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

Lead development of scalable React Native applications, mentor team, drive code quality and collaborate across departments, focusing on AI-assisted development.

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

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.

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

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.

Lead cross-team iOS engineering for Neighborhoods across Cash App and Square: define architecture, stay hands-on with SwiftUI/Workflow codebases, deliver integrated loyalty/ordering features, mentor engineers, and adopt AI-native workflows to accelerate development and quality.

Lead design and implementation of Neighborhoods mobile experiences across Cash App and Square. Shape cross-team architecture, stay hands-on with iOS development (SwiftUI, Workflow), drive integrations for discovery, ordering, loyalty, and fulfillment, mentor engineers, and apply AI-assisted workflows to accelerate development and quality.

Develop and maintain iOS applications, ensure performance, collaborate on features, mentor junior engineers, and implement CI/CD practices.

As a Lead iOS Engineer, you'll code, analyze systems, enhance an iOS SDK, mentor other developers, and ensure robust software practices.

Develop business applications for iOS using Objective C and Swift. Requires 5 years of experience and a BSCS degree.

Lead technical strategy for iOS platform, build key infrastructure, ensure engineering excellence, and mentor senior engineers.

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.

Design and build e-commerce iOS applications, integrate with back-end services, ensure performance and responsiveness, collaborate to define and ship features, identify and fix bugs and bottlenecks, maintain code quality and automation, and lead and mentor junior developers.

As a Staff Software Engineer (iOS), you will collaborate with teams to build mobile solutions for media manipulation, promote code quality, and shape the technical vision of VSCO's mobile platform.

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.

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.

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.

Founding iOS Engineer to build the app's core intelligence layer. Must implement production CallKit and on-device continuous Speech Framework recognition, integrate with SwiftUI/CoreData, and optionally add Dynamic Island Live Activity via WidgetKit. Equity-only founding role; product details under NDA.

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

Senior iOS developer to design and build maintainable, performant iOS apps using Swift/SwiftUI and modern concurrency. Build core UI infrastructure, write automated tests (XCTest/XCUITest), participate in code reviews, release apps to the App Store using CI/CD tooling, and partner cross-functionally to define mobile standards.

The role involves leading engineering decisions for the iOS app, shipping production code, enhancing app architecture, and engaging in product discussions.

The Senior iOS Engineer will lead product decisions, actively ship code, work within a product team, and enhance app architecture for Speechify's iOS app.