senior systems testing/qa specialist.

We are seeking a highly accomplished Senior Systems Testing/QA Specialist for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier quality engineering and testing leadership capacity, specializing in formulating testing strategies, planning QA execution, and validating complex .NET web applications and RESTful APIs.

As a senior QA specialist, you will bridge the gap between software engineers, business analysts, and project managers throughout the entire Systems Development Life Cycle (SDLC). Operating within a hybrid work model, you will establish comprehensive test plans, author detailed test cases, execute database validation queries, and manage end-to-end defect tracking using Azure DevOps. This position is ideal for an experienced QA authority who can ensure system performance, connectivity, error handling, and business readiness for mission-critical application platforms.

Location: Toronto, ON

Assignment Type: Hybrid (2 days per week onsite at manager's discretion)

Contract Duration: 6-month contract (Potential for extension)

Advantages

Core .NET & API Stack: Direct hands-on testing of enterprise .NET web applications and RESTful APIs using Postman.

Modern Azure DevOps Workflow: Author test strategies, create task estimates, and govern defect lifecycles directly within Azure DevOps Test Plans.

Database & Data Integrity: Utilize SQL queries to perform backend database validations and verify system data consistency.

Balanced Hybrid Model: Enjoy a flexible working arrangement combining collaborative onsite teamwork in Toronto with remote flexibility.

Responsibilities
Provide overarching testing strategy, define test plans, select appropriate testing tools, and estimate QA-related tasks in Azure DevOps.

Plan and organize comprehensive testing efforts for large systems across Graphical User Interface (GUI) and non-GUI environments.

Execute functional, systems integration, connectivity, error handling, regression, and specialized non-functional tests (such as stress and performance testing).

Design, build, and execute detailed test cases and test scenarios based on business and system requirements.

Test RESTful web APIs and web services using Postman or equivalent API testing utilities.

Perform backend data validation and database integrity checks using SQL queries.

Lead end-to-end defect management by identifying, logging, isolating, tracking, and verifying software bugs to resolution.

Collaborate closely with software engineers and business analysts during design, development, implementation, and user acceptance testing (UAT) phases.

Support project teams with user acceptance testing coordination, technical troubleshooting, and operational readiness reviews.

Maintain clear technical documentation, test execution metrics, and quality summary reports for project stakeholders.

Qualifications
Core Technical & QA Requirements
Web Application Testing (.NET): 8 to 10 years of hands-on experience executing quality assurance and systems testing for web applications built on the .NET framework.

REST API Testing: Minimum 3 years of hands-on experience testing RESTful APIs and web services using Postman or equivalent tooling.

Azure DevOps Test Management: Minimum 3 years of hands-on experience designing test plans, managing test suites, and tracking defects in Azure DevOps Test Plans / TFS.

SQL & Database Verification: Minimum 3 years of hands-on experience writing complex SQL queries to inspect databases and validate backend data states.

Test Strategy & SDLC: Proven experience authoring end-to-end test strategies, test cases, and managing defect triage across all phases of the Systems Development Life Cycle.

Preferred Assets
Education: Degree in Computer Science, Engineering, or an equivalent technical discipline.

Accessibility Compliance: Knowledge and understanding of digital accessibility standards, including AODA and WCAG regulations.

Automation & Scripting: Working knowledge of automated testing tools or programming languages.

Public Sector Context: Prior experience working within enterprise public sector environments is preferred.

Soft Skills & Collaboration
Communication Skills: Excellent interpersonal, verbal, and written communication skills to explain complex technical findings clearly to diverse project teams.

Team Orientation: Strong collaborative mindset with proven ability to work effectively alongside developers, analysts, and project managers.

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 View email address on randstad.com to ensure their ability to fully participate in the interview process.

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