Senior Cybersecurity Engineer – Endpoint Security (AI Enabled Operations)

About this role

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.

# Role Summary

We are seeking a Senior Cybersecurity Engineer to secure and modernize our enterprise endpoint security environment. The role will support broader endpoint security platforms such as EDR, DLP, VPN, secure web access, and endpoint visibility platforms. Across both mobile and endpoint domains, the role emphasizes AI‑enabled monitoring, analytics, triage, automation, and reporting to improve security outcomes while reducing operational overhead.

This is a hands‑on engineering role operating at enterprise scale, working closely with Security Operations, Endpoint, IT, and business teams.

# Key Responsibilities

Support and help engineer endpoint security controls for:

• **Endpoint Detection & Response (EDR)** (e.g., SentinelOne, Microsoft Defender, Cortex XDR)
• **Data Loss Prevention (DLP)** (e.g., Microsoft Purview/Defender, Forcepoint)
• **Remote Access VPN** (e.g., Palo Alto GlobalProtect or equivalent)
• **Proxy / Secure Web Access controls** (endpoint agent and policy enforcement where applicable)
• **Endpoint visibility, posture, and response platforms** (e.g., **Tanium** or equivalent endpoint management and telemetry platforms)

Additional responsibilities include:

• Provide Tier‑3 engineering support, including troubleshooting, policy tuning, exclusions, performance analysis, and vendor escalation....