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Legacy Infrastructure Vulnerability Engineer

  • ON, Canada
  • Ontario, Canada, Canada

$45 to $55 USD / hour · Contract

This opening has closed.

The original listing is kept below for reference.

Job details

Pay
$45 to $55 USD / hour
Job type
Contract
Closing date
Posting language
English
Posted

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Original job description

Archived listing. The details below describe a past opening.

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.

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

Categories

  • Technology
  • Security & Safety

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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