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Critical Mass

Senior Quality Assurance Specialist, Contract

Critical Mass, Toronto, ON


You will:
  • Highly collaborate on the planning, design, and execution of comprehensive testing strategies for both manual and automated testing, ensuring the delivery of high-quality software.
  • Collaborate closely with cross-functional teams, including developers, product managers, and business analysts, to understand requirements and provide input on testability.
  • Develop and maintain automated test scripts, frameworks, and tools to improve efficiency and test coverage.
  • Mentor and guide junior QA team members, fostering a culture of continuous improvement and knowledge sharing.
  • Identify, document, and track software defects, working closely with development teams to facilitate timely resolution.

You have:
  • 6+ years' experience in software testing, with a focus on both manual and automated testing methodologies.
  • Proficiency in test automation tools and frameworks, such as Selenium, JUnit, TestNG, or similar.
  • Strong understanding of software development lifecycle, testing processes, and best practices.
  • Experience in creating and executing test plans, test cases, and test scripts based on project requirements.
  • Excellent analytical and problem-solving skills, with a meticulous attention to detail.

Nice-to-haves:
  • Familiarity with performance testing tools and techniques.
  • Experience in API testing and understanding of RESTful API principles.
  • Knowledge of continuous integration and continuous delivery (CI/CD) pipelines.
  • Experience with testing mobile applications on various platforms (iOS, Android).
  • Certifications in software testing (ISTQB, CSTE, etc.) and active participation in QA communities or forums.


Critical Mass is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We do not tolerate discrimination on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. If you are an individual with disabilities who would like to request an accommodation, please reach out to [redacted].

We are committed to fostering diversity, equity, and inclusion within our pool of candidates, with a target of achieving at least 50% representation from underrepresented communities.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.

If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx