Position Summary We are seeking a Senior Cybersecurity Specialist with deep expertise in network security and strong hands-on networking skills. This role is responsible for ensuring a security-by-design approach across the organization’s infrastructure, with a primary focus on network environments.

The position emphasizes continuous security validation, configuration governance, and threat mitigation. While not a primary network architect role, the specialist contributes to architecture reviews and provides expert guidance to ensure secure design principles are consistently applied.

Key Responsibilities

· Lead detection, analysis, and response to cybersecurity threats and incidents

· Enforce and promote a security-by-design approach across all network and infrastructure initiatives (core responsibility)

· Conduct ongoing reviews of network and system configurations to ensure alignment with security best practices

· Define, implement, and validate network security controls (segmentation, firewalls, zero trust, etc.)

· Identify vulnerabilities and drive remediation efforts across network environments

· Act as a senior escalation point for complex network-related security issues

· Troubleshoot advanced network and security problems (routing, switching, VPNs, firewall policies)

· Review and challenge network architecture designs to ensure security requirements are embedded from the outset

· Provide targeted advisory input into network architecture and infrastructure planning, as needed (non-primary responsibility)

· Support audits, risk assessments, and compliance initiatives





· Mentor team members and advocate for secure configuration standards

Required Qualifications

· 7–10+ years in cybersecurity, with strong exposure to network environments

· Deep understanding of network protocols and architecture (TCP/IP, routing, switching, DNS, VPNs)

· Proven experience with network security technologies (firewalls, IDS/IPS, NAC, segmentation)

· Familiar with modern detection & inline enforcement

· Strong experience in configuration reviews and security validation practices

· Hands-on troubleshooting skills in complex enterprise networks

· Solid understanding of modern threats, attack vectors, and defensive strategies

· Experience working with managed detection and response (MDR) services and collaborating with external SOC providers

· Ability to influence technical decisions without direct ownership

Preferred Qualifications

· Experience participating in or reviewing network architecture design

· Certifications such as CISSP, CCNP Security, CCSP, or equivalent

· Experience with cloud network security (AWS, Azure, GCP)

· Familiarity with SIEM, EDR, and monitoring platforms

· Scripting or automation experience (Python, PowerShell)

What Success Looks Like

· Security is consistently embedded early in network and infrastructure design (not retrofitted)

· Configuration reviews systematically prevent misconfigurations and reduce risk exposure

· Network-related incidents are minimized and resolved efficiently

· Architecture decisions reflect robust security principles, even when driven by other teams

· The organization maintains a mature and proactive security posture

📌 Senior Cyber Security Specialist (Quebec City)
🏢 NDT Global
📍 Quebec City