Tiruvallur, Chennai, Tamil Nadu Sr administrator (support & operations) Jobs – 86 Open Jobs Today

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Analyst (Support & Operations)
HCLTech —Chennai, Tamil Nadu
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HCLTech —Chennai, Tamil Nadu
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Senior Administrator - Avaya Unified Communications
HCLTech —Chennai, Tamil Nadu
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HCLTech —Chennai, Tamil Nadu
- Computer science
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SolvEdge —Chennai, Tamil Nadu
- Full-time
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- Marketing
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Senior Administrator - Security Investigations, SIEM
HCLTech —Chennai, Tamil Nadu
- Azure
- Windows
- AWS
Senior Administrator - English, Arabic, Microsoft Windows
HCLTech —Chennai, Tamil Nadu
- Customer service
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Sr Technical Lead (Support & Operations)
HCLTech —Chennai, Tamil Nadu
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Accenture —Chennai, Tamil Nadu
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TransPerfect —Chennai, Tamil Nadu
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Quick apply
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Guidehouse India Pvt Ltd —Chennai, Tamil Nadu
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Guidehouse —Chennai, Tamil Nadu
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Genesys —Chennai, Tamil Nadu
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SME - IAM Operations
HCLTech —Sholinganallur, Chennai, Tamil Nadu
- Azure
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Senior Administrator - Program & Project Management
HCLTech —Chennai, Tamil Nadu
- PMP
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Exasol AG —Chennai, Tamil Nadu
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Senior Administrator - Cisco Application Centric Infrastructure (ACI)
HCLTech —Chennai, Tamil Nadu
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- Bachelor's degree
Project Assistant
Temenos —Perungudi, Chennai, Tamil Nadu
- Full-time
- Microsoft Powerpoint
- Master's degree
- Project management
- Paid time off

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Sr Administrator (Support & Operations)

HCLTech -
Chennai, Tamil Nadu

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Job details

Fresher
8 days ago

Qualifications

Cisco ISE
Software deployment
OSPF
LAN
PRTG
Firewall
Presentation skills
BGP
Routing protocols
Computer networking
IPsec
Solarwinds
MPLS
ServiceNow
EIGRP
Network engineering
Communication skills
Network security
VPN

Full job description

Chennai, Tamil Nadu
Job Summary

We are seeking a highly skilled and experienced L2 Network Engineer to support, design, implement, and optimize enterprise network infrastructure across LAN, WAN, Cisco Wireless, and SD-WAN environments. The ideal candidate will serve as the highest level of technical escalation for network-related incidents and lead complex network transformation initiatives. A strong technical background combined with excellent communication, stakeholder management, and customer-facing skills is mandatory. The candidate should be capable of leading technical discussions, presenting solutions, managing critical incidents, and collaborating effectively with global teams and senior leadership.

To offer advanced technical support , troubleshooting and doing root cause analysis to ensure positive customer feedback.

Key Responsibilities

Network Operations & Support Provide L3 support for enterprise LAN, WAN, Wireless, and SD-WAN environments. Act as the final technical escalation point for complex network incidents. Troubleshoot and resolve high-priority network outages within SLA timelines. Perform detailed Root Cause Analysis (RCA) and recommend permanent fixes. Ensure network availability, stability, performance, and security across global environments. Support 24x7 operations and participate in on-call rotations when required. Change Management & Network Implementations Plan, review, implement, and validate complex network changes. Lead network migration, upgrade, refresh, and transformation activities. Conduct impact assessments and risk analysis for planned changes. Ensure successful execution of changes with minimal business impact. Prepare implementation plans, rollback procedures, and change documentation. Critical Incident & Bridge Management Lead and drive critical network incident bridge calls (P1/P2 incidents). Coordinate with internal teams, vendors, service providers, and customers during major outages. Provide regular technical updates to leadership and stakeholders. Drive restoration activities and ensure timely service recovery. Own post-incident reviews and corrective action plans.

1. To adhere to quality standards, regulatory requirements and company policies.
2. To provide support for complex incidents, escalated by analysts, perform root cause analysis, and implement solutions to resolve technical & security issues.
3. To work on value adding activities such Knowledge base update & management, training freshers, coaching analyst.
4. To resolve complex tickets within agreed SLAs and collaborate with other support teams to ensure seamless operations & security posture.
5. To ensure positive customer experience and CSAT through First Call Resolution , minimum rejected resolutions / reopen Cases and mitigating security threats.

Skill Requirements

Mandatory Technical Skills Data LAN Cisco Catalyst and Nexus Switches Layer 2 & Layer 3 Switching VLANs, Trunking STP, RSTP, MSTP EtherChannel / LACP HSRP, VRRP, GLBP QoS Network Segmentation Campus Network Architecture WAN Technologies MPLS Internet WAN Metro Ethernet IPSEC VPN Site-to-Site VPN GRE Tunnels DMVPN WAN Performance Optimization Carrier Circuit Troubleshooting Routing Protocols BGP OSPF EIGRP Static Routing Route Redistribution Policy-Based Routing (PBR) Multicast Fundamentals Cisco Wireless Cisco Wireless LAN Controllers (9800 Series Preferred) Cisco Access Points Wireless Design and Deployment RF Optimization and Troubleshooting Wireless Roaming WLAN Security 802.1X Authentication Cisco ISE Integration Guest Wireless Solutions Performance Analysis and Troubleshooting.

Other Requirements

Mandatory Technical Skills Data LAN Cisco Catalyst and Nexus Switches Layer 2 & Layer 3 Switching VLANs, Trunking STP, RSTP, MSTP EtherChannel / LACP HSRP, VRRP, GLBP QoS Network Segmentation Campus Network Architecture WAN Technologies MPLS Internet WAN Metro Ethernet IPSEC VPN Site-to-Site VPN GRE Tunnels DMVPN WAN Performance Optimization Carrier Circuit Troubleshooting Routing Protocols BGP OSPF EIGRP Static Routing Route Redistribution Policy-Based Routing (PBR) Multicast Fundamentals Cisco Wireless Cisco Wireless LAN Controllers (9800 Series Preferred) Cisco Access Points Wireless Design and Deployment RF Optimization and Troubleshooting Wireless Roaming WLAN Security 802.1X Authentication Cisco ISE Integration Guest Wireless Solutions Performance Analysis and Troubleshooting Cisco SD-WAN (Mandatory) Strong hands-on experience with: Cisco Viptela SD-WAN Architecture vManage vSmart vBond cEdge / vEdge Devices Overlay and Underlay Architecture Application Aware Routing SLA-Based Policies Traffic Engineering Segmentation Direct Internet Access (DIA) Cloud Connectivity Zero Touch Provisioning (ZTP) SD-WAN Deployment, Migration, and Troubleshooting Network Security Knowledge ACL Management Cisco ISE Network Segmentation IPSEC VPN Secure Network Design Basic Firewall Troubleshooting Network Hardening Best Practices Monitoring & Management Tools Experience with one or more: Cisco Catalyst Center / DNA Center SolarWinds ThousandEyes PRTG Wireshark Cisco Prime Infrastructure ServiceNow

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