Network Engineer

Position: NETWORK ENGINEER

Location: South Barrington

Responsibilities

• Design, configure, troubleshoot, and secure network server environments utilizing Juniper EX switches, Cisco Identity Services Engine (ISE), and Cisco Adaptive Security Infrastructure (ASI).
• Deploy and manage Cisco ISE for centralized network access control across enterprise networks.
• Use Cisco ASI platforms to detect threats, analyze logs, and improve security posture.
• Perform incident analysis and response using Cisco ASI tools.
• Develop complex network designs that integrate routing protocols such as OSPF, BGP, and EIGRP.
• Implement Layer 2 and Layer 3 technologies, including STP, Ether Channel, HSRP, VRRP, OSPF, EIGRP, and BGP.
• Implement and maintain ASM tools to ensure application security across enterprise networks.
• Conduct root‑cause analysis for network and application performance issues using APM tools.
• Troubleshoot OSPF/BGP/EIGRP and STP issues.
• Design and implement load balancing solutions with F5 Big‑IP LTM/GTM for high availability and performance.
• Work on handling traditional switching technologies such as STP, RSTP, MSTP, and VTP in non‑ACI environments.
• Work with routing protocols, VTP, and MSTP.
• Configure and manage Cisco wireless access points, including 3800, 1800, and 2700 series.
• Design, deploy, and troubleshoot Cisco Identity Services Engine for network access control.
• Configure, deploy, and troubleshoot Cisco Catalyst and Nexus switches and routers.
• Monitor routing, switching, and traffic.
• Manage access control using Cisco ISE while configuring and securing firewalls.
• Troubleshoot and resolve complex network security issues involving traffic analysis between ISE and firewall rules, minimizing operational downtime.