Senior Information Security Engineer - OT​/IoT & Operational Technology; OT Security

It’s exhilarating to find yourself at a pivotal moment in history— and even more so to be leading the way. At QTS Data Centers, we are proud to stand at the forefront of today’s dynamic digital transformation. Our world‑class data centers empower our customers’ most strategic growth initiatives, positioning us as a global leader in digital infrastructure. As AI and cloud technologies fuel the demand for increased speed, capacity, and innovation, QTS has emerged as the global digital infrastructure leader.

We are committed to connecting the globe for good. Driven by purpose and a spirit of innovation, we design, build, and operate some of the most advanced data centers worldwide. In addition to our cutting‑edge technology, we are dedicated to sustainability, incorporating renewable energy solutions to minimize our environmental footprint and drive meaningful impact. As a proud portfolio company of Blackstone, QTS is uniquely positioned to achieve ambitious growth and innovation goals.

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The Senior Information Security Engineer – OT/IoT Security is responsible for leading the design, implementation, and ongoing management of cybersecurity controls across QTS operational technology (OT), industrial control systems (ICS), and IoT environments. This role focuses on protecting critical infrastructure systems supporting data center operations, including building management systems (BMS), electrical/mechanical control systems, environmental monitoring platforms, and connected operational devices. The engineer ensures that OT/IoT security solutions align with QTS architectural standards, compliance requirements, and evolving threat models targeting industrial and cyber‑physical systems.

As risks evolve, this role recommends enhancements that strengthen resilience across converged IT/OT environments. While not a people‑management role, this position serves as a technical leader and subject matter expert
, partnering closely with Security Architecture, Facility Operations, Engineering, and Technology teams to advance QTS’s security posture across operational environments.

• OT / IC Security Engineering
  • Lead the design, deployment, and lifecycle management of security controls for OT, ICS, and IoT environments.
  • Secure critical data center infrastructure systems, including BMS, EPMS, DCIM, PLCs, SCADA components, and industrial network segments.
  • Define and enforce network segmentation strategies between IT and OT environments (zones/conduits).
  • Implement and maintain secure remote access solutions for vendors and operational support teams.
• Monitoring & Threat Detection
  • Develop and maintain visibility across OT networks, including asset inventory, network flows, and anomalous behavior detection.
  • Integrate OT telemetry into enterprise monitoring platforms (e.g., SIEM, SOAR) where appropriate.
  • Partner with SOC teams to develop OT‑specific detection use cases and incident playbooks.
• Vulnerability & Risk Management
  • Establish and maintain OT vulnerability management practices, including asset profiling, passive scanning, and vendor coordination.
  • Assess exploitability and operational risk for OT assets (e.g., controllers, embedded devices, facility systems).
  • Define risk‑based remediation strategies considering uptime, safety, and operational constraints.
• Incident Response & Resilience
  • Support and lead OT‑related incident investigations, containment, and recovery efforts.
  • Develop OT‑specific response plans aligned with safety and operational continuity requirements.
  • Participate in tabletop and post‑incident exercises with cross‑functional teams.
• Architecture & Project Leadership
  • Lead OT/IoT security design reviews for new builds, retrofits, and expansion projects.
  • Collaborate with facility engineering, construction, and vendors to embed security in design (“secure by design”).
  • Drive…