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Cybersecurity | 18-5-2026

Senior OT Security Engineer

  • | Lemington Spa
  • £80,000 - £90,000 per annum

We are seeking an experienced Senior OT Security Engineer L3, with strong expertise in ICS/OT security and hands-on experience with the Armis Centrix platform. This role supports large-scale manufacturing environments and plays a key part in strengthening OT security across complex industrial operations.

You will work closely with plant teams, vendors, and cross-functional stakeholders to improve asset visibility, enhance threat and vulnerability management, and ensure robust OT security controls are in place.

Key Responsibilities

  • Manage and optimise the Armis Centrix platform across plant environments.
  • Improve deployment architecture of Armis Collectors to reduce complexity and improve coverage.
  • Standardise configurations and reduce false positives through alert tuning.
  • Improve asset inventory accuracy, vulnerability data, and reporting quality.
  • Design and implement new OT threat detection use cases.
  • Produce reporting for technical teams and senior stakeholders.
  • Work with plant operations and vendors to align OT security with business needs.

Essential Skills & Experience

  • Strong experience in OT / ICS Security environments.
  • Hands-on experience with Armis Centrix.
  • Knowledge of PLC, DCS, MES, SCADA systems.
  • Strong understanding of OT networks and architecture.
  • Experience in vulnerability, asset, and incident management in OT.
  • Knowledge of IAM, firewalls, endpoint security, PKI, DLP, EDR.
  • Experience with SIEM tools (e.g. Splunk ES, QRadar, Google Chronicle).
  • SOC experience, including log integration and correlation rules.
  • Strong stakeholder communication and reporting skills.

Please share your profile for immediate consideration

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