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About the Role

We are looking for a Senior OT Cybersecurity & Network Security Analyst to improve cybersecurity visibility, governance, and controls across our Operational Technology environments. This role will support the discovery of OT assets and assessment of cyber risk in manufacturing OT environments across paper mills, corrugated plants, and warehouses.

Responsibilities

• Discover and document OT networks, assets, systems, vendors, and connectivity paths.
• Build and maintain OT asset inventory, vendor access inventory, and OT network diagrams.
• Review OT network segmentation, firewall rules, VPN access, remote access, and vendor connectivity.
• Support implementation of OT network visibility and monitoring tools such as Nozomi, Claroty, Dragos, Microsoft Defender for IoT, or similar platforms.
• Assess cybersecurity risks across OT systems including Ewon, Moxa, DCS, PLCs, SCADA, sensors, engineering workstations, servers, and vendor-managed systems.
• Define OT security controls for remote access, vendor access, monitoring, logging, segmentation, access reviews, and incident response.
• Work with plant, engineering, infrastructure, network, cybersecurity, and vendor teams to improve OT security posture.
• Support OT cybersecurity reviews for plant projects, capital projects, automation initiatives, and vendor solutions.
• Create OT risk registers, remediation plans, exception records, dashboards, and executive-level reporting.
• Support OT incident response planning and coordination with Security Operations, Network, Plant Operations, Engineering, and vendors.

Requirements

• 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.

Skills

• Nozomi Networks
• Claroty
• Dragos
• Microsoft Defender for IoT
• Passive OT monitoring
• Network taps
• SPAN ports
• OT sensors
• Asset discovery
• Vulnerability identification
• Anomaly detection
• NIST SP 800-82
• ISA/IEC 62443
• NIST Cybersecurity Framework
• ISO 27001
• CISA cybersecurity guidance
• CISSP
• CISM
• CRISC
• GICSP
• GRID
• ISA/IEC 62443
• Fortinet
• Cisco CCNA/CCNP

Location

• North America

Work Type

• Full-time

Experience Level

• Senior

Salary/Compensations

• $104,759 - $130,949 per year

Benefits

• Comprehensive health, dental and vision coverage (dependents included)
• Teamwork-focused culture with sustainability initiatives and social events
• A culture of appreciation through a point-based recognition
• Opportunities for advancement and internal movement
• Education assistance for continuous skill development
• Academic scholarships for employees’ children
• Safety equipment and PPE support program
• Retirement savings and wellness initiatives
• Employee Assistance Program (EAP)

About the Company

• At Atlantic Packaging, every box tells a story and yours begins here.
• As a proudly Canadian-owned company with over 80 years of excellence in the corrugated packaging industry with operations within North America (Ontario, Quebec and United States), we’re committed to sustainability, customer excellence and community impact.
• Since 1945, we’ve supported local jobs and built a legacy of trust with our clients and team members.
• At Atlantic, your ideas matter, your growth is supported and your work makes a real impact.

Equal Opportunity

• Atlantic Packaging is committed to fostering an inclusive, accessible and respectful environment for all candidates.
• If you require accommodation during the hiring process, please contact our Talent Acquisition team—we’re here to support you.