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Mercer Senior Systems Administration Expert

Company: Marsh

Location: toronto, London

Posted: June 05, 2026

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Position Details

Join Mercer as a Senior Systems Administration Expert in a hybrid role based in Toronto. This position focuses on optimizing reliability through effective monitoring and collaboration across teams.

Your 10+ years in IT will lead you to manage telemetry and observability, ensuring customer-centric solutions and effective integration across platforms. You'll employ strong project management skills and ITIL practices while driving automation and mentoring junior staff in an agile setting.

Key Responsibilities:
• Use telemetry data for reliable service improvements
• Maintain enterprise monitoring tools and implement integrations
• Partner with stakeholders for actionable insights through dashboards
• Identify automation and efficiency opportunities
• Lead complex projects and mentor team members

Requirements:
• 10 years of experience, ideally in large global organizations
• Extensive background in APM and mon...