Mobile App Developer at Umba

We are seeking a skilled and motivated Mobile App Developer to join our digital banking team. You will be responsible for designing, developing, testing, and maintaining secure and scalable mobile banking applications that deliver a seamless user experience. This role requires a solid understanding of mobile platforms and secure coding practices in the financial services industry. As a self-starter, you'll take ownership of the entire mobile development lifecycle, from architecture decisions to UI/UX implementation, working independently while collaborating with our product and backend teams.

What You'll Build

• Comprehensive fintech mobile app with loan origination, KYC verification, and payment processing
• Document management system with camera capture, scanning, and upload capabilities
• Real-time dashboards for business banking, payroll, and account management
• Multi-country platform supporting Kenya and Nigeria with localized features
• Secure financial transactions with biometric authentication and fraud prevention.

 Key Responsibilities

• Technical Leadership
• Architect and develop the complete Android application using modern Android technologies
• Design intuitive user interfaces that translate complex financial workflows into simple, elegant experiences
• Integrate 100+ API endpoints for comprehensive platform functionality
• Implement security best practices including certificate pinning, data encryption
• Build offline-first architecture to handle poor connectivity across African markets
• Product Development
• Translate business requirements into technical solutions independently
• Collaborate with design and product teams to create pixel-perfect implementations
• Optimize performance for large datasets and complex financial operations
• Implement real-time features including notifications, messaging, and live updates
• Quality & Innovation
• Establish testing frameworks and maintain high code quality standards
• Drive technical decisions around architecture, libraries, and development practices
• Stay current with Android trends and introduce innovative solutions

Required Qualifications

• 5+ years of Android development with proven track record of shipping production apps
• Expert-level Kotlin and modern Android SDK knowledge
• Jetpack Compose mastery for building complex, dynamic UIs
• Strong architecture skills (MVVM, Clean Architecture, dependency injection)
• API integration expertise (Retrofit, OkHttp, REST APIs, JWT authentication)
• Database proficiency (Room, SQLite) and offline data synchronization
• Fintech Experience
• 2+ years in financial services or fintech application development
• Security-focused development with understanding of financial regulations
• Payment integration experience (mobile money, bank transfers, transaction processing)
• Document management systems and KYC/AML compliance knowledge
• Design & UX Intuition
• Strong design sensibility with ability to implement pixel-perfect UIs
• Material Design expertise and understanding of modern design principles
• User experience focus with ability to simplify complex financial workflows
• Attention to detail in animations, transitions, and micro-interactions
• Self-Starter Qualities
• Independent problem-solving with minimal supervision required
• Proactive communication and ability to drive projects forward
• Technical decision-making skills and ownership mentality
• Adaptability to fast-paced startup environment

Preferred Qualifications

• African fintech market experience (Kenya, Nigeria, or similar markets)
• M-Pesa or mobile money integration experience
• Multi-country application development with localization
• React or TypeScript knowledge for cross-platform understanding
• CI/CD and DevOps experience with Android deployment
• Open-source contributions or technical writing experience