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Mobile Developer Jobs in Ontario (NOW HIRING)

Mercor

iOS Engineer - AI Model Evaluator

Toronto, ON · Remote

CA$85/hr

Position: iOS Engineer (Coding Agent Experience) Type: Contract Compensation: $85/hour Location ... Review model-generated mobile application code for correctness, quality, maintainability, and ...

fgf brands

Senior Mobile Application Developer We're a naan traditional company... Summary As a Senior Mobile Application Developer, you will lead the design, development, and deployment of cutting-edge mobile ...

Warnerbros

Senior Software Developer - iOS

Kanata, ON · On-site

The iOS Mobile Senior Engineer contributes to mobile strategy, architecture, best practices, and choice of tools and technology stack across iOS app platforms, supporting mobile backend APIs, mobile ...

fgf brands

Work closely with web/mobile developer, data scientists, and industry experts to implement AI-driven solutions * Ensure documentation, compliance, and security best practices are followed Required ...

Planitar

Embedded Vision Developer

Waterloo, ON · On-site

Youll work closely with system engineering, product design, mobile app team, and external vendors to design and deliver new and improved data capture capabilities for the Planix product family.

Planitar Inc

Embedded Vision Developer

Waterloo, ON · On-site

You'll work closely with system engineering, product design, mobile app team, and external vendors to design and deliver new and improved data capture capabilities for the Planix product family.

Lyft

iOS Tooling Engineer

Toronto, ON · On-site +1

Build out mobile specific AI agent workflows to enhance developer productivity, improve migration efficiency, and drive alignment across the codebase. * Maintain and update Xcode, iOS versions, and ...

Lyft

Senior iOS Tooling Engineer

Toronto, ON · On-site +1

Build out mobile specific AI agent workflows to enhance developer productivity, improve migration efficiency, and drive alignment across the codebase. * Maintain and update Xcode, iOS versions, and ...

Planitar

Embedded Vision Developer

Waterloo, ON · On-site

You'll work closely with system engineering, product design, mobile app team, and external vendors to design and deliver new and improved data capture capabilities for the Planix product family.

Roadpost

Product Manager, Mobile App

Toronto, ON · On-site

Partner with engineering, design, and product leaders to assess feasibility, manage dependencies, and deliver predictable launch timelines. Ensure alignment between mobile app capabilities and ...

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Mobile Developer information

How much do mobile developers make?

Mobile developers typically earn a median annual salary ranging from $70,000 to $120,000, depending on experience, location, and skill set. Those proficient in both iOS and Android development or with specialized skills in Swift or Kotlin tend to earn higher salaries. Entry-level positions may start lower, while senior developers with extensive experience or certifications can earn significantly more.

Is a mobile developer a good career?

A mobile developer is a viable career choice due to the high demand for mobile applications across industries. The role typically requires skills in programming languages like Swift or Kotlin and knowledge of app development environments, with opportunities for growth and competitive salaries. The field offers a dynamic work environment and the chance to work on innovative projects.

What is a mobile developer?

A mobile developer is involved in app development for smartphone and mobile applications. Your job duties include creating a detailed app development plan, writing source code, and testing finished builds. Exact responsibilities may vary depending on app type, platform, your company, and the industry. The career requires you have excellent communication skills, as you collaborate with a team of other developers on a daily basis. Most mobile developers have at least a bachelor’s degree in computer science.

What are the key skills and qualifications needed to thrive as a mobile developer, and why are they important?

To thrive as a Mobile Developer, you need strong programming skills in languages like Swift, Kotlin, or Java, along with experience in mobile app development frameworks and a relevant degree or equivalent experience. Familiarity with integrated development environments (IDEs) such as Android Studio or Xcode, and knowledge of version control systems like Git, are crucial, as are certifications in mobile platforms. Strong problem-solving, attention to detail, and effective teamwork set standout professionals apart in this field. These competencies ensure the development of high-quality, user-friendly mobile applications that meet client and market needs.

What is the difference between Mobile Developer vs Web Developer?

AspectMobile DeveloperWeb Developer
Required CredentialsTypically a degree in computer science or related field; proficiency in mobile SDKs (iOS, Android)Similar degrees; expertise in HTML, CSS, JavaScript, and web frameworks
Work EnvironmentDevelops apps for iOS and Android platforms, often using IDEs like Xcode or Android StudioBuilds websites and web applications, usually working with browsers and web servers
Employer & Industry UsageTech companies, startups, app development firmsBusinesses with online presence, digital agencies, e-commerce

Mobile Developers focus on creating applications for mobile devices using platform-specific tools, while Web Developers build websites and web apps accessible via browsers. Both roles require programming skills but differ in platforms and development environments.

What are some common challenges mobile developers face when working with cross-platform frameworks?

Mobile Developers often encounter challenges when using cross-platform frameworks such as React Native or Flutter, including managing platform-specific functionality and performance optimization. Ensuring a consistent user experience across iOS and Android devices can require additional testing and custom code. Additionally, keeping up with frequent framework updates and compatibility changes can be demanding. Effective collaboration with designers and backend teams is essential to address these challenges and deliver high-quality mobile applications.
More about Mobile Developer jobs
What are the most commonly searched types of Developer jobs in Ontario? The most popular types of Developer jobs in Ontario are:
What are popular job titles related to Mobile Developer jobs in Ontario? For Mobile Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Mobile Developer jobs in Ontario look for? The top searched job categories for Mobile Developer jobs in Ontario are:
What cities in Ontario are hiring for Mobile Developer jobs? Cities in Ontario with the most Mobile Developer job openings:
What are popular job titles related to Mobile Developer jobs in ON? For Mobile Developer jobs in ON, the most frequently searched job titles are:
Mobile Developer jobs near you
Infographic showing various Mobile Developer job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 14% Part Time, and 7% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution.

iOS Engineer - AI Model Evaluator

Mercor

Toronto, ON • Remote

CA$85/hr

Full-time

Re-posted 18 days ago

Job description

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: iOS Engineer (Coding Agent Experience)
Type: Contract
Compensation: $85/hour
Location: Remote

Role Responsibilities

  • Use frontier AI coding agents to complete and evaluate complex engineering tasks.
  • Review model-generated mobile application code for correctness, quality, maintainability, and performance.
  • Identify bugs, edge cases, and failure modes in model outputs.
  • Compare outputs from multiple frontier models and assess their strengths and weaknesses.
  • Apply professional engineering judgment to realistic mobile engineering scenarios.

Qualifications

Must-Have

  • 2+ years of professional iOS engineering experience.
  • Experience building and maintaining production iOS applications using Swift and modern iOS frameworks.
  • Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.
  • Ability to evaluate model-generated mobile implementations and architectural decisions.

Preferred

  • Experience shipping production mobile applications.

Compensation & Legal

  • $400 per accepted task
  • Typical tasks take approximately 2–3 hours after ramp-up.
  • Compensation is tied to accepted work.

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: support@mercor.com

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.