Top Senior iOS Engineer Jobs in NYC, NY

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

Build and ship native iOS features for onboarding, accounts, cards, payments, transfers, rewards and AI-assisted journeys. Improve performance, reliability and UX; integrate APIs and authentication; collaborate with product, design, backend and AI teams; own app quality and production issue debugging.

Build and ship end-to-end features for Augment’s iOS app, collaborate closely with product, design, backend, and fellow iOS engineers, and contribute to architecture, code quality, tooling, and long-term product health. The role emphasizes Swift and SwiftUI development, ownership, thoughtful collaboration, feedback, and effective use of AI-assisted development tools.

Develop and deliver native iOS features for MyFitnessPal’s Cal AI food-logging experience. Responsibilities include building interfaces in Swift, optimizing UI, storage, and network performance, implementing tests, researching technical solutions, collaborating with product and design teams, promoting engineering best practices, and mentoring junior developers.

Develop and lead frontend platform engineering for native and hybrid mobile applications. Build reusable, well-tested Android and iOS SDK components, contribute to architecture and system design, collaborate with product and engineering teams, own customer-facing deliverables, and identify product improvements while maintaining strong engineering standards.

Own and enhance the native iOS application by building polished, performant user interfaces, architecting scalable and maintainable code, writing unit and functional tests, resolving production issues, and improving existing systems. Collaborate closely with Design and Product teams to develop features, refine processes, and contribute to product decisions and technical improvements.

Own iOS technical direction for Everand and Scribd growth, retention, and monetization features. Build subscription, paywall, and in-app purchase flows using StoreKit; ship experiments; integrate APIs; improve stability and reduce technical debt. Collaborate with backend, web, and Android teams, lead technical initiatives, and mentor engineers while delivering scalable Swift applications.

Lead the architecture and development of Unity Ads’ iOS SDK. Design high-performance Swift components, ensure backward compatibility, collaborate with Android engineers, and own complex initiatives from design through rollout. Diagnose production issues involving lifecycle, concurrency, memory, networking, rendering, WebViews, and host-app integrations. Improve performance, reliability, crash rates, observability, and release safety while mentoring engineers and influencing technical direction.

Build and maintain native iOS applications for medical ultrasound imaging. Responsibilities include writing modern Swift code, evolving architecture, collaborating with product, design, clinical, hardware, cloud, AI, and imaging teams, developing tested user experiences, integrating device and advanced technologies, and mentoring engineers. The role involves SwiftUI, UIKit, reactive programming, GraphQL, deep learning applications, telemedicine, and complex internal Swift packages.

Lead iOS engineering for Compass’s mobile platform, independently defining and delivering complex projects from planning through release. Collaborate with Product, Design, and Engineering, guide architectural decisions, conduct code and design reviews, ensure testing and operational excellence, document systems, remove development bottlenecks, and mentor junior engineers. Build scalable production applications using modern Swift, SwiftUI, Swift Concurrency, RESTful services, and Apple deployment practices.

Build and scale customer-facing iOS marketplace experiences using Swift and SwiftUI. Implement feature-flagged functionality, write unit and UI tests, collaborate with Product, Design, Android, backend, QA, and senior iOS engineers, and take increasing ownership of reliability and operational health. Use AI tools for coding, refactoring, testing, debugging, documentation, and reducing repetitive work while critically validating generated outputs.

Build and scale customer-facing iOS applications for OPENLANE’s wholesale vehicle marketplace. Responsibilities include designing Swift and SwiftUI features, leading iOS architecture and UIKit modernization, improving testing and release practices, managing cross-cutting concerns such as authentication and analytics, using AI development tools, mentoring engineers, and collaborating with Product, Android, backend, platform, and QA teams.

Build and launch native iOS features in Swift for a consumer app, from concept through App Store release. Shape technical architecture, create polished interfaces, troubleshoot production issues, improve performance and stability, establish coding standards, and collaborate closely with leadership and cross-functional teams. The role requires product judgment, ownership, comfort with ambiguity, and practical use of AI development tools in a startup environment.

Build and evolve Medal’s iOS experience, including real-time recording, video clipping, social feeds, content discovery, and chat. Own projects end-to-end, shape mobile architecture and product direction, collaborate with backend teams, and use analytics, testing, user feedback, and crash data to improve quality. The role requires strong Swift, UIKit, SwiftUI, concurrency, Combine, REST API, and complex real-time or media application experience.

Drive projects that improve AI agent effectiveness across software development workflows. Build and maintain reliable developer tooling, iOS frameworks, libraries, build systems, and testing infrastructure. Collaborate with cross-functional partners to improve developer productivity, increase AI agent efficiency and reliability, and deliver roadmap initiatives across large-scale codebases.

Lead iOS platform initiatives that improve developer productivity and AI-agent effectiveness across software development workflows. Build and enhance frameworks, tooling, libraries, build systems, CI, and testing infrastructure for Airbnb’s large-scale Swift codebase. Collaborate cross-functionally to identify inefficiencies, drive roadmap projects, support migrations, and improve AI-agent execution time, token efficiency, reliability, and quality.

As an iOS Engineer on the Buyer Growth team, you will lead growth initiatives, develop features for our iOS app, and collaborate with various teams to improve user acquisition and retention.

Own and ship core parts of Citizen’s iOS safety app, including live video, real-time alerts, maps, paid experiences, operator tools, performance, reliability, instrumentation, and releases. Build in Swift using strict concurrency, TCA, and modular SPM architecture. Operate AI agents for coding, testing, review, and instrumentation while maintaining production quality. Participate in weekly release captain rotations, drive initiatives end to end, and collaborate with backend, design, product, data, and operations teams.

Build and maintain automated test frameworks and suites for native iOS and Android applications. Integrate mobile automation into CI/CD pipelines, execute tests across simulators, emulators, and physical devices, investigate failures, improve testability and coverage, and contribute to automation architecture and testing standards. Collaborate with Mobile Engineering, QA, and Product teams while using AI-assisted tools to improve development, debugging, analysis, documentation, and workflow efficiency.

As the lead iOS engineer, you'll own the mobile development lifecycle, collaborate with teams, build apps, and ensure secure data handling.

Design, build, and maintain high-quality iOS apps. Collaborate with PMs and designers, mentor engineers, and manage code ownership.

Build and ship native iOS features for a consumer fintech platform using Swift, UIKit, and scalable mobile frameworks. Own features from design handoff through launch, collaborate with product, design, and backend teams, participate in code and architecture reviews, and contribute to reusable platform components. The role emphasizes performant user experiences, secure financial applications, mentorship, and continuous engineering growth.

Build and improve scalable, accessible iOS experiences for Wikipedia. Lead technical discovery, system design, implementation, testing, observability, prioritization, and delivery of medium-complexity initiatives. Collaborate with product managers, designers, analysts, and engineers while managing scope, risks, tradeoffs, and documentation. The role requires strong Swift, SwiftUI, UIKit, iOS architecture, and performance optimization experience in an autonomous, remote, cross-functional environment.

The iOS Engineer will develop features for Bevel's iOS and watchOS apps, focusing on Swift code quality, collaborating with design, and optimizing performance.

As a Staff iOS Engineer, you will lead mobile app architecture, collaborate with teams, improve development practices, mentor engineers, and stay updated with industry trends.