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Added 8 mins ago
Full-Stack Developer (Rust & WebAssembly)
SuperQubit Inc.
Markham, ON
$80,000 to $120,000 CAD / year
Full-time
The candidate will work closely with our engineering team to design, develop, test, deploy, and maintain production-quality software.
Added 8 mins ago
SAP ISU Business Analyst
LanceSoft, Inc.
Calgary, AB
$55 to $60 CAD / hour
Contract
1. Business Analysis & Requirement Management
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Agent(e) de planification, de programmation et de recherche - Planning, programming and research officer
Hôpitaux Shriners pour enfants - Canada
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Full-time
Added 8 mins ago
Course Development Quality Control Specialist
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$55,000 to $65,000 CAD / year
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A background in data management, records management, or maintaining large amounts of detailed information
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Premier ou première spécialiste scientifique – Développement de l’IA et systèmes agentiques // Senior Scientist - AI Dev and Agentic Systems
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Vous définirez comment ces solutions sont évaluées : vous mettrez en place les ensembles de test, les références, les balises et les mécanismes de surveillance qui permettent de justifier…
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Senior Manager of Test Engineering
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Full-time
Oversee calibration, maintenance, reliability, and lifecycle management of test equipment.
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Senior Software Developer
Xplore Inc.
Markham, ON
Full-time
Lead technical design for features and integrations (APIs, events, data flows), documenting decisions and guiding implementation through reviews and pairing.
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Brainstorm and build content calendars using insights and data, scheduling posts at peak times for maximum
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Clinical Scientist, Newborn Screening Ontario - Permanent Full-Time
CHEO
Ottawa, ON
$173,491 to $202,117 CAD / year
Full-time
…multidisciplinary team at NSO comprises dedicated clinical, laboratory, management, and administrative…
Added 8 mins ago
Software Developer - Integration
AMA - Alberta Motor Association
AB · Edmonton, AB
Full-time
…Developer on our Information Services team, you'll design, build, test, and support backend solutions that help AMA deliver exceptional experiences for members and employees. You'll help…
Added 9 mins ago
Human Resources Business Partner, DHPA
Westerkirk
Calgary, AB
…relations, workforce planning and recruitment, performance management, compensation, disability management, organizational change, and HR reporting and…
Added 23 mins ago
Course Development Quality Control Specialist
BIS Safety Software
Sherwood Park, AB
Full-time
A background in data management, records management, or maintaining large amounts of detailed information
Added 38 mins ago
Hardware Engineer
Percucision
Montreal, QC · Greater Montreal Metropolitan Area
Full-time
You will also work with embedded firmware when needed for board bring-up, sensor configuration, data acquisition, and troubleshooting, but the primary emphasis of this role is hardware and…
Added 38 mins ago
Quality Assurance Engineer
Squarepoint
Montreal, QC
Full-time
Drive automation by developing and maintaining automation frameworks for applications across technology like data services, position keeping and risk management
Added 39 mins ago
Applications Specialist
Medavie
St. John's, NL · NL Head Office MHNL St. John's (NL)
Full-time
…Specialist will also work collaboratively with System Performance on data, CAD reporting, dashboards, system performance information, and other reporting requirements to ensure PMCC has…
Added 39 mins ago
Clinical Scientist, Newborn Screening Ontario - Permanent Full-Time (1.0)
CHEO
Ottawa, ON
Full-time
…multidisciplinary team at NSO comprises dedicated clinical, laboratory, management, and administrative…
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MAPLE Junior Project Engineer
National Research Council Canada
Ottawa, ON
…and testing of scientific instrumentation, software systems, data acquisition systems, and research infrastructure while also supporting project planning, scheduling, coordination, and…
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Senior Platform Engineer
Manulife
Toronto, ON · Waterloo, ON
Full-time
Design and test highly available, resilient solutions across multiple Azure regions.
Added 39 mins ago
Product Manager
Varonis
Canada
$110,000 to $140,000 CAD / year
…is a highly hands-on product ownership role spanning product management, implementation, acceptance testing, deployment support, product tuning, and ongoing optimization. The group manages…
Added 39 mins ago
Manager, Project Delivery
Four Seasons Hotels and Resorts
Toronto, ON · Four Seasons Corporate Headquarters Toronto
Full-time
Four Seasons Hotels and Resorts is a global, luxury hotel management company. We manage over 130 hotels and resorts and 50 private residences in 47 countries around the world and growing.…
Added 53 mins ago
Quality Continuous Improvement Technician (Night Shift)
Wonderbrands
Toronto, ON · Etobicoke, ON
Other
Experience with quality management software, data analytics tools, and automation systems (a plus).
Added 53 mins ago
Senior Project Manager, Aircraft Program Development (ACP)
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Remote, Canada
Full-time · Remote
You carry the program the full distance: concept, requirements, design, integration, ground test, flight test. When a design decision creates a conflict between two disciplines, or the…
Added 53 mins ago
Statistical Officer
Library of Parliament / Bibliothèque du Parlement
Ottawa, ON
Full-time
Reporting to the Senior Manager, Data Analysis and Visualization, the Statistical Officer provides non-partisan statistical services, data analysis and data visualization to support the…
Added 1 hour ago
Business Analyst
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Toronto, ON
Contract
…business stakeholders, and technical teams to define, design, test, and continuously improve accessible digital…
Added 1 hour ago
Mainframe Testing
Avanciers Inc.
Toronto, ON
$90,000 to $95,000 CAD / year
Full-time
Use test data management capabilities to enable effective automated test data provisioning.

