Jobs in Ontario (227,492 jobs)

Jobs across Ontario, Canada. Choose a city or town to search nearby.

227,492 listings · 21,901 employers Counted Nov 12, 2026. How we count

About these jobs

Employers hiring include Loblaw Companies Limited (5,716 listings), Shoppers Drug Mart (4,489 listings), Walmart Canada (3,851 listings).

Common roles: Retail sales associate, Practical nurse, Registered nurse.

36,622 of these listings include employer-provided pay. Open a job to see its currency and pay period.

Advertised starting pay
Pay period	Median starting pay	Listings
CAD / hour	23.00	19,506
CAD / year	80,000.00	15,719
USD / year	155,000.00	87
CAD / month	4,000.00	70
CAD / week	1,500.00	53
CAD / day	120.50	24
USD / hour	20.00	15

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.

Workplace classifications: 0% remote, 17% hybrid, 82% on-site, 0% not specified. Hybrid and on-site classifications may be inferred from descriptions. Check the original ad.

Based on the dated count above. Listings can change. How we count

Jobs in Ontario

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Added 2 hours ago
Accessibility Team Lead (Neurological Team)
University of Toronto
Toronto, ON
Added 2 hours ago
Research Partnerships Administrator
University of Toronto
Toronto, ON
Added 2 hours ago
T
Delivery Manager
Talentmatics
Mississauga, ON
- Full-time
Added 2 hours ago
RV
Special Aide
Royal Victoria Regional Health Centre
Barrie, ON
- Full-time
Must have effective organizational skills and demonstrate the ability to creatively solve problems
Added 2 hours ago
AC
General Help
Aramark Canada
Woodstock, ON
- Full-time
Added 2 hours ago
RV
Registered Practical Nurse
Royal Victoria Regional Health Centre
Barrie, ON
- Full-time
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KM
Spécialiste en facturation bilingue (GTA)
Konica Minolta Business Solutions Canada
Mississauga, ON
- Full-time
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QW
Clarity PPM
Quantum World Technologies Inc.
Toronto, ON
- Contract
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W
Principal Geotechnical Engineer, P.Eng. – Tailings and Dams
Worley
Markham, ON
- Full-time
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Product Designer
Kablamo
Toronto, ON
- Full-time
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Toronto, ON
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Principal Geotechnical Engineer, P.Eng. – Tailings and Dams
Worley
Oakville, ON
- Full-time
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V|
Sr Electrical, Instrumentation & Controls Engineer - Water Technologies
Veolia | North America
Oakville, ON
- Full-time
Added 2 hours ago
HT
Financial Manager - PLM (Product Line Mgmt)
Husky Technologies
Bolton, ON
- Full-time
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HT
Payroll Manager, Americas
Husky Technologies
Bolton, ON
- Full-time
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CC
Supervisor, Office of the President and Social Media
Cogeco Connexion
Burlington, ON
- Full-time
Added 2 hours ago
UH
Registered Nurse - MSICU
University Health Network
Toronto, ON
- Full-time
Added 2 hours ago
QM
Wellness Manager
Quantum Management Services Ltd.
Richmond Hill, ON
- $80,000 to $90,000 CAD / year
- Full-time
Added 2 hours ago
FF
SBA Loan Officer
First Financial Bank Texas
Brock, ON
- Full-time
Added 2 hours ago
S
Registered Nurse - Critical Care Unit - Regular Full-Time 2026-19307 (2026-19307)
Sunnybrook
Toronto, ON
- Full-time
Added 2 hours ago
ES
Full Stack Engineer
Exchange Solutions
Toronto, ON
- Full-time
Added 2 hours ago
K
Front End Engineer
Kablamo
Toronto, ON
- Full-time
Added 2 hours ago
CO
Job ID#32329: Data Scientist - PH
City Of Hamilton
Hamilton, ON
- $105,334.32 to $131,667.9 CAD / year
- Full-time
Added 2 hours ago
KM
Cyber Security Analyst (GTA)
Konica Minolta Business Solutions Canada
Mississauga, ON
- $62,800.26 to $90,276 CAD / year
- Full-time
Added 2 hours ago
WO
Occupational Therapist - Seniors Clinic
William Osler Health System
Brampton, ON
- Full-time

Robert Half

Senior System Administrator

Newmarket, ON, Canada

Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 12, 2026
Experience: 5+ years of infrastructure, systems administration, or IT operations experience
Posting language: English
Posted: Nov 12, 2026

Original job description

Robert Half is exclusively partnered with a well-established organization in Newmarket that is looking to hire a Senior Systems Administrator to lead infrastructure, security, and IT operations across the business.

