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Senior Data Warehouse Engineer

2 weeks ago


Montreal, Quebec, Canada Aptino, Inc. Full time $90,000 - $140,000 per year

We are looking for an experienced
Senior Data Warehouse Engineer
to lead our modernization and performance optimization initiatives. This role involves re-platforming legacy systems, enhancing warehouse architecture, and driving efficiency across complex data processes. The ideal candidate is a hands-on technical expert with a deep understanding of SQL, PL/SQL, and large-scale automation using enterprise scheduling tools.

Responsibilities

  • Lead and execute data warehouse modernization and re-platforming projects.
  • Analyze system performance, troubleshoot bottlenecks, and implement optimizations.
  • Design, build, and maintain efficient ETL/ELT frameworks and data integration solutions.
  • Develop and fine-tune complex SQL and PL/SQL scripts for high-performance processing.
  • Automate and monitor batch data processes using Shell scripting on UNIX/Linux platforms.
  • Manage job scheduling and workflow orchestration in Control-M or similar tools.
  • Conduct root cause analysis (RCA) for performance issues and ensure long-term stability.
  • Define and enforce best practices in data warehouse coding, architecture, and documentation.

Required Skills & Qualifications

  • 5+ years of experience in data warehousing, with hands-on modernization and optimization work.
  • Expert in SQL and PL/SQL, with strong background in Oracle or equivalent databases.
  • Advanced Shell scripting experience for automation and system monitoring.
  • Proven experience with Control-M or enterprise job scheduling tools.
  • Solid understanding of data warehouse architecture and dimensional modeling.
  • Strong problem-solving and analytical skills.
  • Excellent communication and stakeholder collaboration ability.

Preferred Skills

  • Experience with
    Perl
    or
    Python
    for data scripting and automation.
  • Knowledge of
    Git
    for version control.
  • Familiarity with incident and change management tools like
    JIRA
    or
    ServiceNow
    .