ITインフラセキュリティエンジニア/ IT Infra Security Engineer

An international energy company is looking for an IT/OT Infrastructure & Cybersecurity Engineer. The selected candidate will support OT and Plant Control Network infrastructure, cybersecurity, lifecycle management, technical troubleshooting, compliance, and regional and global IT/OT initiatives.

Responsibilities:

• Support lifecycle management of OT and Plant Control Network infrastructure, including servers, workstations, virtualisation platforms, storage, network components, and related assets
• Provide technical troubleshooting, incident analysis, root cause analysis, and corrective actions for OT systems and industrial network environments
• Support system builds, patching, antivirus management, backup and recovery, monitoring, and infrastructure inventory management
• Work with site teams and vendors on changes, deployments, and support activities across PCN, OT, and SCADA environments
• Support Windows Server environments and enterprise infrastructure platforms
• Support VMware and related server, storage, and hyperconverged infrastructure environments
• Support Active Directory, DNS, DHCP, Group Policy, authentication services, and directory services
• Apply knowledge of TCP/IP, routing, switching, and network troubleshooting to resolve infrastructure issues
• Support OT and PCN cybersecurity, governance, and compliance with company and industry standards
• Participate in OT modernisation, industrial digitalisation, and lab network expansion activities
• Support roadmap initiatives including OT ACE, DCS Connectivity to the Business Network, CI Server implementation, and Lab Network expansion and support

Requirements:

• Bachelor’s degree or equivalent in computer science, information technology, engineering, or a related technical discipline
• More than 3 years of experience in IT infrastructure, OT infrastructure, industrial systems, networking, systems engineering, or a related field
• Experience with Windows Server environments and enterprise infrastructure platforms
• Foundational knowledge of TCP/IP, DNS, DHCP, routing, switching, and network troubleshooting
• Willingness to learn new technologies and business processes in a changing environment
• Commitment to Health, Environment and Safety
• Ability and willingness to work on-site in Omaezaki, Shizuoka
• Ability and willingness to work outside standard hours when required
• Professional level Japanese and English

Preferred requirements:

• Experience with Operational Technology, Industrial Control Systems, SCADA, DCS, or Plant Control Networks
• Knowledge or practical experience in industrial cybersecurity, OT security, or network security
• Experience with VMware, Active Directory, Windows Server, backup and recovery, or monitoring tools
• IT/OT support experience in manufacturing, energy, chemicals, oil and gas, process industries, or laboratory environments
• Experience in project management, technical project coordination, vendor management, or managed service provider coordination
• Possess valid certifications such as CCNA, CCNP, Microsoft certifications, VMware certifications, Security+, CISSP, GICSP, or ITIL Foundation

About the Company:

A global energy company involved in oil, natural gas, liquefied natural gas and energy-related technologies. Its Japan operations support the country’s energy supply through LNG activities and provide advanced fuel and lubricant additive solutions for automotive, marine and industrial applications, while also exploring lower-carbon energy technologies.

Keywords:

OTインフラ, オペレーショナルテクノロジー, 産業サイバーセキュリティ, プラント制御ネットワーク, 求人, 外資系

Job Ref: ZMQUTO