Senior Specialist, Cybersecurity – Network Security Testing, Routing – OSPF, BGP, Palo Alto, Firewall/TACACS+, RADIUS

AT&T

Network Security Specialist with 8+ years experience in large-scale networks at AT&T. Focused on automation, testing, and enhancing network security protocols with multi-vendor equipment.

Posted 6/20/2026full-timeHyderabad • 🇮🇳 IndiaSeniorWebsite

Tech Stack

Tools & technologies

AnsibleCyber SecurityPythonTCP/IP

About the role

Key responsibilities & impact

Analyze security issues in test and production networks and determine appropriate security solutions
Perform functional, integration, performance, and security testing on multi-vendor network solutions and network elements
Design, implement, and maintain automated test scripts and frameworks to enhance network security testing efficiency and coverage
Automate repetitive testing tasks to increase reliability and speed of test cycles
Integrate automated test suites into CI/CD pipelines for continuous validation of security controls and features
Develop and document test plans, results, and defects; collaborate with vendors, designers, and operations team to resolve issues
Contribute to continuous testing improvements in network development lifecycle
Monitor, troubleshoot, and optimize automated testing processes to ensure accuracy and reliability
Evaluate and introduce new automation tools and methodologies to improve testing processes

Requirements

What you’ll need

Minimum 8 years of experience with security in large scale networks
Strong knowledge of network fundamentals (TCP/IP, VLANs, subnetting)
Hands-on experience with routing protocols (BGP, IS-IS, OSPF, EIGRP, static routing), ACLs, AAA (TACACS, RADIUS)
Familiarity with Cisco, Juniper, or other major vendor routing equipment
Familiarity with Palo Alto, Juniper, Cisco, or other major vendor firewall equipment
Demonstrated experience in developing and maintaining automated test scripts for network security validation
Proficiency in network automation and scripting (Python, Ansible, shell scripts, etc.)
Experience integrating automated test cases into CI/CD pipelines
Experience with logging/monitoring tools (Syslog, SNMP, GNMI, SIEM)
Strong troubleshooting and documentation skills
Ability to analyze test automation results and troubleshoot automation failures
Knowledge of best practices in automated testing, including test data management and reporting
Experienced in implementing and managing TACACS+ and RADIUS based AAA (Authentication, Authorization, and Accounting) solutions across enterprise network environments.
Hands-on experience with Cisco ISE, Aruba ClearPass, FreeRADIUS, and multi-vendor network security environments.
Familiarity with applying Artificial Intelligence (AI) or Machine Learning (ML) techniques in cybersecurity contexts (e.g., anomaly detection, threat hunting, behavioral analytics, or risk scoring)
Experience leveraging AI-enabled tools (such as Copilot for Security, Darktrace, CrowdStrike Charlotte AI, or custom LLM integrations) to enhance detection, response, and automation workflows
Understanding of LLM safety, prompt engineering, or AI governance frameworks (e.g., NIST AI RMF, EU AI Act readiness) is a plus
Exposure to data science fundamentals relevant to security (pattern recognition, supervised vs. unsupervised learning, model validation)
Awareness of AI-driven risks (e.g., adversarial ML, data poisoning, model hallucination) and their mitigation within enterprise environments
Interest in leveraging GenAI for security operations, such as summarizing alerts, drafting reports, or automating incident triage.

Benefits

Comp & perks

health insurance
retirement plans
paid time off
flexible work arrangements

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

network securityautomated test scriptsnetwork automationPythonAnsibleBGPOSPFTACACS+RADIUSAI in cybersecurity

Soft Skills

troubleshootingdocumentationcollaborationanalysiscommunicationproblem-solvingcontinuous improvementattention to detailorganizational skillsadaptability