Senior Technical Account Manager, OT Cybersecurity

This is a fully remote position, open to applicants in United States.

📋 Description

• Act as the senior technical owner for a portfolio of significant enterprise and critical infrastructure clients, featuring multi-site and multi-region deployments.

• Foster trusted-advisor relationships with OT/controls engineering, plant operations, IT/network teams, security operations, and executive leadership.

• Keep a documented comprehension of customer OT architecture, asset inventory, network topology, vendor ecosystem, and risk posture.

• Facilitate executive business reviews and technical roadmap sessions focused on quantifiable risk reduction and operational outcomes.

• Design and verify deployments in accordance with the Purdue Enterprise Reference Architecture and ISA/IEC 62443 zones and conduits, including industrial DMZs.

• Provide guidance on deployments involving PLCs, RTUs, HMIs, historians, engineering workstations, and safety systems.

• Plan and implement changes within change-management, maintenance-window, and MOC processes without unforeseen operational impact.

• Offer advice on secure third-party and vendor remote access, privileged access, and zero trust architectures for OT.

• Serve as the final technical escalation point for complex network, identity, security, and platform challenges.

• Troubleshoot at the packet level across routing, switching, VLANs, NAT, firewalls, VPNs, DNS, and certificate/PKI matters.

• Analyze industrial protocols and grasp how security controls influence them.

• Lead root-cause analyses and incident post-mortems; drive sustainable fixes with Support, Engineering, and clients.

• Advise on OT security program maturity, segmentation, access control, monitoring, and incident response preparedness.

• Align platform capabilities with ISA/IEC 62443, NIST SP 800-82, NIST CSF, NERC CIP, TSA security directives, and CISA guidance.

• Monitor the ICS threat landscape and convert it into actionable customer recommendations.

• Assist with customer audits, assessments, and security questionnaires.

• Convey customer requirements to Product and Engineering through prioritized field insights and needs.

• Collaborate with Sales and Account Management on renewals, expansions, and intricate upsells.

• Create reference architectures, deployment playbooks, runbooks, and best-practice manuals.

• Mentor and coach TAMs and customer-facing engineers.

• Operate independently, lead complex deployments and escalations, establish technical standards, and enhance the TAM function.

⛳️ Requirements

• Over 7 years in technical customer-facing or hands-on engineering roles, with a significant portion dedicated to OT/ICS.

• Practitioner-level, hands-on experience in industrial settings configuring, supporting, or securing PLCs, HMIs, SCADA/DCS systems, historians, and engineering workstations in live production environments.

• Extensive hands-on experience with deploying and managing 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.

• Familiarity with 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 such as Modbus, DNP3, EtherNet/IP, PROFINET, OPC UA, and similar protocols.

• Proven experience as a lead technical owner for large enterprise or critical infrastructure accounts in regulated, mission-critical environments.

• Executive presence and exceptional communication skills; capable of articulating complex technical risks to controls engineers, security teams, and executives.

• Ability to function with minimal guidance, prioritize within a demanding portfolio, and demonstrate sound judgment on escalation.

• Preferred: experience at an OT/ICS cybersecurity organization.

• 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: knowledge of SAML/OIDC, Active Directory/Entra ID, MFA, VMware, Azure, and AWS.

• Preferred: experience in a SaaS or high-growth startup setting.

• Preferred: eligibility for or experience working in environments necessitating U.S. security clearance or background screening.

🏝️ Benefits

• 401(k) with company match.

• Generous paid time off and holidays.

• Performance bonus and eligibility for equity.

• Remote work flexibility.

• Medical, vision, and dental insurance.

• Performance-based rewards and recognition.

• Opportunities for role development and advancement into other positions.