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iOS developer with 11+ years of experience and 7 App Store releases, specializing in Swift/Objective-C and modern architectures like MVVM/MVP. I build secure, high-performance mobile apps using UIKit/SwiftUI, Combine/RxSwift, and enterprise-grade tooling. I’m also experienced with payments/fintech workflows, real-time systems, ARKit/RealityKit, BLE/WebSockets, accessibility, and analytics instrumentation—delivering polished, maintainable iOS products with strong CI/CD and Agile practices.…iOS developer with 11+ years of experience and 7 App Store releases, specializing in Swift/Objective-C and modern architectures like MVVM/MVP. I build secure, high-performance mobile apps using UIKit/SwiftUI, Combine/RxSwift, and enterprise-grade tooling. I’m also experienced with payments/fintech workflows, real-time systems, ARKit/RealityKit, BLE/WebSockets, accessibility, and analytics instrumentation—delivering polished, maintainable iOS products with strong CI/CD and Agile practices.

Hasan Zaidi

Developer, App Developer, Front-End Developer, +1

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iOS developer with 11+ years of experience and 7 App Store releases, specializing in Swift/Objective-C and modern architectures like MVVM/MVP. I build secure, high-performance mobile apps using UIKit/SwiftUI, Combine/RxSwift, and enterprise-grade tooling. I’m also experienced with payments/fintech workflows, real-time systems, ARKit/RealityKit, BLE/WebSockets, accessibility, and analytics instrumentation—delivering polished, maintainable iOS products with strong CI/CD and Agile practices.…iOS developer with 11+ years of experience and 7 App Store releases, specializing in Swift/Objective-C and modern architectures like MVVM/MVP. I build secure, high-performance mobile apps using UIKit/SwiftUI, Combine/RxSwift, and enterprise-grade tooling. I’m also experienced with payments/fintech workflows, real-time systems, ARKit/RealityKit, BLE/WebSockets, accessibility, and analytics instrumentation—delivering polished, maintainable iOS products with strong CI/CD and Agile practices.

Available to hire

iOS developer with 11+ years of experience and 7 App Store releases, specializing in Swift/Objective-C and modern architectures like MVVM/MVP. I build secure, high-performance mobile apps using UIKit/SwiftUI, Combine/RxSwift, and enterprise-grade tooling.

I’m also experienced with payments/fintech workflows, real-time systems, ARKit/RealityKit, BLE/WebSockets, accessibility, and analytics instrumentation—delivering polished, maintainable iOS products with strong CI/CD and Agile practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Language

Work Experience

Lead iOS Developer at PayPal

March 1, 2026 - Present

Developed and delivered 32+ production-ready pull requests in PayPal’s enterprise iOS monorepo. Worked on BNPL onboarding/checkout and post-purchase servicing features, including inline validation, full-screen error handling, payment authentication controls, and server-driven configuration. Resolved complex UI/business logic/transaction-processing defects across forms, modal interactions, loading states, and UX improvements. Implemented analytics instrumentation for screen tracking and product usage measurement. Refactored and exposed reusable Swift APIs across modules, supporting modular enterprise architecture and plan-aware payment UI behavior. Standardized components using the enterprise design system and reduced technical debt by consolidating error handling, improving test structures, and addressing static analysis findings. Collaborated across modules, participated in code reviews, CI, and Agile delivery.

Lead iOS Engineer at Ally Bank

February 1, 2024 - Present

Led the architecture and delivery of secure, scalable iOS banking apps using MVVM-C, SwiftUI, and Combine, ensuring fintech compliance. Implemented robust authentication (Keychain, LocalAuthentication), offline support, and real-time transaction flows. Built networking layers with URLSession, integrated AWS services for cloud-backed features, and mentored junior engineers while contributing to CI/CD improvements.

Senior iOS Engineer at Rivian

March 1, 2021 - January 1, 2024

Developed a secure, real-time iOS app for connected vehicles, integrating BLE, WebSockets, and biometric authentication. Built modular MVVM components with Combine, MapKit, and CoreBluetooth to support location-aware EV interactions and digital key functionality. Implemented secure REST/WebSocket communications, real-time telemetry, and cross-platform modules in React Native; leveraged AWS Amplify for auth and data sync.

Senior iOS Developer at Frontier Airlines

May 1, 2019 - February 1, 2021

Designed and developed scalable iOS apps for Frontier Airlines, enabling flight booking, real-time tracking, and account management. Used MVVM with Combine, REST APIs, CoreData for offline access, and push notifications. Focused on accessibility and performance and implemented deep linking.

Senior iOS Developer at Shopify

July 1, 2017 - April 1, 2019

Developed scalable e-commerce iOS apps with UIKit, MVVM, and Combine; integrated REST APIs, offline persistence with CoreData, push notifications, and cross-platform React Native modules. Emphasized accessibility and fast, reliable UX.

iOS Developer at McKesson Healthcare

March 1, 2016 - June 1, 2017

Developed patient-centric features using UIKit and HealthKit with MVVM; implemented secure login with Face ID/Touch ID and Keychain; offline data using CoreData; HealthKit integration; local notifications; HIPAA-focused design and accessibility.

iOS Developer at Target Corporation

January 1, 2015 - February 1, 2016

Built and maintained Target's native iOS app using Objective-C, MVC; integrated RESTful APIs with NSURLConnection/NSURLSession; Core Data offline; Auto Layout; Agile development.