Senior Mobile Developer (Flutter)

Location: Herzliya (IL)

Experience Level: Senior

Description

Finonex is a long-standing, stable trading-platform company, delivering advanced online trading technology to global partners for over a decade.

Join our Mobile R&D team and help build high-scale mobile trading applications used by customers worldwide.

As a Senior Flutter Developer, you will design, develop, and maintain cross-platform mobile applications while contributing to architecture, performance, and engineering best practices in a fast-paced fintech environment.

On this role you will

• Develop and maintain Flutter applications for Android and iOS.
• Contribute to architecture, scalability, performance, and code quality initiatives.
• Build and integrate REST APIs, WebSockets, and third-party SDKs.
• Collaborate with Product, Design, Backend, QA, and DevOps teams.
• Support release processes, deployments, and production troubleshooting.
• Improve application stability, performance, and user experience.
• Mentor team members and participate in code reviews.

Requirements

• 7+ years of software development experience.
• 5+ years of hands-on Flutter development in production environments.
• Strong knowledge of Dart, Flutter architecture, and state management.
• Experience with native Android and iOS integrations.
• Experience with CI/CD pipelines and mobile release processes.
• Experience working with REST APIs and real-time communication technologies.
• Proven experience publishing applications to Google Play and the App Store.
• Strong problem-solving skills and excellent English communication.

Will be nice that you have

Experience in fintech, trading, forex, or regulated industries.

Experience with Firebase (Crashlytics, Analytics, Remote Config).

Experience with Mixpanel, AppsFlyer, Braze, or similar tools.

Experience with WebSocket/SignalR implementations.

Familiarity with FVM, monorepo environments, and automated testing.

Knowledge of OWASP Mobile security standards.

Position Summary