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Added 8 mins ago
Senior Data Engineer
Royal Bank of Canada
Vancouver, BC
Full-time
…digital transformation strategy. We're seeking a Senior Data Engineer to architect and build scalable, cloud-native ETL/ELT pipelines that power our enterprise data ecosystem. In this…
Added 38 mins ago
Senior Data Engineer
RBC
Vancouver, BC
Full-time
…digital transformation strategy. We're seeking a Senior Data Engineer to architect and build scalable, cloud-native ETL/ELT pipelines that power our enterprise data ecosystem. In this…
Added 53 mins ago
DDI Network Engineer
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Toronto, ON · SCC
Full-time
Experience with DNS security - DNSSEC, DNS Firewall, email (SPF, DMARC, DKIM), CAA.
Added 1 hour ago
Senior IAM Engineer
Collabera
Toronto, ON
$90 to $95 CAD / hour
Contract
We are seeking an experienced Senior IAM Systems Engineer - Advanced to support enterprise authentication and identity access management initiatives.
Added 1 hour ago
Software Engineer III (Full Stack/API Integration)
TD
Toronto, ON
Full-time
The Enterprise Data Management Office (EDMO) is seeking a highly motivated Software Engineer III to design, develop, deploy, and support secure enterprise integration capabilities for the…
Added 1 hour ago
UWB/CSS Ranging & Positioning Engineer
Amaris Consulting | Part of Mantu
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Unité véhicule : C++ sur Linux embarqué avec Yocto.
Added 2 hours ago
Linux Security Engineer / Toronto, ON (Onsite) - FTE
AceStack
Toronto, ON
Full-time
Job Description: We are seeking an experienced Linux Security Engineer to strengthen Linux security, vulnerability management, configuration compliance, and patching across the enterprise…
Added 2 hours ago
Performance Test Engineer
Randstad Digital
Toronto, ON
Contract
We are seeking a senior Performance Engineer (QA) to drive end-to-end performance testing delivery for complex, high-reliability enterprise financial applications. Working closely with…
Added 3 hours ago
DevOps Engineer
Spait Infotech
Canada
Full-time
Implement security best practices across infrastructure and deployment pipelines.
Added 3 hours ago
Linux Desktop Engineer
Celestica
Toronto, ON
Full-time
The Linux Desktop Engineer will own the design, deployment, configuration, and structural maintenance of Celestica's high-performance Linux computing platform. This role directly supports…
Added 3 hours ago
IAM System Engineer
Mindlance
Toronto, ON
$80 to $95 CAD / hour
Contract
Job Title: Senior IAM Systems Engineer - Advanced
Added 9 hours ago
Tech Ops Engineer
Scientific Games
Montreal, QC
Full-time
…relentless innovation, legendary performance, and unwavering security to responsibly propel the global lottery industry ever…
Added 11 hours ago
Senior Embedded Software Designer
Kepler Communications Inc.
Toronto, ON
Full-time
We're on the hunt for a top-tier Embedded Software Engineer. Your focus will be on software development and maintenance required for both space and ground-based assets for a growing fleet…
Added 14 hours ago
Senior SailPoint IIQ Engineer
Cognizant
Brampton, ON
Full-time
Practice - CIS - Cloud, Infrastructure, and Security Services
Added 14 hours ago
DevOps Engineer
ZTR
London, ON
Full-time
As the DevOps Engineer, you will work closely with development, security, and IT teams to operate, maintain, and continuously improve ZTR’s cloud platform infrastructure, ensuring reliable,…
Added 18 hours ago
DevOps Manager
Rightsline Inc
Toronto, ON
$85,000 to $95,000 CAD / year
…You will manage and develop a team of five - a Senior DevOps Engineer, a DevOps Engineer, and two Senior Systems Engineers - and hold end-to-end accountability for the infrastructure our…
Added 19 hours ago
DevOps Specialist
Manulife
Toronto, ON
Full-time
Manage and optimize cloud infrastructure and services while ensuring scalability, reliability, performance, and security.
Added 20 hours ago
Java Backend developer - Java 17, DevSecOps, Kubernetes
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
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Temporary
We are seeking a Software Engineer to join a Global Enterprise Technology Team responsible for the development, modernization, security and operational reliability of mission critical…
Added 20 hours ago
Intermediate Tier 3 Support Engineer
JSI
Ottawa, ON
Full-time
A Tier 3 Support Engineer at JSI keeps our Nova and 4Sight platforms stable and helps Technical Support and Engineering resolve the hardest issues fast. Nova is our Kubernetes-based…
Added 20 hours ago
Senior Cryptographic Protocol Engineer
SuperQubit Inc.
Markham, ON
Full-time
Job Title: Senior Cryptographic Protocol Engineer
Added 20 hours ago
Linux Security Engineer
Zodiac Solutions, Inc
Toronto, ON
Full-time
Deploy and validate endpoint security agents (CrowdStrike/Falcon) across Linux hosts in partnership with the Linux teamContribute to bi-weekly vulnerability reporting for senior leadership"
Added 21 hours ago
Tech Ops Engineer
SCIENTIFIC GAMES
Montreal, QC
Full-time
…relentless innovation, legendary performance, and unwavering security to responsibly propel the global lottery industry ever…
Added 22 hours ago
System Engineer
Mindlance
Toronto, ON
$70 to $82 CAD / hour
Contract
Job Title: Senior IAM Systems Engineer - Advanced
Added 22 hours ago
Senior Software Engineer
Okta
Toronto, ON
$136,000 to $187,000 CAD / year
Full-time
We are looking for a Senior Software engineer who is passionate about writing the tools to integrate and support to build large-scale, high-demand software in a fast-paced agile…
Added 1 day ago
IAM Engineer
Mindlance
Toronto, ON
Contract
Job Title: Senior IAM Systems Engineer – Advanced

