Network Engineer

Lumilens; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Lumilens is seeking a seasoned Network Engineer to design, manage, and secure a global multi-site network spanning India, Thailand, Singapore, and the US. The role requires deep networking expertise and strong communication to collaborate with globally distributed teams.

The candidate will design and maintain LAN/WAN/SD-WAN, manage site-to-site VPNs, and support hybrid cloud connectivity across Azure, M365, and Entra ID, while ensuring secure access and optimal performance.

Qualifications

• 8–10 years of enterprise network engineering experience.
• Multi-site, multi-country network management.
• CCNP / Fortinet NSE4+ / CompTIA Network+ or Security+ (preferred).
• Experience presenting proposals to senior management.

Responsibilities

• Design & maintain LAN/WAN/SD-WAN across all global sites.
• Manage site-to-site VPN tunnels across all regions.
• Architect NAT Gateway & Linux jump host solutions for secure internet access.
• Configure and manage enterprise firewalls, switches, routers & Wi‑Fi.
• Administer DNS, DHCP, IPAM and network monitoring tools.
• Support hybrid cloud connectivity (Azure / M365 / Entra ID).
• Manage SSO integrations & identity-aware network access (SAML/OIDC).
• Evaluate vendor RFQs with technical and cost-benefit analysis.
• Document architecture, runbooks & change management records.
• Collaborate with global teams across IT, HR, Finance & Operations.

Skills

Routing & Switching

Firewalls

VPN

Wireless

Linux Networking

Monitoring

Scripting

Education

B.E./B.Tech in CS/IT/ECE

Tools

PRTG

SolarWinds

Zabbix

Grafana

Job description

Lumilens is looking for a seasoned Network Engineer to design, manage, and secure our global multi-site network spanning India, Thailand, Singapore, and the US. The role demands deep networking expertise, cloud integration experience, and strong communication skills to collaborate across globally distributed teams and stakeholders.

KEY RESPONSIBILITIES

• Design & maintain LAN/WAN/SD-WAN across all global sites
• Manage site-to-site VPN tunnels across all 4 regions
• Architect NAT Gateway & Linux jump host solutions for secure internet access
• Configure and manage enterprise firewalls, switches, routers & Wi-Fi
• Administer DNS, DHCP, IPAM and network monitoring tools
• Support hybrid cloud connectivity (Azure / M365 / Entra ID)
• Manage SSO integrations & identity-aware network access (SAML/OIDC)
• Evaluate vendor RFQs with technical and cost-benefit analysis
• Document architecture, runbooks & change management records
• Collaborate with global teams across IT, HR, Finance & Operations

TECHNICAL REQUIREMENTS

• Routing & Switching: Cisco / Aruba / Juniper — VLANs, STP, BGP, OSPF, LAG
• Firewalls: FortiGate, Palo Alto, pfSense — policy management & threat mitigation
• VPN: IPSec, SSL-VPN, site-to-site & remote access tunnels
• Wireless: Enterprise Wi-Fi — controller-based & cloud-managed APs
• Linux Networking: NAT, iptables, routing, jump host administration
• Monitoring: PRTG, SolarWinds, Zabbix, or Grafana
• Scripting: Python / Bash / PowerShell for automation & diagnostics

QUALIFICATIONS

• B.E. / B.Tech in CS, IT, ECE or related field
• 8–10 years of enterprise network engineering experience
• Multi-site, multi-country network management
• CCNP / Fortinet NSE4+ / CompTIA Network+ or Security+ (preferred)
• Experience presenting proposals to senior management

GOOD TO HAVE

• NetSuite ERP or SaaS application SSO troubleshooting
• CCTV / physical security network integration
• Lab / production network segregation in manufacturing environments
• Entra ID / Azure AD security group and conditional access policies