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Added 10 mins ago
AC
Senior Estimator – Nova Scotia
Avondale Construction Ltd
Halifax, NS
- Full-time
Participate in or lead the bid close with the oversight of a more senior estimator
Added 10 mins ago
AI
Pega Lead Business Architect (LBA)
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Mississauga, ON
- Full-time
Pega Certified Senior System Architect (PSSA).
Added 10 mins ago
WI
Remediation Project Manager
WSP in Canada
Smithers, BC
- Full-time
You collaborate within a team, working alongside Project Coordinators, other Project Managers, Senior Project Directors or Technical Leads, as well as Field Technicians, Scientists, and…
Added 10 mins ago
WI
Remediation Project Manager
WSP in Canada
Smithers, BC
- Full-time
You collaborate within a team, working alongside Project Coordinators, other Project Managers, Senior Project Directors or Technical Leads, as well as Field Technicians, Scientists, and…
Added 10 mins ago
I
Senior Integration Architect-SOA
IBM
Fredericton, NB
- $135,000 to $185,000 CAD / year
- Full-time
Added 10 mins ago
WI
Vice President, Rail & Transit, Western Canada
WSP in Canada
MB · Manitoba, Canada
- Full-time
20+ years of professional experience, including senior leadership roles within the rail and transit industry.
Added 10 mins ago
WI
Vice President, Rail & Transit, Western Canada
WSP in Canada
SK · Saskatchewan, Canada
- Full-time
20+ years of professional experience, including senior leadership roles within the rail and transit industry.
Added 10 mins ago
AE
Senior Long-Term Mining Engineer, Underground
Agnico Eagle Mines Limited
Dobie, ON
- Full-time
Added 10 mins ago
ZC
Bilingual Sr Auto Claims Specialist
Zurich Canada
Montreal, QC
- Full-time
Zurich Canada is currently looking for a Senior Auto Claims Specialist to manage and resolve intermediate to complex commercial auto claims while delivering an outstanding customer…
Added 10 mins ago
SI
Maintenance Coodinator
Shannex Incorporated
Bible Hill, NS
- Full-time
Added 13 mins ago
C
Développeur(euse) Java sénior
CGI
Montreal, QC
- Full-time
CGI is seeking four Senior Java Developers to strengthen our consulting delivery teams in Montréal and Toronto. You will design, develop, modernize, integrate, and support enterprise grade…
Added 13 mins ago
WI
Remediation Project Manager
WSP in Canada
Terrace, BC
- Full-time
You collaborate within a team, working alongside Project Coordinators, other Project Managers, Senior Project Directors or Technical Leads, as well as Field Technicians, Scientists, and…
Added 13 mins ago
ZC
Bilingual Sr Auto Claims Specialist
Zurich Canada
Toronto, ON
- Full-time
Zurich Canada is currently looking for a Senior Auto Claims Specialist to manage and resolve intermediate to complex commercial auto claims while delivering an outstanding customer…
Added 13 mins ago
HC
Senior Platform Administrator (Salesforce) - ITS - FT Support
Humber College
Toronto, ON
- Full-time
Position Title: Senior Platform Administrator - Salesforce
Added 13 mins ago
UO
Education Program and Admin Assistant
University of Manitoba
Winnipeg, MB
- $48,448.4 to $66,266.2 CAD / year
- Full-time
Reporting to both the Academic Administration Lead and the Senior Administrator for the Department Head/Provincial Medical Specialty Lead, the incumbent provides comprehensive…
Added 13 mins ago
PC
Business Development Manager
Peninsula Canada
Windsor, ON
- $150,000 to $200,000 CAD / year
- Full-time
Deliver value-based, consultative sales presentations to business owners and senior decision-makers
Added 13 mins ago
WI
Senior Estimator
WSP in Canada
Brossard, QC
- Full-time
…Resources and Industry Project Controls team as a bilingual Senior Estimator. You will bring strategic cost insight to complex industrial, mining, oil and gas, and power generation projects…
Added 13 mins ago
WI
Senior Estimator
WSP in Canada
Montreal, QC
- Full-time
…Resources and Industry Project Controls team as a bilingual Senior Estimator. You will bring strategic cost insight to complex industrial, mining, oil and gas, and power generation projects…
Added 13 mins ago
CL
Facilities Management Senior Specialist - Canada(591283)
CEVA Logistics
Mississauga, ON
- Full-time
Added 13 mins ago
TB
Senior Web & Digital Designer
The BMI Group
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We’re looking for a Senior Web & Digital Designer to lead the design of digital experiences across BMI Group and its growing portfolio of businesses and ventures.
Added 13 mins ago
OI
Sales Representative (Home, Auto & Lifestyle) - 12-month contract
Orbit Insurance Services
Waterloo, ON
- Contract
Reporting to the Senior Manager, Sales for the Ontario Region, you will handle inbound calls from customers seeking quotes or looking to expand their coverage. Your role is to uncover…
Added 13 mins ago
WI
Senior Estimator
WSP in Canada
Quebec, QC
- Full-time
…Resources and Industry Project Controls team as a bilingual Senior Estimator. You will bring strategic cost insight to complex industrial, mining, oil and gas, and power generation projects…
Added 13 mins ago
I
Senior Integration Architect-SOA
IBM
Hamilton, ON
- $135,000 to $185,000 CAD / year
- Full-time
Added 13 mins ago
BC
Site Superintendent
Bre-Ex Construction Inc.
London, ON
- $130,000 to $140,000 CAD / year
- Full-time
5-10 years of heavy civil construction experience, with significant time in a senior foreman or superintendent role
Added 13 mins ago
IG
Certification Auditor
Insight Global
Guelph, ON
- Full-time
…design and reporting of operational efficiencies of controls to senior management. You are a key resource to the development of test plans and an expert in the configuration and operation…

