Top IoS Developer Jobs in Toronto

Lead the development of foundational iOS platform systems, shared frameworks, developer tools, architecture standards, and multi-quarter migrations across Cash App and Square. Drive performance, reliability, security, testing, observability, release safety, and AI-assisted development practices. This hands-on individual contributor role influences multiple teams, develops technical leaders, and partners broadly to improve iOS engineering quality, productivity, and product outcomes.

Lead the architecture and evolution of native iOS foundations supporting seller-facing applications. Identify systemic problems, define platform strategy and standards, build prototypes and reference implementations, lead multi-quarter migrations, and establish practices for quality, testing, observability, release safety, and maintainability. Develop senior engineers and create scalable ownership models across teams.

Build and maintain iOS features for international Brokerage, Money, and Crypto products, including equities trading, account management, and onboarding. Collaborate with product, design, backend, compliance, and operations teams. Improve performance, testing, observability, release processes, and scalable mobile architecture while contributing to code reviews, documentation, and technical design discussions.

Develop and maintain iOS, tvOS, and visionOS streaming applications using Swift and SwiftUI. Design scalable, testable architectures, integrate RESTful backend services, optimize audio/video playback and buffering, analyze performance, and collaborate cross-functionally on new features. Participate in code reviews, estimation, troubleshooting, automated testing, and applying AI-assisted development tools to improve productivity and code quality.

Develop and maintain native iPhone and iPad applications for hotel, rental car, and air travel bookings. Build innovative features using Swift, SwiftUI, Xcode, and the latest iOS SDK. Collaborate with product managers, developers, and UI/UX specialists to deliver fast, stable mobile experiences. Apply modern concurrency, architecture, persistence, dependency management, testing, and computer science principles. Mentor junior developers and potentially contribute to Android initiatives.

Build and enhance native iPhone and iPad applications for travel bookings using Swift, SwiftUI, Xcode, and core iOS technologies. Develop innovative features, create stable and efficient mobile architecture, collaborate with product and UX teams, apply testing and concurrency best practices, and mentor less experienced developers. The role uses a hybrid work model with two in-office days per week.

Lead delivery of major iOS platform components, provide hands-on technical design and architecture, and contribute throughout the software development lifecycle. Design, develop, test, implement, and support technical solutions while improving engineering practices. Mentor mobile associates and advise technical and business stakeholders on evolving technologies. The role requires advanced Native iOS development using Swift and SwiftUI, application architecture, and agile collaboration.

Lead delivery of major iOS software components and platform capabilities, collaborating with engineers and architects. Design, develop, test, implement, and support technical solutions throughout the software development lifecycle. Improve engineering practices, contribute technical and architectural expertise, and mentor junior, intermediate, and senior mobile engineers. The role requires advanced hands-on development using native iOS technologies, Swift, and SwiftUI, with exposure to cloud and agile environments.

Lead the architecture, development, performance, release process, and roadmap for SimpleStudy’s consumer iOS app. Mentor existing mobile engineers, establish technical direction, deliver polished native experiences, run experimentation and analytics, manage App Store operations, and collaborate with engineering and product leadership. The role involves Swift, SwiftUI, UIKit, testing, performance optimization, crash monitoring, and potential mobile team expansion.

Design, develop, and maintain Thunderbird's iOS app with a focus on performance, reliability, security, accessibility, and scalability. Own projects end-to-end, debug and test across unit/integration/automation, review code, reduce technical debt, document architecture, and collaborate with product, UX, and the open-source community.

Build and launch iOS and watchOS features used by millions of customers. Responsibilities include developing stable mobile products with Swift, owning features end to end, incorporating design feedback, and collaborating with designers, product managers, backend developers, and data developers. The role uses UIKit, Auto Layout, RxSwift, Core Graphics, Core Animation, Lottie, Core Data, and VIPER-esque architecture.

Develop and maintain native iOS applications using Swift, focusing on performance, scalability, usability, and robust architecture. Partner with product, design, and engineering teams on planning and delivery; troubleshoot complex issues; write tests; maintain CI/CD workflows; and improve code quality. The role includes technical leadership, mentoring junior engineers, documentation, code reviews, and staying current with iOS technologies and development practices.

Own the iOS mobile roadmap and technical strategy for Superhuman Mail. Lead high-impact, complex engineering initiatives; define the mobile platform’s architecture, technical foundations, and one-to-two-year vision; partner with product and engineering leadership on strategy and execution; mentor senior engineers; drive cross-functional alignment; and promote AI-native software development practices while delivering reliable, high-quality mobile experiences.

Design, build, and maintain high-quality iOS applications using Swift (and Kotlin where applicable). Collaborate with cross-functional teams to implement features, optimize performance, fix bugs, integrate with GraphQL APIs, write tests, participate in code reviews, and produce technical documentation while partnering with UX/UI designers.

Develop and architect scalable iOS applications for millions of users. Collaborate with Product, Design, and Engineering teams to deliver features, promote clean architecture and iOS best practices, monitor performance and crash analytics, and support technical excellence through testing, code reviews, and maintainable code.

As a Staff iOS Engineer, you will develop and enhance key iOS app features, collaborate with cross-functional teams, and shape technical standards.

Build and ship full-stack and iOS features, product improvements, and bug fixes. Own small-to-medium projects through planning, implementation, testing, release, and post-launch support. Write maintainable, well-tested code, participate in code reviews, document work, investigate customer issues, and collaborate with support and cross-functional partners. The role is remote within Canada or the United States.

Build and ship native iOS and Android features for Cohere’s secure AI workspace platform. Collaborate with designers and researchers to implement interfaces, productionize AI models, research technologies, and develop privacy- and security-focused tooling, including custom solutions when standard libraries are unsuitable. The role requires experience with Kotlin and Swift, production mobile applications, project bootstrapping, cross-codebase debugging, and execution in fast-changing environments. Audio feature experience is a bonus.

Develop iOS applications for consumer and enterprise clients using Swift. Responsibilities include writing maintainable and performant software, code reviews, extensive testing, researching development tools, collaborating with team members, and improving workflows. The role requires knowledge of mobile application architecture, UI frameworks, REST APIs, server-side integration, and common architectural patterns such as MVVM, MVP, and MVC.

Develop iOS applications for consumer and enterprise products using Swift, UIKit, and SwiftUI. Lead major feature development, collaborate with designers and cross-platform developers, mentor teammates, participate in code reviews, conduct testing, research technologies, and improve development workflows. The role requires strong mobile architecture, API integration, accessibility, testing, and software engineering knowledge.

Develop and maintain high-quality iOS applications, focusing on performance, scalability, and user experience while collaborating with cross-functional teams.

As a Senior iOS Engineer, you will develop and maintain high-quality iOS apps, optimize user experiences, collaborate with teams, implement CI/CD pipelines, and mentor junior 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.

Lead architecture and development of Credit Genie’s iOS apps using Swift (Swift 6). Implement UX from design mocks, collaborate with product/marketing/engineering, improve development practices, mentor engineers, contribute across the development lifecycle, and evaluate emerging technologies to scale the app.

Contract iOS Developer to build and maintain iOS front-end and mobile features, work on web application integration using AngularJS/Backbone, and consume web services (REST, JAX-RS, XML-RPC, JSON-RPC, SOAP). Requires strong OO analysis, design, implementation and maintenance skills. 6-12 month contract in Toronto.