AceStack

Linux Security Engineer / Toronto, ON (Onsite) - FTE

Toronto, ON, Canada

Job type: Full-time
Apply by: Oct 29, 2026
Posting language: English
Posted: Sep 29, 2026

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Original job description

Role: Linux Security Engineer

Location: Toronto, ON

Work Arrangement: Onsite

Employment Type: Fulltime FTE - Permanent

Experience: 6–8 Years

Job Description: We are seeking an experienced Linux Security Engineer to strengthen Linux security, vulnerability management, configuration compliance, and patching across the enterprise Linux estate. The ideal candidate will have strong experience with Linux hardening, Qualys, Puppet, Foreman, CIS benchmarks, security baselines, patch management

Key Responsibilities

Partner with Linux and Platform Engineering teams to define and enforce Linux hardening standards, ensuring new Linux systems are compliant with security requirements from day one.
Own the Linux vulnerability management lifecycle, including triaging findings from Qualys, prioritizing vulnerabilities based on SLA, and coordinating remediation with Linux teams.
Drive vulnerability remediation through Puppet and Foreman, ensuring vulnerabilities are addressed within defined timelines.
Track and report missed-target vulnerabilities across BTN and CMRI Linux environments.
Escalate overdue or missed vulnerabilities with documented remediation plans or delegation plans based on the team ownership model.
Validate Linux configuration compliance against CIS Benchmarks and enterprise security baselines.
Identify and raise Puppet module gaps to Platform Engineering teams and coordinate remediation.
Coordinate Linux patching schedules and maintenance windows and ensure adherence to enterprise patching requirements.
Support the evaluation and adoption of ServiceNow as a unified patch orchestration platform.
Help transition from manually created, per-patch Jira change tickets to automated scheduled pipeline execution through ServiceNow.
Deploy, configure, and validate endpoint security agents, including CrowdStrike Falcon, across Linux hosts in partnership with Linux engineering teams.
Monitor endpoint security agent deployment and ensure Linux hosts maintain required security coverage.
Contribute to bi-weekly vulnerability reporting for senior leadership, providing status, trends, risks, remediation progress, and missed-target details.
Collaborate with security, infrastructure, platform, and application teams to improve Linux security posture and remediation processes.

Required Skills & Experience

6–8 years of experience in Linux Security, Linux Engineering, Infrastructure Security, or a related role.
Strong hands-on experience with Linux security hardening and vulnerability management.
Experience with Qualys for vulnerability assessment, triage, prioritization, and remediation tracking.
Strong experience with Puppet for configuration management and security remediation.
Experience with Foreman and Linux infrastructure management.
Strong understanding of CIS Benchmarks and enterprise Linux security baselines.
Experience with Linux patch management, maintenance windows, and vulnerability remediation SLAs.
Experience with ServiceNow for change management, patch orchestration, or automated workflows.
Understanding of Jira change management and migration toward automated change/pipeline processes.
Hands-on experience deploying and validating CrowdStrike Falcon or similar endpoint security agents on Linux systems.
Strong understanding of vulnerability lifecycle management, security compliance, remediation tracking, and reporting.
Ability to work effectively with Linux Engineering, Platform Engineering, Cybersecurity, and Infrastructure teams.
Strong analytical, troubleshooting, documentation, and communication skills.

Preferred Skills

Experience supporting large-scale enterprise Linux estates.
Experience with automated patching and configuration management pipelines.
Knowledge of DevSecOps and infrastructure security automation.
Experience preparing vulnerability and compliance reports for senior leadership.
Financial services or other highly regulated enterprise environment experience is an asset.

Key Skills

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More about this job

Responsibilities

Define and enforce Linux hardening and security compliance standards, manage vulnerability triage and remediation using Qualys, Puppet, and Foreman, and coordinate patching and endpoint security agent deployment. Track remediation progress and missed targets, support automated patch orchestration through ServiceNow, and report vulnerability status, risks, and trends to senior leadership.

Requirements

Requires 6–8 years of experience in Linux security, engineering, or infrastructure security, with hands-on expertise in Linux hardening, Qualys, Puppet, Foreman, CIS Benchmarks, and vulnerability remediation. Candidates should also have experience with patch management, ServiceNow and Jira workflows, Linux endpoint security agents, compliance reporting, and cross-functional collaboration.

Skills

Linux Security
Linux Hardening
Qualys
Puppet
Foreman
CIS Benchmarks
Vulnerability Management
Patch Management
ServiceNow
Jira
CrowdStrike Falcon
Endpoint Security
Configuration Compliance
Security Baselines
SLA Management
Infrastructure Security

Visa sponsorship

Not detected in the job text

Keywords

Linux Security
Linux Hardening
Qualys
Puppet
Foreman
CIS Benchmarks
Security Baselines
Vulnerability Management
Vulnerability Remediation
Patch Management
ServiceNow
Jira
CrowdStrike Falcon
Endpoint Security
Configuration Compliance
Linux Engineering
Platform Engineering
Infrastructure Security
Security Compliance
SLA Management
Automated Workflows
Patch Orchestration
DevSecOps
Infrastructure Automation
Enterprise Linux
Maintenance Windows
Vulnerability Reporting
Financial Services

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