Flutter Developer
Posted Today by BrightBox Group
£580 Per day
Outside
Undetermined
United Kingdom
Summary: The Flutter Developer role involves joining a major UK-based investment platform to contribute to a long-term mobile app program. The position focuses on building and maintaining high-quality Flutter applications, ensuring performance and reliability for a high-traffic product. Collaboration with cross-functional teams is essential to deliver features end-to-end while adhering to engineering best practices. The role requires a strong understanding of mobile application development and testing methodologies.
Key Responsibilities:
- Build and maintain production-grade Flutter applications
- Deliver features end-to-end, from implementation through to release
- Contribute to testing across unit, widget, integration, and E2E
- Support improvements in performance, reliability, and maintainability
- Work with CI/CD pipelines (GitHub Actions, Bitrise, etc.)
- Collaborate closely with product, design, and QA
- Follow and contribute to engineering best practices
Key Skills:
- Commercial experience with Flutter and Dart
- Experience building and shipping mobile applications
- Understanding of testing approaches and automation
- Familiarity with CI/CD in mobile environments
- Ability to write clean, maintainable code
- Good understanding of performance, UX, and mobile fundamentals
Salary (Rate): £580/day
City: undetermined
Country: United Kingdom
Working Arrangements: undetermined
IR35 Status: outside IR35
Seniority Level: Mid-Level
Industry: IT
The role You’ll join a major UK-based investment platform, embedding directly into a long-term mobile app programme. You’ll work on a high-traffic product used by thousands of customers, focused on performance, reliability, and user experience at scale. You’ll contribute to Flutter delivery within the project, building features, improving app quality, and helping shape scalable solutions in production. You’ll work closely with engineers, product, and QA in a cross-functional client team, delivering features end-to-end with a strong focus on quality.
What You’ll Do
- Build and maintain production-grade Flutter applications
- Deliver features end-to-end, from implementation through to release
- Contribute to testing across unit, widget, integration, and E2E
- Support improvements in performance, reliability, and maintainability
- Work with CI/CD pipelines (GitHub Actions, Bitrise, etc.)
- Collaborate closely with product, design, and QA
- Follow and contribute to engineering best practices
Required Experience
- Commercial experience with Flutter and Dart
- Experience building and shipping mobile applications
- Understanding of testing approaches and automation
- Familiarity with CI/CD in mobile environments
- Ability to write clean, maintainable code
- Good understanding of performance, UX, and mobile fundamentals