StafinGo Is Hiring | Senior Quality Assurance Specialist – SQL & ETL Testing-Hybrid in Ontario

Location: Ontario, Canada (Hybrid - Up to 3 days onsite, at the Hiring Manager's discretion)

Contract: December 7th, 2026 - April 13th, 2027

Extension: Possible for unused business days

Compensation: $60-$75/hour, depending on engagement type and experience

Industry: Public Sector | Digital Health & Data Analytics

About the Role :

StafinGo is seeking an experienced Senior Quality Assurance (QA) Specialist to support a digital health initiative focused on modernizing cancer screening communications across Ontario.

The successful candidate will play a key role in testing monitoring, and evaluation reporting requirements, validating data transformations, and ensuring the accuracy and integrity of data across systems. This position requires solid SQL expertise, hands-on ETL testing experience, and a solid background in data warehouse or data migration projects.

Key Responsibilities

- Develop and execute test plans, test cases, and complex SQL scripts to validate backend data and ETL processes.
- Perform manual, functional, integration, interface, performance, and regression testing.
- Validate data extraction, transformation, migration, and reporting results using SQL queries.
- Prepare and maintain test documentation, requirements traceability, and QA results reports.
- Collaborate with QA leads, project managers, business analysts, developers, and business stakeholders.




- Identify, investigate, document, and communicate defects and recommend improvements.
- Support testing strategy, effort estimation, test planning, and quality assurance best practices.
- Ensure proper documentation and knowledge transfer to the project team.

Required Qualifications :

- 5-7 years of experience writing complete SQL scripts, including complex joins, aggregations, and data validation queries.
- 3-5 years of experience testing ETL processes using Informatica or an equivalent ETL tool.
- Hands-on experience with data warehouse and/or data migration projects.
- Strong knowledge of SQL Server and/or Oracle database concepts, including stored procedures, triggers, packages, and views.
- Experience using business requirements, user stories, data models, and data mappings to design and execute test cases.
- Strong analytical, problem-solving, communication, and documentation skills.
- Ability to work independently, manage competing priorities, and deliver within tight deadlines.

Nice-to-Have Skills :

- IBM DataStage ETL testing and execution using UNIX shell scripts.
- Siebel or CRM technical experience.
- Familiarity with Azure, AWS, or other major cloud platforms.
- Basic Unix/Linux knowledge, including navigation, connectivity, and command execution.
- Master Test Plan
- SQL Test Scripts
- Requirements Traceability Documentation
- QA Test Results Summary Report

📌 Senior Quality Assurance Engineer (Toronto)
🏢 StafinGo
📍 Toronto