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Added 49 mins ago
ET
DevOps Engineer/SRE
Envision Technology Solutions
Toronto, ON
- Contract
…systems integration SQL Server and database troubleshooting Windows Server and distributed application troubleshooting Monitoring| telemetry and performance engineering Exposure to…
Added 1 hour ago
M
Cloud & AI Solution Engineer
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Toronto, ON
- Full-time
…challenges in the AI era? Join us as a Cloud & AI Solution Engineer - Azure Platform for enterprise and commercial customers at…
Added 6 hours ago
IC
Cloud Infrastructure & DevSecOps Engineer
InfoTrack Canada
Toronto, ON
- Full-time
As the Cloud Infrastructure and DevSecOps Engineer, you will own the end-to-end cloud infrastructure and deployment pipeline for InfoTrack Canada. You will unblock critical environment…
Added 7 hours ago
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- Full-time
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Added 8 hours ago
HR
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Toronto, ON
- Full-time
Experience developing software on Windows, Linux, and Unix platforms.
Added 8 hours ago
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Software Analyst
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Experience developing software on Windows, Linux, and Unix platforms.
Added 15 hours ago
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Cross-Platform OS Familiarity: Technical comfort supporting Windows desktop applications alongside non-standard Linux base development images (Ubuntu, Rocky Linux) and enterprise endpoint…
Added 16 hours ago
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JAMS Platform Engineer
Apptoza Inc.
Toronto, ON
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Seeking a hands-on engineer to drive the reliability| automation and modernization of the enterprise JAMS workload automation platform. The role combines JAMS platform expertise with…
Added 16 hours ago
C
HW & SW Applications Admin 1
Celestica
Toronto, ON
- Full-time
Cross-Platform OS Familiarity: Technical comfort supporting Windows desktop applications alongside non-standard Linux base development images (Ubuntu, Rocky Linux) and enterprise endpoint…
Added 17 hours ago
GS
Legacy Infrastructure Vulnerability Engineer
GraceMark Solutions
ON · Ontario, Canada
- $45 to $55 USD / hour
- Contract
The Legacy Infrastructure Vulnerability Engineer will manage vulnerability remediation across traditional enterprise technology estates, with primary focus on Windows, Linux, Active…
Added 17 hours ago
BS
Tech Transformation - Application Network Engineer
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Toronto, ON
- Contract
Role Title: Tech Transformation - Application Network Engineer
Added 17 hours ago
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SRE/ Platform Engineer
Quantum World Technologies Inc.
ON · Ontario, Canada
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Seeking a hands-on engineer to drive the reliability | automation and modernization of the enterprise JAMS workload automation platform. The role combines JAMS platform expertise with…
Added 17 hours ago
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Senior Water Resources Engineer
KGS Group
Mississauga, ON
- Full-time
We are looking for a Senior Water Resources Engineer to join our Water Resources Department in our Mississauga office. In this role you will be working alongside industry leaders that have…
Added 17 hours ago
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Ingenieur Qualite / Quality Engineer
Safran
Kirkland, QC
- Full-time
Compétences informatiques: Familier avec le Système d'exploitation Windows ®, Office XP®, et les systèmes MRP.
Added 17 hours ago
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Senior Production Engineer Scheduling
BNP Paribas
Montreal, QC
- Full-time
…Global Head of Automation Services in EMEA, the production Engineer will be accountable for the technical support as well as the projects delivery for the Production and non-production…
Added 17 hours ago
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Principal Cloud Engineer
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Toronto, ON · BMOPLACE
- Full-time
We are seeking an enthusiastic, passionate professional for a Principal Cloud Engineer position with 8+ years of experience in multiple large scale Azure enterprise environments. We are…
Added 18 hours ago
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Building Infrastructure Project Manager
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Liaise with operations to schedule work windows, minimize disruptions, and ensure service continuity.
Added 18 hours ago
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Senior Mechanical Engineer
Raise
Burnaby, BC
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Added 19 hours ago
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Sr. Engineer - Vulnerability Management
OnX
Canada
- Full-time
We are seeking a highly skilled Sr. Engineer - Vulnerability Management to join our growing Cybersecurity team. In this role, you will be responsible for identifying, assessing,…
Added 20 hours ago
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Sr. Engineer System administrator
OnX
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- Full-time
…enjoys managing mission-critical server infrastructure across Windows, Linux, and cloud…
Added 20 hours ago
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Site Reliability Engineer
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The OPS Site Reliability Engineer will be a focal role owning and ensuring the fluent operations of Managed Services offerings in the KPMG production cloud environment. The role will be…
Added 21 hours ago
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Added 22 hours ago
QA Automation Engineer – SmartBear & Playwright
Capco
Toronto, ON
Capco is looking for a QA Automation Engineer with hands-on experience in SmartBear TestComplete and Playwright to support a major application modernization initiative.
Added 23 hours ago
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Infrastructure Architect
MethodHub
Toronto, ON
- Contract
The Infrastructure Architect is the senior technical engineer for Client’s server, identity, cloud, and network infrastructure, combining deep hands-on design and engineering with…
Added 23 hours ago
PL
Infrastructure Engineer – Network, Security & IoT/OT
PineQ Lab Technology
Montreal, QC
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As a Full Stack Infrastructure Engineer, you will be responsible for the design, analysis, implementation and support of technology systems for the China offices. This will include working…

