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Added 11 mins ago
M
Data Specialist
McKesson
Mississauga, ON
- Full-time
…healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of…
Added 11 mins ago
Software Engineer (Python/SQL)
Scotiabank
Toronto, ON
We are seeking a highly skilled Software Engineer to design, develop, and support enterprise applications and data platforms. The role requires strong hands-on expertise in software…
Added 25 mins ago
EI
Project Manager, Senior Civil Engineer - Land Development
Egis in Canada
Ottawa, ON
- $115,000 to $140,000 CAD / year
- Full-time
…provide an all-encompassing approach and a comprehensive array of services. Whether it's crafting commercial plans or orchestrating urban subdivisions, we strive to uncover optimal…
Added 26 mins ago
Q
Engineer in Training - Protection & Control
Qualus
Vancouver, BC
- Full-time
…solutions, program management, energy efficiency and specialized field services. Qualus also provides software and technology enabled services and develops breakthrough solutions for…
Added 26 mins ago
E
Full Stack Engineer, SE3
eBay
Toronto, ON
- Full-time
We are seeking a Full Stack Engineer with to help redefine and elevate the Goldin platform. In this role, you’ll work across the stack, collaborating with high-velocity teams to design,…
Added 41 mins ago
EG
Civil Engineer, Land Development
Egis Group
AB · Edmonton, Alberta
- $85,000 to $115,000 CAD / year
- Full-time
…provide an all-encompassing approach and a comprehensive array of services. Orchestrating urban residential and industrial subdivisions, and delivering multi-family site project success ,…
Added 54 mins ago
LI
Senior AWS SageMaker Engineer
LanceSoft, Inc.
Toronto, ON
- $50 to $55 CAD / hour
- Contract
Strong hands-on experience with AWS cloud services
Added 54 mins ago
O
Sr. Engineer Network Administration
OnX
Toronto, ON
- Full-time
…deliver innovative infrastructure, cloud, security, and managed services solutions that drive business…
Added 54 mins ago
RC
MLOps Engineer
Realtek Consulting LLC
Toronto, ON
- Contract
Job Title: Senior AWS SageMaker / MLOps Engineer
Added 54 mins ago
A
Software Development Engineer in Test (SDET) - Automotive
Actalent
Waterloo, ON
- $75,000 to $100,000 CAD / year
- Full-time
Actalent is a global leader in engineering services and human capital solutions. Our Canadian operations continue to grow and we are actively looking for Software Development Engineers in…
Added 54 mins ago
EI
Civil Engineer, Land Development
Egis in Canada
AB · Edmonton, AB
- $85,000 to $115,000 CAD / year
- Full-time
…provide an all-encompassing approach and a comprehensive array of services. Orchestrating urban residential and industrial subdivisions, and delivering multi-family site project success ,…
Added 1 hour ago
F
Webber - Field Engineer - Infrastructure Management
Ferrovial
Ottawa, ON · CAN - Webber - Infra - Ottawa
- Full-time
…partnership (P3) solutions. Webber also has an in-house engineering services department to help optimize building efficiency and quality while solving complex project challenges using field…
Added 1 hour ago
A
Senior Mechanical Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
The Senior Mechanical Engineer will support refurbishment, retube, field services, and new-build nuclear projects. This role combines design engineering expertise with field execution…
Added 1 hour ago
VD
Data Center Solutions Architect - Sales Engineer
Vantage Data Centers
Montreal, QC · Quebec, QC
- Full-time
Evaluate and recommend technologies, products, and services that align with client needs and industry standard methodologies.
Added 1 hour ago
AI
Software Architect
Arkion Identity Systems
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…collaborate with development engineers, the cloud & deployment engineer, and external partners to drive architectural decisions and ensure a robust, scalable, and secure product. You will…
Added 1 hour ago
TH
Metallurgical Tech. 185331UO
The Heico Companies LLC
L'Orignal, ON
- Full-time
Upon request, under the guidance of the Metallurgical Engineer/Supervisor Met. Services, investigate root cause of defects in the product failed in the field; prepares detailed…
Added 1 hour ago
Temporary works design specialist (future opportunity)
Aecon
Fredericton, NB
Ensure you and your family receive the services and benefits needed to support your mental, emotional, and physical well-being.
Added 1 hour ago
Développeur(-euse) logiciel – Intégration / Backfill Integration Developer – Canada (Montreal)
mthree Recruiting Portal
Montreal, QC
As a software integration engineer, you will contribute to the integration, deployment, and support of critical technology systems and services used by trading and risk management teams…
Added 1 hour ago
Automation Engineer
LAPORTE L.E.I.
Calgary, AB · AB · Lethbridge, AB · Vancouver, BC
LAPORTE is a consulting engineering firm providing high-value engineering services to the pharmaceutical, food and beverage, industrial biotechnology, and industrial manufacturing sectors,…
Added 1 hour ago
OP
Electrical, Plant Engineer/Officer
Ontario Power Generation
Timmins, ON
- Full-time
Ontario Power Generation (OPG) is looking for a dynamic, strategic and results-driven professional to join our team in the role of Electrical, Plant Engineer/Officer.
Added 1 hour ago
O
Project Manager, Track Works
ONxpress
Toronto, ON
- Full-time
Manage multidisciplinary teams, subcontractors, suppliers, and field crews working in live rail, possession, closure, and greenfield environments.
Added 2 hours ago
E
IP Network Engineer
ELITS
Mississauga, ON
- Full-time
We are seeking an experienced engineer to plan, design, integrate, optimize, and troubleshoot Internet Protocol (IP) transport and backhaul networks that support Radio Access Network (RAN)…
Added 2 hours ago
RB
Senior Director, Program Delivery
Royal Bank of Canada
Toronto, ON
- Full-time
Added 2 hours ago
NN
Bilingual Network Engineer
Nova Networks
Montreal, QC
- $45,000 to $95,000 CAD / year
- Full-time
As a Bilingual Network Engineer at NOVA Networks you will have primary responsibility for the analysis, design, planning, and implementation of various network systems including routers,…
Added 6 hours ago
AM
Systems Validation Engineer - Data Center GPU
Advanced Micro Devices, Inc
Markham, ON
- Full-time
As a Systems Validation Engineer within the Datacenter and GPU Accelerated Processing division, you will execute on SOC and system/rack level validation, triage and debug for the AMD Data…

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 7, 2026
Posting language: English
Posted: Oct 8, 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 across LAN, WAN, wireless, firewall, VPN, and cloud-connected environments. Implement network changes and resilience improvements, maintain documentation and compliance, collaborate with technical teams and vendors, 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 bachelor's degree in a related field is specified, with networking or ITIL certifications preferred; strong Cisco and firewall expertise, troubleshooting ability, and experience in SLA-driven environments 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
Network Troubleshooting
Firewall Management
TCP/IP
VPN
DNS
DHCP
Cisco SD-WAN
SolarWinds
Disaster Recovery Networking

Visa sponsorship

Not detected in the job text

Keywords

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

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