IT Security Officer (Operational Technology)

Aryan-Solutions-Pte.-Ltd.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Aryan-Solutions-Pte.-Ltd. is seeking a cybersecurity professional to lead OT security initiatives in critical infrastructure contexts in Singapore. The role focuses on discovery, architecture mapping, and proactive monitoring across IT/OT environments.

You will manage risk, ensure compliance with industry standards, and drive vulnerability management in a 24/7 operational setting, collaborating with cross-functional teams to safeguard essential systems.

Qualifications

• Minimum 5 years of experience in IT/OT security roles, preferably in critical infrastructure, government, or scientific environments.
• Demonstrated familiarity with meteorological systems, remote sensing, or environmental monitoring infrastructure.
• Demonstrated experience securing SCADA, IC, or OT systems.
• Strong working knowledge of NIST, FISMA, and IEC 62443 frameworks.
• Experience in a 24/7 mission-critical operational environment.
• Knowledge of WMO data standards and international weather data sharing protocols.

Responsibilities

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

Skills

SIEM platforms

IDS/IPS

Endpoint detection tools

Cloud security

NIST/FISMA/IEC 62443

SCADA/OT security

24/7 operational environments

WMO data standards

Certifications: CISSP/CISM/CEH/GICSP

Education

Bachelor’s degree in Cybersecurity, IT, CS or related field

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, IC, 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:

• CISSP (Certified Information Systems Security Professional)
• CISM (Certified Information Security Manager)
• CEH (Certified Ethical Hacker)