iOS Developer

Job Description
iOS Developer - Walmart
Location: Sunnyvale, CA (Hybrid/Onsite)
Job Summary:
iOS Developer to design, develop, and maintain scalable, high-performance native iOS applications that deliver exceptional shopping experiences to millions of customers. The ideal candidate has strong expertise in Swift, modern iOS frameworks, and mobile architecture, with a passion for building intuitive, reliable, and secure mobile applications.
Responsibilities:

• Design, develop, test, and maintain native iOS applications using Swift and SwiftUI.
• Build scalable and maintainable applications following MVVM, Clean Architecture, and SOLID principles.
• Develop modern, responsive user interfaces using SwiftUI and UIKit.
• Integrate RESTful APIs, GraphQL services, and third-party SDKs.
• Collaborate with Product Managers, UX Designers, Backend Engineers, QA, and DevOps teams to deliver high-quality features.
• Optimize application performance, memory management, startup time, and battery efficiency.
• Write unit tests and UI tests to ensure code quality and application stability.
• Troubleshoot production issues and implement performance and reliability improvements.
• Follow secure coding practices and ensure compliance with enterprise security standards.
• Participate in Agile/Scrum ceremonies, sprint planning, code reviews, and release management.
• Contribute to CI/CD pipelines and App Store release processes.

Required Skills:

• Bachelor's or Master's degree in Computer Science or a related field.
• 5+ years of experience in native iOS application development.
• Strong proficiency in Swift and experience with Objective-C.
• Hands-on experience with SwiftUI, UIKit, and the iOS SDK.
• Strong understanding of MVVM, Clean Architecture, dependency injection, and design patterns.
• Experience with Combine, Swift Concurrency (async/await), and Grand Central Dispatch (GCD).
• Experience integrating REST APIs, GraphQL, and JSON-based services.
• Knowledge of Core Data, SQLite, or other local persistence frameworks.
• Experience with APNs, push notifications, deep linking, and universal links.
• Strong knowledge of Git and version control workflows.
• Experience with unit testing using XCTest and UI automation using XCUITest.
• Excellent debugging and performance optimization skills.

Preferred Skills:

• Experience with GraphQL (Apollo iOS).
• Experience with Firebase (Analytics, Crashlytics, Cloud Messaging).
• Knowledge of Kotlin Multiplatform (KMP) or React Native.
• Experience with cloud platforms such as Google Cloud Platform, AWS, or Azure.
• Familiarity with CI/CD tools such as GitHub Actions, Jenkins, Bitrise, or Fastlane.
• Experience working on enterprise-scale applications serving millions of users.
• Knowledge of mobile security, accessibility (WCAG), and App Store deployment best practices.

Technologies & Tools

• Swift, Objective-C
• SwiftUI, UIKit
• iOS SDK
• MVVM, Clean Architecture
• Combine, Swift Concurrency (async/await), GCD
• REST APIs, GraphQL (Apollo iOS)
• Core Data, SQLite
• Firebase (Crashlytics, Analytics, FCM)
• XCTest, XCUITest
• Git, GitHub
• Fastlane, Jenkins, GitHub Actions, Bitrise
• Xcode
• Jira, Confluence