NOC Technical Lead L3

Larsen & Toubro; Chennai District; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Larsen & Toubro invites an experienced infrastructure leader to oversee 24x7 COLO, ISP, AI GPU Cloud, and Data Center operations. You will drive incident resolution, RCA, and continuous service improvements across networking, compute, storage, and security domains.

You will design scalable architectures, implement automation, and mentor NOC teams while ensuring ITIL-aligned governance and strong collaboration with vendors and internal stakeholders.

Qualifications

• BE/B-Tech or equivalent with Computer Science or Electronics & Communication.
• Experience in Enterprise Network Operations, Data Center Operations, Cloud Infrastructure, or Managed Services environments.
• ITIL Foundation/Intermediate certification is desirable.

Responsibilities

• Provide technical leadership for round-the-clock COLO, ISP, AI GPU Cloud and Data Center infrastructure operations.
• Lead the resolution of critical incidents and escalations with emphasis on RCA and permanent fixes.
• Develop automation, orchestration, and tooling to reduce manual effort and improve reliability.

Skills

Incident management

Root Cause Analysis

Automation

Data Center networking

Cloud infrastructure

Kubernetes

Education

BE/B-Tech in CS or E&C

Tools

SolarWinds

Prometheus

Grafana

Splunk/ELK

Checkmk

Job description

Job Description:

Job Purpose

Provide Level-3 technical leadership and expert support for COLO, ISP connectivity, Cloud, and AI GPU Data Center infrastructure by leading the resolution of complex incidents, driving root cause analysis, automation, and continuous service improvements. Ensure the availability, performance, scalability, and security of mission-critical infrastructure through collaboration with engineering, vendors, and operations teams while adhering to ITIL processes and SLA commitments.

Roles & Responsibilities

• Provide technical leadership for the 24×7 operation of COLO, ISP, AI GPU Cloud, and Data Center infrastructure.
• Lead the resolution of critical (P1/P2) incidents, major service outages, and complex technical escalations.
• Perform advanced troubleshooting and Root Cause Analysis (RCA) across network, compute, storage, cloud, virtualization, and security infrastructure.
• Own Problem Management activities by identifying recurring issues and implementing permanent corrective and preventive actions.
• Design, optimize, and continuously improve Data Center, cloud, and monitoring architectures to enhance service availability and operational efficiency.
• Develop and implement automation, orchestration, and operational tooling to reduce manual effort and improve service reliability.
• Define and maintain operational standards, monitoring strategies, alert thresholds, SOPs, runbooks, and knowledge base documentation.
• Review and approve technical procedures, operational documentation, and standard operating practices & Support Compliance Audits.
• Drive capacity planning, performance optimization, scalability, and high-availability initiatives for Data Center and AI GPU infrastructure.
• Provide technical governance for enterprise networking, cloud connectivity, security infrastructure, and observability platforms.
• Collaborate with Infrastructure, Cloud, Security, Platform Engineering, Application, Facilities, and Vendor teams to resolve complex technical issues.
• Lead technical support during planned maintenance, software upgrades, migrations, disaster recovery, and business continuity exercises.
• Participate in architecture reviews, technology evaluations, and infrastructure lifecycle planning.
• Ensure compliance with security policies, governance standards, operational procedures, and SLA/OLA commitments.
• Lead operational readiness reviews for new services, infrastructure deployments, and production transitions.
• Mentor and provide technical guidance to NOC L1/L2 engineers through knowledge transfer, technical reviews, and operational coaching.
• Provide expert support for AI GPU clusters, InfiniBand/Ethernet fabrics, Kubernetes platforms, distributed storage, and high-performance networking.
• Optimize monitoring, alert correlation, and observability across GPU, compute, storage, and network infrastructure using enterprise monitoring platforms.
• Lead service restoration during large-scale infrastructure failures and coordinate technical bridge calls with OEMs, cloud providers, and engineering teams.
• Analyze infrastructure performance trends and recommend architecture enhancements to improve scalability, resilience, and operational efficiency.

Experience & Educational Requirement

BE/B-Tech or equivalent with Computer Science or Electronics & Communication

Relevant Experience

• 8–15 years of experience in Enterprise Network Operations, Data Center Operations, Cloud Infrastructure, or Managed Services environments.
• Expert knowledge of Data Center networking, including LAN/WAN, TCP/IP, MPLS, EVPN-VXLAN, Spine-Leaf architectures, BGP, OSPF, IS-IS, VLANs, STP/MSTP, VRRP/HSRP, QoS, and High Availability.
• Hands-on experience with enterprise networking platforms such as Cisco, Juniper, Arista, NVIDIA, DELL and Data Center switching and routing technologies.
• Strong experience supporting Firewalls, VPNs, Load Balancers (F5 or equivalent), DNS, DHCP, NTP, SNMP, Syslog, and network security operations.
• Extensive experience in COLO and Cloud Data Center environments, including Azure, AWS, and hybrid cloud networking.
• Strong knowledge of Linux/Windows administration, virtualization platforms, storage, backup, and enterprise infrastructure services.
• Experience with enterprise Network Monitoring, Observability, and AIOps platforms, including SolarWinds, Prometheus, Grafana, Splunk/ELK, Checkmk, NetQ/UFM, or equivalent tools.
• Experience with ITSM platforms such as Zoho, ServiceNow, BMC Remedy, or Jira Service Management, with a strong understanding of Incident, Problem, Change, and Major Incident Management aligned to ITIL.
• Experience with automation and Infrastructure as Code (IaC) using Python, PowerShell, Ansible, Terraform, or equivalent technologies.
• Knowledge of Kubernetes, container platforms, and cloud-native infrastructure operations is highly desirable.
• Strong understanding of Industry security standards like ISO 27001, PCI-DSS, SOC-1&2
• Strong analytical, Root Cause Analysis (RCA), performance optimization, and capacity planning skills.
• Proven leadership, stakeholder management, technical mentoring, and cross-functional collaboration skills.
• ITIL Foundation/Intermediate certification.
• CCNP Enterprise or CCIE (preferred).
• Cloud certifications such as Microsoft Azure Administrator/Architect, AWS SysOps Administrator/Solutions Architect, or equivalent.
• Vendor certifications from Juniper (JNCIP/JNCIE), Arista (ACE), Red Hat (RHCSA/RHCE), VMware (VCP), or equivalent is an added advantage.
• Experience supporting AI GPU clusters, NVIDIA InfiniBand/Ethernet fabrics, high-performance storage, and large-scale Kubernetes environments.
• Familiarity with GPU monitoring, fabric telemetry, distributed storage, and observability platforms used in AI/HPC environments.
• Experience in automation and operational optimization for hyperscale or AI Cloud Data Centers.

Requirements