IT Infrastructue

12 hours ago

Pasir Gudang, Johor, Malaysia EcoCeres Full time

Position Overview

The Infrastructure & Network Engineer is responsible for designing, implementing, and maintaining secure, resilient IT, OT, and ELV (Extra Low Voltage) systems within the plant. This includes managing Layer 2/3 network operations, firewall administration, system monitoring, and ensuring reliable connectivity across IT/OT environments. The role also oversees ELV systems such as CCTV, access control, and structured cabling to ensure compliance and operational integrity.

Key Responsibilities

  1. Network Infrastructure

  2. Configure, deploy, and troubleshoot Layer 2/3 switches.

  3. Administer firewalls, including security policies, NAT, VPN, and traffic inspection.
  4. Design and manage network segmentation (VLANs, ACLs, routing, isolation).
  5. Ensure network resilience through redundancy and failover strategies.
  6. Optimize network performance and plan for capacity.

  7. Support wired and wireless infrastructure, including enterprise Wi-Fi and authentication.

  8. OT Network

  9. Maintain secure connectivity for PLCs, SCADA, historians, and production servers.

  10. Collaborate with OT teams and vendors to secure IT/OT data flows.
  11. Monitor OT network performance and support incident response.

  12. Implement secure remote access for contractors and vendors.

  13. ELV Systems

  14. Manage ELV systems (CCTV, access control, PA/intercom) and ensure IP integration.

  15. Apply cybersecurity controls and coordinate with vendors for compliance.

  16. Oversee maintenance, upgrades, and documentation of ELV systems.

  17. Monitoring & Visibility

  18. Administer monitoring tools (e.g., SolarWinds) for performance and alerts.

  19. Develop dashboards and thresholds for early issue detection.

  20. Conduct root-cause analysis for outages and connectivity issues.

  21. Identity & Access Management

  22. Manage Microsoft Entra ID for identity lifecycle, conditional access, and governance.

  23. Enforce RBAC, MFA, and secure access policies.

  24. Server & Virtualization

  25. Administer virtualization platforms (VMware/Hyper-V), including provisioning, patching, and backups.

  26. Coordinate with vendors for hardware and storage health.

  27. Cloud Security

  28. Enforce cloud security policies and troubleshoot hybrid connectivity issues.

  29. Documentation & Compliance

  30. Maintain accurate network and system documentation.

  31. Ensure compliance with HSSE, ISO standards, and cybersecurity frameworks.
  32. Support audits and assessments.
Job Requirements
  • Expertise in network design, deployment, and troubleshooting.
  • Hands-on experience with switches, firewalls, and ELV systems.
  • Knowledge of IT/OT architecture, industrial protocols, and security principles.
  • Familiarity with monitoring tools, Microsoft Entra ID, and virtualization platforms.
  • Understanding of VLANs, STP, OSPF, DHCP, DNS, and QoS.
  • Degree in IT, Networking, or Computer Engineering.
  • Minimum 5 years of experience in IT infrastructure/networking (industrial environment preferred).
  • Exposure to ELV projects; certifications (e.g., CCNP) are an advantage.
  • Strong analytical and troubleshooting ability.
  • Effective communication and coordination with cross-functional teams.
  • High responsibility and safety awareness in operational environments.