Windows Systems Administrator (Work from Home)

ROLE OVERVIEW The Windows System Administrator is responsible for the administration, maintenance, security, performance, and availability of Windows Server environments supporting Bell Canada. The role performs server patching, updates, upgrades, performance tuning, security hardening, vulnerability management, infrastructure changes, system monitoring, incident response, and automation.

The position also participates in disaster recovery and business continuity activities and provides after-hours on-call support as required to maintain reliable and resilient server operations. As part of a global IT team, the Windows System Administrator collaborates with network, database, application, and other technology teams to troubleshoot infrastructure issues, support system integration, and improve operational efficiency through scripting, automation, and effective technical documentation.

SPECIFIC DUTIES AND RESPONSIBILITIES Administer and maintain Windows Server environments , including patching, updates, upgrades, and performance tuning, to maintain stable, reliable, and efficient server operations. Provide after-hours on-call support and respond to system incidents and alerts to minimize service disruption and restore normal operations promptly and efficiently.

Implement and manage infrastructure changes , including proper documentation, testing, and execution, to support controlled technology changes and minimize operational risk. Perform server security hardening, vulnerability assessments, and security incident response to strengthen infrastructure security and support established security practices.

Monitor system performance, capacity, and availability using appropriate monitoring tools to proactively identify and resolve issues affecting infrastructure health and performance. Collaborate with network, database, application, and other IT teams to support seamless infrastructure integration, cross-functional troubleshooting, and effective technology operations.

Participate in disaster recovery and business continuity planning and testing to support system recovery and maintain operational resilience during outages or disruptions. Automate system administration activities using Power. Shell, Python, and applicable automation technologies to improve operational efficiency and reduce manual effort.

Create and maintain technical documentation , including system configurations, procedures, and troubleshooting guides, to support knowledge sharing, operational consistency, and effective issue resolution. Maintain knowledge of current technologies and trends in Windows Server administration, security, and operations to support continuous improvement of infrastructure management practices.

COMPETENCIES Core Competencies (Must-have Competencies) Windows Server Administration: Ability to administer, maintain, troubleshoot, patch, upgrade, secure, and optimize Windows Server environments to support stable and reliable operations. Virtualization and Infrastructure Technologies: Ability to manage and support enterprise virtualization and infrastructure platforms, including VMware v.

Sphere, VMware v. Center, and Red Hat Open. Stack. Scripting and Automation: Ability to use Power. Shell, Python, and applicable automation technologies to streamline system administration, monitoring, and operational processes. Networking Fundamentals: Ability to apply TCP/IP, DNS, DHCP, routing, and network troubleshooting concepts when supporting Windows Server and integrated infrastructure environments.

Infrastructure Security and Vulnerability Management: Ability to apply security hardening, firewall, IDS/IPS, vulnerability management, patch management, and security compliance practices to protect server infrastructure. Analytical Problem-Solving: Ability to analyze complex server, virtualization, network, and performance issues, identify root causes, and implement effective resolutions.

Complementary Competencies (Good-to-have Competencies) Enterprise Platform Support: Ability to support modern and legacy Windows Server platforms and use enterprise tools such as Ivanti Endpoint Manager to enable consistent patching and system administration. Operational Resilience and Change Management: Ability to follow change management practices, respond effectively in 24/7 and on-call environments, adapt to shifting priorities, and support disaster recovery and business continuity activities.

Collaboration, Communication, and Documentation: Ability to work independently and across technology teams, communicate technical information clearly, provide guidance when needed, and maintain accurate operational documentation.

QUALIFICATIONS

Educational Qualification/s Required Bachelor’s Degree in Computer Science, Information Technology, Engineering, or related fields. Preferred Relevant Microsoft certifications related to: Windows Server Administration Active Directory Microsoft Azure Hybrid Infrastructure Management VMware certifications are considered an advantage.

Red Hat certifications are considered an advantage. Networking certifications are considered an advantage. Security certifications are considered an advantage. ITIL certifications are considered an advantage. Professional Qualification/s Required Minimum of 3 years of hands-on experience in Server Administration, with a strong focus on managing, maintaining, and troubleshooting Windows Server environments.

At least 3 years of experience with enterprise virtualization platforms, including VMware v. Sphere, VMware v. Center, and Red Hat Open. Stack, covering deployment, administration, performance tuning, and operational support. Minimum of 3 years of experience in scripting and automation, with demonstrated proficiency in Power.

Shell and Python for system administration, process automation, monitoring, and operational efficiency initiatives. Strong understanding of networking concepts and infrastructure services, including TCP/IP, DNS, DHCP, routing, and network troubleshooting within enterprise environments. Solid knowledge of IT security principles and best practices, including firewall management, intrusion detection and prevention systems (IDS/IPS), vulnerability assessment, patch management, and security compliance.

Experience supporting and administering both modern and legacy Windows Server platforms to maintain system availability, stability, and security across diverse infrastructure environments. Strong analytical and problem-solving skills with the ability to identify, troubleshoot, and resolve server, virtualization, and network-related issues.

Excellent communication and collaboration skills with the ability to work effectively within cross-functional teams and provide technical guidance when required. Experience working in 24/7 enterprise production environments, supporting critical business applications and infrastructure while adhering to operational and change management processes.

Work Conditions Work from home Work Schedule: 24x7 Rotational Support

• Must be amenable to be assigned to any of the shifts below: Morning: 5AM-2PM PHT Mid: 12PM-9PM PHT Night: 8PM-5AM PH On-Call Requirements: Occasional overtime and on-call support may be required based on operational or project needs