This is a highly visible role that combines hands-on technical leadership with stakeholder engagement, vendor management, and strategic planning. The successful candidate will play a key role in modernizing the environment while helping the organization move further toward a cloud-first future.

What You'll Be Working On

This is not a traditional "keep the lights on" Systems Administrator position. The goal is to bring in someone who can take ownership of infrastructure operations, lead continuous improvement initiatives, and become the go-to infrastructure resource for the business.

Responsibilities include:

Owning day-to-day infrastructure and operational support

Managing and mentoring the Network Administrator

Partnering with the MSP and managing the vendor relationship

Responding to issues affecting internal users and external clients

Identifying opportunities for infrastructure improvements and modernization

Making security recommendations and driving best practices

Supporting disaster recovery, redundancy, and business continuity initiatives

Leading and contributing to infrastructure-related projects

Acting as a trusted technology advisor to leadership and business stakeholders

This role offers significant autonomy and influence, with the objective of allowing the VP, IT to transition away from day-to-day operational IT responsibilities.

Technology Environment

Microsoft environment

Hybrid Active Directory

Azure / Entra ID

Windows Server

Exchange Online & on-prem Exchange

SQL Server

SharePoint

Sophos Firewalls

DNS / DHCP

Virtualization technologies

PowerShell automation

Telephony and voice technologies

Disaster recovery and redundancy solutions

Upcoming Projects

Enhancement of disaster recovery and redundancy capabilities

Continued cloud transformation initiatives

Client portal deployment and supporting infrastructure

Ongoing telephony modernization projects

Security improvements and operational automation

What We're Looking For

5+ years of infrastructure, systems administration, or IT operations experience

Strong Microsoft infrastructure expertise

Experience supporting hybrid cloud environments

Network, security, and systems administration experience

Strong troubleshooting and problem-solving skills

Experience managing vendors or MSP relationships

Excellent communication and stakeholder management abilities

Comfortable working directly with clients and senior leadership

A passion for technology and continuous improvement

Automation mindset with PowerShell or similar scripting experience

Why Consider This Opportunity?

Opportunity to become the senior infrastructure leader within the organization

Broad ownership across infrastructure, security, operations, and vendor management

Executive visibility and influence

Stable organization with a long-tenured technology team

100% employer-paid benefits

RRSP matching up to 6%

Annual salary reviews

Paid certifications and professional development

Free onsite parking

7-hour workday (8:30am - 4:30pm)

Apply on LinkedIn About employer

More about this job

Responsibilities

Own infrastructure operations and support, lead modernization and security improvements, and manage the Network Administrator, MSP relationship, and infrastructure projects. Advise leadership and business stakeholders while supporting disaster recovery, redundancy, and business continuity initiatives.

Requirements

Requires 5+ years of infrastructure, systems administration, or IT operations experience, strong Microsoft infrastructure expertise, and experience with hybrid cloud, networking, and security. Candidates should also bring vendor or MSP management experience, strong troubleshooting and communication skills, stakeholder confidence, and an automation mindset using PowerShell or similar scripting.

Skills

Microsoft Infrastructure
Hybrid Cloud Environments
Systems Administration
IT Operations
Network Administration
Security Administration
Vendor Management
Disaster Recovery
Business Continuity
PowerShell Automation
Troubleshooting
Stakeholder Management
Infrastructure Modernization

Benefits

Employer-Paid Benefits
RRSP Matching Up To 6%
Annual Salary Reviews
Paid Certifications And Professional Development
Free Onsite Parking

Visa sponsorship

Not detected in the job text

Keywords

Microsoft
Hybrid Active Directory
Azure
Entra ID
Windows Server
Exchange Online
On-Premises Exchange
SQL Server
SharePoint
Sophos Firewalls
DNS
DHCP
Virtualization
PowerShell
Telephony
Disaster Recovery
Redundancy
Business Continuity
Cloud Transformation
Client Portal
Infrastructure Operations
Network Administration
Security Best Practices
Vendor Management
Managed Service Provider
Automation
Infrastructure Modernization

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Work requirements

Jobs in Ontario