L3 Senior Network Engineer

L3 Senior Network Engineer

Department: Managed Services / NOC

Job Location: Mumbai

Position Type: Permanent (Full-time)

Working Days Hours: Monday to Friday | 9:30 AM to 6:30 PM

Travel Required: No

About Company

Inniti Network Solutions LLP is headquartered in Thane, India (founded in 2015). Our vision is to be the premier network and information security services company designing digital-next, highly secure network solutions. Our mission is to eliminate enterprise network bottlenecks and build intelligent, secure networks that lay the foundation for modern digital transformation.

Role Summary

We are seeking a highly skilled L3 Senior Network Engineer to provide advanced operational support, technical leadership, and escalation management across enterprise network infrastructures. In this role, you will handle critical incidents, perform deep-dive troubleshooting, manage change and capacity requirements, and drive service improvements across hybrid, multi-vendor environments.

This position requires extensive hands-on expertise in enterprise routing, switching, data center networking, and software-defined networking-specifically with Cisco Viptela SD-WAN / Versa SD-WAN, Cisco SD-Access (DNAC), and Cisco Nexus platforms.

Key ResponsibilitiesIncident Escalation Management

• Act as the primary L3 technical escalation point for NOC L1 and L2 engineering teams on complex, business-critical network issues.
• Lead the rapid resolution of network incidents and service requests while strictly maintaining SLA compliance.
• Investigate advanced routing, switching, WAN, LAN, wireless, and data center incidents to ensure timely, sustainable fixes.
• Ownership of major incidents, emergency outages, and high-impact outages to minimize overall business disruption.
• Perform Root Cause Analysis (RCA) on recurring or critical incidents and execute long-term preventive/corrective actions.

Operations Technical Governance

• Deliver advanced support for global enterprise networks spanning branch, campus, data center, and WAN environments.
• Guide NOC L2 engineers on complex troubleshooting and configuration tasks.
• Perform lifecycle management, configuration adjustments, and administration in accordance with operational standards and security policies.
• Conduct strict Quality Assurance (QA) reviews on incident resolutions, system changes, and new configurations.

Performance Monitoring Capacity Optimization

• Analyze network health metrics, tracking bandwidth, latency, device health, and throughput bottlenecks.
• Execute capacity planning initiatives by evaluating current utilization rates and forecasting future infrastructure needs.
• Formulate strategic recommendations for network optimization, performance tuning, and operational resilience.

Change Management Continuous Improvement

• Play a central role in change management processes-conducting technical impact assessments, peer reviews, implementation, and post-change validation.
• Execute complex configuration changes following established enterprise best practices.
• Support network migration, expansion, hardware refresh, and technology upgrade projects in collaboration with cross-functional teams.
• Drive continuous service improvement (CSI) initiatives and optimize NOC operational workflows.

Collaboration Knowledge Sharing

• Partner with Network Architects, Security Teams, Engineering Leads, and third-party vendors to resolve systemic issues.
• Maintain accurate, up-to-date technical documentation, standard operating procedures (SOPs), runbooks, and knowledge base (KB) articles.
• Mentor, coach, and support skill development for L1 and L2 engineers to build overall team capability.
• Provide direct, clear communication to clients and stakeholders during critical incidents and change windows.

Skills RequirementsMandatory Technical Skills

• Routing Switching: Deep hands-on experience with L2/L3 enterprise and data center network operations (VLANs, STP, VTP, Data Center Zones, VRF/Virtual Routing, and cabling standards).
• Software-Defined Networking (SDN): Proven operational experience with Next-Gen SDN platforms, specifically Cisco Viptela SD-WAN (or Versa SD-WAN) and Cisco SD-Access (DNAC).
• Data Center Hardware: Direct hands-on experience configuring and operating Cisco Nexus and Cisco Catalyst switches.
• Managed Services: Background working within multi-vendor, hybrid enterprise managed service or NOC operations.
• Tools: Proficiency with enterprise fault management, performance monitoring, and capacity planning tools.

Preferred Added Advantage

• Experience with Data Center architecture and operations.
• Familiarity with network automation, orchestration, and API-driven configuration management.
• Exposure to modern network observability platforms.

Professional Functional Competencies

• Thorough understanding of ITIL frameworks (Incident, Problem, and Change Management).
• Familiarity with IT compliance and regulatory standards in enterprise environments.
• Exceptional analytical and diagnostic skills under high-pressure, critical outage conditions.
• Excellent verbal and written communication skills with strong stakeholder management capability.

Education Certifications

• Education: Bachelor s degree in Engineering (B.E./B.Tech) or any relevant graduation degree.
• Certifications (Preferred): Active CCNP Enterprise / Data Center, or CCIE (Enterprise / Routing Switching / Data Center).

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.