Senior Systems Testing/QA Specialist

We are seeking an experienced Senior Systems Testing/QA Specialist to lead and execute end-to-end quality assurance for enterprise platform features, integrations, and releases. In this role, you will be responsible for developing risk-based test strategies, master test plans, automated scripts, and quality metrics across functional, integration, system, regression, accessibility, performance, and security testing layers. Working closely with cross-functional technical leads, developers, DevOps engineers, and business stakeholders, you will manage test environments, drive defect triage, verify system requirements, and provide evidence-based release-readiness assessments to ensure reliable software delivery.

Location: Toronto, ON (Fully Onsite – 5 days/week required)

Duration: 11-month contract.

Advantages
Full-Spectrum Testing: Lead end-to-end QA spanning UI, REST API, microservices, accessibility, and performance testing.

Cloud & Automation Focus: Build reusable automation frameworks for distributed cloud applications and system integrations.

Release Governance: Deliver direct, evidence-based release readiness assessments and risk evaluations to leadership.

Onsite Synergy: Collaborate directly alongside developers, architects, and business leads in a dedicated workspace.

Responsibilities
Test Strategy & Master Planning: Define, maintain, and execute comprehensive risk-based test strategies, master test plans, test scenarios, test scripts, data sets, and completion reports.

Full-Spectrum QA Execution: Perform manual and automated testing across functional, integration, system, regression, accessibility (AODA/WCAG), performance, security, API, database, and user acceptance testing (UAT) domains.

Test Automation Engineering: Design, build, and maintain automated test suites covering user interfaces, REST APIs, microservices, and database components.

Cloud & Microservices Validation: Validate cloud-based microservices, distributed architectures, and complex multi-system integrations.

Defect Management & Resolution: Lead defect triage sessions, track defects through identification, prioritization, resolution, and retesting, while maintaining end-to-end requirements traceability.

Environment & Readiness Coordination: Coordinate test environments, accounts, tools, data dependencies, and entry/exit schedules across business and technical teams.

Quality Metrics & Risk Assessment: Author quality metric dashboards, report testing progress, evaluate residual quality risks, and deliver evidence-based recommendations on production readiness.

Qualifications
End-to-End QA Leadership: Proven experience planning and executing end-to-end testing strategies for complex enterprise digital solutions (Strictly Required).

Multi-Layer Testing Execution: Hands-on experience with functional, integration, system, regression, accessibility, performance, and user acceptance testing (Strictly Required).

Test Automation: Demonstrated experience designing and maintaining automated test suites for user interfaces, APIs, services, or databases (Strictly Required).

Cloud Applications & Microservices: Practical experience testing cloud-native applications, microservices, and multi-platform system integrations (Strictly Required).

Cross-Functional Stakeholder Coordination: Proven ability to coordinate business and technical teams throughout test execution, environment readiness, and defect resolution (Strictly Required).

Nice-to-Have Assets:
Prior quality assurance or systems testing experience within a public sector environment.

Knowledge of web accessibility standards (WCAG / AODA compliance) and security testing frameworks.

Experience working with Agile, DevOps, and continuous integration/continuous deployment (CI/CD) pipelines.

Summary
If you're interested in the "Senior Systems Testing/QA Specialist" role based in Toronto, we encourage you to apply online at
Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.