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I'm a senior software engineer with extensive experience building iOS and Flutter apps, fintech platforms, and cross-platform systems. Over the past decade I have led mobile squads, contributed across backend and blockchain components, and shipped features for high-traffic apps like Talabat, SadaPay, Careem Wallet, and emerging wallet ventures. I thrive on turning complex requirements into reliable, scalable products and enjoy shaping architecture, testing, and CI/CD practices while mentoring teammates. I’m passionate about building secure wallets, payments flows, and cross-platform experiences. When I’m not coding, I love exploring crypto topics, contributing to open source, and continuously learning new technologies to keep products fast, safe, and delightful for users.…I'm a senior software engineer with extensive experience building iOS and Flutter apps, fintech platforms, and cross-platform systems. Over the past decade I have led mobile squads, contributed across backend and blockchain components, and shipped features for high-traffic apps like Talabat, SadaPay, Careem Wallet, and emerging wallet ventures. I thrive on turning complex requirements into reliable, scalable products and enjoy shaping architecture, testing, and CI/CD practices while mentoring teammates. I’m passionate about building secure wallets, payments flows, and cross-platform experiences. When I’m not coding, I love exploring crypto topics, contributing to open source, and continuously learning new technologies to keep products fast, safe, and delightful for users.

Umair Ali

App Developer, Front-End Developer, Programmer, +3

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I'm a senior software engineer with extensive experience building iOS and Flutter apps, fintech platforms, and cross-platform systems. Over the past decade I have led mobile squads, contributed across backend and blockchain components, and shipped features for high-traffic apps like Talabat, SadaPay, Careem Wallet, and emerging wallet ventures. I thrive on turning complex requirements into reliable, scalable products and enjoy shaping architecture, testing, and CI/CD practices while mentoring teammates. I’m passionate about building secure wallets, payments flows, and cross-platform experiences. When I’m not coding, I love exploring crypto topics, contributing to open source, and continuously learning new technologies to keep products fast, safe, and delightful for users.…I'm a senior software engineer with extensive experience building iOS and Flutter apps, fintech platforms, and cross-platform systems. Over the past decade I have led mobile squads, contributed across backend and blockchain components, and shipped features for high-traffic apps like Talabat, SadaPay, Careem Wallet, and emerging wallet ventures. I thrive on turning complex requirements into reliable, scalable products and enjoy shaping architecture, testing, and CI/CD practices while mentoring teammates. I’m passionate about building secure wallets, payments flows, and cross-platform experiences. When I’m not coding, I love exploring crypto topics, contributing to open source, and continuously learning new technologies to keep products fast, safe, and delightful for users.

Available to hire

I’m a senior software engineer with extensive experience building iOS and Flutter apps, fintech platforms, and cross-platform systems. Over the past decade I have led mobile squads, contributed across backend and blockchain components, and shipped features for high-traffic apps like Talabat, SadaPay, Careem Wallet, and emerging wallet ventures. I thrive on turning complex requirements into reliable, scalable products and enjoy shaping architecture, testing, and CI/CD practices while mentoring teammates.

I’m passionate about building secure wallets, payments flows, and cross-platform experiences. When I’m not coding, I love exploring crypto topics, contributing to open source, and continuously learning new technologies to keep products fast, safe, and delightful for users.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Founding Engineer & User Squad Tech Lead at ZAR (Solana-powered self-custody wallet for emerging markets)

February 1, 2025 - Present

Founding engineer and User Squad Tech Lead (3–5 engineers) at a Solana-powered multi-sig self-custody digital dollar wallet. Owned all technical decisions for user-facing features including USD wallet, Visa debit card, bank transfers from 70+ countries, P2P transfers, and gold buy/sell. Led end-to-end development of the gold buy/sell feature and bank transfer features across Flutter and Ruby on Rails. Implemented feature-flagged mobile release with OTA updates and staged rollouts. Built a reusable onboarding and product-access system enabling new product onboarding with zero mobile changes, and a shared KYC framework across Visa card, bank transfers, and gold redemption. Set up CI/CD and release automation from scratch. Refactored the codebase into a modular architecture using Flutter best practices. The only Flutter-background engineer on the team, onboarded other engineers to the mobile stack. Set up observability dashboards for release health and performance.

Senior Software Engineer (iOS & Flutter) at Delivery Hero (Talabat)

February 1, 2023 - January 31, 2025

Migrated 3 core modules (user, location, home screen) from native iOS to Flutter as part of a cross-platform migration, serving 6.5M+ monthly active customers. Established observability dashboards and improved dine-out payment success rate from 87% to 97% by identifying edge cases via observability data. Contributed to backend in Java for payments, and championed TDD, pairing, and mobile development. Maintained 80%+ unit test coverage with XCTest and XCUI Test; set up end-to-end CI on Bitrise with SonarCloud and SwiftLint. Worked as a full-stack engineer across backend (Java) and Android (Kotlin) alongside iOS.

Senior iOS Engineer at SadaPay

December 1, 2020 - January 31, 2023

Early iOS engineer at Pakistan's first neo-bank building the iOS app from early stage to 6M+ downloads and $1.5B+ annual transaction volume. Led development of money transfer, KYC, and card-management features. Automated KYC approvals, slashing onboarding from 48 hours to minutes and reducing costs by 27%. Implemented MVVM architecture and a modular micro-app approach for independent squad development. Maintained 90%+ unit test coverage using XCTest and XCUITest; set up end-to-end CI on Bitrise with SwiftLint and observability integration. Contributed across stack as a full-stack engineer (backend Java, Android/Kotlin) alongside iOS.

Senior iOS Engineer at Careem (Careem Wallet)

December 1, 2019 - December 31, 2020

Joined the Careem Wallet team (48M+ users) and developed key features of the Careem Pay module including utility bill payments, mobile recharge, and P2P transfers. Helped increase unit test coverage from 0% to 60% with 90%+ module end-to-end UI testing. Contributed across the stack as a full-stack engineer (backend Java and Android) and supported iOS development.

iOS Developer at Various startups (Lahore, Pakistan)

August 1, 2015 - November 30, 2019

Built consumer iOS apps using protocol-oriented programming; worked with location services, Bluetooth, social login, and audio/video calling APls. Progressed across multiple companies in the Lahore tech ecosystem.

Founding Engineer and User Squad Tech Lead at ZAR

February 1, 2025 - Present

Leading the User Squad building a Solana-powered self-custody wallet and Visa cards for emerging markets. Full-stack contributor across mobile, backend, and blockchain. Led the gold buy/sell feature and bank transfers across Flutter and Ruby on Rails. Built a wallet onboarding flow, set up end-to-end testing and CI/CD, and established a reusable architecture shared across wallets and card programs. Onboarded a small team of engineers and coordinated across mobile and backend squads.

Senior iOS Engineer - Careem Wallet at Careem

December 1, 2019 - December 1, 2020

Joined the Careem Wallet team, delivering key wallet features and driving test coverage improvements. Helped increase unit test coverage from 0% to 60% and achieved 90%+ module-level end-to-end UI tests. Contributed to reducing support tickets from 120 to under 20 per month and enhanced wallet onboarding and transaction flows.

Senior iOS Engineer - SadaPay Wallet at SadaPay

December 1, 2020 - January 1, 2023

Joined the wallet squad and led iOS development for the SadaPay wallet, implementing payments features, e-receipts, and wallet flows. Increased test coverage with automated tests, contributed to KYC/card management features, and helped reduce support tickets while collaborating with cross-functional teams.