System & Network Engineer (AMK)

MAESTRO HUMAN RESOURCE PTE. LTD.; Singapore; On-site; SGD 60,000 - 100,000; Full time

Job summary

MAESTRO HUMAN RESOURCE PTE. LTD. is seeking a Network and System Engineer to ensure uptime, security, and performance of client IT infrastructure.

You will manage end-to-end lifecycle of networking hardware and servers, from design to proactive troubleshooting. Responsibilities include designing LAN/WAN/WLAN, configuring routers, switches, VPNs, firewalls, and load balancers; administering Windows Server and Linux, AD/DNS/DHCP, and virtualization (VMware/Hyper-V).

Qualifications

• Bachelor’s degree or Diploma in Information Technology or related field.
• CCNA/CCNP/MCSA/MCSE or VCP certifications preferred.
• Strong knowledge of TCP/IP, subnetting and OSI model.
• Experience with Windows Server and Linux environments.
• Familiarity with Active Directory, DNS, DHCP, and GPO.

Responsibilities

• Design, deploy and manage LAN/WAN/WLAN solutions.
• Install and maintain routers, switches, firewalls, and load balancers.
• Manage VPNs, VLANs, and routing protocols (OSPF, BGP).
• Coordinate with ISPs for internet circuits and reliability.
• Administer Windows Server 2019/2022 and RHEL Linux.
• Manage AD, DNS, DHCP, and GPO configurations.
• Maintain virtualization using VMware vSphere or Hyper-V.
• Implement security hardening, patch management, and endpoint protection.
• Use monitoring tools (PRTG, SolarWinds) and document SOPs.

Skills

TCP/IP

Subnetting

OSI Model

Windows Server

Linux

Active Directory

Networking hardware

Education

Bachelor’s degree or Diploma in Information Technology

Tools

VMware vSphere

Microsoft Hyper-V

Fortinet Firewalls

Job description

Network and System Engineer

Role Objective

To ensure the maximum uptime, security, and performance of customer’s IT infrastructure. You will be responsible for the end-to-end lifecycle of both networking hardware and server systems, from initial design and deployment to proactive monitoring and complex troubleshooting.

Key Responsibilities

1. Network Administration & Engineering

• Design & Deployment: Architect and configure Local Area Networks (LAN), Wide Area Networks (WAN), and Wireless (WLAN) solutions.
• Hardware Management: Hands-on installation and maintenance of routers, switches (L2/L3), firewalls (Fortinet) and Load Balancers.
• Connectivity: Manage VPN tunnels (Site-to-Site and Client-to-Site), VLAN segmentation, and routing protocols (OSPF, BGP).
• ISP Coordination: Liaise with service providers to manage internet circuits and resolve external connectivity issues.

2. System Administration & Virtualization

• Server Management: Administer Windows Server (2019/2022) and Linux (RHEL) environments.
• Directory Services: Manage Active Directory, Group Policy (GPO), DNS, and DHCP services.
• Virtualization: Maintain virtual environments using VMware vSphere or Microsoft Hyper-V, including resource allocation and VM snapshots.

3. Security & Compliance

• Hardening: Implement security best practices to harden servers and network devices against cyber threats.
• Patch Management: Execute regular updates for OS and firmware to mitigate vulnerabilities.
• Endpoint Security: Manage enterprise Antivirus/EDR solutions and email security gateways.
• Backups: Oversee and ensure daily backups are successful.

4. Monitoring & Support

• Proactive Monitoring: Use tools (e.g. PRTG, SolarWinds) to monitor traffic patterns and system health.
• L2/L3 Troubleshooting: Serve as the escalation point for complex technical issues that the general IT support team cannot resolve.
• Documentation: Maintain up-to-date network diagrams, asset inventories, and standard operating procedures (SOPs).

Required Qualifications & Skills

• Education: Bachelor’s degree or Diploma in Information Technology, or a related field.
• Certifications (Preferred): CCNA/CCNP (Cisco), MCSA/MCSE (Microsoft), or VCP (VMware).
• Technical Proficiencies:
• Strong grasp of TCP/IP, Subnetting, and the OSI Model.
• Experience with Storage Area Networks (SAN) and NAS.
• Familiarity with Automation/Scripting (PowerShell, Python, or Ansible).
• Soft Skills: Analytical mindset, ability to work under pressure during outages, clear communication skills to articulate problem statement to customers and documenting technical changes and incident reports.
• Preferably with minimum 2 years of industry experience.
• 5 day week @ AMK area (go to site whenever required)