IT Systems Administrator

Who We Are

Canada Guaranty is a privately held Canadian mortgage insurer, established in 2010 following the acquisition of AIG United Guaranty Mortgage Insurance Company Canada by the Ontario Teachers’ Pension Plan and National Mortgage Guaranty Holdings Inc.

As a proudly Canadian company, we are committed to service excellence and helping Canadians achieve successful, long-term homeownership. Our mortgage solutions help protect lenders and investors from losses related to borrower default and foreclosure while ensuring Canadians are provided with greater access to affordable and sustainable homeownership.

Canada Guaranty’s performance-driven culture thrives on accountability, collaboration, and supportive teamwork. If you’re a dedicated team player with a strong track record of excellence, we can’t wait to hear from you!

About The Opportunity

The IT Systems Administrator is responsible for the daily administration, maintenance, security and reliability of Canada Guaranty’s Linux and Windows server environments and the infrastructure supporting critical business applications. The role provides hands-on systems support, monitoring, patching, troubleshooting, backup and recovery coordination, and basic network troubleshooting across on-premises and virtualized environments. The administrator works with the infrastructure team and service providers to maintain availability, performance, documentation and compliance with established IT controls.

In this role, you will:

• Install, configure, administer and maintain Linux servers (such as Red Hat Enterprise Linux and other enterprise distributions) and Microsoft Windows Server systems.
• Administer core Windows services, including Active Directory, Group Policy, DNS and DHCP, as applicable to assigned systems.
• Perform operating system patching, upgrades, hardening, vulnerability remediation, certificate renewals and routine maintenance in line with change-management requirements.
• Monitor server health, performance, capacity, logs and system alerts; investigate and resolve incidents and recurring issues.
• Use Linux command-line utilities, Bash/PowerShell scripting and automation to streamline routine administration and support activities.
• Support VMware/ HPE-VME virtual machines, virtualization operations and associated compute/storage infrastructure.
• Demonstrate working knowledge of TCP/IP, IP addressing, subnetting, VLANs, routing concepts, DNS, DHCP, NAT and common network ports/protocols.
• Troubleshoot basic server-to-server and user-to-service connectivity using tools such as ping, traceroute, nslookup/dig, netstat/ss and packet captures when appropriate.
• Coordinate network changes with designated network engineers; advanced firewall, switching and routing design remains outside the primary scope of this role.
• Apply security baselines, least privilege access, configuration standards and timely remediation of identified risks.
• Support audit evidence requests, internal controls and security/compliance reviews in a regulated environment.
• Work collaboratively with IT colleagues, application teams, vendors and business stakeholders to resolve service issues.

Essential Qualifications

Availability outside regular business hours, when scheduled or required, to support planned system changes, patching and deployments, and availability to assist with critical production incidents and recovery activities outside regular business hours, in accordance with team escalation arrangements, is an essential requirement of this role.

• College Diploma or University Degree in a related field.
• At least 2 years of hands-on experience in systems administration, including practical administration of both Linux and Windows Server environments.
• Ability to troubleshoot Linux and Windows operating systems, services, logs, permissions, patching and performance issues.
• Working experience with Active Directory and common Windows infrastructure services.
• Working knowledge of virtualization technologies, such as VMware/ HPE-VME.
• Fundamental networking knowledge and ability to diagnose common TCP/IP, DNS, routing and firewall-connectivity issues; advanced network engineering expertise is not required.
• Familiarity with infrastructure monitoring, backups, access controls, operational documentation and change-management practices.
• Experience using command-line administration tools and basic Bash and/or PowerShell scripting.
• Takes ownership of technical issues and follows them through to resolution.
• Understands the importance of confidentiality, integrity and availability for sensitive business systems.
• Communicates clearly with technical colleagues, vendors and non-technical users.
• Demonstrates a customer-service mindset, analytical troubleshooting skills and attention to detail.
• Works independently and collaboratively, prioritizes competing requests and maintains clear documentation.
• Shows initiative and a commitment to continual learning and improvement.

Preferred Qualifications

• Previous experience with:
  • IBM i / Power Systems (iSeries), IBM MQ and enterprise middleware
  • Apache HTTP Server, Tomcat and web server certificate management
  • Puppet or other configuration-management tools; Splunk or similar logging platforms
  • Workspace ONE (WS1), remote-access solutions and workstation VPNs
  • Enterprise infrastructure security and audit controls (e.g., SOC 2 or comparable environments)

What We Offer You

Canada Guaranty is proudly recognized by the Great Place to Work® Institute as one of the Best Workplaces™ in Canada – 100-999 Employees (2025, 2026). We are also honoured to be recognized as among the Best Workplaces™ in Financial Services & Insurance (2024 - 2026), Best Workplaces™ in Ontario (2024 - 2026), Best Workplaces™ for Mental Wellness (2025, 2026), Best Workplaces™ for Inclusion (2025, 2026), Best Workplaces™ for Women (2025, 2026), and Best Workplaces™ with the Most Trusted Executive Teams (2025, 2026). Join us and see why!

We offer a comprehensive total rewards package, including competitive compensation, company-matched retirement programs, health and dental coverage, flexible work options, and a friendly, inclusive, and supportive culture.

The salary range for this position ranges from $105,000 to $115,000. Offers are determined by a variety of factors, including job-related knowledge, skills, and experience, along with internal equity.

Accommodation Notice

Canada Guaranty is committed to fostering an equitable, accessible environment where all employees feel valued and supported. We are committed to building a workforce that is representative of the communities we serve and work alongside. Candidates may request accommodation at any point during the interview process.

We may leverage AI tools to assist us through our recruitment process. This posting is for an existing vacancy.

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