Network Engineer

Zensar Technologies

Early Applicant

5 months ago
Be among the first 50 applicants

Exp: 5-8 Years

Full time

Bengaluru / Bangalore, India

Job Description

Role - Network Engineer - L2

Experience: 5-8 YRS

Location: Hyderabad,Bangalore,Pune and Kolkata - WFO

Primary Skills -Core Networking (Cisco Routing & Switching, Meraki, Zscaler, and SD-WAN)

Responsibilities-

Respond to network incidents and service requests within defined SLAs.
Perform initial triage and troubleshooting of network-related incidents.
Troubleshoot network issues related to Cisco Routing & Switching, Zscaler, Meraki, and SD-WAN technologies.
Analyze network performance metrics and logs to identify and resolve issues.
Configure and deploy Cisco routers and switches for LAN and WAN connectivity.
Implement VLANs, trunking, and inter-VLAN routing for network segmentation.
Deploy and maintain Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) solutions.
Assist in the deployment and management of SD-WAN and Meraki solutions, including vManage, vBond, and vSmart.
Assist in the implementation of network changes and updates following change management processes.
Document all changes made to network configurations and ensure compliance with company policies and procedures.
Design and implement complex Cisco Routing & Switching configurations, including dynamic routing protocols (OSPF, EIGRP, BGP).
Optimize network performance and reliability by fine-tuning routing protocols and QoS policies.
Design and implement advanced Zscaler security policies to protect against evolving threats.
Lead troubleshooting efforts for complex network issues, including packet captures and analysis.
Conduct root cause analysis (RCA) for recurring network incidents and implement preventive measures.
Provide mentorship and guidance to Level 1 support engineers on troubleshooting methodologies.
Conduct capacity planning assessments to ensure network scalability and performance.
Design and implement network architecture changes to support business requirements and growth.
Evaluate new technologies and make recommendations for network upgrades and enhancements.
Engage with vendors and third-party providers to resolve escalated network issues.
Manage vendor relationships and coordinate support activities for critical network components.
Participate in vendor evaluations and product selection processes for network infrastructure.

Mandatory Skills-

Must have knowledge of Static Routing, EIGRP, OSPF, BGP, VLAN, VTP, Truck, inter VLAN, STP, MSTP, stacks, VSS, VPC, VDC. Experience with inter-company routing is preferred.
Hands-on working experience on Cisco Switches, 2950, 3750,3850, C9000 series Power Stacking, Data Stacking, HSRP, VRRP & GLBP.
Expert knowledge of protocols such as HTTP, SMBSMTP, FTP, DNS, TLS/SSL, TCP, etc.
Advanced knowledge of technologies like VPN, VXLAN, VRRP, HSRP, STP, Port channel, NetFlow, and stacking technologies.
Knowledge or experience with modern data center fabrics such as Nexus 9K using NDFC (DCNM), Arista VXLAN-BGP-EVPN, or Cisco ACI.
Working technical knowledge of network and security protocols (IPSEC VPN, QoS, SGT, SSL VPN, AAA, Dot1x, TustSec, NAT, etc).
Security Knowledge on Firewall (Cisco ASA, Fortinet, Palo Alto) & NAC(ISE).
Familiarity with collecting and analyzing packet captures using Network Protocol Analyzers such as TCPDUMP, and Wireshark on Network Security (SSL/TLS, VPNs, Firewall).
Familiar with Authentication systems such as LDAP, MS AD, SAML, & VPN technologies such as IPSEC and Remote access VPN.
Experience implementing Cisco Nexus 9K and Cisco Catalyst 9K switching.
Maintain, lead, and deploy fabric-enabled networks with Cisco DNAC.
Knowledge or experience with SD-WAN: - including vManage, vBond, vSmart. The role requires the ability to design, deploy, configure, and manage SD-WAN solutions, encompassing SD-WAN policies, templates, and orchestrators.
Execute end-to-end deployment of SD-WAN policies, templates, and orchestrators. QoS Implementation.
SD-WAN Design and Deployment: Design, implement, and manage SD-WAN solutions, covering components such as vManage, vBond, and vSmart.
Design, implement, and manage Cisco Meraki SD-WAN solutions
Expert in troubleshooting network issues and familiarity with the necessary tools such as Ping, Traceroute, MTR, NMAP, Telnet, NSLOOKUP etc.
Good experience working on SolarWinds NPM, NCM, IPAM, and syslog.
Knowledge or experience with the Zscaler ZIA portal. Creating Zscaler firewall control policy based on change requests.
Knowledge or experience with proxy services, particularly BlueCoat hardware and Zscaler cloud-based solutions (ZIA & ZPA), ZIA proxy policies like URL filtering, Malware and file control for users.
Strong analytical and problem-solving skills with the ability to quickly diagnose and resolve network issues.