Senior iOS Developer

Senior iOS Developer

Sunnyvale, CA

Long term

About Our Team: Our team works closely with our US stores and eCommerce business to better serve customers by empowering team members, stores, and merchants with technological innovation. From groceries and entertainment to sporting goods and crafts, Walmart U.S. offers an extensive selection that our customers value, whether they shop online at Walmart.com, through one of our Mobile Apps, or in-store. Focus areas include our Customers, Stores and Employees, In-Store Services, eCommerce, Merchant Tools and, Data Science, and all general aspects of Walmart eCommerce.

What You'll Do:

• Build, and maintain engaging and high-performant apps for our customers at a very high scale.
• Produce robust, maintainable, highly tested, reusable code for developing functionality, configuration, improved performance, scalability, availability, security, monitoring and alerting for software test, integration, and production environments.
• Plan and implement a series of steps which potentially include reconfiguration, integration, removal, or addition of application components to enhance the application's functionality, resiliency, usability, and security.
• Understand the Business/Stakeholder/Technical requirements and assist in analyzing the existing solutions to address the needs. Assist in creation of simple, modular, extensible functional design for the product/solution in adherence to the requirements.
• Assess gaps, updates, and modifications between the customer, business expectations, and the existing product/solutions.

• Analyze defects from past projects and solutions to avoid recurrence of similar defects.
• Analyze system performance impacting the complete product for non-functional requirements such as reliability, operability, performance efficiency, and security.
• Troubleshoot performance and availability bottlenecks within the application.
• Develop, maintain, and enhance automated test cases and deployment procedures.
• Developed by the teams and contribute towards their continuous improvement.

What you'll bring:

• Solid and varied understanding of iOS framework components and their respective lifecycles, combined with a strong grasp of software engineering fundamentals, including application lifecycles, run loops, memory management, multithreading, networking, remote and local storage, security best practices, performance tuning, and more.
• Expert understanding of UIKit and its many quirks. SwiftUI is a plus!
• Experience building Frameworks or SDKs.
• Experience working with GraphQL / Apollo.
• Experience in developing content rich applications which include custom interactions, animations, and transitions.
• Skill in developing clean and reliable App and Systems architectures.
• Ability to build product requirements with a focus on testability, software quality, and overall engineering / operational excellence.

• Experience with code repositories and version control practices.
• Experience with CI/CD pipelines and best practices. Automated deployment and general scripting experience is a plus.
• Excellent communication skills, able to articulate complex ideas or opinions without hesitation and navigate multi-team interactions with diplomacy.
• Experience in agile development methodology.