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Network Engineer

Lumilens • English: B2 • Servers & Data Center Hardware • Optical Communications • Python • PowerShell • Bash • 2 days ago
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Salary
≈ $40k – $98k per year (Estimated)
Location
In office (Singapore)
Seniority
Staff · 8+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 1, 2026. First seen by Alion on Sep 29, 2026. Lumilens scores A on the Alion truth index.

Overview
Company
Impact
Profile match

Lumilens

Lumilens is a photonics startup that designs and manufactures optical interconnects and transceivers that link servers in large AI data center GPU clusters, headquartered in San Jose, California. Led by chief executive and co-founder Ankur Singla with a team drawn from Cisco, Juniper, Meta, Lumentum and Coherent, it launched publicly in 2026 backed by Mayfield, reporting more than 900 million dollars in funding and a 5.5 billion dollar valuation. Its openings are mostly for optical design, test and manufacturing engineers, signal and power integrity engineers, quality and failure analysis engineers and manufacturing site supervisors, including roles in Thailand.
lumilens.com • HQ: San Jose, United States • Servers & Data Center Hardware • Optical Communications • Optics & Photonic Components • 201-500 employees • Est. 2024
Tech stack of Lumilens

ABOUT THE ROLE

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

  • Lead SASE/SD-WAN POC & deployment

  • 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

  • Implement Zero Trust, network segmentation & ACL policies

  • 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

  • SD-WAN / SASE: Cato Networks, Meraki, Fortinet or equivalent

  • Wireless: Enterprise Wi-Fi - controller-based & cloud-managed APs

  • Cloud Networking: Azure VNet, ExpressRoute, hybrid connectivity

  • Microsoft 365: Teams, Exchange Online, SharePoint, Entra ID network integration

  • 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)

  • Strong verbal & written English communication

  • Experience presenting proposals to senior management

  • Cross-cultural collaboration across APAC & US time zones

GOOD TO HAVE

  • SASE / ZTNA deployment experience

  • NetSuite ERP or SaaS application SSO troubleshooting

  • CCTV / physical security network integration

  • Enterprise collaboration platform migration (Slack → Teams)

  • Lab / production network segregation in manufacturing environments

  • Entra ID / Azure AD security group and conditional access policies

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