Network Administrator l3

Experience: 6+ Years
Qualification: B.E./B.Tech (CS/IT/ECE) / M.Sc. (IT/CS) / MCA
Certification: CCNP or Equivalent OEM Certification (Mandatory)
Location: Delhi NCR
Domain: Enterprise Networking | Data Centre Networking | SDN/SDA Infrastructure Support

Location: Delhi NCR
Position: Network Administrator L3
Employment Type: Full-Time

About Coforge

Coforge is a global digital services and solutions provider that enables organizations to accelerate their digital transformation journey through innovative technology solutions, deep domain expertise, and a strong focus on delivering business value and operational excellence.

Job Summary

We are seeking an experienced Network Administrator – L3 to manage, maintain, and optimize enterprise network infrastructure across LAN, Data Centre, and Software-Defined Network environments. The ideal candidate will possess strong expertise in routing, switching, firewall management, network troubleshooting, and SDN/SDA technologies, along with a valid CCNP or equivalent OEM certification.

Key Responsibilities

• Design, implement, administer, and support enterprise LAN, WAN, and Data Centre network infrastructure.
• Manage and troubleshoot core network devices including routers, switches, firewalls, and wireless controllers.
• Perform advanced troubleshooting for network performance, connectivity, and security-related issues.
• Configure and support routing and switching protocols, VLANs, network segmentation, and high-availability solutions.
• Monitor network performance, capacity, and availability to ensure optimal service delivery.
• Manage and support Software Defined Networking (SDN) and Software Defined Access (SDA) environments.
• Perform network upgrades, patch management, and firmware updates with minimal service disruption.
• Collaborate with security, system administration, and application teams for infrastructure optimization.
• Analyze network incidents, conduct root cause analysis (RCA), and implement preventive measures.
• Ensure adherence to organizational security policies, compliance requirements, and industry best practices.
• Maintain technical documentation, network diagrams, SOPs, and operational procedures.
• Provide technical guidance and mentorship to L1/L2 support teams.

Educational Qualifications

Candidates must possess any of the following qualifications from a recognized University:

• B.E./B.Tech in Computer Science, Information Technology, or Electronics & Communication Engineering
• M.Sc. (Information Technology / Computer Science)
• MCA

Mandatory Certification

• Valid CCNP Certification or equivalent OEM certification in Enterprise Networking.

Experience Requirements

• Minimum 6 years of hands-on experience in:

• LAN Networking

• Data Centre Networking

• Core Routing and Switching

• Firewall Administration and Management

• Enterprise Network Operations

• Minimum 1 year of experience working in:

• Software Defined Networking (SDN)

• Software Defined Access (SDA) environments

Required Technical Skills

• Strong expertise in TCP/IP, VLANs, STP, HSRP, VRRP, DNS, DHCP, NAT, and MPLS.
• Hands-on experience with enterprise-grade routers, core switches, and firewalls.
• In-depth knowledge of routing protocols such as OSPF, BGP, EIGRP, and static routing.
• Experience in Data Centre networking technologies and architectures.
• Knowledge of SDN/SDA deployments and operations.
• Expertise in network monitoring, troubleshooting, and performance optimization.
• Familiarity with ITSM/ticketing tools and incident management processes.
• Understanding of network security principles and access control mechanisms.

Preferred Skills

• Experience with Cisco Catalyst Center (DNA Center), Cisco SD-Access, or equivalent SDN platforms.
• Exposure to Palo Alto, Fortinet, Check Point, or Cisco Firepower firewalls.
• Knowledge of network automation and scripting fundamentals.
• ITIL certification or exposure to ITIL processes will be an added advantage.

Desired Competencies

• Strong analytical and problem-solving skills.
• Excellent communication and stakeholder management abilities.
• Ability to manage critical incidents and work under pressure.
• Strong documentation and reporting skills.
• Ability to lead technical troubleshooting efforts and mentor junior engineers.