Director, Operational Technology (OT) Engineering

NorthMark Compute & Cloud; Spartanburg (SC); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Lunch stipend

Company‑paid benefits

401(k) match

Optional benefits

Paid time off

Job summary

NorthMark Compute & Cloud seeks a Director of OT Engineering in Spartanburg County, SC to lead the full OT infrastructure stack. You will own Active Directory, IAM, and security appliances while guiding virtualization, storage, and OT networking in a regulated environment.

You will manage a team of OT engineers, collaborate with cybersecurity leadership, and drive multi‑year roadmaps, vendor management, and policy adherence to IEC 62443 and NIST standards.

Qualifications

• 15+ years infrastructure engineering in senior/leadership roles.
• Expert‑level AD design, administration, governance in OT environments.
• Hybrid identity: Azure AD/Entra ID, CA, Privileged Identity Mgmt.
• Experience designing OT security appliances: NGFWs, NAC, IPS.
• VMware vSphere/ESXi and Proxmox VE clustering and tuning.
• Enterprise storage: SAN, NAS, Ceph, backup/replication.

Responsibilities

• Define and execute OT engineering strategy and multi‑year roadmap.
• Provide senior technical leadership to OT infrastructure teams.
• Own AD/Entra ID architecture for OT environments and PAM.
• Lead IAM, RBAC, MFA, service accounts governance.
• Oversee security appliances within OT infrastructure and networks.
• Direct OT virtualization platforms: VMware, Proxmox, Kubernetes.
• Own OT storage strategy: SAN/NAS/Ceph and backups.
• Ensure compliance with IEC 62443, NIST SP 800‑82, CIS Benchmarks.
• Lead disaster recovery planning and continuity exercises.
• Collaborate with OT Cybersecurity to integrate infrastructure security.
• Manage vendor relations, licensing, procurement, change control.
• Develop team capabilities through training and certifications.
• Produce executive reporting on health, capacity, risk and status.
• Lead cross‑functional OT projects across network, cybersecurity, and ops.

Skills

Active Directory

IAM

Security appliances

VMware vSphere/ESXi

Proxmox VE

Kubernetes

OT/ICS networks

Budget ownership

Education

Bachelor's degree in CS/IT/EE

Tools

VMware vSphere/ESXi

Proxmox VE

Kubernetes

Job description

The Company

NorthMark Compute & Cloud (NMC²) is backed by dedicated leadership and investment, with a clear mission as it operates at the bleeding edge of technology. Its goal is to scale and enhance the high-performance computing (HPC) and cloud infrastructure that supports its clients' research, production, and delivery, enabling breakthroughs that shape the industries of tomorrow. Its engineers build critical infrastructure to eliminate friction in scientific research, simulations, analysis, and decision‑making, accelerating discovery and driving faster innovation.

The Position

We are seeking a Director of OT Engineering in Spartanburg County, SC to provide strategic and hands‑on technical leadership across the full OT infrastructure stack. This is a critical leadership role for a versatile senior engineer with deep cross‑domain expertise spanning Windows Active Directory, identity and access management, security appliances, virtualisation platforms, and enterprise storage, all within the unique constraints of OT/ICS environments. You will lead the engineering team responsible for the platforms, systems, and services underpinning OT operations, working in close partnership with the Director of OT Cybersecurity.

Responsibilities

• Define and execute the OT engineering strategy and multi-year infrastructure roadmap, aligning technology investments with operational and security objectives.
• Provide senior technical leadership and people management to a team of OT infrastructure, endpoint, and systems engineers.
• Own the enterprise Active Directory and hybrid Azure AD / Entra ID architecture for OT environments, governing identity lifecycle, Group Policy, privileged access, and directory services integration.
• Lead IAM strategy for OT environments including RBAC, MFA, PAM, and service account governance.
• Oversee design, deployment, and management of security appliances within OT infrastructure: NGFWs, NAC, IPS, and web application firewalls.
• Direct the organisation's OT virtualisation platforms including VMware vSphere/ESXi, Proxmox VE, and Kubernetes.
• Own the enterprise storage strategy for OT environments: SAN, NAS, object storage, and backup architectures.
• Ensure all engineering platforms comply with IEC 62443, NIST SP 800-82, CIS Benchmarks, and organisational security policies.
• Lead infrastructure disaster recovery and business continuity planning, testing, and execution for OT systems.
• Collaborate with the Director of OT Cybersecurity to integrate engineering infrastructure into the broader OT security architecture.
• Manage vendor relationships, licensing, support contracts, and procurement.
• Establish and enforce change management, configuration management, and documentation standards.
• Drive team capability development through structured training, mentoring, and certification programmes.
• Produce executive‑level reporting on infrastructure health, capacity, risk, and programme status.
• Lead cross‑functional engineering projects involving OT network, cybersecurity, endpoint, and operational teams.

