Find work in Canada.

321,951 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 5 mins ago
TM
Senior Maintenance Engineer
The Mosaic Company
Esterhazy, SK
- Full-time
The Maintenance Engineer provides in depth support for plant facilities mechanical or electrical systems (rotating and stationary) to increase the facility's overall reliability. Tasks…
Added 5 mins ago
TR
3rd Class Power Engineer
Teck Resources Limited
Trail, BC
- $45.56 to $50.41 CAD / hour
- Full-time
Teck Resources Limited is looking for a motivated and fully certified Third Class Power Engineer at our Trail Operations. Reporting to the Shift Leader, the Power Engineer is responsible…
Added 5 mins ago
C
Geotechnical Engineer ***Signing Bonus May Apply***
CPKC
Toronto, ON
- Full-time
Becoming a qualified conductor or locomotive engineer is the single best way for a management employee to learn the business at CPKC. You may be required to obtain a certification or to…
Added 5 mins ago
C
Geotechnical Engineer ***Signing Bonus May Apply***
CPKC
Calgary, AB
- Full-time
Becoming a qualified conductor or locomotive engineer is the single best way for a management employee to learn the business at CPKC. You may be required to obtain a certification or to…
Added 22 mins ago
B
Power Engineer - 4th Class
BGIS
Devon, AB
- Full-time
The Power Engineer/Building Technician is responsible for operating the facility including, but not limited to mechanical other supporting systems; performing structured inspections,…
Added 35 mins ago
NC
Engineer, Civil/Structural
Newmont Corporation
Vancouver, BC
- Full-time
Act as Engineer of Record (EoR) for assigned scopes, ensuring compliance with professional engineering standards, applicable codes, EGBC requirements, and engineering governance processes.
Added 35 mins ago
IG
Quality Assurance Supervisor
IMT Group
Port Colborne, ON
- $65,000 to $85,000 CAD / year
- Full-time
Added 35 mins ago
B
Senior Combat Systems Engineer/Specialist
BMT
Dartmouth, NS
- $105,000 to $150,000 CAD / year
- Full-time
Job Title: Senior Combat Systems Engineer/Specialist
Added 35 mins ago
DC
Construction Supervisor
DDI Canada Investment Management Ltd.
Halifax, NS
- Full-time
Work with the engineer of record, geotechnical and testing consultants, and municipal and Halifax Water inspectors, and keep inspection and testing records current
Added 35 mins ago
VS
IAM Engineer - PingFed
VySystems Singapore
Toronto, ON
- Contract
IAM Engineer – Java/Python to support with Single Sign On implementations, Employee PingFed
Added 35 mins ago
TI
Sr. Analytics Developer
Techtronic Industries Canada Inc.
Toronto, ON
- Full-time
Collaborate with the Data Engineer to ensure seamless integration between pipelines and reports.
Added 51 mins ago
Bilingual Data Engineer
CMHC - SCHL
Ottawa, ON · Montreal, QC
Join CMHC’s Information Technology team, in the Bilingual Data Engineer position. You will design, build and support reliable data pipelines and reusable data assets on Azure and…
Added 51 mins ago
E
Site Project Manager
Ecolab
Calgary, AB · CAN-Calgary Office Quarry Park
- Full-time
The Site Project Manager directs the Site Lead and Crew Leads as applicable to lead execution. The Project Engineer retains technical authority for commissioning methods, technical…
Added 1 hour ago
CE
Senior Electrical Engineer, Traffic Signals Team Lead
Colm Engineering Ltd
Hamilton, ON
- Full-time
Final approver and signing engineer on all drawings, reports and customer facing material as per PEO
Added 1 hour ago
E
Environmental Field Technician
Englobe
Toronto, ON · Etobicoke, ON
- Full-time
Added 1 hour ago
AE
Mine Planning Engineer, Operational Growth
Agnico Eagle Mines Limited
Sudbury, ON · Greater Sudbury, ON
- Full-time
Added 1 hour ago
T
Intermediate Software Engineer (Agentic AI Verification)
Trulioo
Vancouver, BC
- Full-time
Reporting to the Senior Director, Engineering, the Intermediate Software Engineer will be responsible for building and hardening Trulioo's Agentic AI Verification capabilities, taking…
Added 1 hour ago
Aircraft Maintenance Engineer - Calgary
WestJet Group
Calgary, AB
Looking for the ideal aviation career? Join our highly skilled team as an Aircraft Maintenance Engineer and contribute to the safe and efficient daily maintenance on our fleet of aircraft-…
Added 1 hour ago
V
DevOps Engineer
Varonis
Vancouver, BC
- Full-time
The Company: Varonis (Nasdaq: VRNS) is a leader in data security, fighting a different battle than conventional cybersecurity companies. Our cloud-native Data Security Platform continuously…
Added 1 hour ago
LT
Automation and Build Developer II
LMI Technologies
Burnaby, BC
- Full-time
Join our Software Operations team as a Build & Test Automation Engineer and become the engine behind how our code gets from a developer's keyboard to a sensor on that line.
Added 1 hour ago
Co-op/Intern - Environmental Engineer
Gerdau
Selkirk, MB
Added 1 hour ago
SL
Associate Software Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto One York
- Full-time
…technology. We're looking for a talented Associate Software Engineer- .NET to own meaningful projects that drive real impact for our clients' financial security and wellbeing. You will have…
Added 1 hour ago
HS
Mechanical Field Engineer / Project Engineer - Construction
HUB Services inc.
ON · Ontario, Canada
- Full-time
As a Mechanical Field Engineer – Construction, you will play a key role in the technical delivery and execution of major industrial projects. Deployed to a mining environment in Northern…
Added 1 hour ago
A
HSE Advisor
AtkinsRéalis
Toronto, ON
- Full-time
…committed to leading our clients across our various end markets to engineer a better future for our planet and its…
Added 1 hour ago
A
HSE Advisor
AtkinsRéalis
Toronto, ON
- Full-time
…committed to leading our clients across our various end markets to engineer a better future for our planet and its…

OnX

Sr. Engineer System administrator

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.

