Network administrator jobs in Toronto, ON and nearby (163 jobs)

Network administrator jobs within 25 km of Toronto, ON, Canada. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Counted Nov 8, 2026

Hiring at a glance

View jobs

Open jobs: 163
Employers: 117

Advertised starting pay

Average starting payCAD / year: $91,858Across 28 listings
Average starting payCAD / hour: $51.44Across 11 listings

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote: 0%0 listings
Hybrid: 34%56 listings
On-site: 66%107 listings

Employers hiring include S M Software Solutions Inc (8), STACK IT Recruitment (5), Michael Page (4).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

Network administrator jobs in Toronto, ON and nearby

Within 25 km

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Added 1 month ago
C
Senior Systems & Network Administrator (Windows, Linux, Cisco & F5)
CGI
Toronto, ON
- Full-time
We are seeking a highly skilled Senior Systems & Network Administrator to join our Infrastructure & Operations team. This role is responsible for the administration, maintenance,…
Added 1 month ago
FB
Sr. System Administrator
FGF Brands
Toronto, ON
- Full-time
Reporting to the Manager, IT Infrastructure, the Senior Systems Administrator will be responsible for the configuration, implementation, and maintenance of computer technologies maintained…
Added 1 month ago
FB
System Administrator
fgf brands
Toronto, ON
- Other
Reporting to the Manager, IT Infrastructure, the Senior Systems Administrator will be responsible for the configuration, implementation, and maintenance of computer technologies maintained…
Added 1 month ago
MR
Linux System Administrator/ Business Operations
Motion Recruitment
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
An established financial services organization is seeking a Linux Systems Administrator to help drive the reliability, security, and modernization of a large-scale enterprise Linux platform…
Added 1 month ago
CS
computer network technician
Condor Security Inc.
Toronto, ON
- Full-time
Added 1 month ago
RB
Lead System Administrator
Royal Bank of Canada
Toronto, ON
- Full-time
…issues within the RBC supported solution. The Lead Application Administrator will support one to many applications and the associated technical environment. An expert knowledge of…
Added 1 month ago
MH
System Administrator (ECSA)
Mackenzie Health
Vaughan, ON
- $51.04 to $60.61 CAD / hour
- Full-time
As part of the larger ICAT team, the System Administrator – Enterprise Systems works under indirect supervision participating in effective provisioning, installation/configuration,…
Added 1 month ago
TS
Network system administrator
T&T Supermarket
Vaughan, ON
- Full-time
Added 1 month ago
C
Systems Administrator (Backup / Infrastructure)
CGI
Toronto, ON
- Full-time
We are looking for a Systems Administrator (Backup / Infrastructure) to join our IT Operations team. In this role, you will hold end to end ownership of our enterprise wide data protection,…
Added 1 month ago
Scheduling Systems Administrator
March of Dimes Canada
Toronto, ON
Added 1 month ago
Scheduling Systems Administrator
March of Dimes Canada
Toronto, ON
Added 1 month ago
SE
Senior Systems Administrator
S&C Electric Company
Toronto, ON
- Full-time
Added 1 month ago
RDL Network Administrator
Celestica International LP
Toronto, ON
We are seeking a proactive and detail-oriented RDL Network Administrator to manage the day-to-day operations and administration of our global Research and Development Lab (RDL) networks.…
Added 1 month ago
C
RDL Network Administrator
Celestica
Toronto, ON
- Full-time
We are seeking a proactive and detail-oriented RDL Network Administrator to manage the day-to-day operations and administration of our global Research and Development Lab (RDL) networks.…
Added 1 month ago
HC
Learning Management System Administrator - Digital Learning - PNRK
Humber College
Toronto, ON
- Internship
Added 1 month ago
CB
Financial Systems Administrator
Cassels Brock & Blackwell LLP
Toronto, ON
- Full-time
Added 1 month ago
PG
Senior Systems Administrator – M365 & Infrastructure
Perseus Group, Constellation Software
Markham, ON
- Full-time
Constellation HomeBuilder Systems is seeking a Senior Systems Administrator / M365 & Infrastructure Administrator to join our Information Technology team in Markham, Ontario.
Added 1 month ago
PX
Consultant, IT Systems Administrator (Airflow/Snowflake)
Project X Ltd.
Toronto, ON
- Full-time
Added 1 month ago
R
IT Systems Administrator
Rightsline
Toronto, ON
- $65,000 to $70,000 CAD / year
- Full-time
Added 1 month ago
H
Senior ERP Systems Administrator
Hays
Mississauga, ON
- Full-time
Added 1 month ago
EL
Systems Administrator
Eckler Ltd. / Eckler ltée
Toronto, ON
- $82,000 to $95,000 CAD / year
- Full-time
Reporting to the Senior Infrastructure Engineer, the Systems Administrator supports the security, reliability, performance, and continuous improvement of Eckler’s hybrid technology…
Added 1 month ago
OV
Systems Administrator, Information Technology - Full Time - Markham Stouffville Hospital
Oak Valley Health
Markham, ON
- Full-time
Added 1 month ago
PX
Consultant, IT Systems Administrator (Airflow/Snowflake)
Project X
Toronto, ON
- Full-time
Added 1 month ago
Principal Systems Administrator
Open Text Corporation
Richmond Hill, ON
Added 1 month ago
Lead Systems Administrator
Open Text Corporation
Richmond Hill, ON

