Last updated: 2025-11-06

30 It Systems Administration jobs in Toronto.

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Kepler Communications

At Kepler Communications, we're not just imagining the future of connectivity - we're leading it! Our mission is to provide real-time Internet access in space,…

Senior Network Administrator

Toronto

  • Skills: network design, cloud networks, performance, scalability, reliability, modernization, automation, collaboration, system security, mission-critical systems
  • Level: senior
  • Type: full_time

PagerDuty, Inc.

PagerDuty, Inc. (NYSE:PD) is a global leader in digital operations management. Trusted by nearly half of both the Fortune 500 and the Forbes AI 50, as well as …

Senior Network Engineer

Toronto

  • Skills: network engineering, DNS security, Zero Trust, DDoS mitigation, network automation, incident response, cloud environments, security controls, enterprise security, TCP/IP networking
  • Level: senior
  • Type: full_time

Scotiabank

Scotiabank is a leading bank in the Americas. Guided by our purpose: 'for every future', we help our customers, their families and their communities achieve su…

Technical Specialist Advisory, Linux - Unix Expert

Toronto

  • Skills: UNIX support, RedHat Linux, Solaris, VMware, Cloud, Veritas Clustering, Automation, Ansible, Scripting, Storage Management
  • Level: senior
  • Type: full_time

Hut 8

Hut 8 is on a mission to build and operate some of the world’s largest data centers for next-generation computing workloads, including AI, Colocation, Cloud, a…

Network Architect I, II

Toronto

  • Skills: network infrastructure, MPLS, BGP, VLANs, data center, Network Security, IP carrier grade, network automation, Python, troubleshooting
  • Level: mid
  • Type: full_time

Bounteous

Bounteous is a premier end-to-end digital transformation consultancy dedicated to partnering with ambitious brands to create digital solutions for today’s comp…

z/OS System Programming Engineer

Toronto

  • Skills: z/OS, information security, data protection, catalog management, troubleshooting, USS/OMVS, REXX, testing, zOSMF, Python
  • Level: senior
  • Type: full_time

Rogers Communications

Rogers Communications is a leading telecommunications company in Canada, providing connectivity and technology solutions to millions of Canadians.

Cloud Network Engineer

Brampton

  • Skills: Cloud Networking, AWS, Telecommunications, Network Security, BGP, Automation, Terraform, Ansible, Hybrid Cloud, 5G
  • Level: mid
  • Type: full_time

Manitoulin Transport

Manitoulin Transport has the most extensive transportation network in North America, making it easy to provide dependable on-time delivery and faster transit t…

iSeries System Administrator

Mississauga

  • Skills: IBM i-Series, AS400, CL programming, RPG programming, DB2, iSeries Security, IBM i Access Client Solutions, Service Tools, Linux servers, network protocols
  • Level: mid
  • Type: full_time

Rogers Communications

Our Technology team wakes up every day with one goal in mind - connecting Canadians to the people and things that matter most. Together, we are proud to suppor…

Sr. SRE Specialist DNS & DHCP

Brampton

  • Skills: DNS, DHCP, Bash, Python, Cisco, GPON, Network Security, Linux, Infoblox, TCP/IP
  • Level: mid
  • Type: full_time

PXO

PXO creates industry-leading Virtual Production and Visual Effects for premium Film and Episodic content. With over 20 industry awards and nominations, PXO, a …

IT Security Administrator

Toronto

  • Skills: IT Security, compliance, vulnerability management, incident response, Microsoft O365, data protection, GDPR, security auditing, Zero Trust architecture, Disaster Recovery
  • Level: mid
  • Type: full_time

Clutch

Clutch is Canada’s largest online used car retailer, delivering a seamless, hassle-free car-buying experience to drivers everywhere. Customers can browse hundr…

IT Professional

Toronto

  • Skills: IT support, systems administration, networking fundamentals, UniFi, MDM tools, Windows, macOS, hardware lifecycle, process development, customer-first
  • Level: senior
  • Type: full_time

Canonical

Canonical is the publisher of Ubuntu, the world's most popular open-source operating system, and offers enterprise-grade support and expertise.

