OT Security Architect & Infrastructure Lead

SEATRIUM (SG) PTE. LTD.; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

SEATRIUM (SG) PTE. LTD. is seeking an OT security professional to design, implement, and manage security solutions across OT environments in compliance with NIST, IEC 62443, and IACS UR 26/27.

You will perform security assessments, develop OT Security as a Service offerings, and provide expert pre-sales technical consultation to customers. The role involves managing Windows servers, virtualization platforms, and hybrid cloud deployments.

Qualifications

• Bachelor’s degree in Cybersecurity, Information Technology, or related field.
• Certifications such as CISSP, GICSP, or IEC 62443 are an added advantage.
• Minimum 3 years in OT security or network security, preferably in manufacturing, energy, or utilities.
• Strong understanding of NIST, IEC 62443, and IACS UR 26/27 standards.
• Knowledge of ICS/SCADA and OT security risk mitigation.

Responsibilities

• Designs, implements, and manages OT security solutions in compliance with NIST, IEC 62443, and IACS UR 26/27 standards.
• Conducts security assessments and audits of OT environments; identifies vulnerabilities and remediation strategies.
• Develops OT Security as a Service offerings including service packages and delivery models.
• Engages customers with expert technical consultation on OT security best practices.
• Supports pre-sales with presentations, demonstrations, and proposal development.
• Maintains security documentation: policies, procedures, configurations.
• Manages Windows servers, virtualization platforms (VMware/Hyper-V), and endpoint systems.
• Admins network infrastructure: switches, routers, firewalls, segmentation.
• Supports hybrid cloud environments (AWS, Azure) across on-prem, cloud, edge.
• Monitors systems, troubleshoots issues, ensures high availability and reliability.
• Handles incident management, root-cause analysis, SLA-based resolution.
• Updates architecture diagrams, configurations, and SOPs; collaborates cross-functionally.

Skills

OT security

NIST standards

IEC 62443

SCADA systems

ICS security

Vulnerability scanning

Windows Server

VMware

Hyper-V

Cloud platforms

Education

Bachelor’s degree in Cybersecurity

Tools

VMware

Hyper-V

Windows Server

AWS

Azure

Job description

SEATRIUM (SG) PTE. LTD. is seeking an OT security professional to design, implement, and manage security solutions across OT environments in compliance with NIST, IEC 62443, and IACS UR 26/27.

You will perform security assessments, develop OT Security as a Service offerings, and provide expert pre-sales technical consultation to customers. The role involves managing Windows servers, virtualization platforms, and hybrid cloud deployments.