Talha B.

I’m a Senior Mobile Application Developer with extensive experience building Android, iOS, Flutter, and React Native applications, specializing in mobile applications, payment solutions, Android POS, EMV, and scalable business platforms. My expertise goes far beyond POS development. I have worked on mobile and software solutions across healthcare, e-commerce, ride-hailing, payments, POS, and SaaS, helping businesses transform ideas and requirements into production-ready applications and scalable business solutions. I have hands-on experience designing, developing, and integrating solutions for Android POS terminals including PAX, Sunmi, Newland, Verifone, Urovo, Feitian, Ingenico, BBPOS, and POYNT, working with different payment SDKs, processors, hosts, acquirers, banks, and payment ecosystems. Core Expertise Mobile Development: Android, iOS, Flutter, React Native Android: Kotlin, Java, Jetpack Compose, Navigation Component, Material Design Architecture: MVVM, MVP, VIPER, Clean Architecture Dependency Injection: Hilt, Dagger, Koin Payment & POS: Android POS, payment SDK integration, transaction processing Card Technologies: MAG, EMV, NFC / Contactless Card Schemes: Visa, Mastercard, American Express (Amex) EMV Certification: Level 2 (L2) and Level 3 (L3) Payment Ecosystem: Hosts, processors, acquirers, banks, payment gateways POS Terminals: PAX, Sunmi, Newland, Verifone, Urovo, Feitian, Ingenico, BBPOS, POYNT Firebase: Authentication, Firestore, Realtime Database, Crashlytics, Analytics, FCM APIs & Networking: Retrofit, OkHttp, Volley, REST APIs Maps & Location: Google Maps, Location APIs, Places API OCR & QR: OCR solutions, QR Code scanning, ZXing Third-Party Integrations: Social APIs, payment APIs, SDK integrations, push notifications Industry Experience I have developed and contributed to applications across multiple business domains, including: Healthcare: Mobile and digital solutions for healthcare-related workflows and services E-commerce: Customer-facing applications, product/catalog experiences, orders, payments, and integrations Ride-Hailing: Location-based applications, maps, driver/customer workflows, and real-time services Payments & POS: End-to-end payment applications, POS integrations, EMV, NFC, card processing, and certification SaaS & Business Platforms: Helping businesses turn software ideas into practical, scalable SaaS products I also work closely with businesses at the idea and product-development stage, helping transform a SaaS concept into a real business opportunity—from understanding the problem and defining the product to selecting the right technology, designing the architecture, developing the MVP, and preparing the solution for scaling. I have experience taking applications through the complete development lifecycle, including architecture, development, third-party integrations, payment SDK integration, testing, troubleshooting, certification, deployment, and ongoing improvements. Whether you need a mobile application, cross-platform solution, Android POS application, payment/EMV integration, SaaS MVP, e-commerce platform, healthcare application, ride-hailing solution, or custom business application, I can help turn your requirements or idea into a secure, scalable, and production-ready product. If you have an idea, an existing application that needs improvement, or a complex integration that needs to be solved, let’s discuss it.