Ubair Hamid

|
Senior iOS Engineer
15
Years Experience
Requires US visa sponsorship
Senior iOS Engineer with extensive in experience designing and building scalable mobile applications. Strong expertise in Swift, SwiftUI, UIKit, architecture...

What I'm Looking For

I'm looking for a Senior or Staff iOS Engineer role where I can work on high-impact, user-facing products and contribute to architecture, system design, and technical direction. I'm especially interested in product-driven teams building scalable mobile applications with Swift, SwiftUI, and modern iOS technologies. I'm open to full-time, remote, hybrid, or relocation opportunities with strong engineering teams and meaningful technical challenges.

About

Principal-level iOS engineer with 15+ years of experience designing, architecting, and scaling high-performance mobile platforms across fintech, mobility, commerce, and gaming.

Delivered production software for products serving 50M+ customers across 70+ cities in 10 countries, leading architecture, platform modernization, engineering quality, and engineering productivity initiatives.

Experienced in building scalable consumer applications, Server-Driven UI platforms, Kotlin Multiplatform solutions, AI-assisted engineering workflows, and mentoring engineering teams in fast-paced product organizations.

Specializations:
iOS Architecture • SwiftUI • Performance Optimization • Kotlin Multiplatform • Mobile Platform Engineering • AI-Assisted Engineering

Career Highlights

Selected Achievements
• Delivered production software across the Careem Super App serving 50M+ customers across 70+ cities in 10 countries, supporting continuous production releases.
• Delivered customer-facing experiences across Careem Pay (Wallet, International Remittance, P2P, Bill Payments, Recharge and Onboarding), Careem Quik, Food and Platform Engineering.
• Improved engineering productivity through AI-assisted development workflows, automated testing, and modern Platform Engineering practices.
• Built mobile products reaching 30M+ global downloads, multiple #1 App Store rankings, and $1M/day revenue peaks.

Notable Projects

Careem Pay – Remittance & Wallet
Built and enhanced iOS experiences for international remittance, wallet, P2P transfers, bills, and recharges. Worked on scalable architecture, onboarding flows, payment integrations, and reliability improvements for a high-traffic fintech product used across multiple markets.

Careem Checkout – Quik & Food
Contributed to checkout experiences across Careem Quik and Food, including shared platform components and Kotlin Multiplatform integrations. Focused on modular architecture, maintainability, performance, and consistent user experience across products.

Network Visibility & Debugging Platform
Designed and implemented a reusable networking visibility/logging layer for Careem Pay to improve debugging and observability. Helped engineering teams diagnose API and integration issues faster and improve development efficiency.

Large-Scale Consumer Mobile Apps & Games
Built and maintained iOS and Android applications and games used by millions of users, including products with 5M+ downloads and significant daily active usage. Worked across architecture, performance optimization, feature development, releases, and platform integrations.

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About the Mobile Signal Talent Directory

The Mobile Signal Talent Directory helps iOS developers showcase their experience and connect with employers looking for iOS talent. Profiles include professional background, work authorization status, technical experience, career highlights, and links to portfolios, GitHub profiles, and App Store projects.
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