Celestica

RDL Network Administrator

Toronto, ON, Canada

Salary + Short Term Incentive = 109,000.00 - 173,000.00 (CAD) · Full-time

Apply About employer

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Job details

Pay: Salary + Short Term Incentive = 109,000.00 - 173,000.00 (CAD)
Job type: Full-time
Experience: 10+ years of experience in network administration or system administration, preferably managing secure, segmented, or laboratory networks.
Posting language: English
Posted: Sep 29, 2026

Original job description

Summary

We are seeking a proactive and detail-oriented RDL Network Administrator to manage the day-to-day operations and administration of our global Research and Development Lab (RDL) networks. Reporting directly to the Lead Network Architect, you will be responsible for the run-and-maintain aspects of our isolated, air-gapped networks across multiple HPS Design Center locations (including San Jose, Richardson, Thailand, Shanghai, SongShan Lake, Penang, Chennai, and future sites).

The ideal candidate will handle routing, switching, and firewall adjustments, manage user access, configure local jump hosts, and execute secure file transfers across air gaps. Since this environment operates under strict security isolation without typical enterprise automated management tools (e.g., Active Directory, automated endpoint agents), this role requires a hands-on, highly disciplined administrator who excels at executing manual and semi-automated workflows securely and consistently.

Core Responsibilities

Daily Network Operations & Maintenance

Infrastructure Monitoring: Monitor the health, performance, and uptime of all RDL hardware, including Checkpoint 3980 Firewalls, SilverPeak SD-WAN appliances, Cisco Catalyst 9400/9200 switches, and Celestica DS2000/ES1500 switches.
Configuration Management: Implement localized VLAN adjustments, IP address allocations, and switch port provisioning to isolate multi-tenant projects as directed by the Network Architect.
Routine Maintenance: Execute hardware diagnostics, physical cabling checks, and firmware/OS updates across network and server appliances following strict maintenance window guidelines.

Identity & Secure Access Administration

User Onboarding & Management: Provision local user accounts and role-based permissions directly on Linux-based jump hosts. Manage access credentials in a strict, decentralized non-Active Directory environment.
Remote Session Administration: Administer daily customer connections using CyberArk vPAM (Virtual Privileged Access Management) and internal user access using Zscaler ZTNA/Zscaler App Connectors.
Security Audits: Review, audit, and clean up inactive user sessions and local accounts weekly to maintain strict security posture.

Data Transfer & Repository Sync Operations

Multi-Tier Sync Execution: Execute and monitor the secure transfer of "transfer bundles" containing OS packages (Rocky Linux, Ubuntu, CentOS, etc.), drivers, and software libraries across the air gap.
Local Repo Hosting: Ensure local web repositories (Apache/Nginx hosted at /var/www/html/repo/) are operational, indexed, and accessible to local lab systems.
Integrity Validation: Verify the cryptographic hashes (SHA-256 checksums) of all data packages moving from the Global Repository Server to the RDL Local Repository Server.

Support Ticket Resolution & SLA Adherence

End-User Support: Act as the primary technical point of contact for HPS design engineers needing network troubleshooting, IP conflicts resolved, or new package requests.
Ticketing Operations: Process, update, and resolve secure lab support tickets in accordance with established Service Level Agreements (SLAs).
Escalation Point: Identify complex network issues or design deviation requests and escalate them directly to the Lead Network Architect.

