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Active Directory Support Engineer

Company: Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!

Location: toronto, London

Posted: June 02, 2026

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Position Details

Job Summary

We are seeking an experienced Active Directory Support Engineer to support and maintain enterprise-level AD infrastructure. The ideal candidate will have strong expertise in AD operations, security hardening, troubleshooting, and automation, along with the ability to work in a fast-paced, production environment.

Key Responsibilities

  • Security Hardening: Implement and enforce Active Directory security best practices, including securing LDAP channels, disabling legacy protocols (e.g., NTLM), and managing privileged accounts.
  • Migration & Upgrades: Lead and support AD migrations, functional level upgrades, domain consolidations, and Windows Server upgrades.
  • AD Health Monitoring: Monitor domain controllers, replication processes, and DNS integration to ensure high availability and prevent outages.
  • Production Changes: Execute patches, promote domain controllers, and manage configu...