Markham, On Senior mobile application developer Jobs – 71 Openings This Week

Senior Software Engineer, Growth
Tubi - Canada —Toronto, ON
- $137,200–$196,000 a year
- Full-time
- Hybrid work
- Master's degree
- Bachelor's
- JavaScript
- Paid time off
Quick apply
Associate Principal - Business Analysis
LTM —Toronto, ON
- $122,545–$134,161 a year
- Computer science
- Computer Science
- Engineering
- Disability insurance
- Dental care
Quick apply
Senior Software Engineer
Jobber —Toronto, ON
- $125,800–$170,100 a year
- Full-time
- Hybrid work
- AWS
- JavaScript
- Software development
Senior iOS Engineer
LTM —Toronto, ON
- $87,896–$93,824 a year
- Computer Science
- Engineering
- APIs
- Disability insurance
- Dental care
Quick apply
Director, Mortgage Fulfillment
Neo Financial —Toronto, ON
- $100,000–$130,000 a year
- Full-time
- Leadership
- Paid time off
- Life insurance
Quick apply
Software Developer (Contract)
Cyber-Infomax Solutions Inc. —Toronto, ON
- $70–$95 an hour
- Temporary
- Hybrid work
- Oracle
- English
- AWS
Quick apply
14d
Senior Web Developer
Pala Interactive —Toronto, ON
- $100,000–$120,000 a year
- Full-time
- Hybrid work
- Java
- Analysis skills
- JavaScript
- Disability insurance
- Dental care
Quick apply
Automation QA Lead
Kumaran Systems —Toronto, ON
- Full-time
- Azure
- DevOps
- Java
Design Engineer - Canada
Ashby —Toronto, ON
- $121,000–$248,000 a year
- Full-time
- Remote
- APIs
- Paid time off
Sr Software Engineer, Games
Big Viking Games —Toronto, ON
- $95,000–$132,000 a year
- Full-time
- Remote
- Computer Science
- Engineering
- SQL
- Dental care
- Paid time off
Quick apply
Sr. UX/UI Designer
Knix —Toronto, ON
- From $115,000 a year
- Full-time
- Hybrid work
- Research
- Presentation skills
- Communication skills
- Dental care
- Employee assistance program
Quick apply
Staff Software Engineer
Jobber —Toronto, ON
- $169,200–$228,900 a year
- Full-time
- Hybrid work
- AWS
- APIs
- Leadership
- Work from home
9d
Senior Software Engineer, Fullstack (Card Acquisition)
Affirm —Toronto, ON
- $153,000–$213,000 a year
- On call
- Remote
- AWS
- Bachelor's
- JavaScript
- Employee stock purchase plan
- Dental care
18h
Frontend UI Web/App Developer
Jeavensoft —Toronto, ON
- Overtime
- Computer science
- Computer Science
- Customer service
Staff Software Engineer – Backend (Typescript / .Nodejs / AWS )
Varicent —Toronto, ON
- $121,000–$159,000 a year
- Remote
- DevOps
- System design
- AWS
- Dental care
- Tuition reimbursement
Quick apply
13d
Lead Game Designer
Tripledot Studios —Markham, ON
- $80,000–$110,000 a year
- Hybrid work
- AI
- Dental care
- Employee assistance program
Senior iOS Tooling Engineer
Lyft —Toronto, ON
- $136,000–$170,000 a year
- Hybrid work
- Project management
- In-person
- AI
- Commuter benefits
- Dental care
Principal Android Engineer
Rakuten —Toronto, ON
- Full-time
- Computer Science
- Engineering
- Java
Principal Android Engineer
Rakuten Global —Toronto, ON
- Full-time
- Computer Science
- Engineering
- Java

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Senior Web Developer
Pala Interactive —Toronto, ON
Pala Interactive Canada Inc., operating as Boyd Interactive, is a full service real-money and social gaming technology provider and operator which caters to…
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Quick apply
Automation QA Lead
Kumaran Systems —Toronto, ON
Champion the use of GitHub Copilot for accelerating test automation development (e.g., test scripts, test data generation, utilities).

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senior mobile application developer jobs near markham, on

Senior Software Engineer, Growth

Tubi - Canada
Toronto, ON

Quick apply

Job details

Full-time
$137,200–$196,000 a year

Qualifications

Node.js
CSS
React
Master's degree
Bachelor's
JavaScript
Terraform
Usability
Redux
GitHub
APIs
Front-end development
AI
TypeScript
HTML

Full job description

About the Role:

The team is responsible for building and optimizing the UI/UX across all Web and OTT applications at Tubi. The team primarily focuses on implementing features related to user acquisition and growth, including but not limited to user registration, onboarding, SEO, and account management.

As part of this team, you will work closely with Product and Design to develop cutting-edge, experiment-driven features that enhance the user experience. In addition to front-end development, you'll be responsible for building the underlying technical architecture to ensure performance and scalability, while proactively exploring engineering-driven features and experiments that can drive user growth.

