SOFTWARE ENGINEER III (iOS Engineer)
Walmart · Posted Oct 26
Retail, e-commerce, grocery, pharmacy, and membership warehouse services
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About the role
Sam's Club, a membership-based retail warehouse club owned and operated by Walmart, serves more than 50 million US members across 600+ clubs, and this team builds the e-commerce and in-club shopping experiences. The role sits within Walmart Global Tech and works closely with business, product, design, and backend engineering teams to define architecture and technology choices. The iOS engineer will develop, test, and deploy scalable iOS applications and help shape multi-channel shopping experiences.
What you will do
- Develop, test, and deploy high-quality iOS applications that scale to millions of members.
- Collaborate with product managers, designers, and backend engineers to deliver seamless mobile experiences.
- Drive technical discussions, provide recommendations on solution design, and ensure alignment with Walmart’s engineering standards.
- Write clean, modular, and testable code with a strong emphasis on maintainability and performance.
- Debug, troubleshoot, and optimize mobile applications to ensure robust and responsive user experiences.
- Participate in code reviews, mentor junior engineers, and contribute to continuous improvement of team practices.
- Support integration of mobile solutions with microservices, APIs, and backend systems.
Skills used in this role
What the employer is looking for
- Bachelor’s degree in computer science or related field with 3–6 years of mobile engineering experience, with at least 3 years focused on iOS application development.
- Expertise in developing iOS mobile apps using Swift and Objective-C, along with a strong understanding of mobile app design principles and user experience (UX) considerations.
- Deep knowledge of the iOS SDK, Apple's Human Interface Guidelines (HIG), Design and Architecture Patterns(MVC, MVVM, VIPER, Clean Architecture), and testing frameworks (XCTest, XCUITest).
- Proven experience collaborating with cross-functional teams — including product, design, and backend — to plan and deliver new features.
- Track record of ensuring performance, quality, and responsiveness of iOS applications across various Apple devices and OS versions.
- Knowledge on REST APIs and GraphQL for backend integrations — including a solid understanding of general best practices, limitations, and trade-offs of each approach.
- Experience with offline storage (Core Data, Realm, SwiftData), local caching, and asynchronous programming(async/await, Combine, GCD).
- Familiarity with push notifications and cloud messaging APIs (APNs — Apple Push Notification service, Firebase Cloud Messaging).
- Conducting thorough code reviews, maintaining code quality, and ensuring adherence to team coding standards and Apple platform conventions.
- Experience with CI/CD pipelines for iOS — including tools such as Git, Jenkins, GitHub Actions, Fastlane, and Xcode Cloud — for building, testing, and deploying applications.
- Familiarity with App Store Connect, TestFlight, and broader Apple Developer tools (Instruments, Xcode Organizer, Simulator).
- Solid understanding of mobile security practices, performance optimization, and memory management in iOS environments (ARC, retain cycles, profiling with Instruments).
- Knowledge of Swift Package Manager (SPM) and dependency management is a plus.
- A continuous learner with strong problem-solving skills, keen attention to detail, and a customer-first mindset.
- Good understanding of Swift Concurrency: : Deep understanding of Task, structured concurrency, actors, @MainActor, Sendable, cancellation, task priorities, and avoiding data races.
- Dependency framewrok evaluation: Evaluating internal SDKs for security, maintenance, licensing, performance, binary size, and long-term compatibility.
- Apple platform depth — background execution, deep/universal links, extensions/widgets, app lifecycle, signing/provisioning, and entitlements.
- Active participation in the full iOS development lifecycle — including sprint planning, feature development, testing, App Store submission, and production monitoring.
- Providing technical guidance and mentorship to fellow engineers on iOS best practices and Swift idioms.
- Strong communication and collaboration skills, with the ability to work effectively across cross-functional teams in a fast-paced environment.
Benefits and support
- incentive awards for your performance
- maternity and parental leave
- PTO
- health benefits
About Walmart
Walmart Inc. is an American multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores. As one of the world's largest companies by revenue, it serves millions of customers daily through physical stores and robust e-commerce platforms. The company is driven by a commitment to everyday low prices and an expanding suite of digital and convenience-focused services.
- Industry
- Retail
- Company size
- 2000000+ employees
- Founded
- 1962
- Location
- Bentonville, Arkansas, USA
- Funding stage
- Public Company
Leadership
President and CEO
Executive Vice President and Chief Financial Officer
Executive Vice President, Global Chief Technology Officer and Chief Development Officer
Executive Vice President and Chief Growth Officer
President and CEO, Walmart U.S.
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