Lead Sr. Network Operations Center (NOC) Engineer (Juniper Routing)
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
Bachelor’s degree in computer science, Engineering, Information Systems, or a related discipline, or equivalent practical experience.
B.E./B.Tech in Computer Science, Information Technology, Electronics and Communication Engineering preferred; MBA or M.Tech in a technical or management discipline is a plus.
Minimum 8 years of experience in enterprise network engineering or network operations, supporting large-scale, mission-critical environments, including at least two years of project or program management experience.
Expert-level knowledge of Juniper 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.
Strong understanding of network deployment, performance monitoring, and advanced troubleshooting across complex infrastructures.
Experience managing technology projects, preferably within corporate or Financial Services environments.
Demonstrated ability to lead cross-functional teams, manage risks and dependencies, and communicate effectively with stakeholders at all organizational levels.
Familiarity with disaster recovery strategies and their application within network operations.
Proficiency in project management tools and methodologies, including Agile and Waterfall.
Required Certifications
- Cisco CCNP (or equivalent)
Preferred Certifications
- JNCP certified Preferred
- CCIE (Routing & Switching, Enterprise, or Data Center)
- JNCIP/JNCIE
- PCNSE (Palo Alto)
- F5 Certified Administrator or Engineer
- AWS Advanced Networking
Special Requirements
- Must participate in 24x7 Tier 3 escalation rotation.
- May assist in after-hours change execution and major event coverage.
Special Factors
Sponsorship
Vanguard is not offering visa sponsorship for this position.About Vanguard
At Vanguard, we don't just have a mission—we're on a mission.
To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.
How We Work
Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.