Network Engineer, Specialist

Lead Sr. Network Operations Center (NOC) Engineer (Campus Networking - Cisco ISE/Aruba Wireless)

Position Summary

The Senior-Level NOC Engineer (Tier
3) functions as the highest technical escalation point within the global Network Operations Center. This role provides advanced troubleshooting, architecture-level insight, and deep subject matter expertise across complex, multi-vendor network infrastructures. Tier 3 support engineers lead root-cause analysis, oversee major incidents, influence network design standards, and partner with engineering teams to drive stability, scalability, and operational excellence.

Key Responsibilities

* Advanced Incident & Problem Management

* Acts as the final escalation point for all high-severity incidents, providing advanced packet analysis, protocol decoding, and cross-platform correlation.

* Performs deep-dive RCA, producing engineering-quality post-incident documentation and recommending long-term corrective actions.

* Leads network recovery efforts during outages involving routing instability, security events, hardware failures, or cloud connectivity issues.

Architecture-Level Network Troubleshooting Expertise

* Expert proficiency with Cisco NAC Solutions/Cisco Campus Networking, and Aruba Wireless services with the ability to interpret and troubleshoot complex multi-tier architectures.

* Strong knowledge of Campus Networking automation, API-driven provisioning, and lifecycle management in large-scale environments, including experience with IAC pipelines.

* Governs enterprise campus network architectures, including wired access, wireless LAN (WLAN), and edge connectivity designs.

* Enforces standards for secure user and device onboarding, guest access, BYOD, IoT connectivity, and Captive Portal authentication, across campus environments

* Proactively validates and enforces security architectures and best practices

* Defines and governs Zero Trust access architectures using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA), enabling secure user‑to‑application connectivity without traditional network‑based trust models.

* Identifies opportunities for platform monitoring, observability, and alerting.

Tools, Automation & Visibility

* Mastery of packet analysis tools:
Bluecat, Solarwinds, APCON, Wireshark, netflow/sflow platforms.

* Develops automation scripts for configuration validation, monitoring, and incident response workflows.

* Evaluates and integrates new operational tools and observability platforms.

Cross-Functional Leadership

* Partners with Network Engineering to validate new designs, perform pre-deployment testing, and influence standards.

* Mentors junior and mid-level NOC engineers, providing technical coaching, lab guidance, and training material.

* Engages directly with vendors for escalated TAC cases, hardware escalations, and architectural reviews.

Qualifications and Skills

* Minimum 8 years of experience in network engineering or IT infrastructure, including at least two years of project or program management experience.

* B.E./B.Tech in Computer Science, Information Technology, Electronics and Communication Engineering, or a related field.

MBA/M.Tech in a technical or management discipline is preferred.

Bachelor's degree in Computer Science, Engineering, Information Systems, or equivalent practical experience is acceptable.

* 8+ years of enterprise network operations or engineering experience, supporting large-scale, mission-critical environments.

* Experience managing technology projects in a corporate or Financial Services environment is preferred.

* Strong understanding of network deployment, performance monitoring, and technical troubleshooting in enterprise infrastructures.

* Expert-level knowledge of Cisco Campus Architecture, including Network Access Control (NAC) design, implementation, and operations.

* Extensive hands-on experience with enterprise networking and security platforms, including:

Cisco, Juniper, Brocade, Palo Alto, Aruba, and F5 ecosystems.

* Ability to lead cross-functional project teams, manage risks and dependencies, and communicate effectively with stakeholders at all organizational levels.

* Proven capability to lead major…