Android Developer Contractor Jobs in Toronto, ON

As a Senior QA Engineer specializing in mobile ecosystems, you will play a critical role in ensuring the quality and performance of native applications for iOS and Android platforms. We are looking for someone who is able to master the complexities of testing real-device hardware, mobile operating systems, and associated backend integrations. Whilst the role focuses more specifically on native app, device and API testing experience, you will ideally have experience of testing web based applications and interfaces to assist with overall project deliverables.

You'll work across the team with developers, designers, and other QA engineers to understand requirements and validate that features work as expected. Your day-to-day will include executing test cases, validating critical user journeys, reporting bugs, performing & executing API testing, and testing LLM-based functionality within our applications.

This role is a unique opportunity for a tester who wants to be working with cutting edge large language models (LLMs).

Your day-to-day will involve:

Native App, Web & Device Testing: Validating user experiences and user journeys across iOS, Android and web based platforms, ensuring seamless performance on physical devices and various OS versions.

API & Integration Testing: Rigorously testing & automating the data layer and service integrations that power the mobile front-end.

Cross-Functional Collaboration: Partnering with developers and designers to translate complex requirements into comprehensive test strategies.

AI application testing: Testing AI functionality within applications, including chat based integrations with large language models (on federated LLM)

This position is perfect for a technically curious QA professional looking to bridge the gap between traditional mobile testing and the next generation of AI-accelerated quality engineering. You'll be working with modern mobile frameworks, building automation pipelines, and helping to deliver quality applications at scale.

Key Responsibilities:

• Automate & execute functional, regression, and UI/UX testing on native applications on iOS and Android platforms, ensuring feature parity and platform-specific compliance.
• Manage and execute tests across a diverse fleet of physical devices, browsers and cloud-based labs using BrowserStack.
• AI testing of chat based LLM integration, including validating expected inputs / outputs, aligned with standard ISTQB testing techniques.
• Automate & test REST APIs using tools like Postman, validating responses and data accuracy based on API schemas.
• Use MCP servers to accelerate automation test scenarios with the help of LLMs and AI.
• Report bugs clearly with steps to reproduce, screenshots, and relevant details to help developers fix issues quickly
• Test multilingual content to ensure proper display of English & non-English languages such as Traditional Chinese and Simplified Chinese.
• Validate user interfaces for responsiveness across desktop, mobile & tablet screen sizes.
• Participate in daily standups and provide testing status updates to the team.
• Review and provide feedback on requirements and user stories from a testing perspective.
• Maintain test documentation including test cases and test results.

• Strong experience with iOS and Android platforms including XCode, Android Studio.
• Native app testing experience with a Typescript / Javascript based framework such as using WebdriverIO & Appium, Detox framework.
• Experience with and understanding of Git for branching and version control.
• Experience with automating native apps in the cloud, ideally with Browserstack.
• Strong experience with API testing using tools like Postman or similar REST clients (Javascript / Typescript preference).
• Experience with automating API tests using Postman or similar tools (Javascript / Typescript preference).
• Experience integrating automation tests into CI / CD pipelines such as GitHub Actions, Bitbucket pipelines, Jenkins, Azure pipelines or AWS CodePipeline.
• Experience testing AI-based applications, particularly LLM based chat interfaces, validating inputs and outputs.
• Understanding of software testing fundamentals including test case design, bug reporting, and test execution.
• Cross-device testing experience and ability to identify device-specific issues.
• Strong attention to detail with ability to identify edge cases and potential issues.
• Good communication skills for reporting bugs, asking questions, and collaborating with developers, designers, project managers.
• Eagerness to embrace AI to accelerate testing.
• Ability to work independently while knowing when to ask for help.
  

Nice-to-Have:

• Web automation experience with Typescript / Javascript frameworks like Playwright, Cypress.
• Experience using LLMs such as GitHub Copilot, Claude Code, RooCode & MCP tools to accelerate automated test scenarios.
• Experience with performance testing APIs and associated endpoints using tools such as JMeter or Blazemeter.
• Native visual regression regression testing tools such as Percy or Applitools.
• Experience automating WhatsApp chatbot applications using applicable frameworks such as Botium.
• Basic SQL knowledge for querying databases to validate data.
• Knowledge and experience of industry standard security practices such as OWASP.
• Understanding of accessibility standards (WCAG) and how to test for them.

Detail-oriented problem solver: You naturally spot inconsistencies and think through different scenarios. When something doesn't work as expected, you dig deeper to understand why and document issues thoroughly so they can be fixed.
Eager learner: You're excited to develop your testing skills and learn new tools and technologies. You ask questions, seek feedback, and actively look for opportunities to improve your testing approach.
Collaborative team player: You work well with developers, designers, and other team members. You understand that QA is about helping the team deliver quality, not just finding faults.
Clear communicator: You can explain technical issues to both technical and non-technical people. Your bug reports are clear and actionable, making it easy for developers to understand and fix issues.

Adaptable and flexible: You're comfortable working on different types of projects and can adjust your testing approach based on project needs. You don't get frustrated when priorities shift or requirements change.
Quality advocate: You care about delivering good work and take pride in helping catch issues before they reach users. You understand that quality is everyone's responsibility.

What Appnovation Offers

• Challenging and rewarding work with real impact
• Direct Access to Cutting-Edge AI Platforms
• Diverse and Inclusive Culture 
• Growth opportunities for personal and professional development
• A collaborative and innovative work environment where your ideas are valued
• Exposure to exciting projects and high-profile clients
• Supportive work environment with access to company leaders
• Hybrid working model