Top Senior iOS Developer Jobs in Seattle, WA

The Staff iOS Engineer will lead mobile app design, define best practices, and deliver the first patient-facing mobile app, ensuring high-impact product development at Headway.

Develop cross-platform macOS/iOS applications for a cloud security platform, ensuring performance and quality, while collaborating with product managers and troubleshooting complex issues.

The Software Engineer, iOS will create high-performance mobile apps, design and implement software for Snapchat's camera, evaluate technical trade-offs, and ensure code quality through reviews. Candidates should have strong iOS development skills and experience with Objective-C and Swift.

The iOS Software Engineer will maintain the CI/CD pipeline and Bazel build system, improving mobile build scripts and collaborating with cross-functional teams to streamline development and increase efficiency.

The Senior iOS Engineer will develop core monetization experiences in OpenAI's mobile apps, focusing on user account management, payments, and system architecture while ensuring security and user trust.

Lead development of Aave's iOS app: build secure wallet and blockchain integrations, ship polished UIKit-based UI, optimize performance, collaborate with design and backend teams, and own large product areas end-to-end.

The Senior iOS Engineer will enhance the design system by building reusable iOS components, collaborating with cross-platform teams, and ensuring accessibility, performance, and documentation standards are met.

The iOS Engineer will build foundational Swift frameworks, enhance app performance and reliability, develop internal tooling, and collaborate with product engineering teams.

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.

The Senior iOS Engineer will enhance Babylist's app, collaborating on user experience, optimizing performance, and maintaining high coding standards.

The iOS Developer will focus on native iOS app development, requiring expertise in building customer-facing applications using Swift. Candidates must have a Computer Science degree and 8-10 years of experience.

Design, build, and maintain hybrid iOS and tvOS applications. Collaborate on features like video playback and streaming, ensuring app performance and quality.

Develop new mobile applications for iOS while collaborating with teams to integrate existing technologies. Lead projects while mentoring junior engineers.

This role involves developing mobile applications for iOS and Android, ensuring complete software development lifecycle adherence, and integrating with backend services.

The Senior iOS Engineer will lead key decisions, ship production code for the Speechify iOS app, and enhance existing app architecture while working closely with product teams and contributing to product discussions.

The Senior iOS Engineer will lead engineering and product decisions, ship production code for the Speechify iOS app, and enhance app architecture within a dedicated product team.

The Senior iOS Engineer will lead engineering decisions, ship production code for the iOS app, and participate in product discussions while maintaining complex app architecture.

As a Senior iOS Engineer, you will design, develop, and maintain the Poe iOS app, collaborating on AI-driven features and scalable architecture.

The Sr iOS Software Engineer will design and develop high-quality iOS applications, integrate AI features, mentor teams, and ensure quality through testing and best practices.

Design, build, and refine complex iOS applications and dynamic user interfaces. Contribute across the full software lifecycle, collaborate with mobile leadership, and shape mobile strategy and best practices.

Lead iOS development for MyFitnessPal's Premium subscription experience: design and implement features, improve subscription lifecycle via data, ensure testable, secure code, mentor engineers, and collaborate cross-functionally to deliver scalable solutions.

Build and enhance iOS applications using cutting-edge technology, collaborating with various teams to develop user-friendly mobile experiences and optimize app performance.

The Sr. Software Engineer will lead the migration of mobile platforms to a Flutter/Dart codebase while maintaining and enhancing the existing iOS application. Responsibilities include collaboration across teams, troubleshooting performance issues, and mentoring other engineers.

As a Senior iOS Mobile Developer, you'll implement features for mobile-native iOS applications, improve user experience, collaborate with UI teams, and participate in an agile development culture.

The Senior iOS Engineer will lead key engineering and product decisions, ship production code, and enhance existing app architecture while collaborating within a product team.