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. 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 incidents under pressure , providing clear communication and strong technical command during high‑impact events. Familiarity with disaster recovery strategies , including planning and implementation within network operations. Proficiency in project management tools and methodologies , including Agile and Waterfall , with the ability to apply appropriate frameworks based on project scope and complexity. Vanguard is not offering visa sponsorship for this position. #J-18808-Ljbffr