Senior Network Engineer — Cisco, Firewalls & DC Ops

Insight Global; North Kingstown (RI); On-site; USD 90,000 - 120,000; Full time

Job summary

Insight Global is seeking a Network Engineer to provide Tier 2/3 support in an enterprise environment, handling routing, switching, firewall, and connectivity challenges across LAN, WAN, and data centers. You will troubleshoot Cisco, Fortinet, Palo Alto, and Aruba gear, work with SD-WAN, document networks, and collaborate with security and operations teams to ensure uptime and performance.

4+ years of hands-on experience are required; CCNA/CCNP certifications are preferred.

Qualifications

• 4+ years of hands-on Network Engineering experience.
• Strong experience supporting Cisco networking environments including routers and switches.
• Experience administering and troubleshooting Fortinet and Palo Alto firewalls.
• Experience with Aruba switching and/or wireless infrastructure.
• Strong routing and switching background with hands-on experience supporting OSPF and BGP.

Responsibilities

• Respond to network incidents, identify root causes, and implement corrective actions to restore services quickly.
• Work with monitoring tools and ticketing systems to proactively identify and resolve network performance issues.
• Maintain network documentation, diagrams, and configuration standards.
• Collaborate with infrastructure, security, and operations teams to ensure network reliability and uptime.
• Assist with data center network operations including switch deployments and fiber cross-connects.

Skills

Network engineering

Cisco networking

Routing and switching

Layer 2/3 networking

Network monitoring

SD-WAN exposure

Data center networking

Wireless networking

Documentation

VPN/NAT/ACL security basics

Education

CCNA or CCNP certification

Tools

NetBrain

Nagios

Cisco Nexus

Job description

Insight Global is seeking a Network Engineer to provide Tier 2/3 support in an enterprise environment, handling routing, switching, firewall, and connectivity challenges across LAN, WAN, and data centers. You will troubleshoot Cisco, Fortinet, Palo Alto, and Aruba gear, work with SD-WAN, document networks, and collaborate with security and operations teams to ensure uptime and performance.

4+ years of hands-on experience are required; CCNA/CCNP certifications are preferred.