CoreFactor Inc.

ETL Tester (Contract)

Toronto, ON, Canada
Downtown Toronto (Toronto Dominion Centre / Design Exchange), ON, Canada

Job type: Full-time
Posting language: English
Posted: Sep 27, 2026

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Original job description

CoreFactor is searching for an ETL Tester on a contract basis for a Financial Services client in the GTA .

This position is hybrid and will require the successful incumbent to go into the office four (4) days per week.

Roles and Responsibilities

Collaborate with developers, business analysts, data engineers, and other stakeholders to identify, troubleshoot, and resolve data quality issues.
Participate in requirements reviews, source-to-target mapping sessions, and design discussions to ensure testability, completeness, and data quality.
Analyze source-to-target mappings, define test strategies, create comprehensive test cases, and perform rigorous data validation.
Validate data accuracy, completeness, and integrity through source-to-target reconciliation and transformation testing.
Execute complex SQL queries, perform backend testing, and validate ETL transformations across Oracle, SQL Server, and BigQuery platforms.
Validate end-to-end ETL workflows, data pipelines, and data movement across source, staging, and target environments.
Work with multiple source systems containing structured, semi-structured, and JSON data.
Develop and maintain automated data validation, reconciliation, and regression tests using Python, SQL, and other automation utilities.
Support continuous improvement of ETL testing processes through automation and reusable testing frameworks.
Own test planning, test execution, defect management, regression validation, test reporting, and testing sign-off for assigned EDW initiatives.
Collaborate with project teams to support release readiness activities and ensure delivery quality.
Maintain test cases, test results, defect logs, and other QA artifacts in Jira, Confluence, and related project repositories.

Requirements

5+ years of hands-on experience in ETL testing, data validation, source-to-target reconciliation, data transformation testing, and end-to-end validation of data pipelines in Data Warehouse environments.
Strong experience with SQL, backend testing, ETL validation, and complex BigQuery queries for data validation, reconciliation, and troubleshooting.
Strong understanding of Data Warehousing concepts, ETL processes, data modeling, and data quality principles.
Hands-on experience with Oracle, SQL Server, BigQuery, Informatica PowerCenter, Airflow/Cloud Composer, and GCP data services.
Experience validating data across source, staging, and target systems, including structured, semi-structured, and JSON data.
Experience developing and maintaining ETL test automation solutions using Python, SQL, or similar technologies for automated data validation, reconciliation, and regression testing.
Proven ability to own test planning, test execution, regression validation, defect management, and testing sign-off activities for EDW initiatives.

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More about this job

Responsibilities

Collaborate with cross-functional teams to troubleshoot data quality issues and validate ETL workflows across various platforms. Manage the end-to-end testing lifecycle, including test planning, execution, and reporting for data warehouse initiatives.

Requirements

Requires 5+ years of hands-on experience in ETL testing, data validation, and source-to-target reconciliation within data warehouse environments. Proficiency in SQL, Python, and major data platforms like BigQuery, Oracle, and Informatica is essential.

Skills

ETL Testing
SQL
Data Validation
BigQuery
Oracle
SQL Server
Informatica PowerCenter
Python
Data Warehousing
Data Modeling
Airflow
Cloud Composer
GCP
Backend Testing
Defect Management
Regression Testing

Visa sponsorship

Not detected in the job text

Keywords

ETL Testing
Data Warehouse
SQL
Python
BigQuery
Oracle
SQL Server
Informatica PowerCenter
Airflow
Cloud Composer
GCP
Data Validation
Source-to-target Mapping
Backend Testing
Data Integrity
Regression Testing
Defect Management
Jira
Confluence
Financial Services
Data Pipelines
Automation
Data Modeling
Quality Assurance
Structured Data
Semi-structured Data
JSON
EDW
Reconciliation
Test Planning

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