OnX

Sr. Engineer Network Administration

Toronto, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Nov 5, 2026
Posting language: English
Posted: Oct 6, 2026

Original job description

OnX is a leading Canadian technology solutions provider helping organizations modernize, secure, and optimize their IT environments. We partner with clients across industries to deliver innovative infrastructure, cloud, security, and managed services solutions that drive business success.

About the Role

We are seeking a highly skilled Senior Engineer - Network Administration to join our Infrastructure Management team. In this role, you will be responsible for designing, administering, supporting, and optimizing enterprise network environments that enable secure, resilient, and high-performing business operations.

You will work across LAN, WAN, wireless, firewall, VPN, and cloud-connected environments while partnering with infrastructure, security, service delivery, and operational teams to ensure network stability, performance, and compliance

What You'll Do

Administer, monitor, and maintain enterprise network infrastructure across multiple locations.
Configure and support routers, switches, firewalls, VPNs, wireless controllers, and load balancers.
Perform network troubleshooting, incident management, and root cause analysis for complex issues.
Implement network upgrades, patching, configuration changes, and infrastructure improvements through established change management processes.
Monitor bandwidth utilization, network performance, latency, packet loss, and capacity utilization.
Collaborate with IT Security, NOC, infrastructure teams, vendors, and service providers to resolve issues and enhance service delivery.
Support network resilience initiatives including failover testing, backup validation, disaster recovery readiness, and security hardening.
Maintain accurate network documentation including diagrams, inventories, SOPs, and operational procedures.
Ensure compliance with security policies, audit requirements, and operational standards.
Mentor junior engineers and contribute to continuous improvement and automation initiatives.

Required Qualifications

Experience

6-8 years of experience in Network Administration, Network Engineering, or Infrastructure Support.
Minimum 5+ years of hands-on experience managing enterprise networking environments.
Strong experience supporting mission-critical network infrastructure in a corporate or managed services environment.