GraceMark Solutions

Legacy Infrastructure Vulnerability Engineer

ON, Canada
Ontario, Canada, Canada

$45 to $55 USD / hour · Contract

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Job details

Pay: $45 to $55 USD / hour
Job type: Contract
Apply by: Nov 5, 2026
Posting language: English
Posted: Oct 6, 2026

Original job description

Role Summary

The Legacy Infrastructure Vulnerability Engineer will manage vulnerability remediation across traditional enterprise technology estates, with primary focus on Windows, Linux, Active Directory, middleware, and centrally managed patching. The role will analyze findings, coordinate remediation with platform owners, troubleshoot patching constraints, and validate closure while maintaining service stability and change discipline.

Primary focus: Windows, Linux, Active Directory, middleware, and centralized patching coordination.

Key Responsibilities

· Analyze vulnerability findings affecting Windows servers, Linux platforms, Active Directory, middleware, and other on-premises or legacy infrastructure components.

· Validate asset ownership, operating-system version, vulnerability applicability, patch availability, exposure, remediation path, maintenance window, and service criticality before assigning action.

· Coordinate centralized patching and configuration remediation with server, directory services, middleware, database, network, application, and operations teams.

· Prepare remediation plans that group compatible fixes, identify prerequisites and dependencies, minimize operational disruption, and align execution with approved change-management processes.

· Troubleshoot failed deployments, unsupported platforms, agent issues, repository or package problems, reboot dependencies, configuration conflicts, and recurring scan detections.

· Track assigned findings against remediation SLAs, maintain accurate status and evidence, escalate overdue items, and provide actionable progress updates to the Vulnerability Lead.

· Support rescans and technical validation after remediation; investigate residual findings and coordinate corrective action until verified closure or approved exception.

Required Skills and Experience

· Strong administration and patching knowledge across Windows and Linux platforms.

· Working knowledge of Active Directory, middleware, enterprise patching tools, and change management.

· Ability to interpret vulnerability evidence, security advisories, patches, configuration guidance, and scan results.

· Experience coordinating remediation across large, distributed infrastructure estates.

· Structured troubleshooting, documentation, stakeholder coordination, and operational discipline.

Success Measures

Successful performance will be evaluated through timely risk reduction, SLA adherence, accuracy of records and reporting, quality of stakeholder coordination, audit readiness, and measurable improvement in remediation efficiency and control effectiveness.

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More about this job

Responsibilities

Analyze and coordinate remediation of vulnerabilities across Windows, Linux, Active Directory, middleware, and other legacy infrastructure, including centralized patching and configuration changes. Track remediation against SLAs, troubleshoot deployment issues, coordinate change execution, and validate closure or approved exceptions.

Requirements

Requires strong Windows and Linux administration and patching knowledge, plus working knowledge of Active Directory, middleware, enterprise patching tools, and change management. Candidates should be experienced in interpreting vulnerability evidence and coordinating remediation across distributed infrastructure, with structured troubleshooting, documentation, and stakeholder coordination skills.

Skills

Windows Administration
Linux Administration
Vulnerability Remediation
Patch Management
Active Directory
Middleware
Enterprise Patching Tools
Change Management
Vulnerability Analysis
Infrastructure Troubleshooting
Remediation Planning
SLA Tracking
Technical Validation
Stakeholder Coordination
Documentation
Configuration Management

Visa sponsorship

Not detected in the job text

Keywords

Windows
Linux
Active Directory
Middleware
Legacy Infrastructure
Vulnerability Management
Vulnerability Remediation
Centralized Patching
Enterprise Patching Tools
Patch Deployment
Configuration Remediation
On-Premises Infrastructure
Vulnerability Findings
Security Advisories
Operating Systems
Change Management
Remediation SLAs
Maintenance Windows
Asset Ownership
Service Criticality
Repository And Package Issues
Agent Issues
Reboot Dependencies
Scan Results
Rescans
Technical Validation
Audit Readiness
Risk Reduction
Control Effectiveness

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