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Senior Linux System Administrator Jobs in Toronto, ON

Moneris

Systems Administrator III (Linux)

Toronto, ON · Hybrid

CA$85K - CA$113K/yr

Systems Administrator III (Linux) Your Moneris Career - The Opportunity As a Systems Administrator ... Troubleshoot complex issues to root cause across operating system,compute, storage, virtualization ...

OICR

Systems Administrator III

Toronto, ON · On-site

CA$93K - CA$104K/yr

OICR's infrastructure consists of Linux and Windows servers, including a large high performance ... Interprets log results and system behaviors. * Interprets log results and system behaviors.

Targeted Talent

Senior Systems Administrator

Guelph, ON · Remote

$90K - $95K/yr

We are looking for an experienced Senior Systems Administrator (Windows) for our client. This is a permanent position, remote in Ontario! Our client is a large fintech firm with a product that you've ...

Targeted Talent

Senior Systems Administrator

Hamilton, ON · Remote

$90K - $95K/yr

We are looking for an experienced Senior Systems Administrator (Windows) for our client. This is a permanent position, remote in Ontario! Our client is a large fintech firm with a product that you've ...

Targeted Talent

Senior Systems Administrator

Oshawa, ON · Remote

$90K - $95K/yr

We are looking for an experienced Senior Systems Administrator (Windows) for our client. This is a permanent position, remote in Ontario! Our client is a large fintech firm with a product that you've ...

2188186 ONTARIO INC

IT Administrator

Oakville, ON

CA$40K - CA$55K/yr

... and Linux based systems (Active Directory, windows server 2012, windows server2016, office 365 etc.) · Experience writing SQL Query, Stored Procedures and Scheduling Job · Knowledge in designing ...

Targeted Talent

Senior Systems Administrator

Hamilton, ON · Remote

$90K - $95K/yr

We are looking for an experienced Senior Systems Administrator (Windows) for our client. This is a permanent position, remote in Ontario! Our client is a large fintech firm with a product that you've ...

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Senior Linux System Administrator information

See Toronto, ON salary details

$56.3K

$105.8K

$145.5K

How much do senior linux system administrator jobs pay per year?

As of Aug 21, 2026, the average yearly pay for senior linux system administrator in Toronto, ON is $105,838.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,616.00 and $125,018.00 per year, depending on experience, location, and employer.

What is a senior Linux system administrator?

A Senior Linux System Administrator is responsible for managing, configuring, and maintaining Linux-based systems and servers. They handle system performance tuning, security hardening, troubleshooting, and automation through scripting and configuration management tools. Additionally, they oversee backups, software updates, and infrastructure reliability. This role often involves mentoring junior administrators and collaborating with development and IT teams to support business operations.

What are the typical daily responsibilities of a senior Linux system administrator?

Senior Linux System Administrators are responsible for managing, maintaining, and optimizing Linux-based servers and infrastructure. Their daily tasks often include monitoring system performance, managing user permissions, applying security patches, automating processes through scripting, and troubleshooting technical issues. They regularly collaborate with developer, security, and operations teams to support new deployments and ensure system reliability. Additionally, they may mentor junior administrators and contribute to designing infrastructure improvements, making this a dynamic and influential role within IT operations.

What are the key skills and qualifications needed to thrive as a senior Linux system administrator?

To thrive as a Senior Linux System Administrator, you need deep expertise in Linux/UNIX system administration, scripting, networking, and troubleshooting, typically backed by several years of industry experience and a relevant degree or certifications like RHCE or CompTIA Linux+. Proficiency with tools such as Ansible, Puppet, Docker, and monitoring platforms, as well as experience with cloud environments, is highly valued. Strong problem-solving abilities, communication skills, and the capacity to mentor junior team members are crucial soft skills. These abilities are essential for ensuring reliable system uptime, seamless team collaboration, and effective response to complex IT challenges.

