Top Senior iOS Developer Jobs in NYC, NY

Develop and ship high-performance iOS applications and camera experiences for Snapchat. Responsibilities include designing and implementing tested Objective-C software, launching features, evaluating technical tradeoffs, collaborating with Design, conducting code reviews, and using AI tools while maintaining strong standards for correctness, security, performance, and scalability.

Lead mobile technical direction for trading tools while remaining hands-on with iOS development. Own scalable architecture for high-volume trading interfaces, real-time market data, charting, portfolios, and watchlists. Improve performance, observability, release stability, and cross-platform consistency across iOS and Android. Guide system design, AI integration, incident resolution, and technical planning while partnering with product and design teams. Mentor engineers and influence mobile platform strategy across the organization.

Build and maintain scalable iOS applications for crypto perpetuals trading. Design high-performance mobile experiences with real-time market data, charting, order entry, position management, and risk-aware workflows. Partner with product, design, backend, and data teams; improve performance, observability, reliability, and release stability; lead technical planning; resolve incidents; mentor engineers; and establish architecture, testing, documentation, and engineering standards.

Develop secure native iOS applications for identity and access management products. Build intuitive interfaces using SwiftUI, UIKit, and Storyboards; apply scalable architecture and concurrency patterns; and collaborate with engineers and security experts. Responsibilities include implementing mobile security features, secure networking, cryptography, release pipelines, performance optimization, and app hardening while taking ownership of complex technical challenges.

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.

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.

Design, build, and maintain scalable, high-performance iOS applications using Swift. Deliver end-to-end features, integrate with back-end services, implement animations and Auto Layout, ensure test coverage and CI/CD, profile and optimize performance, and mentor team members.

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.

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 ship native iOS features in Swift, manage EAS builds and App Store submissions, and contribute to React Native and TypeScript code when needed. Work within Supabase and related backend systems, submit reviewed GitHub pull requests, debug test-user feedback, identify launch requirements, and communicate progress and blockers independently. This is project-based, part-time work reporting directly to the founder.

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 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.

Own the iOS mobile roadmap and technical strategy for Superhuman Mail. Lead high-impact, cross-team engineering initiatives; define the mobile platform’s architecture, technical foundations, and one-to-two-year investment roadmap. Partner with product and engineering leadership on strategy and execution, mentor senior engineers, drive cross-functional alignment, and improve team delivery through AI-native development practices while maintaining high-quality user experiences.

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

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.

Lead iOS development for Thunderbird: design and improve mobile architecture, optimize performance and security, debug and test across unit/integration/automation, review and document technical decisions, own projects end-to-end, and collaborate with product, UX, and open-source contributors to deliver a scalable, accessible, and maintainable iOS app.

Lead design and development of Thunderbird's iOS app, improving architecture, performance, reliability, security, and accessibility. Own projects end-to-end, debug and test at unit/integration/automated levels, review code, mentor contributors, and document technical decisions while collaborating with product, UX, and open-source community.

Own and enhance the native iOS application by building polished, performant features; architect scalable and maintainable code; write unit and functional tests; debug production issues; collaborate with Design and Product; contribute to product decisions; refactor code; and improve engineering processes. The role requires strong native iOS and Swift experience, with GraphQL, SwiftUI, and Combine preferred.

Develop and maintain native iOS applications using Swift, focusing on performance, scalability, usability, and robust architecture. Partner with product, design, and engineering teams on planning and delivery; troubleshoot complex issues; write tests; maintain CI/CD workflows; and improve code quality. The role includes technical leadership, mentoring junior engineers, documentation, code reviews, and staying current with iOS technologies and development practices.

Develop and maintain native iOS, tvOS, and visionOS applications for ABC News across Apple devices. Build high-quality, performant features, integrate backend and third-party services, resolve production issues, and guide full application lifecycles. Lead feature ownership, improve team processes, mentor engineers, conduct code reviews, collaborate with stakeholders, and promote sustainable architecture and continuous learning.

Develop native iOS, tvOS, and visionOS applications for ABC News products used by millions. Build tested, performant features; integrate backend systems and services; resolve production issues; guide agile development; own feature delivery; and mentor engineers through code reviews and pair programming. Collaborate with technical and non-technical stakeholders to create sustainable solutions and improve team processes.

Design, develop, test, and maintain high-quality iOS applications using Swift and Apple frameworks. Responsibilities include building mobile interfaces, integrating REST APIs and backend services, writing unit and UI tests, debugging performance issues, participating in code reviews, optimizing stability and security, supporting releases, and ensuring compliance with Apple design and App Store requirements.

Lead hands-on development of user-facing Android and iOS applications, taking ownership from design through production release. Build maintainable, well-tested features, optimize performance, debug unfamiliar systems, and manage app-store publishing. Collaborate with product, design, backend, and users in an agile, remote environment. Use AI coding agents responsibly to accelerate implementation, testing, reviews, infrastructure work, and incident investigation.