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Hays

Mobile Developer (Android & IOS)

Remote

Toronto, Canada

Senior

Freelance

14-10-2025

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Skills

Java Swift Kotlin Xcode GraphQL CI/CD Version Control Agile methodologies git react Agile CI/CD Pipelines Android FireBase

Job Specifications

Job Title: Senior Mobile Developer (Android & iOS)

Location: Hybrid (2 days in a month)

Employment Type: Contract

Experience Level: 9+ Years

About the Role:

We are seeking a highly skilled and experienced Senior Mobile Developer with strong expertise in both Android and iOS platforms. The ideal candidate will have a passion for mobile technologies, a deep understanding of native development frameworks, and a proven track record of delivering high-quality mobile applications.

Key Responsibilities:

Design, develop, and maintain advanced mobile applications for Android and iOS.
Collaborate with cross-functional teams to define, design, and ship new features.
Ensure the performance, quality, and responsiveness of applications.
Identify and correct bottlenecks and fix bugs.
Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Write clean, maintainable, and scalable code following best practices.
Participate in code reviews and mentor junior developers.

Required Skills & Qualifications:

Bachelor's degree in Computer Science, Engineering, or related field.
9+ years of professional experience in mobile development.
Strong proficiency in Kotlin, Java, Swift, and Objective-C.
Experience with Android Studio, Xcode, and version control systems (Git).
Familiarity with RESTful APIs, GraphQL, and Firebase.
Solid understanding of UI/UX principles, MVVM/MVC architectures, and Agile methodologies.
Experience with CI/CD pipelines, unit testing, and automated testing frameworks.
Knowledge of Android 16 and iOS 16+ SDKs and their latest features.

Preferred Qualifications:

Experience with cross-platform frameworks like Flutter or React Native.
Exposure to App Store and Google Play deployment processes.
Familiarity with security best practices in mobile development.
Contributions to open-source projects or mobile development communities.

About the Company

We are leaders in specialist recruitment and workforce solutions, offering advisory services such as learning and skill development, career transitions and employer brand positioning. As the Leadership Partner to our customers, we invest in lifelong partnerships that empower people and businesses to succeed. We help you achieve your career goals and deliver your business needs by combining meaningful innovation with our global scale and insights. Last year we helped over 280,000 people find their next career. Join the mill... Know more