Senior Network Engineer: Design, Security & Cloud

Quantum Technologies. LLC; Edison (NJ); On-site; USD 120,000 - 150,000; Full time

Job summary

Quantum Technologies. LLC is seeking an experienced Network Engineer to design, implement, and maintain enterprise network infrastructure across LAN/WAN/WLAN.

You will configure Cisco routers and switches, manage routing protocols, and enforce security policies with firewalls. The role covers data center and cloud networking, with monitoring tools like SolarWinds, Wireshark, and PRTG, and requires collaboration with infrastructure and security teams.

Qualifications

• Experience designing and maintaining enterprise LAN/WAN/WLAN networks.
• Hands-on with Cisco routers, switches, and network devices.
• Proficient with firewall technologies from Palo Alto, Cisco ASA, and Fortinet.

Responsibilities

• Design, configure, and maintain enterprise LAN, WAN, and WLAN network infrastructure.
• Install, configure, and troubleshoot Cisco routers, switches, and network devices.
• Manage routing protocols such as BGP, OSPF, EIGRP, and RIP.
• Configure and maintain VLANs, subnetting, IP addressing, and network segmentation.
• Implement and manage network security policies, firewalls, and ACLs.
• Configure site-to-site and remote-access VPN connectivity.
• Monitor network performance, availability, and bandwidth utilization.
• Troubleshoot network connectivity, latency, packet loss, and routing issues.
• Manage firewall technologies such as Palo Alto, Cisco ASA, and Fortinet.
• Implement network redundancy, load balancing, and high-availability solutions.
• Support data center networking and cloud networking environments.
• Perform network upgrades, migrations, and infrastructure improvements.
• Work with monitoring tools such as SolarWinds, Wireshark, and PRTG.
• Maintain network documentation, topology diagrams, and configuration records.
• Collaborate with infrastructure, security, and systems administration teams.

Skills

Networking

Routing protocols

Switching

Security

Automation

Tools

SolarWinds

Wireshark

PRTG

Cisco Catalyst

Nexus

Palo Alto

Fortinet

Cisco ASA

Job description

Quantum Technologies. LLC is seeking an experienced Network Engineer to design, implement, and maintain enterprise network infrastructure across LAN/WAN/WLAN.

You will configure Cisco routers and switches, manage routing protocols, and enforce security policies with firewalls. The role covers data center and cloud networking, with monitoring tools like SolarWinds, Wireshark, and PRTG, and requires collaboration with infrastructure and security teams.