Senior Network Site Reliability Engineer

About the Company

If you are interested, please share your updated resume via WhatsApp at +91 9514432939 or email it to ajai_t@hcltech.com.

About the Role

We are seeking a highly experienced Senior Network Site Reliability Engineer (SRE) to join our global network operations team. This role is critical to ensuring the reliability, scalability, and performance of enterprise and cloud-scale network infrastructure. The ideal candidate will lead incident response, troubleshoot complex network issues, drive automation initiatives, and provide strong technical leadership to deliver world-class network services.

Responsibilities

• Network Operations & Incident Management

• Lead and own critical network incidents, managing major outages and ensuring rapid service restoration.

• Provide expert guidance during high-pressure production incidents.

• Participate in 24/7 shift-based operations to ensure continuous availability of critical network services.

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• Advanced Troubleshooting

• Diagnose and resolve complex issues across routing, switching, firewalling, and wireless domains.

• Perform deep troubleshooting involving overlay and underlay network architectures.

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• Technical Leadership

• Set technical direction and best practices for network reliability and operations.

• Mentor junior engineers and foster a culture of operational excellence and continuous improvement.

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• Multi-Vendor Network Engineering

• Operate across complex, multi-vendor environments including:

• Arista, Cisco, Cumulus

• Spectrum Ethernet, InfiniBand

• Palo Alto, Check Point

• Mist, Aruba

• A10, NetScaler, F5

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• Security & Network Segmentation

• Support network segmentation, policy enforcement, and secure network designs.

• Implement and support VPN solutions such as GlobalProtect and AnyConnect.

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• Automation & Observability

• Enhance network monitoring and automation using tools such as:

• Grafana, BigPanda, ServiceNow

• ITMP, Syslog, Splunk

• Salt, Ansible, Prometheus

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• Drive automation to improve reliability, scalability, and operational efficiency.

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• Innovation & Strategic Initiatives

• Collaborate on wireless network design initiatives.

• Support AI cluster deployments and next-generation network architectures.

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Qualifications

• Minimum 10+ years of hands-on experience in network engineering and operations.

• Deep expertise in routing, switching, firewalling, and wireless technologies across multiple vendors.

• Strong troubleshooting skills with solid understanding of overlay and underlay networks.

• Proficiency in Linux / Unix environments.

• Hands-on experience with automation and monitoring platforms.

• Proven ability to work independently, set technical direction, and mentor team members.

Required Skills

• Experience with InfiniBand networks and AI cluster deployments.

• Familiarity with network asset management tools such as Nautobot.

• Wireless design and implementation experience with Cisco, Mist, and Aruba solutions.

Preferred Skills

• Strong ownership mindset and problem-solving skills.

• Ability to remain calm and effective during high-severity incidents.

• Excellent communication and collaboration skills.

• Passion for automation, reliability engineering, and continuous improvement.