-packages-and-plugins-a-look-under-the-hood) ## 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) - [8 No-Code App Builders](https://www.wearedevelopers.com/magazine/300-8-no-code-app-builders) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)