Senior IT & OT Infrastructure Specialist

SEATRIUM DIGITAL PTE. LTD.; Singapore; On-site; SGD 80,000 - 100,000; Full time

Job summary

A leading company in Singapore is seeking a Senior IT & OT Infrastructure Specialist to design and manage OT security solutions, provide infrastructure support, and engage with clients on security best practices. The ideal candidate will have a Bachelor's degree in Cybersecurity or IT, relevant certifications, and at least 3 years of experience in OT security or network security. This role involves collaboration with various teams and requires strong knowledge of security protocols and technologies.

Qualifications

• Minimum 3 years' experience in OT security or network security.
• In-depth knowledge of NIST, IEC 62443, and IACS UR 26/27 guidelines.

Responsibilities

• Designs and manages OT security solutions in compliance with guidelines.
• Provides support for Windows servers and workstations.
• Monitors and troubleshoots IT/OT network infrastructure.

Skills

Cybersecurity

Network Security

OT Security

Risk Management

Compliance

Education

Bachelor's degree in Cybersecurity

Bachelor's degree in Information Technology

Tools

VMware

Hyper-V

Firewall Technologies

IDS/IPS

Vulnerability Scanning Tools

Job description

Senior IT & OT Infrastructure Specialist page is loaded

Senior IT & OT Infrastructure Specialist

Apply locations Seatrium (SG) Pte. Ltd. time type Full time posted on Posted Today time left to apply End Date: June 8, 2025 (27 days left to apply) job requisition id 10015971

JOB DESCRIPTION

OT Security Management

• Designs, implements and manages OT security solutions in compliance with NIST, IEC 62443, and IACS UR 26/27 guidelines

• Conducts security assessments and audits of OT environments to identify vulnerabilities and recommend remediation strategies

• Develops and sets up OT security as a service offering, including defining service packages, pricing, and delivery models

• Customer engagement and provide expert technical consultation to clients on OT security best practices and strategies to enhance their security posture.

• Collaborates with other teams to provide technical expertise during pre-sales activities including presentations, demonstrations, and proposal development

• Creates and maintains comprehensive documentation of security policies, procedures, and configurations.

Infrastructure Support

• Provides support for Windows servers and workstations, including installation, configuration, and maintenance

• Deploys, manages, and troubleshoots virtual machines in environments such as VMware or Hyper-V

• Monitors, maintains, and troubleshoots IT/OT network infrastructure, including switches, routers, and wireless access points

• Configures, manages, and monitors firewalls to ensure network security and compliance with company policies

• Responds to and resolve infrastructure-related incidents and service requests in a timely manner.

• Maintains accurate and up-to-date documentation of network configurations, system settings, and procedures.

• Works closely with other IT team members and departments to support ongoing projects and initiatives.

JOB REQUIREMENTS

• Bachelor's degree in Cybersecurity, Information Technology, or a related field.

• Relevant certifications such as CISSP, GICSP, or IEC 62443 certification are a plus

• Minimum 3 years' experience working in OT security or network security, preferably in industries such as manufacturing, energy, or utilities

• In-depth knowledge of NIST, IEC 62443, and IACS UR 26/27 guidelines

• Experience with OT security technologies and solutions with hands-on experience managing OT security solutions (firewalls, IDS/IPS, vulnerability scanning tools) in industrial environments

• Knowledge of risk management and compliance in OT environments

• Strong understanding of industrial control systems (ICS) and supervisory control and data acquisition (SCADA) systems

• Strong understanding of OT security risks, vulnerabilities, and mitigation strategies and strong knowledge of firewall technologies and best practices

• Proficiency in network protocols (TCP/IP, DNS, DHCP, etc.) and with Windows Server and Windows operating systems

• Hands-on experience with virtual machine environments (VMware, Hyper-V)

Our Address And Working Hours:
Seatrium Pioneer Yard
50 Gul Road
Singapore 629351
(Island wide transport provided)

Mon - Thu: 8am - 5:15pm, Fri: 8am to 4:30pm

Interested candidates are invited to send us an updated resume with your current and expected salary and earliest availability.

We regret that only shortlisted candidates will be notified.

Please note that your personal data disclosed to Seatrium Limited and our group of companies, shall be used for the purposes of evaluation, and processing in accordance with our recruitment processes and policies. By providing your personal data, you have consented to the aforesaid purpose under the provisions of the Personal Data Protection Act 2012.

BUSINESS UNIT

Seatrium Limited