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Software Engineer, iOS

ESU - Excellent Sources Unlimited · Englewood Cliffs, NJ

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Key Responsibilities:Architect and implement cutting-edge iOS applications.Drive improvements across app performance, architecture, test coverage, tooling, and reliability.Champion best practices in mobile development.Own components end-to-end — design, implementation, testing, launch, and iteration.Integrate with backend and AI systems to deliver seamless mobile experiences.Bring an obsessive attention to detail and to the overall app experience.Contribute to backend systems as needed.Minimum Qualifications:Deep experience in iOS development (Swift/Objective-C), including frameworks such as UIKit/SwiftUI and Core Data, plus performance optimization.A passion for creating intuitive, performant, and delightful mobile experiences.A track record of thriving in fast-paced, collaborative environments and working closely with cross-functional partners and teammates.Strong communication and leadership skills.A drive to go above and beyond to ship great work.Preferred Qualifications:0-to-1 experience building successful products in early-stage environments.Experience building applications that use modern ML/AI technology.Familiarity with AI coding tools (e.g., Claude Code, Codex, Cursor) and their best practices.Experience with 3D graphics, visual effects, and audio/video streaming on mobile.