Requirements

• 15+ years infrastructure engineering; 8+ years in OT, ICs, or critical infrastructure in a senior or leadership capacity.
• Expert‑level Active Directory design, administration, and governance in OT environments.
• Deep experience with hybrid identity architectures: Azure AD / Entra ID, Conditional Access, Entra Connect, Privileged Identity Management.
• Demonstrated expertise designing security appliances in OT: NGFWs (FortiGate, Palo Alto), NAC, IPS.
• Expert‑level VMware vSphere/ESXi and/or Proxmox VE including clustering, HA, and performance tuning.
• Strong knowledge of enterprise storage: SAN, NAS, Ceph, and backup/replication solutions.
• Experience managing Kubernetes in production OT or enterprise contexts.
• Understanding of OT/ICS network architecture, industrial protocols, and engineering constraints.
• Proven ability to lead, develop, and retain high‑performing engineering teams.
• Familiarity with IEC 62443, NIST SP 800-82, and CIS Benchmarks.
• Certifications preferred: MCSE/modern Microsoft, VCP, CKA, CISSP, or equivalent.
• Bachelor's degree in Computer Science, IT, Electrical Engineering, or related field.
• Experience with PAM platforms such as CyberArk, BeyondTrust, or FortiPAM in OT environments (preferred)
• Familiarity with OpenStack or other private cloud platforms in OT contexts (preferred)
• Hands‑on experience with observability stacks (Prometheus, Grafana, Elastic) (preferred)
• Director‑level budget ownership and vendor negotiation experience (preferred)
• Experience within NERC CIP or IEC 62443 regulated environments (preferred)

It is impossible to list every requirement for, or responsibility of, any position. Similarly, we cannot identify all the skills a position may require since job responsibilities and the Company’s needs may change over time. Therefore, the above job description is not comprehensive or exhaustive. The Company reserves the right to adjust, add to or eliminate any aspect of the above description. The Company also retains the right to require all employees to undertake additional or different job responsibilities when necessary to meet business needs.

Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.

Benefits & Perks

• Company-Paid Lunch Stipend: Lunch is provided via GrubHub
• Company-Paid Benefits: 100% Employer-Paid Medical in our High Deductible Health Plan, Dental and Vision benefits for employees and their families, 16 weeks of Paid Parental Leave, Employee Assistance Program, Life insurance, Short-Term Disability and Long-Term Disability
• 401(k): Company will match 100% of your contributions up to 6%
• Optional Employee-Paid Benefits: Medical insurance in our PPO plan and a variety of other benefits such as Health Savings Accounts (with Company Contribution!), Flexible Spending Accounts, Supplemental Life Insurance, Wellhub and more.
• Time Off: 25 days of Paid Time Off plus 12 company holidays

EQUAL OPPORTUNITY EMPLOYER

NORTHMARK STRATEGIES LLC IS AN EQUAL EMPLOYMENT OPPORTUNITY EMPLOYER. THE COMPANY'S POLICY IS NOT TO DISCRIMINATE AGAINST ANY APPLICANT OR EMPLOYEE BASED ON RACE, COLOR, RELIGION, NATIONAL ORIGIN, GENDER, AGE, SEXUAL ORIENTATION, GENDER IDENTITY OR EXPRESSION, MARITAL STATUS, MENTAL OR PHYSICAL DISABILITY, AND GENETIC INFORMATION, OR ANY OTHER BASIS PROTECTED BY APPLICABLE LAW. THE FIRM ALSO PROHIBITS HARASSMENT OF APPLICANTS OR EMPLOYEES BASED ON ANY OF THESE PROTECTED CATEGORIES.