Network Engineer 3

The AES Group•Irving, TX

4d•Onsite

About The Position

The Network Engineer 3 will provide operational support for network security, firewall policy management, Network Access Control (NAC), and application protection services for a client in the industrial and manufacturing industry. The role supports secure and reliable network services, network improvements, risk reduction, and technical changes through testing and controlled production deployments. The preferred location is Nashville, TN; Dallas, TX, and East Peoria, IL are also listed. The position is on-site five days per week. The stated pay rate is $45–$48 per hour. The successful candidate will bring approximately 5–7 years of relevant experience in network operations and security, strong troubleshooting skills, and functional knowledge of Cisco Identity Services Engine (ISE). They will work with technical teams, stakeholders, and Product Owners to investigate incidents, resolve issues, test changes, and improve network security service reliability.

Requirements

Bachelor's degree in Cybersecurity, Security Engineering, Security Architecture, Computer Science, or a related field; equivalent practical experience is also considered.
Approximately 5–7 years of relevant experience in network engineering, network security, firewall operations, or related infrastructure services.
Working knowledge of cybersecurity principles, network security best practices, and enterprise network management.
Understanding of network architecture, data flows, traffic patterns, and communication protocols.
Strong knowledge of firewall management, firewall policy administration, and network protocols.
Functional knowledge and hands-on experience with Cisco Identity Services Engine (ISE) and Network Access Control (NAC).
Experience troubleshooting network security incidents, firewall issues, access control problems, and related technical challenges.
Experience supporting network operations, security policy management, testing, change implementation, and production deployments.
Advanced customer service skills, with a focus on service quality and stakeholder satisfaction.
Excellent troubleshooting, analytical thinking, and problem-solving abilities.
Effective verbal and written communication skills.
Ability to collaborate with cross-functional technical teams, internal stakeholders, and Product Owners.
Strong attention to detail and ability to manage operational issues in a structured, service-oriented environment.

Nice To Haves

Familiarity with network segmentation, application protection, proxy policies, and security risk reduction initiatives.

Responsibilities

Provide day-to-day operational support for network security services, firewall policies, and related technical offerings.
Perform Network Access Control (NAC) governance and administration using Cisco Identity Services Engine (ISE).
Support network improvement and risk reduction initiatives, including network segmentation, application protection, and hardware refresh projects.
Manage and support application protection services, proxy policies, and associated security configurations.
Maintain network security products, tools, and technical services to support operational reliability and compliance with established security practices.
Troubleshoot technical issues involving firewalls, cloud policies, network traffic, and other supported network services.
Collaborate with internal technical teams and stakeholders to investigate incidents, identify root causes, and implement solutions.
Test network configuration changes, new processes, and service deployments before production implementation.
Partner with Product Owners to resolve technical issues and improve the performance and reliability of network security services.
Implement and maintain technical and process requirements related to firewall policies, network posture, access controls, and web-based portals.
Identify operational gaps, reduce risks, and strengthen network security practices through continuous service improvement.