L3 Infrastructure Engineer (Lead / SME)

Job Description 2: L3 Infrastructure Engineer (Lead / SME)

Experience: Minimum 7 years in complex enterprise IT infrastructure

Education: BE / B.Tech / MCA / M.Sc in relevant disciplines

Core Qualifications & Certifications

• Network Track: Advanced CCNP / CCIE or equivalent certifications. Deep expertise in complex WAN/LAN architectures, enterprise routing, switching, and security solutions.
• Systems Track: Relevant enterprise server/virtualization certifications with advanced hands-on expertise in complex compute environments.
• Technical Leadership: Proven track record in complex incident resolution, infrastructure planning, andRoot Cause Analysis (RCA).

Key Responsibilities

• Act as the technical escalation lead during the 16x6 window for high-severity incidents.
• Drive end-to-end troubleshooting, resolution, and comprehensive RCA for critical production outages.
• Plan and oversee complex infrastructure upgrades, maintenance windows, and DR testing/failovers.
• Ensure all infrastructure designs and operational practices strictly adhere to Cisco operational and security standards.
• Mentor L2 engineers and improve operational efficiency through knowledge sharing and process optimization.

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