Mobile Engineer 4 (iOS)

Mobile Engineer 4 (iOS) Do you love pioneering at the intersection of native mobile architecture and cutting-edge digital payments? Do you thrive when taking complete ownership of high-impact products in a fast-paced, collaborative, and iterative environment?  At Capital One, you'll join a dynamic group of makers, breakers, and disruptors building the next generation of mobile commerce. We are seeking an iOS Engineer who is passionate about leveraging modern Swift frameworks (SwiftUI/XCode), agentic AI workflows, and digital wallet integrations. In this role, you’ll lead technical intent, mentor growing talent, and shape how 100M+ customers interact with their money every single day. What You’ll Do:  • Partner with software engineers, designers, and product managers to deliver high-performing, quality features for 100M+ customers that are engaging, purposeful and powerful in their simplicity • Provide technical leadership for mobile architecture and design patterns, acting as a multiplier for your team's impact • Mentor other engineers, fostering their growth through thoughtful feedback, code reviews, and sharing of platform-specific best practices, while helping to identify and clear technical obstacles • Grow and provide subject matter expertise in key platform areas (e.g., performance, accessibility, architecture) • Contribute to mobile architecture decisions, API design reviews, and reusable component development • Lead the design and development of client Backend-for-Frontends (BFFs) and Server-Driven UI (SDUI) architectures to deliver scalable and flexible product experiences • Lead the implementation and refinement of well-managed engineering practices, defining best practices for feature flags and staged rollouts to improve product delivery and quality • Champion the adoption of agentic AI tools, mentoring engineers in AI-native development practices to increase team velocity • Apply mastery of the modern mobile ecosystem (including deep platform-specific capabilities and advanced UI patterns) to make complex, high-leverage, hands-on technical contributions • Drive a culture of quality, performance, accessibility, and customer empathy, establishing high standards for coding, testing, and user experience Basic Qualifications:  • Bachelor's Degree or higher in Computer Science or a related quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Engineering) • At least 4 years of professional software engineering experience (internship experience does not apply) • At least 3 years of experience building native mobile applications for Android (Kotlin) or iOS (Swift) Preferred Qualifications: • 4+ years of experience building native mobile applications for Android (Kotlin) or iOS (Swift) • Demonstrated experience with modern native UI frameworks (e.g., SwiftUI, Jetpack Compose) • Demonstrated experience designing and building automated testing suites for mobile (e.g., Swift Testing, XCUI, JUnit, Espresso) • Proven experience with performance tuning and optimization on native mobile platforms • Demonstrated experience designing scalable mobile architectures and reusable component libraries • Experience implementing and maintaining comprehensive automated testing • Demonstrated experience with modular architecture and modern state management patterns • Demonstrated experience designing and developing client Backend-for-Frontends (BFFs) to orchestrate data for mobile clients using technologies like GraphQL and efficient networking protocols (e.g., gRPC/Protobuf) • Demonstrated experience with Server-Driven UI (SDUI) architectures • Demonstrated experience in metrics-driven staged rollout and feature flag strategies • Expertise with agentic AI coding tools and AI-assisted w