Administrator III, IT Infrastructure

Invenergy, LLC; Chicago (IL); Hybrid; USD 88,000 - 118,000; Full time

Benefits offered by this job

Medical insurance

Dental & Vision

401k

Paid time off

Job summary

Invenergy, LLC is seeking a Network Engineer to design, implement, and support the enterprise LAN/WAN infrastructure in a hybrid Chicago-based role. You will work with Cisco routers/switches, Palo Alto firewalls, and Aruba wireless solutions to ensure reliability, security, and compliance.

The ideal candidate has 3+ years of enterprise networking experience, strong scripting ability, and knowledge of NERC CIP.

Qualifications

• Bachelor’s degree in Computer Science or Information Technology.
• 3+ years of network engineering in an enterprise environment.
• Experience configuring Cisco routers and switches.
• Experience with Palo Alto firewalls and Aruba access points.
• Knowledge of layer 2/3 designs and network security.
• Familiarity with NERC CIP compliance.

Responsibilities

• Design, configure, and maintain enterprise LAN/WAN networks using Cisco gear.
• Deploy, manage, and troubleshoot Palo Alto Networks firewalls, VPNs, and security policies.
• Implement and support Aruba wireless access, controllers, and clearpass policy management.
• Develop and maintain network diagrams, runbooks, and SOPs.
• Design, build, and maintain scripts (Python/PowerShell) to automate tasks.
• Participate in a 24x7 on-call rotation for critical support.

Skills

Network engineering

Cisco

Palo Alto

Aruba wireless

Scripting

NERC CIP

Education

Bachelor's degree in Computer Science or IT

Tools

SolarWinds

Nagios

Monitor Logic

Azure ExpressRoute

Job description

## Administrator III, IT InfrastructureApply: Chicago, IL: Full time: Posted Yesterday: R11279Invenergy is North America’s largest privately held developer, owner, and operator of power infrastructure. With 25 years of trusted execution, we deliver reliable, affordable energy through a diverse portfolio that includes natural gas, solar, land-based wind, energy storage, transmission, and domestic manufacturing. Headquartered in Chicago, we develop, own, and operate large scale projects that power communities and support the energy future. Invenergy follows a hybrid schedule, working in office Monday through Thursday and remotely on Fridays if work permits. This position will be open for application for at least 3 calendar days from the posting date. This position will remain open for application based on business need, which may be before or after the 3-day posting window.**Job Description****Position Overview**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, scripting, and AI tool fundamentals is a plus.**Responsibilities*** 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.* Design, build, and maintain python, powershell, and bash scripts to automate repeated network configuration tasks.* Participate in a 24×7 on-call rotation to provide critical support.**Minimum Qualifications*** 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.**Preferred Qualifications*** 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 and experience with using AI tools such as Claude Code, Chat GPT Codex, Microsoft Copilot, and self-hosted inference to build and interact with network solutions.* 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).#LI-HYBRID**Base Pay**$88,000.00 - $118,000.00 USD Annual Bonus: 20% - 30%The base pay range reflects the minimum and maximum target salary for the position. Invenergy considers a number of factors when determining base pay offers such as the scope and responsibilities of the position and the candidate's experience, education and skills. In addition to base pay, the total annual compensation package may also include eligibility to participate in our bonus program(s) which are designed to reward individual and company performance. Your recruiter can share more about bonus eligibility for this position during the hiring process. Invenergy offers a variety of other benefits including medical, dental and vision insurance, 401k, paid time off, etc.Invenergy LLC is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to, among other things, race, color, religion, sex, sexual orientation, gender identity, national origin, age, status as a protected veteran, or disability.