Compliance & Clean Environment Enforcement

Software Auditing: Conduct regular logical audits of systems within the RDL to ensure strictly banned corporate agents (e.g., CrowdStrike, Threat Locker, Big Fix, ServiceNow Agents, ClearPass NAC) are not installed.
Asset Tracking: Maintain a flawless inventory of all HPS-owned assets inside the RDL physical rooms, including servers, switches, wireless access points (Aruba 755), and connected lab machines.

Knowledge/Skills/Competencies

Required Technical Skills:

Network & Security Hardware: Practical experience configuring and troubleshooting Cisco switches (Catalyst/Nexus) and administering Checkpoint Firewalls (defining security rules, NAT, and logs).
Linux System Administration: Mid-to-senior level competency in Linux (Rocky, CentOS, Ubuntu) - specifically user management, bash scripting, basic routing, and running local web servers (Apache/Nginx).
Access Tools: Experience working with remote access tools such as Zscaler ZTNA / App Connectors and Privilege Access Management solutions (specifically CyberArk).
Virtualization Basics: Solid experience administering VMs, clusters, and virtual switches within VMware vSphere or Microsoft Hyper-V environments.
Air-Gap Protocols: Working knowledge of secure file transfer protocols (SFTP, SCP, rsync) and security scanning methodologies.Preferred

Certifications:

CCNA (Cisco Certified Network Associate)
Check Point Certified Security Administrator (CCSA)
CompTIA Security+ or Linux+
CyberArk Certified Trustee or Defender

Soft Skills & Working Style:

High Operational Discipline: Ability to strictly adhere to Standard Operating Procedures (SOPs) without cutting corners, even during urgent troubleshooting.
Excellent Communicator: Strong written and verbal communication skills, necessary for translating technical issues to designers and coordinating with corporate security teams.
Multi-Tasker: Capable of balancing ticket requests from multiple global labs concurrently while maintaining accurate records.

Physical Demands

Duties of this position are performed in a normal office environment.
Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data. Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.

Salary

The stated range includes Base Salary and target Short-Term Incentive (STI) compensation only. A comprehensive benefits package is offered in addition to this range.

The range described in this posting is an estimate by the Company, and may change based on several factors, including but not limited to a change in the duties covered by the job posting, or the credentials, experience or geographic jurisdiction of the successful candidate.

Salary + Short Term Incentive = 109,000.00 - 173,000.00 (CAD)

Education & Experience

Bachelor’s degree in Network Administration, Information Technology, Computer Science, or equivalent hands-on experience.
10+ years of experience in network administration or system administration, preferably managing secure, segmented, or laboratory networks.

Notes

This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time.

Apply About employer

More about this job

Responsibilities

Administer and maintain isolated R&D lab networks across global sites, including network hardware, routing, switching, firewalls, user access, and local repositories. Execute secure air-gap data transfers, resolve support tickets, maintain asset records, and enforce security and compliance procedures.

Requirements

Requires a bachelor’s degree in a relevant field or equivalent hands-on experience, along with 10 or more years of network or system administration experience. Candidates should have strong Linux, Cisco, Check Point, secure access, virtualization, and air-gap transfer skills, with disciplined adherence to procedures and effective communication.

Skills

Network Administration
Cisco Switching
Checkpoint Firewall Administration
Linux System Administration
User and Access Management
CyberArk
Zscaler ZTNA
VLAN Configuration
IP Address Management
Bash Scripting
Secure File Transfer
VMware vSphere
Microsoft Hyper-V
Apache and Nginx
Security Auditing
Network Troubleshooting

Visa sponsorship

Not detected in the job text

Keywords

R&D Lab Networks
Air-Gapped Networks
Cisco Catalyst
Cisco Nexus
Check Point Firewalls
SilverPeak SD-WAN
Celestica Switches
VLANs
IP Address Allocation
Linux
Rocky Linux
Ubuntu
CentOS
Bash Scripting
CyberArk vPAM
Zscaler ZTNA
Zscaler App Connectors
VMware vSphere
Microsoft Hyper-V
SFTP
SCP
Rsync
Apache
Nginx
SHA-256
Security Auditing
CCNA
Check Point CCSA
CompTIA Security+
Linux+

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