We are seeking a highly skilled Senior Systems Administrator to join our Infrastructure Services team. This role is ideal for a hands-on technical professional who thrives in complex enterprise environments and enjoys managing mission-critical server infrastructure across Windows, Linux, and cloud platforms.

What You'll Do

As a Senior Systems Administrator, you will be responsible for maintaining, optimizing, and securing enterprise server environments while ensuring the highest levels of performance, availability, and compliance.

Key Responsibilities

Administer and support enterprise Windows and Linux server environments.
Perform operating system installation, configuration, patching, upgrades, and lifecycle management.
Monitor system health, performance, and availability, proactively identifying and resolving issues.
Implement infrastructure improvements that enhance scalability, resiliency, and operational efficiency.
Manage enterprise security baselines, vulnerability remediation efforts, and system hardening activities.
Support cloud-based infrastructure across AWS and Microsoft Azure environments.
Automate operational processes using scripting and automation tools.
Collaborate with networking, security, application, and cloud teams to deliver integrated technology solutions.
Perform capacity planning and growth forecasting for server and compute environments.
Maintain technical documentation, operational procedures, and knowledge articles.
Mentor junior team members and provide technical guidance on infrastructure best practices.

Required Qualifications

Education

Bachelor's degree in Computer Science, Information Technology, Engineering, Telecommunications, or a related technical discipline.

Experience

6+ years of overall IT infrastructure experience.
5+ years of hands-on systems administration experience in enterprise environments.

Technical Skills

Required

Linux Administration
Windows Server Administration (Wintel)
Unix Administration
Infrastructure Monitoring and Troubleshooting
Operating System Patching and Maintenance
Performance Optimization
Security Hardening and Compliance
Server Lifecycle Management

Preferred

AWS Administration
Microsoft Azure Administration
Citrix XenServer
Sun Solaris
AS/400
WSUS
Python
Bash Scripting
PowerShell

Desired Competencies

Infrastructure Provisioning & Configuration Management
Performance Monitoring & Optimization
Virtualization Technologies
Automation & Scripting
Security & Compliance Management
Capacity Planning & Resource Management
Strong Problem-Solving Skills
Effective Communication
Ownership and Accountability
Collaboration and Teamwork
Customer-Focused Mindset

Success Measures

In this role, success will be measured through:

Infrastructure uptime and SLA achievement
Reduced incident resolution times (MTTR)
Security compliance and vulnerability remediation performance
Increased automation and operational efficiency
Adherence to infrastructure standards and governance practices

Why Join OnX?

Work with modern infrastructure and cloud technologies.
Collaborate with experienced technology professionals across Canada.
Gain exposure to enterprise-scale environments and strategic initiatives.
Competitive compensation and benefits package.
Professional development and certification support.
Flexible work options depending on role requirements.

CAD $62,000 – $82,000 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, maintain, secure, and optimize enterprise Windows and Linux server environments, including operating system lifecycle management, monitoring, troubleshooting, and cloud infrastructure support across AWS and Azure. Improve infrastructure resilience and efficiency through automation, capacity planning, documentation, cross-team collaboration, and mentoring junior team members.

Requirements

Requires a bachelor's degree in Computer Science, Information Technology, Engineering, Telecommunications, or a related technical discipline, along with at least six years of overall IT infrastructure experience. Candidates must have at least five years of hands-on enterprise systems administration experience and skills in Linux, Windows Server, Unix, monitoring, patching, performance optimization, security, and server lifecycle management.

Skills

Linux Administration
Windows Server Administration
Unix Administration
Infrastructure Monitoring
Troubleshooting
Operating System Patching
Performance Optimization
Security Hardening
Compliance Management
Server Lifecycle Management
AWS Administration
Citrix XenServer
Sun Solaris
Python
PowerShell

Benefits

Professional Development Support
Certification Support
Flexible Work Options

Visa sponsorship

Not detected in the job text

Keywords

Linux
Windows Server
Unix
AWS
Microsoft Azure
Citrix XenServer
Sun Solaris
AS/400
WSUS
Python
Bash
PowerShell
Infrastructure Monitoring
Troubleshooting
Operating System Patching
Performance Optimization
Security Hardening
Compliance
Server Lifecycle Management
Infrastructure Provisioning
Configuration Management
Virtualization
Automation
Capacity Planning
Vulnerability Remediation
Enterprise Infrastructure
Cloud Infrastructure
Incident Resolution
Service Level Agreements
Technical Documentation

Report this job

Jobs in Canada

Senior Maintenance Engineer

3rd Class Power Engineer

Geotechnical Engineer Signing Bonus May Apply

Geotechnical Engineer Signing Bonus May Apply

Power Engineer - 4th Class

Engineer, Civil/Structural

Quality Assurance Supervisor

Senior Combat Systems Engineer/Specialist

Construction Supervisor

IAM Engineer - PingFed

Sr. Analytics Developer

Bilingual Data Engineer

Site Project Manager

Senior Electrical Engineer, Traffic Signals Team Lead

Environmental Field Technician

Mine Planning Engineer, Operational Growth

Intermediate Software Engineer (Agentic AI Verification)

Aircraft Maintenance Engineer - Calgary

DevOps Engineer

Automation and Build Developer II

Co-op/Intern - Environmental Engineer

Associate Software Engineer

Mechanical Field Engineer / Project Engineer - Construction

HSE Advisor

HSE Advisor