Industrial OT Security Engineer - ICS/SCADA Defense

Flintex Consulting Pte Ltd; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Flintex Consulting Pte Ltd is seeking an OT cybersecurity specialist to join our team in Singapore. The role focuses on supporting implementation of OT cybersecurity across critical infrastructure environments and non-CII sectors, with emphasis on DCS/SCADA/HMI/PLC/RTU hardening and secure remote access.

You will conduct risk assessments, review security by design, and participate in vendor security assessments, while coordinating with plant operations, IT, and OT vendors.

Qualifications

• 4–6 years of relevant OT/ICS experience
• Exposure to OT/ICS in energy, gas, or water sectors
• OT/IT cybersecurity experience
• Knowledge of critical infrastructure / CII regulations
• Experience with cybersecurity risk assessments and audits
• Experience planning or supporting tabletop exercises

Responsibilities

• Support implementation of OT cybersecurity initiatives across CII and non-CII environments.
• Perform security reviews and hardening of DCS, SCADA, HMI, PLC, RTU and engineering workstations.
• Support OT network security including segmentation, firewalls, secure remote access and Purdue Model architecture.
• Conduct/support Threat Risk Assessments, Security by Design reviews and vendor security assessments.
• Monitor and investigate OT cybersecurity alerts using SIEM and OT security monitoring tools.
• Support vulnerability management, incident response and cybersecurity tabletop exercises.
• Work closely with plant O&M, engineering, IT, cybersecurity teams and OT vendors.

Skills

OT/ICS architecture

OT systems experience

Industrial protocols

OT security tools

SIEM platforms

Tools

Claroty

Nozomi

Dragos

Splunk

Google SecOps

Job description

Flintex Consulting Pte Ltd is seeking an OT cybersecurity specialist to join our team in Singapore. The role focuses on supporting implementation of OT cybersecurity across critical infrastructure environments and non-CII sectors, with emphasis on DCS/SCADA/HMI/PLC/RTU hardening and secure remote access.

You will conduct risk assessments, review security by design, and participate in vendor security assessments, while coordinating with plant operations, IT, and OT vendors.