Umair Ali

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.

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.

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.