App Developer (Flutter)

About the role

DeWarmte is looking for an App Developer to build and improve two Flutter apps used by homeowners to control heat pumps and by field engineers for installation and maintenance. You will be responsible for the full development lifecycle, from design and coding to testing and release on iOS and Android. This role involves working with AI tools to improve development workflows while maintaining high standards for security and reliability.

Responsibilities

• Develop and maintain customer and employee-facing Flutter applications
• Design, build, test, and release new features for iOS and Android
• Evolve app architecture, state management, and shared components
• Collaborate with backend developers on API integration and documentation
• Improve automated testing, CI/CD, crash reporting, and release practices
• Utilize AI tools to support design, coding, testing, and documentation
• Document engineering practices and participate in code reviews

Required skills

• Flutter
• Dart
• App architecture
• State management
• REST APIs
• CI/CD
• Automated testing
• Version control

Nice to have

• Native iOS development
• Native Android development
• Offline-first apps
• Bluetooth
• Wi-Fi provisioning
• IoT
• HVAC

Benefits

• 27 vacation days
• 8% holiday allowance
• Stock Appreciation Rights (SAR) programme
• Daily lunch at the office
• Laptop
• Access to AI tools
• Team activities

About the Company

DeWarmte designs and manufactures smart, affordable heat pumps to help homes transition away from gas. They develop their own hardware, software, and services to ensure high-quality product performance.