Top Senior iOS Engineer Jobs in NYC, NY

Lead development of secure, high-quality iOS applications using SwiftUI; design, implement, test, and maintain production code; drive team adoption of enterprise AI-assisted engineering, automation, and resilient CI/CD practices; mentor engineers; evaluate vendors and integrations to improve operational stability and security.

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.

Develop and lead iOS software solutions using Swift, collaborate with engineering, UX/UI, quality, and product teams, and deliver high-quality mobile experiences. Participate in Agile ceremonies, advocate for mobile platforms, review code, resolve technical obstacles, improve engineering practices, and mentor junior and mid-level engineers. Own major platform components, engage across mobile and backend disciplines, and provide subject-matter-expert leadership for mobile development.

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

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.

The iOS Engineer will develop and scale a consumer app, design user experiences, improve app performance, and maintain code quality.

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.

The role involves developing a native iOS app, optimizing performance, maintaining high-quality code, and collaborating on product strategy.

Design, architect, implement, and optimize high-performance iOS camera features (primarily Objective-C). Develop and launch stable mobile features, collaborate with Design, perform code reviews, and leverage AI tools responsibly to accelerate development while ensuring performance, security, and production quality.

Design, implement, and optimize high-performance iOS features and apps using Objective-C and related technologies. Work with design teams, conduct code reviews, evaluate tradeoffs, leverage AI tools to accelerate development, and ensure performance, multithreading, and low-power optimizations for Snapchat's camera experiences.

Build and ship Swift-first iOS features that surface AI/LLM-driven conversational and context-aware experiences. Architect performant, privacy-conscious apps using modern concurrency, SwiftUI, networking (REST/WebSockets/streaming), offline storage, background tasks, and analytics-driven iteration. Collaborate with product, design, and backend teams and use AI-assisted development tools while maintaining high code quality and testing standards.

The Senior iOS Engineer will lead the iOS team, design and develop app features, ensure reliability, and collaborate across functions while navigating Apple ecosystem updates.

Develop and maintain iOS applications using Swift, SwiftUI, Objective-C, Xcode, persistent data stores, APIs, and established design patterns. Responsibilities include technical requirement review, application design, debugging, API integration, data management, documentation, unit testing, code reviews, and mentoring. The role requires independent ownership and collaboration with business and engineering teams. Beneficial experience includes Kotlin, payment gateways, ticketing and scanning SDKs, Bluetooth accessories, network protocols, and cloud technologies.

Lead design and delivery of iOS client solutions, collaborate with product, UX, QA and backend teams, participate in Agile ceremonies, mentor junior engineers, review code and enforce Swift best practices, own major components and platform needs, advocate mobile platform and improve cross-team processes.

Lead development of iOS client solutions, partner with cross-functional teams, participate in Agile delivery, mentor engineers, own major mobile components, review code, advocate mobile best practices, and stay current with mobile technologies.

Design, build, and maintain high-performance native iOS applications using Swift and SwiftUI/UIKit. Collaborate with product, design, and backend teams to implement features, write clean MVVM-based code, test and debug, integrate RESTful APIs, and optimize app performance for a flagship wealth-management mobile platform.

Lead architecture, build, test, and scale Gusto's iOS app and mobile infrastructure. Improve build pipelines, automated testing, release processes, and foundational services (push, accessibility, localization). Collaborate across product, design, security, and infrastructure teams; prototype, iterate, and launch customer-focused features while mentoring engineers.

Design, build, and maintain high-quality iOS applications for patient care. Lead architectural efforts, improve app performance, and mentor teammates.

Lead design and delivery of iOS client solutions, collaborate with cross-functional teams, mentor engineers, review code, drive platform initiatives, and advocate mobile best practices while ensuring high-quality Agile delivery.

Develop and maintain iOS applications across the full product lifecycle, including coding, testing, debugging, performance optimization, releases, and ongoing support. Collaborate with product and internal teams to plan features, improve user experience, maintain legacy applications, and ensure quality standards. The role requires Swift and Objective-C expertise, App Store publishing experience, and familiarity with APIs, analytics, WebRTC, and WebSocket technologies.

Lead development and delivery of iOS client solutions, collaborate with cross-functional teams, mentor junior engineers, own major platform components, ensure code quality and adherence to Swift idioms, and engage in mobile developer communities.

Collaborate with engineers and designers to develop and optimize Suno's iOS app, focusing on music playback features and UI components.

Join a fintech company as an iOS Engineer to enhance mobile products, collaborating cross-functionally and driving impactful features from design to launch.

As a Mobile iOS Developer Intern, you will develop and maintain the iOS app using AI-driven tools. Responsibilities include feature implementation, collaborating with teams, writing effective prompts, and enhancing user interfaces with AI.