Principal Cybersecurity Engineer - Firewall Platforms Firewall Policy with Operational Artificial Intelligence AI - AT&T

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.

We are hiring a Principal Cybersecurity Engineer (Firewall Platform) to join our high-performing cybersecurity Team. This is a hands-on keyboard, deeply technical, Engineering role for experts with real-world Firewall Policy operations and management experience at the large-scale enterprise level. You will be responsible for hands-on-keyboards managing, operating, and optimizing Enterprise Firewall Platforms, driving policy quality and consistency, and supporting troubleshooting and operational excellence across a complex, global environment. Over time, you will also help apply Operational Artificial Intelligence (AI) to improve efficiency, reliability, and security.

Key Responsibilities & Growth Expectations:

• Own the end-to-end firewall policy lifecycle, including creation, review, implementation, optimization, monitoring/soak, and decommissioning of policy changes.
• Execute changes safely within defined change management processes, ensuring proper validation, documentation, and post-change verification to meet intended outcomes.
• Operate, maintain, and continuously tune firewall infrastructure to ensure compliance, performance, resiliency, and strong security posture.
• Troubleshoot connectivity and security policy issues in collaboration with architecture, engineering, and operations teams across enterprise environments.
• Progress from guided execution to full ownership of complex policy and operational activities, demonstrating increasing autonomy in managing enterprise-scale network security challenges.
• Deliver high-quality, secure changes at scale while effectively navigating enterprise systems, workflows, and operational frameworks.
• Support a 24x7 operational model, including participation in on-call rotations and coordination with the Global Technology Operations Center (GTOC).
• Identify and drive opportunities for automation and operational excellence, leveraging tools such as Copilot and ChatGPT to improve efficiency, reduce manual effort, and enhance accuracy.
• Contribute to continuous improvement by adopting AI-assisted capabilities and automation to increase throughput, reduce risk, and strengthen overall security effectiveness.