OT / ICS Cybersecurity Specialist / Manager

Job Responsibilities:

• Lead OT/ICS cybersecurity engineering and assurance for airport operational systems, including SCADA, BMS, EPMS, HVAC, airfield, security and other network-connected infrastructure.
• Review and validate OT cybersecurity architectures, network segmentation, secure communications and system interfaces in line with defence-in-depth principles.
• Evaluate vendor designs, technical submissions and system configurations for compliance with project requirements, cybersecurity standards and regulatory obligations.
• Apply IEC 62443 principles to cybersecurity risk assessments, system hardening, access control, asset management, remote access and lifecycle security.
• Develop and maintain OT cybersecurity documentation, including risk registers, asset inventories, compliance checklists, firewall requirements and gap assessments.
• Assess cybersecurity risks across OT infrastructure, including PLCs, RTUs, IEDs, HMIs, SCADA systems, servers, network devices and virtualization platforms.
• Define and review secure configuration, vulnerability management, patching, monitoring, logging, backup and disaster recovery requirements for OT environments.
• Support secure third-party remote access, cybersecurity incident response, resilience planning and recovery activities.
• Lead cybersecurity design reviews, technical workshops, testing, commissioning and remediation activities with consultants, contractors, OEMs and system integrators.
• Provide cybersecurity expertise throughout the project lifecycle, from design and procurement to handover and operations, and prepare technical reports on risk, compliance and project readiness.

Job Requirements:

• Degree/Diploma in Cybersecurity, Information Technology, Engineering or a related field.
• Minimum 5 years of relevant experience, including OT/ICS, SCADA or industrial cybersecurity environments.
• Strong knowledge of OT cybersecurity principles, IEC 62443, network security and risk management.
• Familiarity with industrial control systems, SCADA, BMS, EPMS, HVAC and related operational technologies.
• Experience in cybersecurity design reviews, vulnerability management, compliance assessments, testing and commissioning.
• Strong analytical, problem-solving and stakeholder management skills.
• Experience in airports, critical infrastructure or industrial environments is an advantage.
• Relevant certifications (e.g. CISSP, CISM, GICSP, ISA/IEC 62443) are preferred.
• Knowledge of Singapore cybersecurity regulations and security requirements is advantageous.
• Able to work in live operational environments and obtain required airport security clearances.