Top iOS Developer Jobs in Montreal

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 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.

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.

Lead development of complex features for Mistplay’s native iOS app, improving user engagement and experience. Collaborate with Product, Design, and Data teams; resolve performance issues; build intuitive interfaces with SwiftUI; write secure, maintainable code; participate in code reviews; and mentor junior developers. The role also supports testing, CI/CD, Agile development, backend integration, and API handling.

Lead front-end iOS development for CBC/Radio‑Canada's OTT product, design reusable components (audio/video player), ensure performance and quality, participate in Agile ceremonies, code reviews, deployments, and collaborate with product and architecture teams to deliver multi-form factor apps.

Develop payment solutions for Android and iOS, including an iOS Tap to Pay implementation using Apple APIs. Maintain existing applications, integrate NFC contactless payment flows with processor SDKs, ensure PCI DSS and Apple security compliance, and conduct unit, integration, and acceptance testing. Collaborate within an Agile team while applying software engineering, debugging, performance, security, Git, CI/CD, and mobile development practices.

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.

Own the React Native application end to end, including architecture, performance, releases, app-store presence, and roadmap. Lead and mentor two mobile engineers, establish technical direction, and collaborate on engineering and product strategy. Deliver polished iOS and Android experiences, run experiments, measure growth and retention impact, and iterate rapidly. The role may help expand the mobile team as the app grows.

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.

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.