Zubair Khan

Senior Mobile App Engineer | AI Engineer

DevEntia Tech Pvt Ltd • Fulltime

Dec 2022 - Present • 3 yrs 5 mos

Senior Mobile App Engineer specializing in Flutter development with proven AI integration expertise. I have built and launched 10+ production-ready applications currently serving active users on both App Store and Google Play across healthcare, FinTech, marketplace, and business management sectors. My AI-powered portfolio includes HealthiPlate (AI meal scoring with 30+ nutrient analysis), GetSimpple (AI-driven tax filing with OCR processing), and NOAH AI (GPT-powered assistant with document analysis). These demonstrate my capability to integrate OpenAI APIs, machine learning models, and natural language processing into user-friendly mobile interfaces. I specialize in cross-platform development using Flutter, delivering simultaneous iOS and Android deployment from single codebases while maintaining native-level performance. My technical stack includes Firebase (Authentication, Firestore, Cloud Functions, Storage), RESTful APIs, payment gateways (Stripe, Flutterwave, Paystack), real-time synchronization, and push notifications. My experience spans two-sided marketplaces (Omni Connects, Local Caregiver), multi-role enterprise platforms (Falke Facility Management, WorkBridge HRM), healthcare solutions (AskMed with HIPAA compliance), and booking systems with geolocation. I have implemented in-app subscriptions, OCR data extraction, barcode scanning, voice processing, gamification, and admin dashboards. I build scalable applications with clean architecture, state management (Riverpod, Provider, Bloc), and security-first approaches for sensitive data. My process emphasizes user experience, performance optimization, and production-quality code supporting long-term growth. I manage complete development lifecycles from concept to store deployment, including UI/UX implementation, backend setup, integrations, testing, and documentation.

Full Stack Mobile App Developer

IXPERTS • Fulltime

May 2022 - Mar 2024 • 1 yr 10 mos

As a 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗠𝗼𝗯𝗶𝗹𝗲 𝗮𝗻𝗱 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 at IXPERTS, I led the design and development of 𝗰𝗿𝗼𝘀𝘀-𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 𝗮𝗻𝗱 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝘃𝗲 𝘄𝗲𝗯𝘀𝗶𝘁𝗲𝘀 for clients across healthcare, eCommerce, and social media industries. I worked with 𝗙𝗹𝘂𝘁𝘁𝗲𝗿, 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲, 𝗮𝗻𝗱 𝗠𝗘𝗥𝗡 𝗦𝘁𝗮𝗰𝗸 to build scalable, high-performance applications and implemented 𝗔𝗣𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀, 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲, 𝗮𝗻𝗱 𝗔𝗪𝗦 𝗰𝗹𝗼𝘂𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁𝘀 to ensure seamless functionality. 𝗞𝗲𝘆 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝗱: Building and maintaining 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 𝗳𝗼𝗿 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗮𝗻𝗱 𝗶𝗢𝗦 using Flutter & React Native. Developing 𝗰𝘂𝘀𝘁𝗼𝗺 𝘄𝗲𝗯 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀, 𝗖𝗥𝗠𝘀, 𝗮𝗻𝗱 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 using MERN Stack. Leading the 𝗨𝗜/𝗨𝗫 𝗶𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻, optimizing app performance, and ensuring responsiveness.