You will be working with React, Node.js, GitHub Actions, Terraform, and CDN infrastructure to build and deploy high-performance applications that reach millions of users.

This is a hybrid role based out of our Toronto office. You must be willing to travel to our Toronto office two days/week.

What You'll Do:

Work with product management and other stakeholders (Backend, Product, and UI/UX) to iterate on new growth-related features, including registration, onboarding, and SEO.
Lead the technical architecture and implementation of scalable and resilient applications that run on multiple platforms, such as web, mobile web, and smart TV devices.
Lead and drive innovation in building experiment-driven features that push the boundaries of user experience in streaming.
Consistently ship features and improvements across Web and OTT apps with minimal guidance, collaborating with cross-functional teams to deliver high-impact updates.
Identify and implement improvements in shared UI components, platform-specific optimizations, and overall front-end infrastructure.
Take ownership of the codebase and proactively identify opportunities for refactoring and development process improvement.
Mentor and collaborate with fellow engineers, sharing technical expertise and contributing to a culture of continuous learning and improvement.
Stay up-to-date with the latest web development trends and technologies, and evaluate their potential impact on the product and the team's skills.

Your Background:

Master's or Bachelor's degree from an accredited university, or equivalent work experience
5+ years of experience developing high performing and scalable web applications using React JS, Redux, JavaScript, Web APIs, HTML5/CSS, and Typescript
Experience leading engineering initiatives and effectively communicating with cross functional stakeholders
Experience mentoring junior engineers and internships

The AI Mandate: AI-Driven Development Practice

This role goes beyond traditional front-end engineering: you will extensively use AI to design, build, and optimize user-facing experiences. The goal is to unlock smarter design workflows, faster UI delivery, and automation at scale — all while ensuring accessibility, performance, and responsible AI use in production. This includes but is not limited to:

AI-Augmented Front-End Development: Using AI-assisted coding tools (Claude Code, Cursor, etc.) to accelerate development while maintaining rigorous standards for usability, performance, and maintainability. You will set the bar for how front-end engineers harness AI to prototype faster, ship pixel-perfect interfaces, and document components effectively across Tubi's design system.
AI-Enhanced UI Architecture & Performance Optimization: Exploring how AI can assist in modern front-end architecture — from React component design and state management to rendering performance, accessibility, and responsiveness. You will prototype and integrate AI-powered optimizations that improve Core Web Vitals, reduce bundle size, and enhance runtime efficiency across large-scale, user-facing applications.
AI-Driven Developer Experience: Contributing to internal front-end tooling and platforms that use AI to enhance developer productivity. This includes automated visual regression testing, design-to-code translation, intelligent component documentation, and real-time performance insights. You will help evolve Tubi's front-end engineering culture into an AI-native practice.

#LI-CL1

#LI-Hybrid

Tubi Media Group is a division of Fox Corporation, and the FOX Employee Benefits summarized here, covers the majority of employee benefits. The following distinctions below outline the differences between the Tubi and FOX benefits:

For all salaried employees, in lieu of the FOX Vacation policy, Tubi offers a Flexible Time Off Policy to manage all personal matters.

For all full-time, regular employees, in lieu of FOX Paid Parental Leave, Tubi offers a generous Parental Leave Program, which allows parents twelve (12) weeks of paid bonding leave (top up in Canada) within the first year of birth, adoption, surrogacy, or foster placement of a child in addition to applicable government leave program(s) and FOX's short-term disability policy (if applicable). This time is 100% paid through a combination of any applicable government leaves and wage-replacement programs in addition to contributions made by Tubi.

For all full-time, regular employees, Tubi offers a monthly wellness reimbursement.

About Tubi:

Boldly built for every fandom, Tubi is a free streaming service that entertains over 100 million monthly active users. Tubi offers the world's largest collection of Hollywood movies and TV shows, thousands of creator-led stories and hundreds of Tubi Originals made for the most passionate fans. Headquartered in San Francisco and founded in 2014, Tubi is part of Tubi Media Group, a division of Fox Corporation.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, gender identity, disability, protected veteran status, or any other characteristic protected by law. We will consider for employment qualified applicants with criminal histories consistent with applicable law.

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senior mobile application developer jobs in markham, on

Senior Software Engineer, Growth

Associate Principal - Business Analysis

Senior Software Engineer

Senior iOS Engineer

Director, Mortgage Fulfillment

Software Developer (Contract)

Senior Web Developer

Automation QA Lead

Design Engineer - Canada

Sr Software Engineer, Games

Sr. UX/UI Designer

Staff Software Engineer

Senior Software Engineer, Fullstack (Card Acquisition)

Frontend UI Web/App Developer

Staff Software Engineer – Backend (Typescript / .Nodejs / AWS )

Lead Game Designer

Senior iOS Tooling Engineer

Principal Android Engineer

Principal Android Engineer

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