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Hays

Senior Data Engineer

Contract · In Office · Toronto, Ontario (Canada)

Posted Jun 17, 2026

Work Options
Seniority Level
Cloud Stack
Positions
Job Type
Position Group
  • Role: Senior Data Engineer
  • Rate: $60-70/hr T4; $70-80/hr INC
  • Length: 6 months (strong potential for extension)
  • Location: Downtown Toronto (1-2 days onsite)
  • Your New Company
  • Join a high-performing, data-first technology team building a best-in-class Retail Media platform. This team is focused on delivering innovative ad tech solutions that enable internal and external users to create, manage, and measure advertising campaigns at scale. You’ll be working in a fast-paced, product-driven environment where data sits at the heart of every decision.
  • Your New Role
  • As a Senior Data Engineer, you will play a key role in designing and building scalable data solutions that power advertising analytics and reporting across the Retail Media Platform.
  • You will:
  • Build and optimize scalable data pipelines to support campaign reporting and analytics
  • Analyze data to uncover patterns, identify issues, and ensure high-quality reporting outputs
  • Develop robust data models and semantic layers to support downstream analytics
  • Automate reporting pipelines and contribute to real-time streaming dashboards
  • Design and implement data validation and testing strategies to ensure data integrity
  • Optimize queries and performance across different layers of the data pipeline
  • Collaborate with cross-functional stakeholders including Product, Engineering, Marketing, and Analytics teams
  • Support a hypotheses-driven, data-centric product development environment
  • What You’ll Need to Succeed
  • To be successful, you will bring:
  • 5+ years of experience as a Data Engineer
  • Strong experience building data pipelines using Python, Java, or Scala
  • Hands-on experience with GCP tools (e.g., BigQuery, Dataproc)
  • Experience with modern data stack tools such as DBT and Airflow
  • Experience working with non-relational databases (e.g., Bigtable, Druid)
  • Strong SQL skills with the ability to write complex queries and perform deep analysis
  • Solid understanding of data warehousing concepts
  • Experience working in cloud environments (GCP, AWS, or Azure)
  • Familiarity with Git and engineering best practices
  • Strong stakeholder management and communication skills
  • Experience working in Agile environments
  • Nice-to-have:
  • Experience in advertising, ad tech, or retail media platforms
  • What You’ll Get in Return
  • Opportunity to work on a cutting-edge Retail Media / Ad Tech platform
  • Highly collaborative, cross-functional team environment
  • Exposure to large-scale, real-time data challenges
  • A strong data-driven culture focused on innovation and experimentation
  • Competitive market-aligned compensation and flexible work environment
  • What You Need to Do Now
  • If you’re a data engineer passionate about building scalable data platforms and driving impact through analytics, please apply with your updated resume or reach out directly to discuss the opportunity in more detail.

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Senior Data Engineer

Hays

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