Network Engineer

Cognizant is seeking a Network Engineer in Louisville, KY for a full – time onsite opportunity. This role will work onsite out of our Cognizant/Client location in Louisville, KY. Applicants must be authorized to work in the US. This role does not offer visa sponsorship now or anytime in the future.

• Create and maintain IT and OT related networks including LAN/WAN infrastructure.
• Design and implement network solutions to improve performance, reliability, and security.
• Install, configure, and support EMS (Energy Management Systems) network equipment including Cisco switches, routers, and firewalls.

• Monitor and manage network traffic using tools such as Solar Winds.
• Proficiency in using Wireshark or other tools for network troubleshooting.
• Perform routine checks, updates, and performance tuning.

• Develop and implement firewall rules to meet operational and compliance requirements.
• Proactively review and optimize firewall rules to enhance security posture.
• Implement network security policies including VPNs and access control systems.
• Perform vulnerability assessments and apply patches to maintain NERC CIP and TSA compliance.

• Support and maintain RSA two-factor authentication systems.
• Configure and manage TACACS and Cisco ISE for network access control.

• Maintain and update all network-related documentation including configurations, modifications, and troubleshooting procedures.

• Work closely with other IT Teams and businesses to ensure smooth system integration and cross-functional support.

• Troubleshoot and resolve highly complex network issues across multiple platforms.
• Participate in on-call rotation to provide 24/7 network support.
• Provide implementation, troubleshooting, maintenance, and user support as needed.

• 8 plus years of hands on experience in Cisco Routing, Switching and Firewall.
• NERC, CIP and GAS TSA.
• Experience working with Solarwinds and Wireshark.
• RSA two-factor authentication, TACACS, and Cisco ISE.
• Proven ability to troubleshoot complex network issues and implement effective solutions.