Top Senior iOS Developer Jobs in San Francisco Bay Area, CA

Design and develop mobile applications as a Senior iOS Engineer, leading architectural decisions and collaborating with teams to create user-friendly products. Ensuring performance and quality through continuous improvement while mentoring others in the engineering team.

As a Senior iOS Engineer, you'll build reliable and secure mobile experiences for OpenAI's products, focusing on performance, testing frameworks, and cross-functional collaboration.

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

Design and build native iOS apps and SDKs, develop iOS frameworks and UIs, integrate RESTful APIs, follow CI and unit testing best practices, work in an agile scrum team, provide iOS subject-matter expertise, and execute POCs for mobile payment initiatives.

Lead design and development of Amplitude's core iOS SDKs (Analytics, Session Replay), set technical direction and cross-SDK architecture, improve performance, reliability, and developer experience, design stable public APIs and shared infrastructure, collaborate with Product and Support, and lead cross-team technical decisions, testing, documentation, and tooling.

Senior native mobile developer responsible for designing, building, publishing, and maintaining iOS and Android applications. Collaborate with cross-functional teams, implement performance optimizations, and own mobile app lifecycle from design through App Store/Play Store release.

Develop and maintain native iOS applications using Swift and Xcode; optimize performance; follow SDLC processes; collaborate with global teams and stakeholders; apply analytical skills and open-source practices.

Develop and maintain native iOS applications using Swift and Xcode, ensure performance management and follow SDLC practices, collaborate with global teams, and contribute to cross-functional development efforts.

Develop native iOS applications using Swift and Xcode, focusing on performance, following SDLC best practices, collaborating across global teams, and maintaining high code quality.

Lead native iOS UI development using Objective-C and Swift, optimize performance, fix bugs, use iOS frameworks (Core Data, Core Animation). Support hybrid apps (PhoneGap/Cordova) and responsive web (HTML5/CSS3/Bootstrap/Angular). Execute projects, mentor teams, produce thought leadership, training, knowledge artifacts, and assist in solution/IP creation. Role requires extensive travel.

Design, implement, test, and modernize iOS graphics systems for a rich canvas (ink, images, PDFs, text, animation). Optimize GPU-based 2D rendering to meet soft real-time targets, collaborate across engineering, design, and product, mentor peers, perform code reviews, and implement research-driven features.

Lead iOS application development, create innovative features, collaborate with cross-functional teams, and ensure high-quality standards in a supportive environment.

Lead technical strategy and architecture for core iOS frameworks, native video playback, and hybrid WebView integrations. Build WebView infrastructure and bridges, optimize performance at scale, develop automated testing and developer tooling, mentor iOS engineers, and drive cross-organizational architectural decisions to improve velocity and maintainability.

Lead ownership of the iOS platform: build offline-first apps with local persistence and sync, real-time communication, media capture/uploads, location/scheduling, and polished, accessible UI/UX for multiple user roles.

Lead design and development of high-performance, offline-capable iOS (iPad) and Android apps for mission-critical drone operations. Build real-time maps, video streaming, telemetry overlays; integrate with hardware; optimize battery, memory, and latency; implement offline-first sync; collaborate with backend/hardware teams; mentor engineers and establish CI/CD, testing, and security best practices.

Develop and launch iOS applications, collaborating with designers and contributing to the full development cycle while following best practices.

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.

Lead multi-platform Search product and front-end strategy across iOS, Android, and Web. Design and ship end-to-end search and shopping experiences, partner with product, design, ML, infra, and back-end teams, use AI/LLMs to prototype and iterate, define architecture and best practices, mentor engineers, and drive measurable improvements via experimentation and data.

The Senior iOS Developer will lead mobile engineering projects, troubleshoot production issues, and develop scalable applications using Objective-C, with a focus on customer experience and supporting business solutions.

Own and ship the Town iOS app end-to-end: architecture, performance, reliability, and UX. Build native mobile experiences that let users hand work to the assistant, optimize latency and security, and collaborate with product, design, and backend to deliver polished features.

As a Senior iOS Engineer, you'll enhance user experiences, lead product direction, maintain the design system, and mentor engineers.

The Senior iOS Software Engineer will develop high-quality features for the native iOS app, optimize performance, conduct code reviews, and collaborate extensively with cross-functional teams.

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.

Build and enhance native GFiber iOS app features using Swift and SwiftUI. Collaborate with product and design, implement modern concurrency patterns, maintain automated tests, mentor engineers, perform code reviews, and improve mobile architecture and CI/CD practices to deliver reliable customer experiences.