XTN-74F3605 FLUTTER DEVELOPER - KMC Solutions Inc

At Arch, we deliver bespoke software solutions that help organisations solve complex problems through technology. With a focus on quality, performance, and security, our team builds custom web applications for clients across multiple industries, from startups to enterprise-level businesses.

We’re a growing UK-based digital agency with a strong engineering culture and a commitment to clean, maintainable code. As part of our continued expansion, we’re looking to bring an experienced offshore Flutter Developer into our team to help us deliver world-class web applications for our clients.

HMO on Day 1 plus 2 free dependents

Group Life Insurance

Fixed weekends off

The Role

This is a remote, full-time position for an experienced Flutter Developer who will work closely with our UK engineering and project delivery teams. You’ll be responsible for developing, maintaining, and improving Flutter-based applications, ensuring best practices in performance, scalability, and security.

The ideal candidate will be proactive, organised, and confident communicating with both technical and non-technical stakeholders.

Key Responsibilities

Application Development

• Build and maintain production-ready Flutter applications for iOS, Android, and Web.
• Implement clean, testable, and maintainable code using the Bloc pattern and other state-management approaches where appropriate.
• Integrate applications with RESTful APIs and authentication services (OAuth, JWT, etc.).
• Design UI components that adapt gracefully across different screen sizes, resolutions, and device orientations.
• Write unit, widget, and integration tests to ensure reliability and stability.

State Management & Architecture

• Use Bloc (and related libraries) to manage complex state in a predictable, scalable way.
• Structure projects using clean architecture principles, separation of concerns, layered organisation, and reusable components.
• Contribute to technical decisions around architecture, performance optimisation, and lifecycle management.

Build & Release Process

• Configure build pipelines for iOS and Android, including signing, environment variables, and flavor-based builds.
• Work with CI/CD pipelines to automate builds, testing, and deployments.
• Diagnose and resolve build issues across environments (local, staging, production).

Security & Authentication

• Implement secure authentication flows.
• Follow OWASP Mobile and API security best practices to protect user data.
• Ensure sensitive data is handled safely (e.g., avoiding hard-coded secrets, secure storage, HTTPS enforcement).

Collaboration & Delivery