Senior Developer

. As a Senior Mobile Developer, be a key technical contributor on mobile engineering teams .

Posted 5/23/2026full-timeToronto • 🇨🇦 CanadaSenior💰 CA$64,000 - CA$106,000 per yearWebsite

Tools & technologies

AndroidAzureCloudDartFlutteriOSKotlinSwift

Key responsibilities & impact

As a Senior Mobile Developer, be a key technical contributor on mobile engineering teams
Design, build, and evolve cross-platform mobile applications using Flutter
Work closely with product, UX, backend, and platform teams
Lead complex feature development from design through release
Ensure applications meet security, performance, reliability, and accessibility standards
Write and maintain unit, widget, and integration tests; participate in code reviews
Support CI/CD pipelines for mobile apps, including build, test, and release processes
Mentor junior and intermediate developers and contribute to mobile engineering best practices
Work within Agile delivery teams and continuously evaluate new tools, patterns, and technologies

What you’ll need

5+ years of professional software development experience with strong mobile development experience
2+ years of hands-on experience building production applications with Flutter and Dart
Solid understanding of mobile application architecture and common Flutter patterns
Experience with state management solutions (e.g., Bloc, Riverpod, Provider)
Strong experience consuming RESTful APIs and handling authentication, networking, and error handling
Experience with mobile testing strategies and automated tests
Proficiency with Git and modern CI/CD workflows
Strong problem-solving skills and ability to work in complex, evolving environments
Excellent communication skills and ability to collaborate with cross-functional teams
Experience with native Android (Kotlin) and/or iOS (Swift) is an asset
Experience working on customer-facing, high-traffic consumer applications is an asset
Familiarity with cloud platforms (Azure preferred) and modern backend architectures is an asset
Knowledge of accessibility standards (WCAG) as applied to mobile apps is an asset
Retail, e‑commerce, or loyalty/rewards domain experience is an asset
Experience working in large, enterprise technology environments is an asset

Comp & perks

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

FlutterDartmobile application architecturestate management solutionsRESTful APIsmobile testing strategiesGitCI/CD workflowsKotlinSwift

Soft Skills

problem-solvingcommunicationcollaborationmentoringleadership