Senior OT Cybersecurity & Network Security Analyst
$104,759–$130,949 year
HybridScarborough Village, Ontario, Canada
Job Summary
Discover and document OT networks, assets, vendors, and connectivity paths while building and maintaining asset inventories, vendor access logs, and network diagrams. Review segmentation, firewall rules, VPN access, and remote connectivity to assess cybersecurity risks across Ewon, Moxa, DCS, PLCs, SCADA, and engineering workstations. Define security controls for remote and vendor access, monitoring, logging, and incident response while supporting implementation of visibility tools like Nozomi, Claroty, Dragos, or Microsoft Defender for IoT. Create risk registers, remediation plans, dashboards, and executive reports to improve the OT security posture across paper mills, corrugated plants, and warehouses. Work closely with plant operations, engineering, infrastructure, and vendor teams to execute security reviews for capital projects and automation initiatives.
Required Qualifications
- Experience in cybersecurity, network security, infrastructure, OT security, industrial control systems, or manufacturing technology
- Strong knowledge of networking concepts including firewalls, switches, routing, VLANs, VPN, segmentation, access control lists, logging, and monitoring
- Familiarity with OT systems such as Ewon, Moxa, DCS, PLCs, SCADA, sensors, engineering workstations, HMI systems, historian systems, and industrial servers
- Experience with vendor access governance, risk assessment, network security reviews, incident response, and security documentation
- Ability to work with plant operations, engineering teams, vendors, cybersecurity teams, and infrastructure teams
- Strong communication skills and ability to explain cybersecurity risks in simple business language
- Candidates who are 18 years or older are required to complete a criminal and background check
Desired Qualifications
- Experience with OT visibility and monitoring tools such as Nozomi Networks, Claroty, Dragos, Microsoft Defender for IoT, or similar platforms
- Experience with passive OT monitoring, network taps, SPAN ports, OT sensors, asset discovery, vulnerability identification, and anomaly detection
- Knowledge of NIST SP 800-82, ISA/IEC 62443, NIST Cybersecurity Framework, ISO 27001, or CISA cybersecurity guidance
- Experience in manufacturing, industrial automation, paper mills, corrugated packaging, or process manufacturing environments
- Certifications such as CISSP, CISM, CRISC, GICSP, GRID, ISA/IEC 62443, Fortinet, Cisco CCNA/CCNP, or similar certifications
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