OT Network Engineer

The AES Corporation

OT Network Engineer responsible for Cisco network infrastructure in renewable energy operations at AES Corporation. Collaborating across IT, OT, and Cybersecurity teams for reliable network services.

Posted 6/10/2026full-timeHouston • Arizona, Colorado, Texas, Utah • 🇺🇸 United StatesMid-LevelSenior💰 $105,000 - $131,325 per yearWebsite

Tech Stack

Tools & technologies

Cyber SecurityFirewallsSwitching

About the role

Key responsibilities & impact

Design and deploy Cisco network infrastructure (routers, switches, and firewalls) across multiple renewable energy sites
Configure and maintain Cisco Firepower/FTD firewalls and Cisco SD-WAN architecture
Build and monitor IPsec/GRE tunnels between data centers, substations, and field devices
Ensure high availability and redundancy across primary and secondary data centers
Manage site connectivity including private circuits, LTE failover, and remote access solutions
Support SCADA network integration and ensure proper segmentation between IT and OT networks
Coordinate with vendors for network commissioning, circuit turn-up, and troubleshooting
Implement network monitoring, logging, and alerting for uptime and security
Assist in cybersecurity compliance activities (e.g., NERC CIP or company internal policies)
Support controlled change management processes and scheduled maintenance windows
Maintain accurate network documentation, IP address plans, and device inventory
Participate in infrastructure and compliance-related projects (e.g., network upgrades, site expansions, datacenter migrations)
Communicate clearly with technical and non-technical stakeholders

Requirements

What you’ll need

Bachelor’s Degree (Information Technology / Computer Science / Network Engineering) preferred or equivalent with relevant work experience required.
5+ years’ experience to include: Cisco network engineering (routing, switching, and firewalls)
Experience with Cisco Firepower/FTD, ASA, and SD-WAN platforms
Strong knowledge of IPsec/GRE VPN tunnels, BGP, OSPF, and VLAN architecture, and routing protocols (BGP, OSPF, EIGRP).
Familiarity with network monitoring tools (e.g., SolarWinds, PRTG, or similar)
Solid grasp of firewall rules, security zones, and remote access configurations
Experience working in regulated or compliance-driven environments
Strong written and verbal communication skills
Ability to work independently and manage multiple technical responsibilities
Physical ability to lift and maintain 70 LBS for short period of time
Ability to climb a ladder over 4 feet
Have reliable transportation
Able to travel up to 25% and in field environments during project commissioning and support remote site deployment.

Benefits

Comp & perks

medical, dental, and vision coverage
life insurance
401(k) eligibility
paid time off (including vacation, sick leave time, and parental leave)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Cisco network engineeringroutingswitchingfirewallsCisco FirepowerCisco FTDCisco SD-WANIPsec VPNGRE VPNBGP

Soft Skills

strong written communicationstrong verbal communicationindependent workmulti-tasking