L3 Network Engineer

Company : Cynosure Corporate Solutions

Job Type : Full Time

Chennai, India

Number of Applicants

000+

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Job Description - L3 Network Engineer

Key Responsibilities:

Manage and maintain enterprise network infrastructure operations

Lead and coordinate L1 and L2 engineers for day-to-day operational activities

Implement and support wireless infrastructure solutions (Aruba, Cisco, Ruckus)

Handle advanced troubleshooting for routing, switching, wireless, and firewall-related issues

Manage routing protocols including BGP, OSPF, EIGRP, and HSRP

Configure and troubleshoot VLAN, VRF, VXLAN, VPN, VPC, VDC, and Port Channels

Support Cisco SDA, DNA Center, Cisco Prime, NCM, and IPAM environments

Manage Cisco ISE, AD integration, wired/wireless authentication, and guest portal configurations

Configure and troubleshoot Aruba ClearPass and OnGuard solutions

Perform IOS upgrades, firmware updates, and change management activities

Ensure compliance with ITIL processes including incident, change, and problem management

Prepare weekly/monthly operational reports, SLA reports, inventory reports, and firewall reports

Conduct firewall rule reviews, security baseline reviews, and support information security initiatives

Coordinate with internal teams and vendors for critical network issues and escalations

Ensure uptime and operational stability across factory network environments

Required Skills & Qualifications:

7+ years of experience in enterprise networking and infrastructure operations

CCNP Certification is mandatory

CCNA Certification required

Strong hands-on experience in Cisco routing, switching, and security technologies

Experience with Aruba Wi-Fi, ClearPass, and Cisco ISE

Strong knowledge of BGP, OSPF, EIGRP, HSRP, VLAN, VRF, VXLAN, VPN technologies

Experience with Cisco SDA, DNA Center, Cisco Prime, and enterprise wireless infrastructure

Good understanding of ITIL processes and NOC operations

Strong troubleshooting and escalation handling capabilities

Experience in manufacturing industry environments will be an added advantage

Strong leadership, coordination, and reporting skills

Preferred Skills:

Experience with Fortinet firewall technologies

Exposure to enterprise cybersecurity practices

Knowledge of automation and scripting tools

Experience handling large-scale enterprise/manufacturing network environments

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L3 Network Engineer

Job Description - L3 Network Engineer

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