Assistant Manager Digital Infrastructure (Rayong Based) – NPI, Chemicals Business

Key Role and Responsibilities

1. IT Infrastructure

• Manage and improve IT infrastructure including networks, servers, virtualization, storage, databases, backup, and monitoring systems.
• Manage LAN/WAN, VLAN, Wi-Fi, firewall, Windows/Linux Server, VMware, SQL Server, and related services.
• Design and maintain on-premise infrastructure for Smart Factory, analytics, and local AI, including servers, GPU resources, containers, and data services.
• Ensure infrastructure availability, performance, security, scalability, and disaster recovery.

2. OT Infrastructure

• Manage and improve OT networks and connectivity for PLCs, HMIs, SCADA.
• Design reliable machine connectivity and data acquisition using OPC UA/DA, Modbus, Profinet, TCP/IP, and Industrial Ethernet.
• Enable manufacturing data for real-time monitoring, traceability, analytics, predictive maintenance, and process optimization.
• Support edge computing and local AI deployment such as machine vision, anomaly detection, and intelligent monitoring.

3. Cybersecurity & Governance

• Ensure secure and reliable integration between IT and OT environments.
• Implement cybersecurity controls including network segmentation, firewall, access control, patching, vulnerability management, and backup/recovery.
• Support cybersecurity risk assessment, incident response, root cause analysis, and remediation.
• Maintain IT/OT standards, asset inventory, architecture, configurations, and lifecycle documentation across manufacturing sites.

4. Solution Design & Development

• Work closely with shopfloor, engineering, and production teams to identify pain points, risks, and improvement opportunities.
• Develop practical IT/OT, automation, data, and AI-enabled solutions that improve productivity, quality, cost, reliability, or safety.
• Conduct solution design, feasibility study, PoC, and technology evaluation for new technologies and improvement initiatives.
• Drive end-to-end solution delivery from technical specification and vendor evaluation through implementation, commissioning, handover, and standardization.

Qualifications

• Bachelor's degree in Computer Engineering, Information Technology, Computer Science, Electrical Engineering, or related fields.
• Minimum GPA of 2.70 for undergraduate and 3.30 for postgraduate studies
• Good command of English (TOEIC score of 550 or higher)
• 2–5 years of experience in IT/OT infrastructure, networking, systems administration, or cybersecurity.
• Good knowledge of enterprise/industrial networking, including switching, routing, VLAN, firewall, Wi-Fi, VPN, NAT, and network troubleshooting.
• Experience with Windows/Linux Server, VMware, backup systems, and infrastructure monitoring tools.
• Experience in manufacturing environments with basic knowledge of PLC, SCADA, Modbus, OPC UA, and industrial networks is preferred.
• Hands-on experience with Cisco, Aruba, Ruijie, MikroTik, or equivalent network platforms is preferred.
• Basic knowledge of IT/OT cybersecurity, including access control, patching, vulnerability management, and network segmentation.
• Familiarity with edge computing, on-premises infrastructure, or local AI environments is an advantage.
• Able to travel to other sites as required for project implementation and technical support.
• Must be able to work in Rayong.