**Job Description:** **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. Our Network Security Infrastructure team is seeking an experienced Lead Cybersecurity Network Engineer to evaluate the security posture of our core telecom network through innovative design, testing, implementation, and defense of network security solutions across multi-vendor environments. Key Responsibilities: + Research and proactively identify network vulnerabilities and security flaws across diverse network equipment vendors including Arista, Nokia, Ericsson, Cisco, Juniper, Palo Alto, Fortinet, and UfiSpace. + Architect and design security hardening mechanisms for network elements, to enforce best-in-class routing security, OAM segmentation, supply chain security, and network compartmentalization. + Collaborate closely with router and firewall software vendors to create standardized security designs and features that can be shared across multiple platforms. + Implement and enforce core network security controls, policies, and standards to reduce cyber risks and enhance the security posture of the telecom network. + Lead ideation, testing, proof of concept, and support for cybersecurity projects impacting the core telecom network. + Analyze complex security issues and develop engineering solutions to mitigate risk. + Evaluate hardware and software solutions for network security + Develop and maintain policies and procedures to minimize network intrusions, vulnerabilities and emerging cybersecurity threats. + Monitor network security events and analyze traffic using security tools to detect anomalies and potential threats in real-time. + Support incident response activities by investigating, containing, and remediating network security incidents affecting core telecom infrastructure. + Collaborate with the Security Operations Center (SOC) and incident response teams to develop detection rules, alerts, and playbooks for network-based threats. + Participate in threat hunting and vulnerability assessment exercises focused on network environments and routing infrastructure. + Develop automation scripts and tools to automate security monitoring and alerting. Education: + Bachelor’s degree or higher in Computer Science, Engineering, Cybersecurity, Information Technology, Mathematics, or related field from an accredited university. Experience: + 5+ years of progressive experience in network security with a focus on large-scale ISP or telecom networks. + Strong expertise in IP routing protocols: MPLS, BGP, MP-BGP, BGP-LU, BGP-UC, EVPN, Static Routing, OSPF, ISIS, RSVP, Multicast, VLAN, RIP, FIB, L2/L3 VPNs. + Proficient with switching technologies: LAN switching, VTP, STP, RPVST+, Inter-VLAN routing, Multi-layer switching, EtherChannels, Transparent Bridging. + Deep knowledge of networking technologies including TCP/UDP, VXLAN, VPCs, NAT, DNS, QoS, CoS, BGP, VPLS/VPWS, Ethernet OAM, FlowSpec, DDoS mitigation, VRFs, TACACS, RADIUS, SSH, TLS, IPSec, gNMI, SNMP, Telemetry, certificate management, and cryptographic key distribution. + Experience with network security controls such as firewalls (Palo Alto, Juniper SRX, Fortinet), ACLs, access control, and router protection techniques. + Multivendor platform experience including Cisco, Juniper, Arista, Ciena SAOS/NOS, RAD/RADview, UfiSpace, and DriveNets NOS. + Scripting and automation proficiency using Python for network testing, configuration automation, and security monitoring. + Proficient with Linux operating systems and command-line tools. **Supervisory:** No. Our Lead Cybersecurity earns between $128,400.00-$192,600.00 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- AT&T is leading the way to the future – for customers, businesses, and the industry. We're developing new technologies to make it easier for our customers to stay connected to their world. Together, we’ve built a premier integrated communications and entertainment company and an amazing place to work and grow. Team up with industry innovators every time you walk into work, creating the world you always imagined. Ready to #transformdigital with us? **Apply now!** **Weekly Hours:** 40 **Time Type:** Regular **Location:** Charlotte, North Carolina **Salary Range:** $128,400.00 - $192,600.00 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. AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status