What are the most commonly searched types of Linux System Administrator jobs in Toronto, ON?

The most popular types of Linux System Administrator jobs in Toronto, ON are:

What are popular job titles related to Senior Linux System Administrator jobs in Toronto, ON?

For Senior Linux System Administrator jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Senior Linux System Administrator jobs in Toronto, ON look for?

The top searched job categories for Senior Linux System Administrator jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Senior Linux System Administrator jobs?

Cities near Toronto, ON with the most Senior Linux System Administrator job openings:

Senior Linux System Administrator jobs near you
Infographic showing various Senior Linux System Administrator job openings in Toronto, ON as of August 2026, with employment types broken down into 83% Full Time, and 17% Contract. Highlights an 84% In-person, and 16% Remote job distribution, with an average salary of $105,838 per year, or $50.9 per hour.

Linux System Administrator and Automation Engineer

GlassHouse Systems

Toronto, ON • On-site

CA$80K - CA$100K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 18 days ago

Job description

GlassHouse Systems (GHS) is an enterprise systems, and managed services solutions provider that develops, designs and deploys solutions for leading enterprises in Canada and the US. For almost 33 years, GHS has delivered an enterprise level of service and support to clients. Recognized with industry-leading awards each year, GHS translates this differentiation into positive client experiences.


This position operates within a small, technical team supporting multiple customer environments. The role requires ability to work alone while being able to solve problems and manage multiple projects maintaining high operational standards.

You will be expected to take ownership of systems, contribute to automation strategy, and continuously improve operational efficiency.


Responsibilities:

Linux Systems Administration:

Extensive experience with RHEL and Ubuntu, including installation,

configuration, patching, troubleshooting, and distribution upgrades.

Experience with MySQL a plus.

Automation using Ansible Core:

Proven experience designing, building, and maintaining automation using Ansible

Core, including development of playbooks, roles, inventories, and collections.

Scripting:

Strong scripting skills in Python and Bash to implement advanced logic not

natively handled by Ansible. Experience integrating with cloud platforms,

including Microsoft cloud-based applications and IBM Cloud.

IBM i experience is a differentiator.

Documentation:

Ability to create clear, structured, and reusable documentation for automation

workflows, operational procedures, and system configurations.


Disclaimer:

The rate for this position is $80K-100K. The rate is subject to change and may be modified in the future.

As part of our hiring process, we use AI tools to support resume screening and candidate evaluation.

What you'll get:

Competitive salary

Health benefits (medical, vision, dental)

Life insurance

Pension plan

Professional development

Amazing company culture

Free parking

Gym on-site

Join a team of professionals led by a diverse set of leaders from across the industry.


GlassHouse Systems commitment:

We believe that a diverse team is the key to innovation and growth. We are an equal opportunity employer that values diversity at our company and encourages all candidates to apply. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

GlassHouse Systems will accommodate individuals with disabilities through each stage of the recruitment process. Please advise us of any needs when your interview is booked and we will do our best to meet your needs.

Please note that all candidates have to be legally eligible to work in Canada.

Any offer of employment will be conditional upon a criminal record check.

GlassHouse Systems thanks all candidates for their interest, however only those selected to continue in the process will be contacted.


Requirements:

10+ years of Systems administration experience with RHEL and Ubuntu including installation, configuration, patching, troubleshooting and distribution upgrades.

8+ years of Ansible Core: Experience designing, building, and maintaining automation creating playbooks, roles, inventories and collections.

5+ years of Scripting: Create Python and Bash scripts when needed to implement logic not handled natively by playbooks and interaction with Microsoft applications and IBM cloud platforms. IBM i experience a plus.

Bachelor’s degree in Computer Science, Information Technology, or related field

Relevant certifications such as:

Red Hat Certified System Administrator (RHCSA) – a Must

Red Hat Certified Engineer (RHCE)

Linux Professional Institute Certification (LPIC)

IBM Cloud certifications