Senior Flutter Developer

Renmoney

Russia Remote permanent

Posted: January 2, 2026

Quick Summary

A Senior Flutter Developer will be responsible for leading technical initiatives on a production mobile banking application, with a focus on performance optimization, code quality, and testing practices. The ideal candidate will have expertise in Flutter/Dart, Clean Architecture, and repository pattern, and be able to mentor other developers. The successful candidate will be responsible for delivering major features and ensuring high reliability requirements are met.

Required Skills

Job Description

Lead technical initiatives on a production mobile banking application with 150+ screens, complex third-party integrations, and high reliability requirements. You will make architectural decisions, improve code quality and testing practices, mentor other developers, and own the technical delivery of major features.

Requirements:
- Flutter/Dart: 4+ years experience. Expert-level Dart including generics, extensions, mixins, and isolates. Can optimize performance and diagnose memory issues
- Architecture: Can design and enforce Clean Architecture. Has implemented repository pattern, use cases, and entity mapping from scratch. Understands when to deviate from patterns
- State Management: Deep experience with Provider at scale. Can architect state to avoid unnecessary rebuilds and handle complex state dependencies
- Dependency Injection: Can set up and maintain DI with get_it + injectable. Understands lazy vs eager loading, scoped instances, and testing implications
- Error Handling: Experience with functional error handling. Can design consistent error propagation across layers
- Networking: Can architect network layers including retry logic, caching strategies, and offline handling
- Security: Understands mobile security: secure storage, biometric authentication, session management, and data encryption
- Testing: Can write and advocate for unit tests, widget tests, and integration tests. Experience mocking dependencies
- Platform Integration: Can write platform channels for iOS/Android. Understands native build systems (Gradle, Xcode)
- Third-party SDKs: Has integrated payment gateways, analytics, or identity verification SDKs. Can troubleshoot SDK conflicts.

Expectations
- Design technical solutions for complex features
- Refactor legacy code safely without breaking production
- Establish and enforce coding standards across the team
- Improve testing coverage and CI/CD reliability
- Review pull requests thoroughly and provide constructive feedback
- Mentor mid-level developers
- Investigate and resolve production incidents
- Make architectural decisions and document trade-offs
- Communicate technical constraints and timelines to product stakeholders

Benefits:
- Opportunity: The opportunity to work in an innovative fintech company with a global reach

- Benefits: Competitive salary, paid vacations and additional day-offs

- Growth Potential: Accelerating your product leadership career in a high-growth, innovation-driven fintech

- Purpose: Build tools that empower thousands of clients to thrive and succeed.

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