Role Overview:The Network Administrator will be responsible for the design, configuration, and maintenance of LAN/WAN infrastructure, with a strong focus on Cisco and Arista technologies. This role involves deploying and managing SD-WAN solutions, supporting Layer 2 and Layer 3 networks, and ensuring robust network performance and security across wired and wireless environments.
Key Responsibilities:- Design, configure, and maintain LAN/WAN infrastructure using Cisco and Arista switches and routers.
- Deploy and manage SD-WAN solutions (e.g., Cisco Viptela, Meraki, Fortinet, or Versa).
- Support SD-WAN routing overlays and underlays.
- Design and implement Layer 2 networks for enterprise and data center environments.
- Troubleshoot broadcast storms, loop issues, and port flapping.
- Perform switch upgrades and firmware management.
- Configure switch stacks and chassis-based systems.
- Manage switch ACLs and security policies.
- Monitor switch performance and port utilization.
- Design, implement, and support Layer 3 wireless networks, including access points and controllers.
- Configure and troubleshoot routing protocols in multi-vendor environments.
- Manage Internet edge routing and peering with ISPs.
- Implement route filtering and prefix lists.
- Diagnose routing loops, black holes, and asymmetric routing issues.
- Monitor network performance and troubleshoot connectivity issues across wired and wireless environments.
- Collaborate with security teams to ensure network compliance and implement firewall policies.
- Perform network upgrades, patching, and lifecycle management of hardware and software.
- Maintain detailed documentation of network configurations, diagrams, and operational procedures.
- Participate in on-call rotation and respond to network incidents and outages.
- Work with vendors and service providers to resolve issues and optimize performance.
Required Skills:- Strong experience with Cisco IOS/XE, Arista EOS, and network automation tools.
- Hands-on experience with SD-WAN technologies and centralized management platforms.
- Proficiency in wireless networking (802.11 standards, RF fundamentals, site surveys).
- Solid understanding of routing protocols (OSPF, BGP, EIGRP) and Layer 2 technologies (VLANs, STP).
- Familiarity with network monitoring tools (e.g., NetScout, Cisco DNAC, NetFlow, SNMP).
- Experience with network security concepts and integration with firewalls and NAC.
- Certifications such as CCNP, Arista ACE, CWNA, or SD-WAN vendor certifications.
- Experience with scripting and automation (Python, Ansible).
- Strong analytical and problem-solving skills.
- Excellent communication and documentation abilities.
- Experience with integration with firewalls, load balancers, and cloud networking.
- Experience with NetFlow, SNMP, and Syslog for monitoring.
Qualifications:- 4-6 years of experience.
- Relevant certifications such as CCNP, Arista ACE, CWNA, or SD-WAN vendor certifications.
Preferred Skills:- Knowledge of cloud networking (AWS, Azure, GCP) is a plus.
