Network Infra Supervisor

1. Scope of Work:
The Network Infra Supervisor oversees the design, deployment, administration, and continuous optimization of the enterprise network infrastructure and Data Center facilities. This role ensures high availability, scalability, robust performance, and multilayered security across all enterprise networks (LAN, WAN, SD-WAN, Wireless, and Data Center environments). The position directly supervises the network administration team, steers infrastructure projects, enforces ITIL-aligned service management standards (Incident, Problem, and Change Management), manages vendor SLAs, and collaborates closely with Information Security to protect corporate network assets.

2. Job Responsibilities and Duties:
Network Design and Planning
- Topology & Architecture: Design, update, and maintain comprehensive network architecture and topology diagrams. Plan for network scalability and business growth across LAN, WAN, SD-WAN, and Enterprise Wireless systems with built-in high availability and redundancy.
- Capacity Planning: Continuously assess network bandwidth, device capacity, and resource utilization to forecast needs and recommend infrastructure upgrades or expansions.
- Technology Evaluation: Research, benchmark, and evaluate emerging networking hardware, technologies, and automation tools to deliver technical feasibility studies and business-aligned adoption proposals.

Network Implementation and Deployment
- Deployment & Configuration: Supervise and participate in configuring and deploying core network hardware, including enterprise switches (Core/Distribution/Access) and edge wireless cloud controllers.
- Maintenance & Change Management: Schedule and execute routine maintenance, firmware updates, OS upgrades, and vulnerability patch management according to established Change Management procedures to prevent service interruptions.
- Performance Monitoring & Optimization: Monitor network health and performance utilizing enterprise tools (e.g., PRTG, Zabbix, ). Identify throughput bottlenecks, latency issues, or packet drops, and optimize configurations for maximum efficiency
- Fiber Network Design: Design and plan campus and inter-building fiber optic backbones, structured optical distribution networks, and pathway routes (underground conduits, aerial routes, and riser backbones). Define core requirements for deployments for office network and CCTV.
- Documentation & Standards: Establish and maintain standard operating procedures (SOPs), golden configuration templates, IP schema management, and network disaster recovery.

Data Center Facilities & Environmental Management
- Environmental Monitoring: Continuously monitor and manage Data Center/Server Room environments, including ambient temperature, humidity, power distribution, and equipment status using automated sensor alert systems.
- Preventive Maintenance (PM): Coordinate and supervise routine preventive maintenance schedules with specialized vendors for critical facility infrastructure, including Uninterruptible Power Supplies (UPS), emergency standby generators, Precision Air Conditioning (PAC/HVAC), and clean-agent fire suppression systems.

(Continue JD):
Team Supervision, Incident & Operational Governance
- Team Leadership & Work Allocation: Supervise day-to-day operations of the network administrators and engineers. Establish on call/shift rosters, allocate workloads, and track performance KPIs.
- Major Incident Troubleshooting: Lead root-cause analysis (RCA) and resolution during critical (P1/P2) network outages or severe degradation, providing high-level escalation support to the team.
- Mentorship & Technical Guidance: Provide continuous coaching, technical training, and skills development to junior engineers and network administrators.

CCTV
- Surveillance System Design & Deployment: Design and supervise the deployment of enterprise IP CCTV infrastructure, including camera selection (PTZ, Fixed, Dome), PoE switch provisioning, network segregation, and IP allocation schemes, NVR, and storage.

Project, Vendor & IT Asset Management (ITAM)
- Project Delivery: Lead network implementation initiatives by managing timelines, allocating technical resources, and collaborating across multidisciplinary IT teams to ensure timely execution.
- Vendor & SLA Management: Supervise relationships with ISPs, telecommunications partners, and network hardware/software vendors. Oversee contract execution, technical Scope of Work (SOW) alignment, and enforce Service Level Agreements (SLAs).
- IT Asset Lifecycle (ITAM): Maintain strict lifecycle controls over network hardware and software licenses. Oversee physical asset tagging, configuration backups, warranty/support contract renewals, and inventory accuracy.
- Task assigned by Deputy IT Manager.

3. Job Qualifications:
• Bachelor’s degree in IT, computer science, or related field of study
• Minimum of 4 to 6 years of progressive experience in enterprise network infrastructure, routing/switching, and network operations.
• Minimum of 1 to 2 years in a Supervisory, Team Lead, or Senior Network Engineer capacity.
• In-depth knowledge of enterprise routing and switching protocols (BGP, OSPF, VLAN, STP) and network redundancy protocols (HSRP/VRRP).
• Strong expertise with network devices (Cisco, Aruba, Ruijie, Huawei), Access Control Lists, and Network Segmentation.
• Hands-on experience with Enterprise Wireless Architectures, SD-WAN solutions, DNS/DHCP, and SNMP/Syslog monitoring platforms.
• Solid working knowledge of Data Center facilities management (UPS power distribution, cooling systems).
• Certified: Cisco CCNA or CompTIA Network+
• Proven analytical thinking, troubleshooting methodology, and high-pressure incident command capabilities.
• Demonstrated leadership, team coordination, and vendor negotiation skills.
• Excellent written and verbal technical communication skills in English.

4. Working Hour:
Monday to Friday : 8:00am to 17:30pm
(Lunch break 12pm to 13pm)

5. Relationship:
Network Infra Supervisor works and reports directly to IT Manager.

6. Workplace:
Network Infra Supervisor works at Peng Huoth Group Office (HQ) inside The Grand Star Platinum project.

7. Benefits:
- Annual Bonus
- Annual Trip.
- Annual Staff Party.
- Annual Salary Increment
- Education Sponsorship
- Internal and External Training
- Seniority Pay
- NSSF