Milton, On Linux system administrator Jobs – 12 Openings This Week

Systems Administrator
Robert Half —Mississauga, ON
- $80,000–$110,000 a year
- Computer Science
- Customer service
- Maintenance
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1h
Sr. Windows System Administrator (Email Server)
OpenText —Mississauga, ON
- $81,600–$122,400 a year
- On call
- Azure
- Software troubleshooting
- Windows
- Paid time off
Lead Site Reliability Administrator
OpenText —Mississauga, ON
- $118,000–$168,000 a year
- On call
- Computer Science
- AWS
- Bachelor's
- Paid time off
Sr. Systems Administrator
OpenText —Mississauga, ON
- $67,200–$110,400 a year
- Maintenance
- Machine learning
- Mentoring
- Paid time off
Lead Cloud Applications Administrator
OpenText —Mississauga, ON
- $98,080–$147,120 a year
- Oracle
- Computer Science
- Maintenance
- Paid time off
Systems Administrator
n!Biomachines Ltd. —Burlington, ON
- $60,000–$80,000 a year
- Full-time
- Computer Science
- Engineering
- System design
- Disability insurance
- Paid time off
Quick apply
7d
Sr. Linux Engineer
LTM —Mississauga, ON
- $74,016–$107,937 a year
- On call
- Azure
- Computer Science
- Software troubleshooting
- Disability insurance
- Dental care
Quick apply
Senior JDE CNC Administrator
IKO Industries Ltd. —Mississauga, ON
- Weekends as needed
- Maintenance
- Windows
- Analysis skills
- Disability insurance
- Dental care
Sr DevSecOps Cloud Specialist
LTM —Mississauga, ON
- $90,000–$110,000 a year
- On call
- Azure
- DevOps
- English
- Disability insurance
- Dental care
Quick apply

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Sr. Windows System Administrator (Email Server)
OpenText —Mississauga, ON
OpenText is more than just a corporation, it's a global community where trust is foundational, the bar is raised, and outcomes are owned.
$81,600–$122,400 a year
Junior IT Workplace & Infrastructure Analyst
Rexel —Mississauga, ON
CompTIA Security+ or equivalent security certification. Linux certification such as RHCSA or LPIC-1 is an asset. Microsoft Graph or API integration exposure.
$55,000–$65,000 a year
Quick apply
8d

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Systems Administrator, Information Technology
Oak Valley Health —Markham, ON
Ensures that the organization is protected by maintaining adequate software licensing and supervising audits of software license compliance.
$50.41–$61.89 an hour
5d
Network Administrator (Global)
Giesecke+Devrient —Markham, ON
By applying to this position, you are confirming you possess either a Canadian citizenship, permanent resident status or valid work permit.
$95,000–$115,000 a year

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linux system administrator jobs near milton, on

Systems Administrator

Robert Half -
Mississauga, ON

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Job details

Permanent
$80,000–$110,000 a year
1 hour ago

Qualifications

Microsoft Windows Server
Computer Science
Customer service
Post-secondary education
Maintenance
Windows
Network infrastructure
Continuous improvement
Disaster recovery implementation
Virtualization
Scripting
Customer service orientation
Network support
Business continuity planning
Cloud computing
Linux
Cybersecurity
Communication skills
Help desk
Identity & access management

Full job description

Robert Half Canada is recruiting on behalf of an organization seeking a Systems Administrator to support, maintain, and enhance its IT infrastructure and core systems environment.
This opportunity is suited to a technology professional who enjoys troubleshooting, improving system performance, and helping ensure reliable, secure, and efficient IT operations. The successful candidate will work across infrastructure, systems administration, user support, and continuous improvement initiatives.

Key Responsibilities
Administer, maintain, and support servers, operating systems, networks, and related infrastructure.
Monitor system performance, availability, backups, and security to help ensure stable day-to-day operations.
Install, configure, patch, and upgrade hardware, software, and system applications.
Support user account administration, access controls, permissions, and identity management processes.
Troubleshoot and resolve system, server, network, and end-user issues in a timely manner.
Assist with cybersecurity practices, endpoint protection, vulnerability remediation, and system hardening.
Support backup, recovery, disaster recovery, and business continuity processes.
Document technical procedures, configurations, support processes, and system changes.
Work with internal stakeholders and external vendors to support projects, maintenance, and issue resolution.
Contribute to infrastructure improvements, automation opportunities, and technology upgrades.

Qualifications
Post-secondary education in Information Technology, Computer Science, or a related field. Equivalent practical experience will also be considered.
Experience in systems administration, infrastructure support, or a similar IT role.
Working knowledge of Windows and/or Linux server environments, networking fundamentals, virtualization, and cloud-based platforms.
Experience supporting Microsoft 365, Active Directory, backups, endpoint management, and security tools is considered an asset.
Familiarity with scripting, automation, monitoring tools, and IT documentation practices is considered an asset.
Strong problem-solving, communication, organizational, and customer service skills.
Ability to manage multiple priorities and work effectively both independently and collaboratively.

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

This job posting is for a current vacancy with our client.

Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.

Questions? Call your local office at 1.888.490.4429. All applicants applying for Canadian job openings must be authorized to work in Canada.

Only job postings for jobs located in Quebec appear in French.

© 2025 Robert Half. By clicking “Apply,” you’re agreeing to Robert Half’s Terms of Use and Privacy Notice .

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linux system administrator jobs in milton, on

Systems Administrator

Sr. Windows System Administrator (Email Server)

Lead Site Reliability Administrator

Sr. Systems Administrator

Lead Cloud Applications Administrator

Systems Administrator

Sr. Linux Engineer

Senior JDE CNC Administrator

Sr DevSecOps Cloud Specialist

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