> Markdown version of [/jobs/ext/3218609-app-developer-flutter](https://www.wearedevelopers.com/jobs/ext/3218609-app-developer-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). --- # App Developer (Flutter) - **Company:** DeWarmte - **Location:** Utrecht, Netherlands - **Salary:** €4,500.0 - €6,000.0 - **Contract:** Permanent contract - **Skills:** Flutter, Application Programming Interfaces (APIs), Artificial Intelligence, Android Software Development, IOS Applications, Applications Architecture, App Store (IOS), User Authentication, Automation of Tests, Bluetooth, Code Coverage, Code Review, Continuous Integration, Software Debugging, Django Web Framework, Push Technology, Software Engineering, Wi-Fi Technology, Technical Debt, AI Coding Agents, Backend, Production Code, Performance Monitor, Dart, Google Play, Restful APIs, Software Version Control, Automation Anywhere - **Published:** September 29, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=24f5357e901f2a20 ## About the Role * Solid hands-on experience building and shipping production mobile apps with Flutter and Dart. * Experience releasing and maintaining apps on both the App Store and Google Play. * A solid grasp of app architecture and state management (e.g. Riverpod, Bloc or Provider). * Experience integrating REST APIs, authentication and push notifications. * A track record of taking functionality from design through implementation, testing and release to real-world use. * Strong engineering fundamentals: version control, automated testing, CI/CD, crash reporting and performance monitoring. * You use AI coding tools in practice and understand both their value and their limits. * A feel for user experience and a knack for making complex information simple. * The ability to bring clarity to an environment where systems and processes are still taking shape. Experience with native iOS or Android development, offline-first apps, connected devices such as Bluetooth or Wi-Fi provisioning, IoT, energy or HVAC is useful, but not essential. What matters most is that you can learn a complex physical product and take responsibility from idea to release., * You fix urgent problems without letting short-term workarounds become long-term architecture. * You care about the details users notice, and the ones they don't. * You're curious about new AI tools, try them quickly and share what works. * You explain technical topics clearly to people from any background. * You balance shipping today with the investments needed to scale tomorrow. * You share knowledge by default and care about what the team can own together. ## Description * Build the features homeowners and installers to use and control heat pumps * Ensure that the DeWarmte apps stand out in the market with regards to usability functionality and innovation. * Make sure the app holds up in real-world conditions, like a basement with poor connectivity. Build a strong app platform * Work directly in the production Dart/Flutter codebases for iOS and Android. * Design, build, test and release new features, from first sketch to the App Store and Google Play. * Evolve app architecture, state management and shared components across both apps. * Work with our backend developers on clean, well-documented APIs. * Improve automated testing, CI/CD, crash reporting, analytics and release practices. * Diagnose and fix issues that span the apps, our Django backend and devices in the field. Build with AI * Use AI tools to support design, coding, testing, reviews and documentation. * Help the team improve its AI workflows, shared context and quality checks. * Try new tools, keep what works and share what you learn. * Hold AI-assisted code to the same standards as any other production code. Share ownership * Turn implicit knowledge into clear documentation, tooling and repeatable engineering practices. * Write code that other engineers can easily understand, test and safely change. * Take part in code reviews and technical decision-making. Work across the company This role reaches beyond app development. You'll work with colleagues in product, backend, hardware, controls, installation and service-and listen closely to customers-to solve today's issues without compromising the apps for tomorrow. What success looks like In your first few months * You understand both apps, how they connect to our backend and heat pumps, and where the risks are. * You can independently build, debug and release changes to both apps through the team's review and release practices. * The most important technical debt and quality issues are visible and prioritised. As the role develops * New features ship predictably, safely and with good test coverage. * Customers trust the app to control their heat pump: crash rates go down and app store ratings go up. * Thanks to the employee app, installations and service visits are faster and have fewer errors. * The team uses AI tools confidently and responsibly in its day-to-day work. * Both apps are understood and maintained by more than one person. ## Related Videos - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Is Flutter ready for the web yet? - A live coding comparison between Flutter and React](https://www.wearedevelopers.com/videos/401-is-flutter-ready-for-the-web-yet-a-live-coding-comparison-between-flutter-and-react) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Writing truly cross plattform applications using flutter](https://www.wearedevelopers.com/videos/456-writing-truly-cross-plattform-applications-using-flutter) - [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) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [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) - [8 No-Code App Builders](https://www.wearedevelopers.com/magazine/300-8-no-code-app-builders) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)