IT Security Officer (Operational Technology)

ARYAN SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

ARYAN SOLUTIONS PTE. LTD. is seeking an experienced IT/OT security professional for critical infrastructure environments in Singapore. You will lead security operations, monitor incidents, and map OT assets to strengthen defensive posture.

Qualifications include a bachelor's degree in cybersecurity or related field, 5+ years in IT/OT security, experience with SIEM/IDS/IPS and endpoint protection; familiarity with NIST, IEC 62443, and OT networks is highly valued.

Qualifications

• Bachelor's degree in Cybersecurity, IT, CS or related field is required.

Responsibilities

• OT Asset Discovery & Architecture Mapping
• Security Operations & Monitoring
• Risk Management & Compliance
• Vulnerability Management

Skills

Bachelor's degree in related field

IT/OT security experience

SIEM proficiency

IDS/IPS proficiency

Endpoint detection tools

Education

Bachelor's degree in Cybersecurity/IT/CS

Tools

SIEM platforms

IDS/IPS

Endpoint detection tools

Job description

Required Qualifications

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related field.
• Minimum 5 years of experience in IT/OT security roles, preferably within critical infrastructure, government, or scientific/technical environments.
• Proficiency with SIEM platforms, intrusion detection/prevention systems (IDS/IPS), and endpoint detection tools.

Key Responsibilities

• OT Asset Discovery & Architecture Mapping
• Security Operations & Monitoring
• Risk Management & Compliance
• Vulnerability Management

Preferred Qualifications

• Familiarity with meteorological systems, remote sensing technologies, or environmental monitoring infrastructure.
• Demonstrated experience securing SCADA, I C S, or OT systems.
• Strong working knowledge of NIST, FISMA, and IEC 62443 frameworks.
• Experience working within a 24/7 mission-critical operational environment.
• Knowledge of WMO (World Meteorological Organization) data standards and international weather data sharing protocols.
• One or more active certifications: CISSP, CISM, CEH, GICSP, or equivalent.
• Experience with cloud security in hybrid environments (AWS, Azure Government).

Note

• o CISSP (Certified Information Systems Security Professional)
• o CISM (Certified Information Security Manager)
• o CEH (Certified Ethical Hacker)
• o GICSP (Global Industrial Cyber Security Professional) - highly valued for OT/radar network security.