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 wont just imagine the future-youll 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 AIenabled monitoring analytics triage automation and reporting to improve security outcomes while reducing operational overhead.

This is a handson 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 Tier3 engineering support including troubleshooting policy tuning exclusions performance analysis and vendor escalation.
• Standardize endpoint security baselines and deployment patterns to ensure consistent control coverage and user experience.
• Extend and adapt AIdriven intake enrichment and approval workflows established in Mobile Security Operations to endpoint security use cases including:
  • Automated triage of endpoint security exceptions and access requests
  • Correlation of endpoint posture telemetry and behavioral signals to defined risk criteria
  • Generation of structured risk and justification summaries to support faster more consistent decisions
• Design and maintain policyascode and AIassisted approval orchestration for endpoint controls enabling:
  • Fasttrack handling of lowrisk exceptions
  • Escalation of highrisk cases for engineering or security review
  • Integration with EDR DLP VPN proxy endpoint visibility platforms and ticketing systems to reduce operational friction and manual effort
• Apply AIassisted techniques for alert correlation risk scoring trend analysis and control drift detection to continuously improve endpoint security operations.

AIEnabled Security Modernization & Automation (CrossCutting)

• Apply AI and analytics across mobile and endpoint security operations including:
  • AIassisted alert enrichment correlation and triage
  • Risk scoring based on device posture compliance vulnerabilities and behavioral signals
  • Trend analysis for control coverage health drift and recurring incidents
  • Automated operational compliance and executivelevel reporting
• Develop or support automation using APIs and scripting to:
  • Improve policy deployment and exception handling
  • Accelerate incident response actions
  • Reduce repetitive manual tasks and administrative overhead

CrossFunctional Collaboration & Operational Excellence

• Partner with Security Operations Endpoint IT and business teams to align security controls with operational needs.
• Translate technical security requirements into clear actionable guidance for technical and nontechnical stakeholders.
• Maintain runbooks standards and operational documentation leveraging AIenabled tools to keep content current and consistent.
• Support continuous improvement through root cause analysis metrics and feedback loops.

Experience & Skills

Required

• 3 years of experience in endpoint security or enterprise endpoint engineering.
• Experience supporting at least one endpoint security technology (EDR DLP VPN proxy/web or endpoint visibility platforms).
• Strong understanding of endpoint operating systems (Windows iOS Android; macOS/Linux a plus).
• Proven troubleshooting and analytical skills in large enterprise environments.
• Strong written and verbal communication skills.

AI & Automation Experience (Required or Strongly Preferred)

• Experience using AI analytics or automation to improve security operations or IT workflows.
• Practical exposure to:
  • Alert triage and signal correlation
  • Risk scoring or posture analysis
  • Trend analysis and operational reporting
  • Documentation or support automation
• Ability to apply AI responsibly and pragmatically to improve security outcomes and reduce operational friction.

Preferred Qualifications

• Experience supporting 10000 endpoints.
• Familiarity with compliance or regulatory requirements impacting endpoint and mobile security (e.g. GDPR HIPAA).
• Scripting or automation experience (e.g. PowerShell Python REST APIs).
• Security or platform certifications (e.g. CompTIA Security Microsoft Security certifications vendorspecific endpoint mobility or Tanium certifications).

Supervisor:

No

Our Senior Cybersecurity earns between$128400-$192600 USD Annual not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography experience expertise and education/training.

Joining our team comes with amazing perks and benefits:

• Medical/Dental/Vision coverage
• 401(k) plan
• Tuition reimbursement program
• Paid Time Off and Holidays (based on date of hire at least 23 days of vacation each year and 9 company-designated holidays)
• Paid Parental Leave
• Paid Caregiver Leave
• Additional sick leave beyond what state and local law require may be available but is unprotected
• Adoption Reimbursement
• Disability Benefits (short term and long term)
• Life and Accidental Death Insurance
• Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
• Employee Assistance Programs (EAP)
• Extensive employee wellness programs
• Employee discounts up to 50% off on eligible AT&T mobility plans and accessories
• AT&T internet (and fiber where available) and AT&T phone.

#LI-Onsite Full-time office role-

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It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age color national origin citizenship status physical or mental disability race religion creed gender sex sexual orientation gender identity and/or expression genetic information marital status status with regard to public assistance veteran status or any other characteristic protected by federal state or local addition AT&T will provide reasonable accommodations for qualified individuals with disabilities.AT&T is a fair chance employer and does not initiate a background check until an offer is made.