Mubeen U.

𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with 5+ years of experience building high-performance, cross-platform applications with a strong focus on Kiosk and POS ecosystems. I specialize in developing 𝗺𝗶𝘀𝘀𝗶𝗼𝗻-𝗰𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝘀𝗲𝗹𝗳-𝘀𝗲𝗿𝘃𝗶𝗰𝗲 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 used in real-world retail environments — where performance, stability, and reliability are non-negotiable. Over the years, I’ve worked on enterprise-grade solutions for global QSR brands including 𝗣𝗶𝘇𝘇𝗮 𝗛𝘂𝘁 (Pakistan, South Africa, Qatar) and 𝗞𝗙𝗖, delivering systems that handle continuous user traffic with 𝟵𝟵.𝟵% 𝘂𝗽𝘁𝗶𝗺𝗲. --- 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • Payment terminal integrations (Allied Bank, QNB, Bank Alfalah) • Hardware-software interoperability (POS devices, printers, kiosk systems) • Flutter (Android & Windows) for production-scale applications • Clean Architecture & scalable system design --- 𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴: • Proven experience in building 𝟮𝟰/𝟳 𝗵𝗶𝗴𝗵-𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 • Strong grip on payment workflows & transaction lifecycles • Ability to design fault-tolerant systems for real-world environments • Experience leading teams, mentoring developers, and improving code quality --- 𝗜𝗻𝘁𝗲𝗿𝗲𝘀𝘁𝘀 & 𝗙𝗼𝗰𝘂𝘀: • Payment systems & fintech solutions • Offline-first and real-time architectures • Self-service kiosks & automation systems --- 💡 Open to opportunities in fintech, retail tech, and large-scale system development. --- “𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝗱𝗼𝗻’𝘁 𝗰𝗿𝗮𝘀𝗵 𝘄𝗵𝗲𝗻 𝗶𝘁 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 𝗺𝗼𝘀𝘁.” ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ CORE EXPERTISE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Flutter Developer • Expert Flutter Developer • Flutter App Developer • Flutter Mobile App Developer • Cross-Platform Mobile App Development • iOS & Android App Developer • Dart - Responsive Flutter Apps • Flutter Web Developer • Flutter Web App • FlutterFlow Developer ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔧 BACKEND & DATABASE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Firebase • Flutter Firebase Developer • Supabase • Flutter Supabase Developer • Node.js Backend • NestJS Backend • Flutter Backend Solutions • Full-Stack Flutter App Development • REST API • GraphQL • Flutter API Integration - Realtime Database (Firebase & Supabase) • WebSocket Integration ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💳 PAYMENTS & INTEGRATIONS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Payment Integration • Stripe • Razorpay • PayPal • In-App Purchases • Google Maps Integration • Real-Time Chat • Push Notifications (FCM) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ MVP Development • Flutter MVP Development • SaaS App Development • Marketplace Apps • E-commerce Apps • Dating Apps • AI-Powered Flutter Apps • Flutter Figma Conversion - App Store & Play Store Deployment ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━