OT Cybersecurity Engineer

Flintex ConsultingSingaporemycareersfuturepublished 10/29/2026
Must-have:SecurityRemote

Your tasks

  • 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 (TRA), Security by Design (SBD) reviews and vendor security assessments.
  • Support compliance with IEC 62443, NIST CSF, ISO 27001, CSA CCoP and PUB WSCP requirements.
  • 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.

Requirements

Technical Requirements

  • Good understanding of OT/ICS architecture and industrial control systems.
  • Experience with one or more OT systems such as ABB 800xA, Siemens PCS 7, Honeywell PKS, GE Mark VIe or Schneider Electric.
  • Working knowledge of industrial protocols such as Modbus, OPC, IEC 61850, IEC-104 or DNP3.
  • Exposure to OT security tools such as Claroty, Nozomi or Dragos, and SIEM platforms such as Google SecOps or Splunk.
  • 4–6 years of relevant experience, preferably with exposure to:
  • OT/ICS environments, particularly energy, gas and/or water
  • OT/IT cybersecurity
  • Critical infrastructure / CII regulatory requirements
  • Cybersecurity risk assessments and audits
  • Planning or supporting cybersecurity tabletop exercises