Contract Flutter Developer

London
1 week ago
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Spectrum IT's partner are an enterprise digital platform provider who deliver a widely used, real-world consumer mobile application. They are entering a key delivery phase and are looking for an experienced Contract Flutter contractor to join them and help deliver new features and enhancements within a time-critical product roadmap. In this role you'll be supporting upto 1.5 million customers across the UK and Europe.

This role has been deemed OUTSIDE IR35 and will be a remote working role with occasionally office visits to the West London/Uxbridge site.

You'll be joining a modern engineering function working on a production-scale mobile app that integrates with a large Azure cloud-based backend platform.

The Role

You will play a key role in designing and building new mobile features while improving existing functionality in a live Flutter application. The work is highly collaborative, involving close interaction with backend engineers working in a .NET / Azure cloud environment, as well as product and design teams. This is a fast-paced contract where delivery momentum and quality both matter.

Key Responsibilities

Design and develop new features in a live Flutter application (iOS, Android, Web)
Contribute to architectural decisions within a modular Flutter codebase (Bloc / Cubits)
Implement clean, scalable Dart code aligned with best practices
Integrate backend services via REST (previous gRPC exposure beneficial)
Implement and enhance mapping functionality (Mapbox mobile, Google Maps web)
Contribute to CI/CD pipeline improvements (Azure / GitHub)
Support app performance optimisation, crash reduction, and stability improvements
Work within Agile sprint cycles, delivering against milestone-driven roadmaps

Required Skills & Experience

Strong commercial experience developing Flutter mobile applications
Solid experience with Dart and Flutter architecture patterns
Experience delivering features in live, consumer-facing mobile apps
Strong understanding of mobile app state management
Experience integrating REST APIs and handling asynchronous data flows
Knowledge of mobile performance optimisation and debugging
Experience working in a cloud-connected mobile architecture

Technical Environment

Flutter / Dart
Backend services built in a .NET
Microsoft Azure cloud platform
Source control via GitHub
Delivery tracking using Jira
Documentation and collaboration in Confluence
CI/CD pipelines supporting mobile deliver

For more information and to submit your interest, please apply with an updated CV.

Spectrum IT Recruitment (South) Limited is acting as an Employment Business in relation to this vacancy

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