Canada or US Hybrid Full-time USD 150,000 – 190,000 / year

Chemtrade Logistics is hiring an OT System Architect

Responsibilities

  • Design and implement cybersecurity protections for operational technology systems using firewalls, intrusion detection and prevention tools, and endpoint security platforms.
  • Execute the organization's OT cybersecurity strategy, covering network architecture, segmentation, and continuous monitoring across industrial sites.
  • Configure and sustain Cisco networking equipment—including switches, routers, VLANs, and wireless controllers—within OT network infrastructures.
  • Operate and maintain firewall systems from WatchGuard, Fortinet, and Palo Alto to secure OT networks, DMZs, and remote access points.
  • Develop, set up, and deploy OT demilitarized zones to isolate and protect critical control systems.
  • Oversee networking operations in OT environments hosted on Amazon Web Services (AWS).
  • Implement network segmentation aligned with the Purdue Model, following ISA-95, ISA 62443, and NIST SP 800-82 standards to separate IT, OT DMZ, and plant layers.
  • Partner with IT, electrical reliability, and site teams to securely connect IT systems with PLCs, DCS, BMS, and SIS within OT networks.
  • Support and deploy secure remote access methods, including VPNs, jump hosts, and multi-factor authentication.
  • Assist in managing asset inventories, identifying vulnerabilities, detecting intrusions, and responding to incidents using tools like Claroty, Palo Alto, and SIEM platforms.
  • Monitor network performance, resolve technical issues, and ensure high availability of OT systems.
  • Maintain accurate network diagrams, architectural records, and configuration standards for all OT environments.
  • Participate in risk evaluations, compliance audits, and disaster recovery planning for OT systems.
  • Provide technical assistance for OT networking challenges across multiple facility locations.
  • Define and manage Process Control Network domains and associated user access controls.
  • Collaborate with IT infrastructure teams to deploy and maintain security technologies within plant OT environments.
  • Coordinate with external vendors and contractors to ensure their systems comply with organizational security policies.
  • Stay current with evolving cybersecurity threats, industry standards, and emerging technologies to maintain robust OT defenses.
  • Work with IT and engineering groups to integrate OT systems into the broader IT ecosystem securely and in compliance with regulations.
  • Investigate, analyze, and resolve security incidents and alerts using both automated tools and manual analysis techniques.
  • Support audit processes and remediation efforts as needed.
  • Lead efforts to assess the current and emerging threat landscape, delivering clear risk assessments for operational environments.
  • Help create training materials, operational procedures, and documentation for internal and external stakeholders.
  • Demonstrate strong expertise in supporting and resolving issues related to network infrastructure assets.

Benefits

  • Base salary range of $150,000 - $160,000 USD ($180,000 - $190,000 CAD), plus bonus, benefits, and additional incentives. Comprehensive family-friendly benefits and opportunities for career advancement are offered. Compensation stated reflects base pay only.

Compensation

Base salary range of $150,000 - $160,000 USD ($180,000 - $190,000 CAD), plus bonus, benefits, and additional incentives. Compensation stated reflects base pay only.

Work Arrangement

Hybrid — home-based within Canada or the US

Team

Reports to Senior Manager, Electrical Reliability

Other

  • Reports To: Senior Manager, Electrical Reliability
  • Primary Location: Home Based within Canada or US (with 50% travel required)
  • Flexibility to travel (~25%) to plant sites
  • Safety-first mindset when working in chemical plant environments.
About company
Chemtrade Logistics

Chemtrade is a diversified supplier of industrial chemical products and services, operating in two strategic business segments: Sulphur & Water Chemicals (SWC) and Electrochemicals (EC). The company provides high-quality chemical solutions used in a wide range of industries including water and wastewater treatment, food and beverage, pulp & paper, oil & gas, industrial processing, and agriculture.

Driven by the vision to create value through responsible chemistry, Chemtrade emphasizes safety, excellence, and partnership in all operations. The company is committed to Environmental, Social & Governance (ESG) principles and participates in the Responsible Care® initiative, ensuring sustainable and safe practices across manufacturing, transportation, and customer engagement.

With a presence in over 60 locations across North America and internationally, Chemtrade supports its operations through a vast logistical network, technical expertise, and dedicated customer service. The company is publicly traded on the Toronto Stock Exchange under the symbol CHE.UN and has a foundation built on strategic acquisitions and organic growth since its inception in 2001.

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Job Details
Department Engineering
Category security
Posted 5 hours ago