Key Responsibilities ? OT Security Design & Implementation Develop and implement cybersecurity measures across operational technology environments within power generation and water treatment facilities. Design and maintain OT network architecture, ensuring proper segmentation between IT and OT environments (including Purdue Model Levels 03.5). Harden ICS assets such as HMIs, PLCs, RTUs, DCS, SCADA systems, and engineering workstations. Ensure secure IT/OT integration and apply regular patching or compensating controls to OT assets. ? Risk Assessment & Compliance Conduct risk assessments and ensure compliance with NIST CSF, ISO 27001:2022, and Singapore's CII regulations (CCoP by CSA, WSCP by PUB). Support alignment with Company's Group Cybersecurity Framework (based on NIST CSF) Ensure compliance with IEC 62443 / ISA 99 standards for industrial automation and control system security. [ Support audits and regulatory reviews (including CSA and PUB assessments) to maintain a robus...