Network Security Engineer: Enterprise Firewall/NAC

Diversified Services Network, Inc.; Dallas, Nashville, East Peoria (TX, TN, IL); On-site; USD 90,000 - 95,000; Full time

Benefits offered by this job

401(k)

Dental insurance

Vision Insurance

Disability insurance

Employee assistance program

Health insurance

Health savings account

Life insurance

Paid time off

Paid Holidays

Job summary

Diversified Services Network, Inc. is seeking a full-time Network Security Engineer to join our team at our Dallas, TX office (also in Nashville, TN and East Peoria, IL).

The role blends hands-on operations with project work to strengthen security posture across a global enterprise. Responsibilities include daily operational support for network and firewall policy services, NAC governance with Cisco ISE, and driving network improvement initiatives while collaborating with product owners and

Qualifications

• Bachelor's degree or equivalent experience in a related field.
• 5–7 years of relevant experience required.
• Solid knowledge of firewall management and network protocols.
• Experience with Cisco ISE and NAC governance is preferred.

Responsibilities

• Provide daily operational support for network and firewall policy services.
• Perform NAC governance using Cisco ISE.
• Lead network improvement and risk reduction initiatives including segmentation and hardware refresh.
• Manage application protection and proxy policy activities.
• Collaborate with internal teams to troubleshoot firewall, cloud policy and related products.
• Test and QA changes and new processes before production release.
• Assist Product Owners with technical aspects of firewall policy and network posture.

Skills

Cybersecurity best practices

Network management

Firewall management

Education

Bachelor's degree in Cybersecurity/ Security Engineering/ Architecture/ CS

Tools

Cisco ISE

Job description

Diversified Services Network, Inc. is seeking a full-time Network Security Engineer to join our team at our Dallas, TX office (also in Nashville, TN and East Peoria, IL).

The role blends hands-on operations with project work to strengthen security posture across a global enterprise. Responsibilities include daily operational support for network and firewall policy services, NAC governance with Cisco ISE, and driving network improvement initiatives while collaborating with product owners and