Key Responsibilities
• Lead and support infrastructure-related PoC/RFP/RFE initiatives across diverse platforms.
• Administer applications with full lifecycle ownership, ensuring seamless request flow and network integration.
• Manage and troubleshoot network and security configurations including routers, switches, load balancers, proxies, firewalls, DMZ setups, IPs, ports, subnets, MAC addresses, and authentication protocols (RBAC, Kerberos, SSO, LDAP, AD).
• Perform server administration across Windows, Linux, Mac, and vendor ecosystems (e.g., CA, BMC, IBM DataPower).
• Develop and maintain automation scripts using PowerShell, Python, Perl, or Shell to streamline operations.
• Collaborate with DevOps teams to support CI/CD pipelines and cloud infrastructure.
• Engage with stakeholders and customers to understand requirements, provide updates, and ensure satisfaction.
• Analytical, strong support and troubleshoot IoT/OT devices across multiple platforms (Android, Windows, Linux, Unix, iOS)
• Work in a globally distributed team to provide innovative and robust solutions
• Work with SecDesign teams to design and apply appropriate controls and processes for integrated solutions
• Work with technology partners, stakeholders and SMEs to implement SecDesign approved solutions
• Provide support on existing IoT systems, manage upgrades and troubleshoot problems
• Ensure production systems are compliant within Hygiene programmed
• Collaborate with vendors to future proof our systems Required Skills & Competencies
• 5+ years experience.
• Application Administration – Excellent
- End-to-end request flow with network integration




• Network & Security – Excellent
- Deep understanding of network layers, configs, and authentication flows
• Server Administration – Excellent -Platform-agnostic, including vendor-specific systems
• Automation Scripting – Excellent
- Strong logic and scripting in PowerShell/Python/Perl/Shell
• Communication Skills – Excellent
- Clear, concise, and effective communication
• Customer/Stakeholder Mgmt – Excellent
- Strong interpersonal and stakeholder engagement skills
• CI/CD DevOps – Proficient
- Familiarity with DevOps practices and tools
• Cloud Technology – Proficient
- Exposure to cloud platforms and services
• IoT/OT Devices – Excellent
- Platform-agnostic troubleshooting and support Preferred Qualifications Tools & Platforms
• Tenable, Qualys, Rapid7, Nessus
• Microsoft Defender, CrowdStrike (exposure management)
• ServiceNow (Vuln Response module)
• Tanium, BigFix, SCCM (patching)Practices
• Vulnerability scanning & assessment
• Patch management & remediation
• Risk scoring (CVSS, EPSS)
• Threat intelligence integration
• Configuration hardening (CIS benchmarks)
• Continuous monitoring & compliance Domains
• Cloud (AWS, Azure, GCP vulnerability posture)
• On-prem infrastructure (Windows/Linux)
• Network devices & appliances
• Containers & Kubernetes security
• IoT/OT vulnerability management (if applicable, solid differentiator in

your profile
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• Bachelor’s or master’s degree in computer science, Information Technology, or related field.
• Certifications in network/security/cloud technologies (e.g., CCNA, AWS, Azure, etc.) are a plus.

📌 Infrastructure Engineer (Montreal)
🏢 Astek
📍 Montreal