Principal Firewall Policy Engineer – Onsite

AT&T; Charlotte (NC); On-site; USD 155,000 - 261,000; Full time

Benefits offered by this job

Medical/Dental/Vision coverage

401(k) plan

Tuition reimbursement

Paid Time Off and Holidays

Paid Parental Leave

Employee wellness programs

Employee discounts

Job summary

AT&T is seeking a Principal Cybersecurity Engineer (Firewall Policy Implementation) to lead hands-on firewall policy operations at a large-scale enterprise. This onsite role requires deep expertise in firewall platforms, policy management, and AI-assisted automation, with mentored ramp-up and eventual on-call participation.

The candidate will optimize rule sets, drive policy lifecycle efficiency, and collaborate across IT, network, and security teams to deliver secure, compliant outcomes.

Qualifications

• 7+ years’ experience operating and maintaining Firewall Policies (Rule Sets).
• Extensive hands-on experience in production firewall policy management at large-scale environments.
• Strong operational discipline: change control validation, rollback planning, and post-change verification.
• Proven ability to troubleshoot Network/Security and Firewall Policy issues under time pressure.
• Experience in large-scale environments with multiple stakeholders.

Responsibilities

• Optimize and implement firewall rules to mitigate risk and protect data.
• Own day-to-day firewall policy operations, tuning, cleanup and decommissions.
• Safely apply firewall policy changes within defined change processes with validation.
• Troubleshoot connectivity and policy issues and outages with cross-team collaboration.
• Identify and drive automation and AI opportunities to improve efficiency.

Skills

Firewall policy management

Palo Alto

AI/Automation

Change management

Troubleshooting

Networking fundamentals

Python scripting

Panorama

CI/CD with ServiceNow

Education

Bachelor’s degree in Computer Science or Cybersecurity

Certification (e.g., CISSP/CISM)

Tools

Panorama

Palo Alto CLI

ServiceNow workflows

GitHub Copilot

Visual Studio Code

Jupyter Notebook

Job description

AT&T is seeking a Principal Cybersecurity Engineer (Firewall Policy Implementation) to lead hands-on firewall policy operations at a large-scale enterprise. This onsite role requires deep expertise in firewall platforms, policy management, and AI-assisted automation, with mentored ramp-up and eventual on-call participation.

The candidate will optimize rule sets, drive policy lifecycle efficiency, and collaborate across IT, network, and security teams to deliver secure, compliant outcomes.