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OT Network Segmentation & Security Architect

  • Toronto, ON, Canada

Full-time

This opening has closed.

The original listing is kept below for reference.

Job details

Job type
Full-time
Closing date
Experience
10+ years of experience supporting industrial/manufacturing environments.
Posting language
English
Posted

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Original job description

Archived listing. The details below describe a past opening.

Job Title: OT Network Segmentation & Security Architect

Location: Florencevile, Canada

Job Type: Full-Time Permanent

Must Have Technical/Functional Skills:

OT Operations & Manufacturing Systems Expertise

  • 10+ years of experience supporting industrial/manufacturing environments.
  • Hands-on knowledge of SCADA, HMI, Historian/PI systems, FactoryTalk, ThinManager, OT infrastructure, virtualization, backup/recovery, and industrial networking.

OT Cybersecurity Knowledge

  • Strong understanding of ISA/IEC 62443 standards and OT security principles.
  • Experience with SOC interactions, incident response, secure remote access, privileged access management (PAM), and Zero Trust security controls.

Identity & Access Management (IAM)

  • Hands-on experience with Active Directory, Group Policy, DNS, DHCP, Microsoft Entra ID, MFA, Conditional Access, and enterprise IAM operations.
  • Experience in IT/OT identity separation environments is highly desirable.

Cloud & Azure Operations

  • Understanding of Azure infrastructure, Landing Zones, subscriptions, policies, vWAN, and cloud operations/support models.
  • Ability to define operational runbooks and support frameworks for cloud platforms.

GitOps & Automation Literacy

  • Working knowledge of Git-based workflows including pull requests, branch protections, approval gates, and GitOps operating models.
  • Ability to design and document operational procedures around GitOps-driven identity management.

Roles & Responsibilities:

  1. Own Operational Readiness & Service Transition
  • Ensure all OT solutions are supportable in production, define operational acceptance criteria, transition plans, and manage hypercare through BAU acceptance.
  1. Design OT Service Management Framework
  • Lead the design of OT-specific ServiceNow processes including incident, request, access, change, problem, and knowledge management workflows.
  1. Establish OT Support & Service Coverage Model
  • Build the support operating model, including business-hours support, on-call escalation, SLAs, incident response processes, and future 24x7/follow-the-sun support blueprint.
  1. Drive Operational Governance & Reporting
  • Define governance structure, RACIs, escalation paths, KPIs, dashboards, service reviews, and ensure complete operational visibility through ServiceNow.
  1. Operationalize Identity, GitOps & Cloud Services
  • Convert OT identity, GitOps, and Azure platform designs into sustainable operating procedures, runbooks, monitoring, and support models.
  1. Lead Monitoring, Incident Readiness & Cyber Response Coordination
  • Define monitoring requirements, alert ownership, incident workflows, escalation procedures, and ensure readiness across OT, SOC, and security teams.
  1. Build the Plant Onboarding & Hypercare Factory
  • Create a repeatable onboarding model for OT plants, including readiness checklists, deployment standards, stabilization support, and lessons learned for global rollout.
  1. Act as the MSP’s OT Operations Authority
  • Serve as the embedded operational architect within the program team, influencing design decisions, challenging non-operable solutions, coordinating stakeholders, and ensuring scalable, supportable OT operations.
More about this job

Responsibilities

Lead operational readiness and service transition for OT solutions, including service management processes, support coverage, governance, monitoring, incident response, and cloud and identity operations. Establish a repeatable plant onboarding and hypercare model, and act as the operational authority to ensure OT solutions are scalable and supportable.

Requirements

Requires 10+ years supporting industrial or manufacturing environments, with hands-on knowledge of OT systems, infrastructure, and industrial networking. Candidates should also have strong OT cybersecurity and IAM expertise, familiarity with Azure operations and Git-based workflows, and the ability to define operational procedures and support models.

Skills

  • OT Operations
  • Manufacturing Systems
  • SCADA
  • HMI
  • Industrial Networking
  • OT Cybersecurity
  • ISA/IEC 62443
  • Identity and Access Management
  • Active Directory
  • Microsoft Entra ID
  • Azure Operations
  • GitOps
  • ServiceNow
  • Incident Response
  • Operational Readiness
  • Service Management

Visa sponsorship

Not detected in the job text

Categories

  • Technology
  • Security & Safety
  • Manufacturing
  • Management & Leadership

Keywords

  • OT Network Segmentation
  • OT Cybersecurity
  • SCADA
  • HMI
  • Historian
  • PI Systems
  • FactoryTalk
  • ThinManager
  • Virtualization
  • Backup and Recovery
  • Industrial Networking
  • ISA/IEC 62443
  • SOC
  • Incident Response
  • Secure Remote Access
  • Privileged Access Management
  • Zero Trust
  • Active Directory
  • Group Policy
  • DNS
  • DHCP
  • Microsoft Entra ID
  • MFA
  • Conditional Access
  • Azure
  • Landing Zones
  • Virtual WAN
  • GitOps
  • ServiceNow
  • Operational Readiness

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