Operational Technology (OT) Security Engineer

mnosys sdn bhd; Batu Kawan; On-site; MYR 96,000 - 144,000; Full time

Job summary

mnosys sdn bhd in Penang is seeking an Operational Technology (OT) Security Engineer to monitor OT security alerts from Nozomi and other platforms, investigate OT cybersecurity events, and coordinate incident response across manufacturing systems and OT assets. The role covers OT platform administration, SIEM visibility, OT network security, risk and vulnerability management, and governance.

You'll work with Manufacturing, Facilities, and IT teams to enforce controls, track findings, and report

Responsibilities

• Monitor OT security alerts generated by Nozomi and other security monitoring platforms.
• Investigate OT-related cybersecurity events and anomalies.
• Coordinate incident response activities involving manufacturing systems and OT assets.
• Escalate significant incidents to Global Information Security teams.
• Support threat detection activities affecting plant operations.
• OT Platform Administration: Nozomi OT Security Monitoring; SIEM security visibility and investigations; OT related detection, correlation and alert setup.
• OT Network Security: Maintain OT asset visibility and inventory.
• OT Risk & Vulnerability Management: Assess cybersecurity risks associated with OT systems and vulnerability management.
• Compliance & Security Governance: Ensure adherence to Dexcom OT security policies and standards.
• Maintain OT cybersecurity documentation and standards.
• Work with Manufacturing, Facilities, and IT teams to enforce security controls.
• Track security findings and remediation progress.
• Participate in cybersecurity awareness activities related to manufacturing operations.
• Develop site-level security metrics and KPI reporting.

Job description

Operational Technology (OT) Security Engineer

Monitor OT security alerts generated by Nozomi and other security monitoring platforms.

Investigate OT-related cybersecurity events and anomalies.

Coordinate incident response activities involving manufacturing systems and OT assets.

Escalate significant incidents to Global Information Security teams.

Support threat detection activities affecting plant operations.

OT Security Platform Administration

Responsible for day-to-day administration and support of:

Nozomi OT Security Monitoring

SIEM security visibility and investigations

OT related detection, correlation and alert setup

OT Network Security

Maintain OT asset visibility and inventory.

OT Risk & Vulnerability Management

Assess cybersecurity risks associated with OT systems and vulnerability management.

Compliance & Security Governance

Ensure adherence to Dexcom OT security policies and standards.

Maintain OT cybersecurity documentation and standards.

Work with Manufacturing, Facilities, and IT teams to enforce security controls.

Track security findings and remediation progress.

Participate in cybersecurity awareness activities related to manufacturing operations.

Develop site-level security metrics and KPI reporting.