OT Security Architect

Role: OT Security Architect

Location: Coventry

Duration: 6 Months

The OT Security Architect will lead the design and implementation of security strategies and solutions tailored to the Operational Technology (OT) environment. This role ensures that the organization's critical OT infrastructure is protected against evolving cyber threats while enabling seamless integration with IT security operations. The OT Security Architect will play a pivotal role in aligning security measures with business objectives, regulatory requirements, guidance for ensuring NISR compliance and industry best practices for the "Detect and Respond" initiative.

Develop OT-specific monitoring and alerting systems.

Ensure compliance with OT security standards (e.g., ISA/IEC 62443, NIST 800-82).

• Define segmentation strategies between IT and OT.


• Lead the integration of OT log sources into SIEM platforms.


• Provide guidance for securing SCADA, PLC, and DCS systems.


• Provide guidance for ensuring NISR compliance


• Design OT-specific use cases and detection capabilities for SIEM.

Skills Required:

• Deep understanding of OT systems such as SCADA, PLCs, DCS, and ICS.


• OT Security Tools: Claroty


• SIEM Platforms: Microsoft Sentinel


• Threat Intelligence: MITRE ATT&CK, open-source threat intelligence feeds


• NIST Cybersecurity Framework Certification


• Ability to onboard, normalize, and analyze OT logs from legacy and modern systems.


• Knowledge of KQL (Kusto Query Language) for data querying in Microsoft Sentinel.


• Strong knowledge of OT security standards, including: ISA/IEC 62443, NIST 800-82, NIS-R compliance