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Added 25 mins ago
Software Engineer – Messaging & Async Platform Infrastructure
Deel
Canada
Full-time
We are looking for a Software Engineer to join our Infrastructure – Messaging & Async Platform team, focused on building and scaling our messaging and asynchronous communication platform.
Added 25 mins ago
Production Support - Elite Quant Fund- Up to $180,000 CAD + Bonus
Hunter Bond
Montreal, QC
Full-time
🔹Partner with Infrastructure and Engineering teams to improve platform stability and automation
Added 25 mins ago
Director, Digital Platforms & Architecture
TALTEK | TALENT in TECHNOLOGY
Montreal, QC · Greater Montreal Metropolitan Area
Full-time
We are seeking a leader who began their career as a software developer, digital engineer, or solution architect and evolved into leading digital platforms, web technologies, marketing…
Added 25 mins ago
Board Verification Engineer
TekWissen ®
Markham, ON
$60 to $66 CAD / hour
Contract
Collaborate across multiple disciplines (hardware, firmware, software, and/or data center infrastructure) on design requirements and risks, design reviews , proof of concept projects ,…
Added 25 mins ago
Software Engineer – Elite Quant - Up to $200,000 CAD Starting base + Exceptional benefits/bonus package Fund
Hunter Bond
Montreal, QC
Full-time
My client - one of the world's leading quantitative trading firms - is hiring a Platform Engineer / Site Reliability Engineer (SRE) to design, build, and maintain highly scalable, resilient…
Added 41 mins ago
Associate Director - Lead Application Support Specialist, GED Support
RBC
Toronto, ON
Full-time
As a Application Support Engineer for our Quantitative Investment Services, you'll take ownership of the reliability and performance of mission-critical trading platforms. This is more than…
Added 41 mins ago
Industrial Engineer/ Solutions Engineer
Pet Valu
Toronto, ON
Full-time
This position reports to the Director, Supply Chain Strategy & Solutions, the Supply Chain (SC) Solutions Engineer is responsible for identifying, evaluating, designing, and implementing…
Added 56 mins ago
Platform Engineer
Tekshapers
Toronto, ON
Full-time
Strong proficiency in Python for automation, API integrations, infrastructure tooling, agent services, and production scripting
Added 1 hour ago
Senior IAM Engineer
Collabera
Toronto, ON
$90 to $95 CAD / hour
Contract
Experience with automation, scripting, Infrastructure as Code (IaC), or DevOps practices.
Added 1 hour ago
Cloud Vulnerability Remediation Engineer
Insight Global
Toronto, ON
$60 to $82 CAD / hour
Contract
We're looking for an engineer to join the smart infrastructure and cloud team at a leading bank. This role will be a minimum of 6 months and have the opportunity to extend long-term. There…
Added 1 hour ago
Automation Engineer
Yochana
Montreal, QC
Contract
We are seeking an experienced Senior Automation Engineer with strong expertise in Python development, UNIX/Linux scripting, and software deployment automation. The candidate will be…
Added 1 hour ago
Senior Software Developer (Pre-ID Relo)
Intuit
Toronto, ON
Full-time
We are hiring a Senior Software Engineer to join our HCM engineering team in Toronto. You will own the design and delivery of full stack features across our HCM surfaces, working from…
Added 1 hour ago
Senior Platform Engineer (SRE), AI Solutions
System Soft Technologies
Quebec, QC
Contract
…our developers, you're all-in on AI - you believe a platform engineer gets production-quality IaC from agentic tools, and you want to lead the agentic deploy and operate stages of the…
Added 1 hour ago
AWS DevOps and AI/LLM Engineer
BULL-IT SOLUTIONS LTD
Toronto, ON
Full-time
Strong proficiency in Python for automation, API integrations, infrastructure tooling, agent services, and production scripting
Added 1 hour ago
Senior Software Developer (Pre-ID Relo)
Intuit
Toronto, ON
Full-time
We are hiring a Senior Software Engineer to join our HCM engineering team in Toronto. You will own the design and delivery of full stack features across our HCM surfaces, working from…
Added 1 hour ago
Mechanical Engineering Lead, Data Centers
AECOM
Markham, ON
$145,000 to $195,000 CAD / year
Full-time
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 1 hour ago
Senior Systems Engineer
Infosys
ON
Infosys Public Services is seeking a Senior System Engineer. This position will interface with key stakeholders and apply technical proficiency across different stages of the Software…
Added 1 hour ago
Senior Cybersecurity Recovery Architect
Nutrien
Saskatoon, SK
Full-time
Isolated & Clean Room Recovery Engineer secure Isolated Recovery Environments (IRE) and clean room infrastructure
Added 1 hour ago
Senior Software Engineer - Platforms & Infrastructure
Tubi - Canada
Toronto, ON
As a Senior Software Engineer on the Infrastructure team, you will design, build, and operate the core platforms that all Tubi services run on: compute, networking, traffic, deployments,…
Added 1 hour ago
Software Engineer II (SDET)
TD
Toronto, ON
Full-time
Document and verify system components, applications, system infrastructure, security, integration, operability and engineering related architecture designs associated with a program or…
Added 1 hour ago
Senior Associate, Finance Data Analytics & Insights - SLC Management
SLC Management
Toronto, ON · Sun Life Toronto One York
Full-time
…vision and acts as the bridge between the business and our data infrastructure - translating what leaders need into how data is structured, governed, and reported, and then turning that…
Added 1 hour ago
Senior Associate, Finance Data Analytics & Insights - SLC Management
Sun Life
Toronto, ON · Sun Life Toronto One York
Full-time
…vision and acts as the bridge between the business and our data infrastructure - translating what leaders need into how data is structured, governed, and reported, and then turning that…
Added 1 hour ago
Building Operator 3 (Northeast Nova Scotia Correctional Facility)
The Government of Nova Scotia
New Glasgow, NS
Your role is pivotal in supporting the safety and efficiency of our provincial building infrastructure. Your role involves overseeing the daily operation, reporting and maintenance of…
Added 2 hours ago
Intermediate Energy Efficiency Engineer – Buildings
CIMA+
Ottawa, ON
$68,960 to $94,820 CAD / year
Full-time
We are looking for a Senior Energy Efficiency Engineer to join our Buildings team in Ottawa. The successful candidate will play a key role in delivering energy audits, energy management,…
Added 2 hours ago
Senior Energy Efficiency Engineer – Buildings
CIMA+
Ottawa, ON
$97,360 to $133,870 CAD / year
Full-time
We are looking for a Senior Energy Efficiency Engineer to join our Buildings team in Ottawa. The successful candidate will play a key role in delivering energy audits, energy management,…

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

Apply About employer

Applications open in a new tab.

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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