Systems Administrator III (Linux)
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Aug 4, 2026.
Systems Administrator III (Linux)
Your Moneris Career - The Opportunity
As a Systems Administrator III (Linux), you will engineer, automate, secure, and continuously improve the enterprise Red Hat Enterprise Linux (RHEL) platform that underpins Moneris’ business-critical payments services across on-premises datacentersand cloud.
This is asenior,hands-on infrastructure rolecenteredon operating and modernizing a large-scale RHEL estate of thousands of virtual machines spanning development through mission-critical production. You will build reusable automation at scale with Ansible, Python, and Bash; drive lifecycle management through patching, upgrades, and migrations; and harden the environment against payments-industry compliance standards. Working independently with sound judgment, you will partner with Platform, Site Reliability Engineering (SRE), Cloud Operations, Information Security, and Infrastructure Architecture teams to deliver a consistent, resilient, and secure operating environment. You will also mature service ownership, mentor less-experienced colleagues, and reduce operational drift through standards-based engineering.
Location: You will be based in our Toronto office, balancing in-office collaboration with remote flexibility.
Reporting Relationship: You will report to Manager, Systems Infrastructure
Posting Type: Replacement Position
Salary Range: The expected base salary range for this role is $85,000 - $113,000
Total compensation may also include variable or discretionary incentive components, including but not limited to bonuses and commissions. Individual job offers aredeterminedbyvarious factors, including experience, education, skills, certifications, and other business needs.
Your Moneris Career - Whatyou'lldo
Administer, maintain, and support a large-scale RHEL estate of thousands of virtual machines across development, test, and mission-critical production.
Build andmaintainreusable automation at scale using Red Hat Ansible, Bash, Python, and GitHub to enforce standards and reduce manual effort.
Manage platform currency through patching, upgrades, in-place migrations, remediation, and decommissioning using Red Hat Satellite and Hybrid Cloud Console.
Lead and support projects covering implementation, modernization, service transition, and operational readiness across hybrid infrastructure.
Troubleshoot complex issues to root cause across operating system,compute, storage, virtualization, identity, and network-adjacent layers.
Support server hardening, vulnerability remediation, and compliance activities within a least-privilege, PCI DSS-regulated environment.
Manage incidents, requests, problems, and changes in ServiceNow, aligned to enterpriseITILchange management processes.
Create andmaintainbuild standards,automationplaybooks, technical documentation, diagrams, and knowledge base articles.
Your Moneris Career - What you bring
Required qualifications
Minimum 3 years administering and supporting Red Hat Enterprise Linux 7/8/9/10 on x86_64 at enterprise scale, including thousands of VMs across multiple environments.
Extensive hands-on automation experience with Red Hat Ansible, Bash, Python, and GitHub to deliver standards-based, consistent, secure environments at scale.
Strong experience with Linux build, patching, upgrade, in-place migration, and decommissioning workflows, including Red Hat Satellite and Hybrid Cloud Console.
Experience integrating RHEL with Active Directory using SSSD and Kerberoskeytabswithin a least-privilege security model.
Experience with virtualization such as VMware vSphere or Nutanix AHV and supporting Infrastructure as aService (IaaS) virtual machinesin Microsoft Azure.
Demonstrated root-cause troubleshooting across OS,compute, storage, virtualization, and network-adjacent layers, with a record of continuous service improvement.
Working knowledge of IPv4 fundamentals, network segmentation, PKI, backup, recovery, and disaster recovery concepts, plus ServiceNow and ITIL processes.
Preferred qualifications
Experience in a regulated industry, ideally payments or Payment Card Industry Data Security Standard (PCI DSS) environments.
Familiarity with server hardening using Center for Internet Security (CIS) benchmarks and National Institute of Standards and Technology (NIST) guidelines, with tools such as Microsoft Defender,OpenSCAP, and Forta Tripwire.
Experience with CyberArk Privileged Access Management andConjursecrets management, Venafi, Azure Arc, and Microsoft Defender for Endpoint (ATP).
Exposure to container-based infrastructure, DevOps pipelines, and observability tooling such asCheckMKand Dynatrace, plusGlusterFS/FUSE, NFS, and Postfix.
What you get
Emphasis on Wellness - Meeting Free Fridays (MF2), company-wide holiday closure, just to name a few
RRSP matching & defined contribution pension plan
Flexible benefits package starting from day 1
Thrive in a Hybrid or Remote Model - including a tech peripheral rebate!
Extensive learning & development programs and resources - plus unlimited free access to LinkedIn Learning and Udemy courses!
EAP (Employee Assistance Program), Educational Assistance and Recognition Program
Employeeperkprogram with incredible discounts for over 2,400 vendors!
Get involved in one or many of our Moneris Committees and Employee Resource Groups - Inclusive Workplace Council (IWC), Black Employee Network, just to name a few
Learn more about how Moneris is striving to be at the forefront of Fintech! (https://www.moneris.com/en/Careers/Tech)
Note: We welcome and encourage applications from Indigenous peoples, people of colour, people with disabilities, people of all genders, sexual orientation and intersectional identities.
AI Disclosure: We may use AI-enabled tools to screen, select, and assess applications. All AI outputs are reviewed and validated by our recruitment team.
We acknowledge that people from equity-deserving groups (including racialized individuals, women, gender diverse individuals, individuals with disabilities, neurodivergent individuals, members of 2SLGBTQIA+ communities and those born outside of Canada) are less likely to apply for jobs unless they feel they meet all the requirements posted. At Moneris, we believe candidates bring experience to their work in many ways. We encourage you to apply and share, in the application form, the transferrable experience you bring, and how this will support your success in this role.