Lead System Engineer

AT&T

Lead System Engineer role with a focus on Application and Network Security at AT&T. Involves designing technical solutions and maintaining system performance in Texas.

Posted 5/21/2026full-timeRichardson • Texas • 🇺🇸 United StatesSenior💰 $158,200 - $237,400 per yearWebsite

About the role

Key responsibilities & impact

Design applications, platforms or services by translating core business requirements into comprehensive technical solutions
Ensure functional, performance, and reliability through hands-on system design
Conduct performance and reliability analysis, and resolve system issues and bottlenecks
Operate and oversee security controls
Define and evolve secure architectures across applications, systems, and networks
Enforce security policies, ensure regulatory compliance
Proactively identify security risks and lead incident response efforts
Collaborate with IT, Legal, vendors, and business teams

Requirements

What you’ll need

Bachelor’s degree (BS/BA) desired in Computer Science
5+ years of related experience
Certification is required in some areas
At least one industry cert highly recommended: CISSP, CEH, CCIE Security, CompTIA Security+, and ISC2

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

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Applicant Tracking System Keywords

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Hard Skills & Tools

system designperformance analysisreliability analysissecurity architectureincident response

Soft Skills

collaborationproblem-solvingleadership

Certifications

CISSPCEHCCIE SecurityCompTIA Security+ISC2