Position: Senior Systems Administrator – Platform Services
Location: GTA
Salary Range: $99,121 to $125,000
Job Type: Permanent, Hybrid Onsite
Posting Type: Open Vacancy
Summary of the Role
The Senior Systems Administrator, Platform Services, will be responsible for supporting, maintaining, and improving enterprise infrastructure platforms across a large-scale, complex environment. This role will focus on virtualization, storage, Cisco fabric/network switching exposure, backup/data protection, and infrastructure automation.
The ideal candidate will have strong hands-on experience in large enterprise environments, with solid technical depth across VMware, enterprise storage, Fibre Channel SAN, Cisco fabric switches, and automation tools such as Ansible. This person should be comfortable handling day-to-day operational responsibilities while also contributing to automation, process improvement, platform reliability, and infrastructure projects.
This role requires someone who can clearly understand core infrastructure concepts, troubleshoot complex environments, support routine operational tasks, and help reduce manual work through scripting and automation.
Job Duties:
- Administer, support, monitor, and maintain enterprise infrastructure platforms across a large-scale environment.
- Support VMware virtualization infrastructure, including vCenter, ESXi, high availability, DRS, and related platform services.
- Manage and support enterprise storage platforms, including Fibre Channel SAN environments, block/file storage, snapshots, replication, and performance monitoring.
- Support Cisco fabric/network switching environments, including exposure to Cisco NDS/Fabric switches in complex enterprise infrastructure environments.
- Assist with the administration of approximately 12–14 Cisco fabric/switching components within the broader infrastructure environment.
- Support backup and data protection platforms for virtual machines, databases, and critical enterprise workloads.
- Perform routine operational tasks, including service requests, incident response, change requests, patching, monitoring, and infrastructure maintenance.
- Troubleshoot infrastructure issues related to performance, capacity, availability, storage, virtualization, and connectivity.
- Develop, maintain, or improve automation and scripting solutions using tools such as Ansible, PowerShell, PowerCLI, Bash, or similar technologies.
- Work with both existing scripts and newly developed scripts to improve efficiency and reduce manual administrative processes.
- Contribute to automation initiatives in large-scale environments, including configuration management, repetitive task automation, and infrastructure standardization.
- Collaborate with infrastructure architecture, operations, security, database, and application teams to support platform services and business-critical systems.
- Participate in disaster recovery and cyber recovery planning, testing, and support activities.
- Assist with capacity planning, lifecycle management, system currency, documentation, and continuous improvement initiatives.
- Participate in on-call support rotations and occasional on-site infrastructure work as required.
Qualifications:
- 5+ years of experience supporting enterprise infrastructure environments, ideally within large-scale organizations.
- Strong hands-on experience with VMware vSphere, vCenter, ESXi, high availability, distributed resource scheduling, and related virtualization tools.
- Experience supporting enterprise storage platforms, including SAN environments, Fibre Channel, block/file storage, snapshots, replication, and storage performance optimization.
- Exposure to Cisco fabric/network switching environments, including Cisco NDS/Fabric switches or similar enterprise switching technologies.
- Experience working in environments with multiple Cisco fabric/switching components is strongly preferred.
- Hands-on scripting or automation experience, with a strong preference for Ansible in large-scale environments.
- Experience writing, modifying, or executing automation scripts using Ansible, PowerShell, PowerCLI, Bash, or similar tools.
- Strong understanding of core infrastructure concepts, including virtualization, storage, networking, backup, automation, monitoring, and operational support.
- Experience supporting workloads across Windows Server, Red Hat Enterprise Linux, Microsoft SQL Server, and virtualized environments.
- Ability to perform day-to-day operational support, including incident resolution, change execution, troubleshooting, documentation, and manual infrastructure tasks when required.
- Experience with enterprise backup and data protection solutions supporting mission-critical systems.
- Strong troubleshooting skills across complex infrastructure environments.
- Familiarity with public cloud technologies such as Azure is considered an asset.
- Strong communication skills with the ability to clearly explain technical responsibilities, infrastructure concepts, and previous hands-on experience.
- Motivated, adaptable, and open to learning new automation tools, scripting methods, and infrastructure processes.
Please send your resume in Word format to neeta.bernard@quantum-qtr.com.
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