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I’m a Senior Flutter Engineer with 6+ years building scalable Android & iOS apps in fintech, automotive/EV, and healthcare. I specialize in secure payments, BLE integrations, real-time systems, and performance optimization from architecture through production releases. Over my career, I’ve led mobile development for payment-enabled products, built wallet and authentication systems, delivered telemedicine and POS/crypto features, and contributed to backend services and cloud deployments. I’m focused on reliability, security, and delivering fast, stable apps in production.…I’m a Senior Flutter Engineer with 6+ years building scalable Android & iOS apps in fintech, automotive/EV, and healthcare. I specialize in secure payments, BLE integrations, real-time systems, and performance optimization from architecture through production releases. Over my career, I’ve led mobile development for payment-enabled products, built wallet and authentication systems, delivered telemedicine and POS/crypto features, and contributed to backend services and cloud deployments. I’m focused on reliability, security, and delivering fast, stable apps in production.

Zark Khan

Software Engineer, App Developer, Back-End Developer, +2

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I’m a Senior Flutter Engineer with 6+ years building scalable Android & iOS apps in fintech, automotive/EV, and healthcare. I specialize in secure payments, BLE integrations, real-time systems, and performance optimization from architecture through production releases. Over my career, I’ve led mobile development for payment-enabled products, built wallet and authentication systems, delivered telemedicine and POS/crypto features, and contributed to backend services and cloud deployments. I’m focused on reliability, security, and delivering fast, stable apps in production.…I’m a Senior Flutter Engineer with 6+ years building scalable Android & iOS apps in fintech, automotive/EV, and healthcare. I specialize in secure payments, BLE integrations, real-time systems, and performance optimization from architecture through production releases. Over my career, I’ve led mobile development for payment-enabled products, built wallet and authentication systems, delivered telemedicine and POS/crypto features, and contributed to backend services and cloud deployments. I’m focused on reliability, security, and delivering fast, stable apps in production.

Available to hire

I’m a Senior Flutter Engineer with 6+ years building scalable Android & iOS apps in fintech, automotive/EV, and healthcare. I specialize in secure payments, BLE integrations, real-time systems, and performance optimization from architecture through production releases.

Over my career, I’ve led mobile development for payment-enabled products, built wallet and authentication systems, delivered telemedicine and POS/crypto features, and contributed to backend services and cloud deployments. I’m focused on reliability, security, and delivering fast, stable apps in production.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Intermediate

Urdu

Advanced

Work Experience

Senior Software Engineer at Coeus Solutions

October 1, 2023 - Present

Led Flutter development for automotive & EV charging applications. Integrated an Android-based payment SDK to support secure tokenized transactions, and built wallet systems with JWT authentication. Delivered real-time charging services and worked on performance improvements by optimizing memory usage, resulting in faster startup and reduced crashes.

Senior Mobile Application Developer at Magnatec Systems

October 1, 2021 - October 1, 2023

Built telemedicine apps including video consultation and patient records. Implemented scheduling, notifications, and secure medical storage. Improved application performance and overall system stability.

Lead Mobile Developer at Magus Global (Dubai)

October 1, 2021 - October 1, 2023

Delivered the Bond app from concept to production release. Designed reward systems and implemented real-time campaign features. Contributed to Node.js backend work and AWS cloud deployment, while focusing on performance optimization and managing production releases.

Mobile Application Developer at Maqware Solutions

August 1, 2019 - October 1, 2021

Developed POS, crypto wallet, and social/legal mobile apps. Integrated Ethereum APIs, payment gateways, and real-time services. Supported cross-platform deployments using Flutter and React Native with collaboration on mobile features and integrations.