Top iOS Developer Jobs in Philadelphia, PA

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.

Responsible for the development and maintenance of iOS applications, focusing on performance, user experience, and collaboration with design teams.

Lead the iOS application development, guide the team, ensure app performance and scalability, and collaborate on new features.

Design, build, and maintain an iOS app using Obj-C and Swift. Collaborate with teams, debug issues, and refine features.

As an iOS Engineer, you will develop and maintain features for the Oura app, collaborating with various teams to enhance user experience and code quality.

As a Senior iOS Developer, you'll release features weekly, collaborate closely with product and design, and improve systems for users.

As a Lead Mobile Developer, you will design and maintain iOS apps, mentor developers, optimize performance, and integrate with backend services while collaborating with cross-functional teams.

As a Senior iOS Engineer, you will lead the iOS development, establish the architecture, collaborate with stakeholders, and implement high standards in software design and performance.

As a Senior iOS Engineer at Speechify, you'll lead product decisions, ship production code, enhance app architecture, and focus on customer experience in a fast-paced startup environment.

As an iOS Engineer at Geo, you will develop user interfaces, own the app architecture, and write high-performance code.

Lead development of native iOS features (food tracking, activity logging, weight trends, AI-driven insights), deliver premium UI/UX with modern Apple frameworks, own flagship initiatives (Lock Screen Widgets, Live Activities, health data integrations), shape app architecture and standards, and collaborate cross-functionally while mentoring engineers.

Join a mobile team to build features for an iOS news app. Responsibilities include redesigning screens, integrating audio, and reviewing a Swift codebase.

Design, build, and maintain reusable iOS components and design-system features using Swift and SwiftUI. Ensure accessibility, performance, testing, and CI/CD practices; diagnose integration issues; create documentation and educational content; and collaborate with design, product, and engineering teams to improve developer and designer experience.

Senior iOS hybrid developer to build and maintain iOS apps with Swift/SwiftUI or UIKit and Xcode; implement WKWebView-based hybrid features, ASWebAuthenticationSession OAuth/Web SSO, and secure JavaScript integrations; integrate native capabilities (camera, media capture, push notifications, maps/location); ensure responsive web content and secure data handling.

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.

As a Senior iOS Engineer, you will develop and enhance key features of the WeightWatchers app, collaborate with cross-functional teams, and shape architectural decisions for the app. Responsibilities include building native features, delivering premium UI/UX, and integrating health data functionalities.

The Senior iOS Engineer will lead product decisions, ship code for the iOS app, and enhance the app's architecture, ensuring a user-centric experience.

Develop and maintain iOS applications, ensure performance optimization, collaborate with designers, write clean code, and integrate APIs.

The Senior iOS Engineer will drive key engineering decisions, enhance the iOS app, and engage in product strategy discussions. Responsibilities include shipping production code and maintaining app architecture.

As a Senior iOS SDK Engineer, you'll design, implement, and optimize core SDK features, maintain integrations with ad networks, and improve SDK usability by collaborating with publishers and product teams.

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

The Core iOS Senior Engineer will lead mobile development projects, troubleshoot issues, and contribute to code reviews, requiring strong experience in Objective-C and mobile software development.

As an iOS Software Engineer, you will develop and improve Nextdoor's iOS applications, collaborating with teams to enhance product features and usability while mentoring team members.

The Senior iOS SDK Engineer will design, build, and support SDKs for in-app subscriptions, focusing primarily on iOS while also engaging with Android and hybrid SDKs. Responsibilities include shipping high-quality products and collaborating effectively in a remote team.

The role involves designing, developing, and maintaining iOS applications, driving technical architecture, and promoting knowledge sharing within the team.