Technical Skills

Must Have:

Cisco Routing & Switching
Cisco Data Networking
Palo Alto Firewalls
Cisco ASA Firewalls
ITIL-based operational practices
LAN/WAN Administration
Network Monitoring & Troubleshooting
Firewall Management
Routing & Switching Technologies
TCP/IP, VPN, DNS, DHCP, and Network Security Fundamentals

Preferred Skills:

Cisco SD-WAN (Viptela)
Cisco Data Center Networking
Cisco Proxy Solutions
Cisco Load Balancers
Linux Networking
Prisma Cloud
SolarWinds Monitoring Solutions
High Availability and Disaster Recovery Networking

Education

Bachelor's Degree in Engineering, Computer Science, Information Technology, Electronics, Telecommunications, or a related field.
Relevant networking certifications such as CCNA, CCNP, Palo Alto Certifications, ITIL, or equivalent are highly preferred.

Success in This Role

The ideal candidate will demonstrate:

Strong analytical and troubleshooting skills.
Excellent communication and stakeholder management abilities.
A proactive, ownership-driven mindset.
Experience working within SLA-driven environments.
Ability to balance operational excellence with continuous improvement initiatives.
Strong collaboration skills across cross-functional technical teams

Why Join Us?

Join a technology services organization that specializes in cloud, networking, and security solutions across managed and professional services. We foster a collaborative, growth-oriented environment where innovation, learning, and career development are highly valued. You'll have the opportunity to work with enterprise-scale technologies while contributing to meaningful business outcomes

$50,000 – $90,000 base salary (not including bonus or commission)

“The compensation range in this posting reflects the Company’s good‑faith estimate at the time of publication. The applicable base pay range for any individual will be determined based on the candidate’s designated primary work location as well as factors including role scope and responsibilities, required qualifications, and the individual’s experience, education, skills, knowledge, and performance. Certain positions may also be eligible for additional compensation such as discretionary merit increases, bonuses, or sales‑based variable compensation in accordance with applicable plans and role requirements.

Diversity & Inclusion

OnX is an equal opportunity employer committed to creating an inclusive environment for all employees. We celebrate diversity and are dedicated to fostering a workplace where everyone can thrive regardless of race, religion, gender, age, disability, sexual orientation, or any other protected characteristic.

Apply About employer

More about this job

Responsibilities

Administer, monitor, troubleshoot, and optimize enterprise network infrastructure, including LAN, WAN, wireless, firewalls, VPNs, and load balancers. Implement network changes and resilience measures, maintain documentation and compliance, collaborate across technical teams, and mentor junior engineers.

Requirements

Requires 6–8 years of network administration, engineering, or infrastructure support experience, including at least 5 years managing enterprise networks. A relevant bachelor's degree is specified, and networking or ITIL certifications are highly preferred; strong troubleshooting, communication, collaboration, and SLA-driven operations experience are also sought.

Skills

Cisco Routing And Switching
Cisco Data Networking
Palo Alto Firewalls
Cisco ASA Firewalls
ITIL Operational Practices
LAN/WAN Administration
Network Monitoring And Troubleshooting
Firewall Management
TCP/IP
VPN
DNS
DHCP
Cisco SD-WAN
Cisco Data Center Networking
SolarWinds
High Availability And Disaster Recovery

Visa sponsorship

Not detected in the job text

Keywords

Enterprise Networking
Network Administration
Network Engineering
Cisco Routing And Switching
Cisco Data Networking
Palo Alto Firewalls
Cisco ASA Firewalls
Cisco SD-WAN (Viptela)
Cisco Data Center Networking
Cisco Proxy Solutions
Cisco Load Balancers
Prisma Cloud
SolarWinds
LAN
WAN
Wireless Networking
VPN
TCP/IP
DNS
DHCP
Network Security
ITIL
Incident Management
Root Cause Analysis
Change Management
Disaster Recovery
High Availability
Network Monitoring
CCNA
CCNP

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