Job Description Summary:

This Lead System Engineer role is a technical lead position for 5G Mobility Core + security + new technology introduction (NTI). It blends:

• Tier-3 outage leadership (real-time restoration, directing vendors/Operations resources)

• Security validation and audit readiness (controls, hardening, risk mitigation)

• Platform certification / regression testing for major vendors (Ericsson/HPE/Cisco/AMDOCS)

• Certify MOPs and operationalization (handoff to implementation/ops teams)

• RCA and problem management (trend analysis, chronic issue elimination)

• On-call expectations (24x7 escalation)

Core competency areas:

1. Mobility Core Architecture Expertise

• EPC (MME/SGW/PGW), 5G Core (AMF/SMF/UPF/UDM/AUSF/PCF) and service-based architecture concepts

• Call/service flows, signaling, bearer/session management, roaming/interconnect impacts

2. Security Audits & Mitigation in Core Networks

• Security control validation: secure configs, access controls, segmentation, key/cert management

3. Policy & Profile / Subscriber Management Services

4. AON  / Azure Operator Nexus experience preferred

• 3+ years Kubernetes

5. Experience designing, implementing and/or troubleshooting Mobility Evolved Packet Core (EPC) and associated service flow

Weekly Hours:

Time Type:

Location:

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 law. In 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.