L3 Network Engineer

Cynosure Corporate Solutions; Chennai District; On-site; INR 1,800,000 - 3,200,000; Full time

Job summary

Cynosure Corporate Solutions is seeking an experienced Network Engineer to oversee enterprise networking and infrastructure operations in Chennai. You will lead L1/L2 engineers, manage wired and wireless networks, and drive troubleshooting and optimization across routing, switching, and security domains.

The role requires CCNP and CCNA, strong Cisco skills, and experience with Aruba ClearPass and Cisco ISE, SDA, DNA Center, Prime, NCM, IPAM.

Qualifications

• 7+ years of enterprise networking and infrastructure operations experience.
• CCNP Certification is mandatory; CCNA required.
• Strong hands-on Cisco routing, switching, and security know-how.
• Experience with Aruba ClearPass and Cisco ISE is essential.
• Familiarity with Cisco SDA, DNA Center, Prime, NCM, and IPAM environments.

Responsibilities

• Manage and maintain enterprise network infrastructure operations.
• Lead and coordinate L1 and L2 engineers for day-to-day activities.
• Implement and support wireless infrastructure solutions (Aruba, Cisco, Ruckus).
• Handle advanced troubleshooting for routing, switching, wireless, and firewall issues.
• Manage routing protocols: BGP, OSPF, EIGRP, HSRP.
• Configure VLAN, VRF, VXLAN, VPN, VPC, VDC, Port Channels.

Skills

CCNP Certification

CCNA Certification

Cisco routing & switching

Network security basics

ITIL v4 knowledge

Leadership & reporting

Tools

Aruba ClearPass

Cisco ISE

SDA / DNA Center

Prime / NCM / IPAM

Job description

Cynosure Corporate Solutions | Full time

Cynosure Corporate Solutions is a human capital services company. Our focus is to provide Executive Search, Recruitment, Training, Temporary Staffing services, Statutory Compliance's, and other HR aligned services. We understand the business goals of our clients and their need to align human resources to these goals. We are committed to provide high quality manpower in accordance to global standards and their requirements. Our candidates stand testimony to our professional competency.

We work with clients in IT/ITES, Manufacturing, Automobile, Health, Telecom, Media.

Job Description

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