Senior Flutter Developer (Fintech)

TL;DR

Senior Flutter Developer (Fintech): Building and maintaining high-quality mobile trading applications across Android and iOS with an accent on multi-flavor architecture and clean, testable code. Focus on integrating real-time market data, ensuring app performance in a regulated financial environment, and collaborating with a distributed team on a Sunday-Thursday work schedule.

Location: Hybrid in Warsaw, Poland. Candidates must be available to work Sunday-Thursday to align with the Israeli team.

Company

hirify.global connects engineers with innovative startups and tech companies, providing R&D team integration along with full HR and employment support.

What you will do

• Design, develop, and maintain high-quality features for Android and iOS using Flutter.
• Write clean, structured, and testable code following established architectural patterns.
• Integrate real-time market data, charting, and third-party financial SDKs.
• Work within a multi-flavor build and release process for multiple brands.
• Troubleshoot production issues and optimize app performance and stability.
• Participate in code reviews and contribute to unit, widget, and integration testing.

Requirements

• 5+ years of professional software development experience.
• 4+ years of hands-on Flutter development on production applications.
• Strong command of Dart and modern state management (BLoC, Riverpod, Provider).
• Working knowledge of native Android and iOS build configurations and platform channels.
• Excellent written and verbal English proficiency.
• Must be available to work Sunday-Thursday.

Nice to have

• Experience in fintech, trading, or regulated industries.
• Familiarity with Firebase suite, product analytics, and charting libraries.
• Experience with FVM, monorepo workflows, and GitLab CI.
• Experience with AI-assisted development tools.

Culture & Benefits

• Supportive and well-organized work environment.
• Opportunity to work on innovative, high-impact financial products.
• Professional HR support and benefits package.
• Collaborative international team culture.