About the Role
The Senior Full Stack Mobile Application Developer is responsible for designing, developing, and deploying scalable, secure, and high-performance mobile applications and backend services. You will lead end-to-end mobile app development — from UI/UX implementation and API integration to cloud deployment and production support — within a fast-paced FinTech / Digital Payments environment.
This role requires strong technical expertise in Flutter, React Native, Android/iOS development, RESTful APIs, cloud platforms, and database management, combined with a deep commitment to security, compliance, and user-centered design.
Key Responsibilities
Mobile Application Development
- Design, develop, and maintain cross-platform mobile applications using Flutter or React Native
- Implement responsive, intuitive, and accessible mobile UIs following modern UI/UX principles and design systems
- Develop and maintain native Android (Kotlin/Java) and iOS (Swift/Objective-C) modules as needed
- Optimize mobile application performance, startup time, and memory usage across device types and OS versions
Backend & API Development
- Build and integrate RESTful APIs and Microservices for mobile front-end consumption
- Design and manage scalable backend services using modern frameworks and cloud-native architectures
- Handle asynchronous operations, data caching, and efficient API communication patterns
Security & Authentication
- Implement secure authentication and authorization mechanisms:
o OAuth 2.0
o JWT (JSON Web Tokens)
o Single Sign-On (SSO)
o Biometric Authentication (fingerprint, face ID)
- Enforce secure coding practices aligned with PCI-DSS and banking security standards
Third-Party Integrations
- Integrate essential third-party services including:
o Payment Gateways
o SMS/OTP Services
o Push Notifications (Firebase, APNs)
o Identity Verification & eKYC Solutions (Regula, Daon, Smart Engines SDKs)
o Apple Pay & Google Pay
o QR Payments & NFC Payments
Database & Cloud Management
- Work with relational and NoSQL databases:
o PostgreSQL | MySQL | SQL Server | MongoDB
- Deploy and manage applications on Microsoft Azure (or equivalent cloud platforms)
- Implement CI/CD pipelines for automated build, test, and deployment workflows
Testing, Quality & Deployment
- Perform unit testing, integration testing, and UI testing to ensure application reliability
- Conduct performance tuning, memory profiling, and load testing
- Participate in UAT/SIT environments for release management and defect resolution
- Troubleshoot production issues and provide timely resolution support
Collaboration & Leadership
- Work closely with product managers, UX/UI designers, QA teams, and business stakeholders
- Participate in code reviews and enforce development standards and best practices
- Mentor junior developers, guide technical decision-making, and contribute to team growth
- Prepare and maintain technical documentation, API references, and architectural guidelines
- Stay current with mobile development trends, FinTech innovations, and platform updates
Required Qualifications & Experience
Education & Experience
- Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field (or equivalent professional experience)
- 5+ years of hands-on experience in full-stack mobile application development
- Proven experience building and deploying cross-platform mobile apps using Flutter or React Native
- Strong portfolio of end-to-end mobile applications delivered to production
Technical Skills
- Expert proficiency in Flutter/Dart and/or React Native/JavaScript/TypeScript
- Strong knowledge of native Android (Kotlin/Java) and iOS (Swift/Objective-C) development
- Deep understanding of RESTful APIs, Microservices architecture, and asynchronous programming
- Solid experience with secure authentication (OAuth 2.0, JWT, SSO, Biometric)
- Experience integrating payment gateways, push notifications, and eKYC SDKs
- Strong database skills: PostgreSQL, MySQL, SQL Server, MongoDB
- Cloud deployment experience on Microsoft Azure
- Proficiency with Git, CI/CD pipelines, and modern DevOps practices
- Knowledge of PCI-DSS compliance, data encryption, and secure data storage
Professional Competencies
- Strong analytical and problem-solving abilities with meticulous attention to detail
- Excellent communication and cross-functional teamwork skills
- Proven ability to work in agile environments and manage multiple priorities
- Customer-focused mindset with commitment to delivering exceptional user experiences
- Self-motivated learner with passion for FinTech, digital payments, and banking innovation
Preferred Skills & Attributes
- FinTech / Digital Payments / Banking domain experience — especially in payment gateways, digital wallets, and eKYC onboarding flows
- Experience integrating Apple Pay, Google Pay, QR Payments, and NFC-based payments
- Hands-on experience with Regula, Daon, or Smart Engines identity verification SDKs
- Experience with PCI-DSS compliance and financial data security standards
- Background in Digital Wallets and Super App architectures
- Experience in Microservices Architecture and containerization (Docker, Kubernetes)
- Exposure to AI-powered mobile applications, chatbots, and recommendation engines
- Familiarity with multi-language UI support (English/Arabic)
- Experience with unit testing frameworks (JUnit, XCTest, Flutter Test) and TDD/BDD practices
Pay: From QAR8,000.00 per month
Location
Work Location: In person
