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AceStack

OT Network Segmentation & Security Architect: Florencevile, New Brunswick, Canada : FTP

Florenceville-Bristol, NB, Canada

Job type: Full-time
Apply by: Oct 25, 2026
Experience: 10+ years of experience supporting industrial or manufacturing environments
Posting language: English
Posted: Sep 25, 2026

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Original job description

Role: OT Network Segmentation & Security Architect

Location: Florencevile, New Brunswick, Canada

Work Arrangement: Onsite

Employment Type: Full-Time FTE

Job Summary

We are seeking a senior OT (Operational Technology) Network Segmentation & Security Architect with deep experience in industrial/manufacturing environments, OT cybersecurity, identity and access management, cloud operations, and operational service transition. The ideal candidate will combine strong hands-on OT technical expertise with operational architecture, governance, service management, and stakeholder leadership capabilities. This role will be responsible for ensuring OT solutions are secure, operationally ready, supportable in production, and scalable across manufacturing plants.

Must-Have Technical/Functional Skills

OT Operations & Manufacturing Systems

10+ years of experience supporting industrial or manufacturing environments

Strong hands-on experience with SCADA, HMI, Historian/PI systems, FactoryTalk, ThinManager, and OT infrastructure

Experience with OT virtualization, backup/recovery, and industrial networking

Strong understanding of plant-floor/OT operational environments and manufacturing systems

OT Cybersecurity

Strong knowledge of OT cybersecurity principles and ISA/IEC 62443 standards

Experience with OT network segmentation and secure architecture

Experience working with SOC teams, incident response, and cybersecurity operations

Experience with secure remote access and Privileged Access Management (PAM)

Knowledge of Zero Trust security controls and OT security practices

Identity & Access Management (IAM)

Hands-on experience with Active Directory (AD), Group Policy, DNS, and DHCP

Experience with Microsoft Entra ID, MFA, and Conditional Access

Strong understanding of enterprise IAM operations

Experience with IT/OT identity separation is highly desirable

Cloud & Azure Operations

Working knowledge of Microsoft Azure infrastructure and cloud operations

Experience with Azure Landing Zones, subscriptions, policies, and vWAN

Understanding of cloud operations and support models

Ability to define operational runbooks, procedures, and support frameworks for Azure platforms

GitOps & Automation

Working knowledge of Git-based workflows and GitOps operating models

Experience with pull requests, branch protection, approval gates, and controlled deployment processes

Ability to design and document operational procedures for GitOps-driven identity and infrastructure management

Roles & Responsibilities

Operational Readiness & Service Transition

Own operational readiness for OT solutions and ensure production supportability

Define operational acceptance criteria, transition plans, and service-readiness requirements

Lead hypercare activities through successful transition to Business-as-Usual (BAU) operations

OT Service Management Framework

Design and implement OT-specific ServiceNow processes

Establish workflows for Incident, Request, Access, Change, Problem, and Knowledge Management

Ensure OT service management processes align with enterprise standards and operational requirements

OT Support & Service Coverage Model

Develop the OT support operating model, including business-hours support and on-call escalation

Define SLAs, escalation procedures, incident response processes, and support responsibilities

Develop a future-state 24x7/follow-the-sun support model

Operational Governance & Reporting

Define governance structures, RACI matrices, escalation paths, KPIs, and operational dashboards

Establish service review processes and operational reporting

Ensure complete operational visibility through ServiceNow

Identity, GitOps & Cloud Operationalization

Convert OT identity, GitOps, and Azure platform designs into sustainable operational procedures

Develop runbooks, monitoring requirements, support processes, and operational controls

Ensure solutions are scalable, supportable, and aligned with enterprise standards

Monitoring, Incident Readiness & Cybersecurity Response

Define monitoring and alerting requirements for OT environments

Establish alert ownership, incident workflows, and escalation procedures

Coordinate incident readiness across OT, SOC, infrastructure, and cybersecurity teams

Plant Onboarding & Hypercare

Develop a repeatable OT plant onboarding framework for global deployment

Create readiness checklists, deployment standards, stabilization procedures, and hypercare processes

Capture lessons learned and continuously improve the plant rollout model

OT Operations Architecture & Stakeholder Leadership

Act as the OT Operations authority within the program team

Provide operational architecture guidance and influence solution design decisions

Identify and challenge solutions that are not operationally viable or supportable

Coordinate across OT, IT, cybersecurity, infrastructure, plant operations, and service management teams

Ensure OT operations are scalable, secure, and supportable across the organization

Generic Managerial Skills

Strong stakeholder management and communication skills

Operational governance and service transition experience

Resource planning and operational leadership

Strong problem-solving and decision-making abilities

Experience managing cross-functional technical teams and stakeholders

Continuous improvement and process optimization mindset

Ability to operate effectively in complex industrial/manufacturing environments

Preferred/Additional Skills

ServiceNow ITSM/ITOM experience

Experience with OT/IT convergence programs

Experience implementing OT network segmentation initiatives

Experience with manufacturing plant technology transformations

Knowledge of Zero Trust architecture and cybersecurity frameworks

Experience working with managed service providers (MSPs)

Experience supporting large-scale/global OT transformation programs

Apply About employer

More about this job

Responsibilities

Lead operational readiness and service transition for secure OT solutions, including service management processes, support models, governance, monitoring, and incident response. Develop scalable plant onboarding and operational procedures for OT identity, GitOps, and Azure platforms while guiding architecture and coordinating stakeholders across OT, IT, cybersecurity, and plant operations.

Requirements

Requires 10+ years supporting industrial or manufacturing environments, with hands-on expertise in OT systems and infrastructure, OT cybersecurity and segmentation, and identity and access management. Candidates should also have working knowledge of Azure operations and GitOps, plus experience in service transition, operational governance, and cross-functional stakeholder leadership.

Skills

OT Network Segmentation
OT Cybersecurity
SCADA
HMI
Historian/PI Systems
FactoryTalk
ThinManager
ISA/IEC 62443
Identity and Access Management
Active Directory
Microsoft Entra ID
Microsoft Azure
GitOps
ServiceNow
Operational Readiness
Incident Response

Visa sponsorship

Not detected in the job text

Keywords

Operational Technology
OT Network Segmentation
OT Cybersecurity
SCADA
HMI
Historian/PI Systems
FactoryTalk
ThinManager
ISA/IEC 62443
Privileged Access Management
Zero Trust
Active Directory
Group Policy
DNS
DHCP
Microsoft Entra ID
Multi-Factor Authentication
Conditional Access
Microsoft Azure
Azure Landing Zones
Azure Virtual WAN
GitOps
ServiceNow
Incident Response
Operational Readiness
Service Transition
Manufacturing
Industrial Networking
OT/IT Convergence
Managed Service Providers

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