Prime Video is transforming how customers discover and experience entertainment. We are a premium streaming service offering an endless selection of movies, TV shows, sports, and more - all tailored to each customer's unique interests. Our vast library includes thousands of popular movies and TV series, critically-acclaimed Amazon Originals, exciting live sports, and exclusive content you won't find anywhere else. With Prime Video, customers can easily find their next favorite show, rent or buy new releases, or subscribe to premium add-on channels - all within a seamless, personalized experience. Prime Video is available globally in over 240 countries and territories, bringing the best of entertainment to customers worldwide. We are passionate storytellers committed to fostering connections between creators and audiences through unforgettable viewing experiences. The Prime Video Advertising team is at the forefront of revolutionizing the streaming advertising landscape. Our mission is to deliver ad tech solutions that power Prime Video's rapidly growing advertising business. We focus on a wide range of critical areas including ad ingestion, ad delivery, client-side ad experiences, machine learning-driven optimization, ad tracking, and audience measurement. We’re responsible for advertising across video-on-demand (VOD), live streaming, and display ads on Prime Video, delivering value to both advertisers and viewers worldwide. We are looking for a passionate and talented iOS Software Development Engineer who has experience building world-class mobile apps. You will be responsible for developing innovative advertising experiences on our iOS applications. Key job responsibilities **Core Development** * Design, develop, and maintain various ad formats including non-interruptive formats, pause ads, interactive video ads (IVA), and sponsorship experiences, ensuring seamless integration with existing video streaming functionality * Build responsive, performant, and visually compelling user interfaces using Swift and SwiftUI/UIKit * Collaborate with product managers, designers, and backend engineers to translate requirements into technical solutions for innovative ad experiences * Write clean, maintainable, and well-documented code following iOS development best practices and Prime Video's coding standards * Optimize ad loading and caching strategies to minimize impact on video playback performance **Quality & Performance** * Conduct thorough testing including unit tests, integration tests, and UI tests to ensure ad format reliability * Profile and optimize application performance, focusing on memory management, battery efficiency, and smooth animations * Debug complex issues across different iOS versions and device types * Monitor crash reports and performance metrics, proactively addressing issues in production **Collaboration & Innovation** * Partner with cross-functional teams including Devices, Prime Video Ads, and Amazon Ads teams to deliver integrated solutions * Participate in code reviews, providing constructive feedback to peers and incorporating feedback into your own work * Stay current with iOS platform updates, new frameworks, and industry trends in mobile advertising * Contribute to technical design discussions and architectural decisions for new ad products * Document technical specifications, implementation details, and best practices for the team **Operational Excellence** * Participate in on-call rotations to support production systems and resolve critical issues * Contribute to continuous improvement of development processes, tools, and infrastructure * Mentor junior developers and share knowledge through technical presentations and documentation * Support A/B testing and experimentation frameworks to validate new ad format effectiveness