Senior Quality Assurance Analyst
GFL Environmental Inc. • Vaughan, Ontario, Canada
Role & seniority: Senior QA Analyst (manual testing focus)
Stack/tools: Legacy .NET Framework apps; modern React/NET 6; Salesforce integrations; SQL data validation; API testing (Postman); AWS environment; test management/tools (Jira, Azure DevOps, or TestRail); potential Playwright for automation in future
Top 3 responsibilities
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Migration testing: verify business logic as systems move from .NET 4.8 monoliths to .NET 6 microservices
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Salesforce validation: ensure accurate data sync and workflow integrity between internal apps and Salesforce modules
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Advanced data/End-to-end testing: perform SQL-backed verification of UI actions and cross-system behavior; conduct deep manual testing of React frontends; manage regression for both legacy and cloud-native features
Must-have skills
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6+ years manual QA experience on complex enterprise web apps
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Experience testing both legacy .NET and modern SPAs (React/TypeScript)
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SQL: writing complex queries (joins, unions, aggregates) for backend validation
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Salesforce testing (Sales/Service Cloud) and third-party integrations
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API testing (Postman or equivalent)
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AWS familiarity (logs/CloudWatch)
Nice-to-haves
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Exposure to Playwright or interest in learning automation
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Testing tools: Jira, Azure DevOps, or TestRail
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Location & work type: Location not specified; full-time role
Full Description
Role Overview We are seeking a Senior QA Analyst who excels at navigating complex enterprise ecosystems. This role is critical for our migration journey, requiring someone who can rigorously test legacy .NET Framework applications while validating new features in a modern React/.NET 6 environment. The ideal candidate brings a strong background in Salesforce testing and SQL, ensuring that data flows seamlessly between our custom applications and our CRM. While we are moving toward automation with Playwright, this role is primarily focused on expert manual testing, data integrity, and cross-system validation. Key Responsibilities Migration Testing: Validate that business logic remains consistent as we migrate from legacy .NET 4.8 monoliths to modern .NET 6 microservices. Salesforce Validation: Test integrations between our internal applications and Salesforce, ensuring lead data, customer records, and workflows sync correctly. Advanced Data Testing: Use SQL to perform "under-the-hood" verification, ensuring that the database reflects the UI actions and that no data is lost during migration. End-to-End Functional Testing: Perform deep-dive manual testing on React-based frontends, focusing on user experience, browser compatibility, and edge-case scenarios. Regression Management: Maintain a high-quality bar for legacy systems while simultaneously testing new cloud-native (AWS) features. Collaboration: Work closely with developers to translate complex business requirements into executable test plans. Technical Requirements Core QA Competencies Manual Testing Excellence: 6+ years of experience in manual QA, specifically with complex enterprise-level web applications. Legacy vs. Modern: Proven experience testing both legacy .NET environments and modern SPAs (React/TypeScript). SQL Mastery: Ability to write complex queries (Joins, Unions, Aggregate functions) to validate backend data without relying on the UI. Platform & Tools Salesforce: Experience testing Salesforce modules (Sales/Service Cloud) and verifying third-party integrations. API Testing: Proficient with Postman or similar tools to test REST APIs. AWS Environment: Familiarity with testing in cloud environments and using tools like CloudWatch to check application logs. Preferred "Add-on" Skills Automation Curiosity: While this is a manual-heavy role, any familiarity with Playwright (or a desire to learn it) is a significant plus as we build out our automation suite. Testing Tools: Experience with Jira, Azure DevOps, or TestRail for defect tracking and test case management. Candidate Profile The "Bridge": You understand how old systems work and aren't afraid to dig into legacy documentation, but you are excited about modern tech. Detail-Oriented: You notice the small data discrepancies that others miss. Systems Thinker: You don't just test a button; you understand how that button affects the SQL database and the Salesforce record. We thank you for your interest. Only those selected for an interview will be contacted. GFL is committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. If you are interested in applying for employment and need special assistance or an accommodation to apply for a posted position, please contact myworkdayrecruitment@gflenv.com This hiring process may utilize machine-based systems to assist in screening and assessing applicants. Final selection decisions are made by our recruitment team. Current GFL Employees If you are an existing GFL employee and would like to search and apply to current job openings, please visit the internal GFL Jobs Hub. At the heart of GFL lies our greatest asset—our people. So, we're glad you landed here! We believe in great careers, making a positive impact on the environment and supporting our people with their life ambitions. We aspire to create the right jobs in a way that brings you along with us. At GFL, growth isn’t just for our business—it’s for our people. Because we see the potential in all our employees to do whatever it is they set their mind to, and we’re proud to support them in that journey. We consider our employees’ personal goals, helping them create the career, and life, that they desire—whether it’s advancing in their job, learning new skills, forming lasting relationships, or mentoring others, while having time to pursue other life ambitions. With safety and sustainability at the core of what we do, we all come together to form “Team Green”—united by our shared purpose to provide environmental solutions that enable our customers and the communities we serve to be Green For Life. We’re proud to say that working for GFL is more than a job. It’s an opportunity to make a difference and grow tremendously along the way. Regardless of the work we’re doing today, we’ve got our sights set on the big picture—not just tomorrow, but for life. GFL empowers those looking for growth in their career and lives, whether that's on our Field Operations teams or Professional Services teams. Field Operations – Our Field positions offer candidates across North America the potential for limitless growth and skill expansion as the front line of our organization, making them central to our company's vision of creating cleaner and more sustainable communities. Professional Services – Our Corporate positions located in key North American offices grow candidates to form strong client relations, manage key programs and accounts, and ensure our Field teams are operating at maximum efficiency.