Last updated: 2025-11-09
20 It Systems Administration jobs in Mississauga.
American Iron & Metal (AIM)
American Iron & Metal (AIM) is a family-owned company and recognized global leader in the metal recycling industry with more than 125 sites and 4000 employees …
Hamilton
- Skills: IT support, Windows 11, Microsoft 365, Azure, Intune, active directory, cybersecurity, network fundamentals, Cisco switches, SolarWinds
- Level: mid
- Type: full_time
Rogers Communications
Rogers Communications is a leading telecommunications company in Canada, providing connectivity and technology solutions to millions of Canadians.
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…
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…
Brampton
- Skills: DNS, DHCP, Bash, Python, Cisco, GPON, Network Security, Linux, Infoblox, TCP/IP
- Level: mid
- Type: full_time
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…
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…
Mississauga
- Skills: network infrastructure, cloud networking, Azure, TCP/IP, firewalls, routing protocols, network performance, cybersecurity, disaster recovery, network monitoring
- Level: senior
- Type: full_time
Magnet Forensics
Magnet Forensics is a global leader in the development of digital investigative software that acquires, analyzes, and shares evidence from computers, smartphon…
Hamilton
- Skills: Information Security, Security Incident Management, Vulnerability Assessment, Penetration Testing, CISSP, Networking Principles, SaaS, Firewalls, EDR, ITIL
- Level: intern
- Type: internship
Halton Healthcare
Halton Healthcare’s vision of Exemplary patient experiences, always, goes beyond just the patient experience; it has shaped our entire culture and remains at t…
Oakville
- Skills: Service Desk, Active Directory, inTune, SCCM, VMware, VDI Images, security incidents, technical leadership, incident resolution, documentation
- Level: mid
- Type: full_time
Mattamy Asset Management
Mattamy Asset Management (MAM) is the parent company of Mattamy Homes Canada and Mattamy Homes U.S., which together make up the largest family-owned homebuildi…
Mississauga
- Skills: Infrastructure design, VLAN solutions, SAN implementation, PowerShell, Python, Bash, Windows Server, Active Directory, Microsoft Exchange, Virtualization
- Level: mid
- Type: full_time
Cognizant
Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. …
Mississauga
- Skills: IT Infrastructure, Network Engineer, LAN, WAN, SD-WAN, VPN, cloud connectivity, network documentation, F5 BIG-IP, network virtualization
- Level: mid
- Type: full_time
Canonical
Canonical is a pioneering tech firm at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open so…
Mississauga
- Skills: Linux troubleshooting, open source, cloud computing, networking, programming, technical support, Ubuntu, data science, AI, IoT
- Level: entry
- 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…
Mississauga
- Skills: IT support, system administration, networking fundamentals, Windows environment, macOS environment, MDM tools, asset management, troubleshooting, customer-first mindset, process improvement
- Level: mid
- Type: full_time
kubra
Mississauga
- Skills: infrastructure, Windows, AlmaLinux, AWS, automation, monitoring, incident response, PCI, SOC 2, operational excellence
- Level: mid
- Type: full_time
Geotab
Geotab ® is a global leader in IoT and connected transportation and certified “Great Place to Work™.” We are a company of diverse and talented individuals who …
Oakville
- Skills: Cloud Platforms, Google Cloud, AWS, Linux, Active Directory, Zero Trust Architecture, Powershell, Python, Bash, Scripting
- Level: mid
- Type: full_time