Administrator III, IT Infrastructure

Invenergy-posted 3 months ago
$85,000 - $115,000/Yr
Full-time • Mid Level
Chicago, IL
1,001-5,000 employees
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Invenergy is seeking a Network Engineer to join our Technology Solutions team. In this role, you will design, implement, and support our enterprise network infrastructure—ensuring reliability, security, and NERC CIP compliance. The ideal candidate has hands-on experience with Cisco, Palo Alto Firewalls, and Aruba Wireless products. A solid understanding of NERC CIP fundamentals is a plus.

  • Design, configure, and maintain enterprise LAN/WAN networks using Cisco routers, switches, and wireless solutions.
  • Deploy, manage, and troubleshoot Palo Alto Networks firewalls, VPNs, and security policies.
  • Implement, and support Aruba wireless access, including controllers, access points, and network access control ClearPass policy management.
  • Monitor network health and performance; identify bottlenecks and implement optimizations.
  • Ensure network compliance with NERC CIP requirements through documentation, audits, and control implementations.
  • Collaborate with cross-functional teams on project delivery, change management, and incident response.
  • Experience with data center and local network support and design.
  • Develop and maintain network diagrams, runbooks, and standard operating procedures.
  • Participate in a 24×7 on-call rotation to provide critical support.
  • Bachelor’s degree in Computer Science and Information Technology.
  • 3+ years of network engineering experience in an enterprise environment.
  • Proficiency configuring and troubleshooting Cisco routers, switches.
  • Demonstrate working knowledge of layer 2 / 3 network designs.
  • Experience implementing and managing wireless access points or industry equivalent (i.e. Cisco, Aruba controllers, APs).
  • Strong problem-solving skills and attention to detail.
  • Excellent verbal and written communication skills.
  • Some travel required.
  • Eligible to work in the United States without the need for employer visa sponsorship now or in the future.
  • Cisco Certified Network Associate (CCNA) or Cisco Certified Network Professional (CCNP).
  • Palo Alto Networks Certified Network Security Engineer (PCNSE).
  • Aruba Certified Mobility Associate (ACMA) or Aruba Certified ClearPass Professional (ACCP).
  • Formal training or certification in NERC CIP compliance.
  • Working knowledge of NERC CIP standards and their application to critical infrastructure and/or formal training or certification in NERC CIP compliance.
  • Experience in the energy, utilities, or critical infrastructure sectors.
  • Scripting skills (Python, Ansible, etc.) for network automation.
  • Familiarity with network monitoring and management tools (SolarWinds, Nagios, Monitor Logic, etc.).
  • Experience with cloud networking services (Virtual Networks, ExpressRoute, VWAN, VPN Gateways, Network Security Groups) (Azure / AWS).
  • Medical, dental and vision insurance.
  • 401k.
  • Paid time off.
  • Annual bonus: 20 - 30%.
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