Senior Flutter Engineer

• *Senior Flutter Engineer – Fintech Mobile App**

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• *Location:** Remote

• *Employment:** Full\-time

• *Experience:** 7\+ years of mobile development with strong Flutter experience

• *About the Role**

We are looking for an exceptional **Senior Flutter Engineer** to take significant ownership of a production fintech mobile application for our client.

The application handles financial transactions and therefore requires substantially higher standards of reliability, security and transaction handling than a typical consumer mobile application.

You will be the primary mobile engineer within a small, senior engineering team and will own the quality and architecture of their Flutter application across supported mobile platforms.

• *Responsibilities**

• Own Flutter application architecture
• Develop new customer journeys and features
• Integrate backend APIs and financial services
• Implement secure authentication and biometric flows
• Build reliable payment journeys
• Handle transaction timeouts and delayed responses
• Handle interrupted payment sessions safely
• Implement secure local storage
• Integrate push notifications
• Implement deep links
• Maintain multilingual application support
• Optimize application performance
• Handle device and OS compatibility
• Implement analytics and crash reporting
• Build automated mobile tests
• Manage application releases
• Investigate production issues
• Participate in architecture and code reviews
• *Required Skills**
• ------------------

Strong experience with

• Flutter
• Dart
• Mobile application architecture
• State management
• REST APIs
• Authentication
• Biometrics
• Secure storage
• Push notifications
• Deep linking
• Localization
• Automated testing
• Git
• CI/CD

Strong understanding of both Android and iOS application behavior is required.

• *Fintech Experience**
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Experience developing financial applications is highly desirable, including:

• Wallets
• Banking applications
• Payment applications
• Remittance applications
• Payment gateways
• Merchant payment applications
• *Financial UX Reliability**
• ---------------------------

You should understand that financial applications require special handling. For example:

• A customer taps **Pay**.
• The request reaches the backend.
• The payment is processed.
• The mobile network disappears before the app receives confirmation.

What should the application show? What happens when the customer reopens the application? What prevents the customer from accidentally paying twice?

They want engineers who think about the entire transaction lifecycle rather than simply moving users between screens.

• *Product Quality**
• ------------------

Their application serves a broad customer base and must remain

• Simple
• Fast
• Reliable
• Accessible
• Secure
• Easy to understand
• Resilient on poor mobile networks

You should care deeply about the small details that determine whether customers trust a financial application.

• *The Type of Engineer They Want**
• ---------------------------------

We are looking for someone who takes ownership of the entire mobile experience for them. You should be comfortable working directly with product, backend and engineering leadership and should be willing to challenge a proposed solution when you believe there is a safer or simpler approach.

This is not a role for someone who only converts Figma designs into Flutter screens. We are looking for someone who wants to **own a fintech mobile product**.