MAAS Data Center Infrastructure Engineer

Toronto

  • Skills: Data Center, MAAS, Infrastructure, Cloud Computing, OpenStack, Linux, Network Management, Automation, Provisioning, Virtualization
  • Level: mid
  • Type: full_time

Tenstorrent

Tenstorrent is leading the industry on cutting-edge AI technology, revolutionizing performance expectations, ease of use, and cost efficiency. Our diverse team…

Sr. Engineer, SysOps

Toronto

  • Skills: AI datacenter, high-performance compute, RISC-V CPU, cluster management, engineering, architecture, data center operations, inventory management, equipment RMA, DCIM systems
  • Level: mid
  • Type: full_time

SkillStorm

SkillStorm is united in one purpose: To accelerate opportunity by wiping out the skill gap with a groundbreaking strategy for creating tech talent.

MAPS Analyst

Toronto

  • Skills: MAPS Analyst, trading system, incident management, problem solving, Linux, Windows, Perl, Python, SQL, infrastructure
  • Level: mid
  • Type: full_time

Viral Nation Inc.

At Viral Nation, we specialize in building social-first ecosystems for brands to connect with the modern consumer journey. Our integrated solutions align strat…

Systems Administrator (L2)

Toronto

  • Skills: Systems Administrator, macOS, Google Workspace, Windows, Linux, IT Infrastructure, Security Measures, User Account Management, Technical Support, IT Policies
  • Level: mid
  • Type: full_time

Scotiabank

Scotiabank is a leading bank in the Americas. Guided by our purpose: "for every future", we help our customers, their families, and their communities achieve s…

Senior Technical Analyst (Solaris/Red Hat Linux Specialist)

Toronto

  • Skills: UNIX, Red Hat Linux, Solaris, Oracle Sparc, Veritas Clustering, Ansible, Cloud, Scripting, Network File System, Disaster Recovery
  • Level: senior
  • Type: full_time

STACK IT Recruitment

At STACK IT Recruitment, we connect top technical talent with standout opportunities across Canada.

Skilled Systems Administrator

Vaughan

  • Skills: cloud, DevOps, automation, virtualization, VMware, Proxmox, Azure, networking, CI/CD, database
  • Level: mid
  • Type: other

Liebherr-Canada Ltd.

The Liebherr Group has represented leading-edge technical products and services for more than 70 years and has proudly serviced Canadian customers directly sin…

IT Operations Analyst

Burlington

  • Skills: SCCM, PowerShell, Hyper-V, Virtualization, Reporting, Active Directory, Group Policy, OS Deployment, Patch Management, Client Management
  • Level: mid
  • Type: full_time

Dexterra Group

Dexterra Group is a fast-growing, financially strong, publicly listed company (TSX:DXT). We have a far-reaching presence across the entire continent North Amer…

Network Engineer

Mississauga

  • Skills: network infrastructure, cloud networking, Azure, TCP/IP, firewalls, routing protocols, network performance, cybersecurity, disaster recovery, network monitoring
  • Level: senior
  • Type: full_time

Meta

Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Ap…

Offensive Security Engineer Red Team X

Toronto

  • Skills: Red Teaming, Penetration Testing, Cyber Threat Hunting, Networking Fundamentals, Attack Surfaces, Security Assessments, Linux, Python, Golang, Vulnerability Management
  • Level: senior
  • Type: full_time

Aiven

Aiven is a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions, with a vision to become…

Security Engineer

Toronto

  • Skills: Security Operations, Cloud Security, Incident Response, Threat Hunting, SIEM, Endpoint Detection, Infrastructure as Code, Linux Administration, Network Security, Automation
  • Level: mid
  • Type: full_time