L2 Network Engineer

Cynosure Corporate Solutions; Chennai District; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Cynosure Corporate Solutions is seeking an experienced Network Engineer for full-time role in Chennai. You will manage and troubleshoot enterprise LAN/WAN, VLAN, SDA, and wireless infrastructures, supporting security hardening, AD integrations, and vendor coordination.

The candidate should have 5+ years in enterprise networking, relevant Aruba/Cisco certifications, and strong communication skills to work with SOC and project teams.

Qualifications

• Diploma or degree in CS/EC/IT or related field.
• 5+ years of enterprise networking and NOC experience.
• Strong hands-on VLAN, SDA, and LAN/WAN administration.

Responsibilities

• Manage and administer LAN, WAN, VLAN, SDA, wireless networks.
• Monitor and resolve critical issues in enterprise network infrastructure.
• Configure switches, access points, and onboarding processes.
• Manage AD integrations and user access controls.
• Troubleshoot Aruba WLC, SSID, and wireless connectivity.
• Troubleshoot routing with BGP, ISIS, LISP, and VRF.
• Configure firewall policies and coordinate with vendors.
• Coordinate hardware replacements and advanced troubleshooting with OEMs.
• Support audits, cybersecurity hardening, and compliance tasks.
• Participate in daily operations meetings and provide status updates.
• Support telepresence and video conferencing infrastructure.
• Collaborate with SOC teams on network projects.

Skills

Enterprise networking

NOC operations

VLAN administration

SD Access

LAN/WAN administration

Aruba certification

Aruba ClearPass

Cisco ISE

Firewall management

Active Directory integration

BGP ISIS LISP VRF

ITIL Change management

Communication & coordination

Education

Diploma or Degree in CS/EC/IT

Tools

Aruba ClearPass

Cisco ISE

Firewall management tools

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 administer LAN, WAN, VLAN, SD Access, Wireless, ClearPass, and ISE environments
• Monitor enterprise network infrastructure and provide immediate resolution for critical issues
• Perform troubleshooting across uplink, port, endpoint, IT, and OT network environments
• Handle onboarding and configuration of switches and access points
• Manage user authentication, Active Directory integrations, and access control activities
• Troubleshoot Aruba WLC, SSID connectivity, and wireless-related issues
• Perform routing-level troubleshooting involving BGP, ISIS, LISP, and VRF
• Configure and troubleshoot firewall policies and coordinate with firewall vendors
• Manage firmware upgrades, patches, backups, and change management activities
• Coordinate with OEM vendors for hardware replacement and advanced troubleshooting
• Support audits, cybersecurity hardening, and compliance activities
• Participate in daily operational meetings and provide project/network status updates
• Support telepresence and video conferencing infrastructure operations
• Coordinate with SOC teams and support network-related project implementations

Required Skills & Qualifications

• Diploma or Degree in Computer Science, Electronics, IT, or related field
• 5+ years of experience in enterprise networking and NOC operations
• Strong hands-on experience in VLAN, SD Access (SDA), LAN/WAN administration
• Aruba certification or networking certification from reputed organizations preferred
• Experience with Aruba ClearPass, Cisco ISE, Aruba WLC, and wireless environments
• Strong troubleshooting skills in routing and switching technologies
• Good understanding of firewall management and network security
• Experience in Active Directory integration and user access management
• Knowledge of BGP, ISIS, LISP, VRF, and enterprise routing concepts
• Familiarity with ITIL/change management processes
• Strong communication and coordination skills

Preferred Skills

• Knowledge of shell scripting or automation tools
• Exposure to cybersecurity hardening practices
• Experience supporting IT & OT network environments
• Experience in large enterprise or manufacturing environments