Senior Cybersecurity Engineer – Mobile & Endpoint Security

AT&T

Senior Cybersecurity Engineer focusing on mobile and endpoint security at AT&T. Modernizing enterprise security with AI-enabled operations and collaborating across teams.

Posted 5/3/2026full-timeCharlotte • North Carolina • 🇺🇸 United StatesSenior💰 $128,400 - $192,600 per yearWebsite

Tech Stack

Tools & technologies

AndroidiOSLinuxMacOS

About the role

Key responsibilities & impact

Monitor, investigate, and respond to mobile device security events and incidents, including policy violations, compliance drift, and emerging threats.
Deploy, configure, and tune mobile security policies using MDM/UEM platforms (e.g., Intune, Workspace ONE, MobileIron).
Develop, test, and maintain persona‑based mobile security baselines and compliance rules for office, field, and remote users.
Analyze mobile telemetry, compliance posture, and alert data to identify risk, drive remediation, and continuously improve control effectiveness.
Apply AI‑assisted techniques for alert correlation, risk scoring, trend analysis, and control drift detection to continuously improve endpoint security operations.
Partner with Security Operations, Endpoint, IT, and business teams to align security controls with operational needs.
Maintain runbooks, standards, and operational documentation, leveraging AI‑enabled tools to keep content current and consistent.

Requirements

What you’ll need

3+ years of experience in mobile security, endpoint security, or enterprise endpoint engineering.
Hands‑on experience with MDM/UEM platforms supporting iOS and Android.
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.

Benefits

Comp & perks

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.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

mobile securityendpoint securityenterprise endpoint engineeringMDMUEMEDRDLPVPNalert triagerisk scoring

Soft Skills

troubleshootinganalytical skillswritten communicationverbal communication