Senior Technical Account Manager, OT Cybersecurity

Dispel

. Serve as senior technical owner for a portfolio of large enterprise and critical infrastructure customers, including multi-site and multi-region deployments .

Posted 10/23/2026full-timeRemote • United StatesSenior💰 $120,000 - $145,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in OT/ICS environments, focusing on secure deployments, risk management, and technical leadership. Proven ability to build relationships with stakeholders while guiding complex technical solutions and ensuring operational integrity.

Highest-signal resume keywords

OT/ICS Security ControlsISA/IEC 62443 KnowledgeTCP/IP Networking SkillsPLCs and HMIs ConfigurationTechnical Leadership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

OT Architecture UnderstandingPacket-Level TroubleshootingIndustrial Protocols KnowledgeNetwork SegmentationChange Management ProcessesRisk Posture AssessmentIncident Response ReadinessDeployment ValidationRoot-Cause AnalysisAsset Visibility/Threat Detection

Soft Skills

Outstanding Communication SkillsExecutive PresenceJudgment on EscalationRelationship BuildingMentoring and Coaching

Tools & Technologies

SCADA/DCS SystemsFirewallsVPNsActive DirectoryZero Trust ArchitecturesVMwareAzureAWSMFASAML/OIDC

Certifications & Qualifications

GICSPGRIDGCIPISA/IEC 62443 Cybersecurity ExpertCISSPCCNP

Industry Keywords

Critical InfrastructureEnterprise AccountsRegulated EnvironmentsOperational TechnologyIndustrial Operations

Tech Stack

Tools & technologies

AWSAzureCyber SecurityDNSFirewallsSwitchingTCP/IPVMware

About the role

Key responsibilities & impact

Serve as senior technical owner for a portfolio of large enterprise and critical infrastructure customers, including multi-site and multi-region deployments
Build trusted-advisor relationships with OT/controls engineering, plant operations, IT/network teams, security operations, and executive leadership
Maintain documented understanding of customer OT architecture, asset inventory, network topology, vendor ecosystem, and risk posture
Lead executive business reviews and technical roadmap sessions tied to measurable risk reduction and operational outcomes
Design and validate deployments aligned to the Purdue Enterprise Reference Architecture and ISA/IEC 62443 zones and conduits, including industrial DMZs
Guide deployments involving PLCs, RTUs, HMIs, historians, engineering workstations, and safety systems
Plan and execute changes within change-management, maintenance-window, and MOC processes without unplanned operational impact
Advise on secure third-party and vendor remote access, privileged access, and zero trust architectures for OT
Act as final technical escalation point for complex network, identity, security, and platform issues
Troubleshoot at packet level across routing, switching, VLANs, NAT, firewalls, VPNs, DNS, and certificate/PKI issues
Diagnose industrial protocols and understand how security controls affect them
Lead root-cause analyses and incident post-mortems; drive durable fixes with Support, Engineering, and customers
Advise on OT security program maturity, segmentation, access control, monitoring, and incident response readiness
Map platform capabilities to ISA/IEC 62443, NIST SP 800-82, NIST CSF, NERC CIP, TSA security directives, and CISA guidance
Track the ICS threat landscape and translate it into practical customer recommendations
Support customer audits, assessments, and security questionnaires
Represent customer needs to Product and Engineering through prioritized field insights and requirements
Partner with Sales and Account Management on renewals, expansions, and complex upsells
Author reference architectures, deployment playbooks, runbooks, and best-practice guides
Mentor and coach TAMs and customer-facing engineers
Operate autonomously, lead complex deployments and escalations, set technical standards, and improve the TAM function

Requirements

What you’ll need

7+ years in technical customer-facing or hands-on engineering roles, with a meaningful portion focused on OT/ICS
Practitioner-level, hands-on experience in industrial environments configuring, supporting, or securing PLCs, HMIs, SCADA/DCS systems, historians, and engineering workstations in live production settings
Deep, hands-on experience deploying and operating OT and IT security controls, including secure remote access, zero trust network access, privileged access management, network segmentation, firewalls, and OT asset visibility/threat detection
Working knowledge of ISA/IEC 62443 and NIST SP 800-82
Strong practitioner-level networking skills: TCP/IP, routing and switching, VLANs, subnetting, NAT, firewall policy, VPNs, and packet-level troubleshooting
Working knowledge of industrial protocols including Modbus, DNP3, EtherNet/IP, PROFINET, OPC UA, and similar protocols
Proven track record as lead technical owner for large enterprise or critical infrastructure accounts in regulated, mission-critical environments
Executive presence and outstanding communication skills; able to explain complex technical risk to controls engineers, security teams, and executives
Ability to operate with minimal direction, prioritize across a demanding portfolio, and exercise sound judgment on escalation
Preferred: experience at an OT/ICS cybersecurity company
Preferred: background in a plant, utility, industrial operations environment, system integrator, or automation OEM
Preferred: certifications such as GICSP, GRID, GCIP, ISA/IEC 62443 Cybersecurity Expert, CISSP, CCNP, or equivalent
Preferred: familiarity with SAML/OIDC, Active Directory/Entra ID, MFA, VMware, Azure, and AWS
Preferred: experience in a SaaS or high-growth startup environment
Preferred: eligibility for or experience working in environments requiring U.S. security clearance or background screening

Benefits

Comp & perks

401(k) with company match
Generous paid time off and holidays
Performance bonus and equity eligible
Remote work
Medical, vision, dental insurance
Performance-based rewards and recognition
Role development and opportunities for development into other roles