Top IoS Developer Jobs in Toronto

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.

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 technical direction and architecture for Neighborhoods mobile experiences across Cash App and Square. Drive cross-organizational mobile initiatives, stay hands-on in iOS development, partner with backend/web/Android teams, mentor engineers, and apply AI-assisted workflows to accelerate feature 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.

Lead technical direction and architecture for Neighborhoods mobile across Cash App and Square. Drive cross-organizational integration, remain hands-on in iOS development (SwiftUI, Workflow), apply AI-native engineering practices, mentor engineers, and collaborate with backend, web, Android, product, and design partners to deliver reliable, scalable mobile experiences.

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.

As a Senior iOS Developer, you will develop iOS applications, lead major product features, mentor developers, and ensure high-quality software through testing and code reviews.

As an iOS Developer, you'll develop consumer and enterprise applications, participate in code reviews, and engage in testing to ensure quality software delivery.

As a Senior iOS SDK Engineer, you will lead the development of Sentry's iOS SDK, innovating features and designing APIs while leveraging advanced Apple technologies and ensuring robust architecture for high scalability.

Build and maintain Pricelines iPhone and iPad apps using Swift/SwiftUI and Xcode. Implement features, ensure performance and stability, collaborate with product and design, apply modern concurrency and mobile architecture patterns, and mentor junior engineers.

Develop and maintain scalable Swift-based iOS applications used by millions of users. The role involves establishing architecture and technical roadmaps, writing tested and maintainable code, conducting code reviews, documenting designs, mentoring junior engineers, participating in hiring, and collaborating with designers and product managers.

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.

Lead design and delivery of production-grade iOS agent solutions. Implement agent workflows, integrations, CI/CD, testing, observability, and secure features. Provide technical leadership, mentor engineers, drive code quality, and ensure implementations meet business and regulatory requirements.

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.

The role involves leading engineering decisions, actively shipping code, participating in product discussions, and maintaining app architecture for Speechify's iOS app.

Design, build, and maintain high-performance modular features for eBay's core iOS app. Collaborate with product, design, backend and analytics teams, integrate APIs (including GraphQL), manage app state, ensure performance and stability, write tests, participate in Agile processes, and contribute to CI/CD and code reviews.

Lead design and implementation of eBay Live iOS features, translate requirements into maintainable code, mentor engineers, drive architecture and productivity improvements, own large functional areas, and collaborate cross-functionally to deliver scalable live-shopping experiences.

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.

Build and lead development of Pinner-facing iOS features from ideation through release. Collaborate with product, design, and backend teams, prototype and run A/B tests, architect scalable solutions, employ automated testing, and leverage AI to accelerate and improve engineering outputs while ensuring quality and verification of AI-assisted work.

Design and develop iOS applications for asset tracking, improve performance, and mentor engineers, while collaborating with cross-functional teams.

Build and improve the Onfleet driver iOS app and mobile SDK using modern Swift, unidirectional architectures, Swift concurrency, and Combine. Own features end-to-end, write tests, improve CI/CD and quality automation, refactor legacy code, collaborate with cross-functional teams, mentor engineers, and advance agentic AI-driven development workflows.

Lead and architect iOS product development: build and scale features, optimize performance and infrastructure, define APIs with backend teams, enforce engineering best practices, drive testing strategy, and use analytics to measure and improve product outcomes.

Develop innovative mobile solutions collaboratively with cross-functional teams, focusing on native iOS applications and user experience best practices.

Design and implement selling features for eBay's iOS app. Build native iOS production-ready code, apply modern design patterns, write unit and UI tests, collaborate with product and services teams, debug network issues, and iterate quickly within an Agile engineering team.

Design, implement, and release scalable iOS features and frameworks working with product, design, and backend teams. Prototype, run A/B tests, apply automated testing, and use AI responsibly to speed workflows while ensuring quality, data protection, and maintainability for millions of users.