Senior Network Engineer

Kriyalogic; Kolkata District, Pune District, Bengaluru; On-site; INR 700,000 - 1,000,000; Full time

Job summary

Kriyalogic is seeking a network professional to perform hands-on configuration and troubleshooting across switches, routers, firewalls, and wireless systems in multiple locations. The role emphasizes strict access control, VLAN isolation, and secure device management, with responsibility for VPNs, MFA, and enterprise Wi‑Fi.

You will diagnose performance issues, analyze traffic, and coordinate with IT, security teams, ISPs and vendors to implement robust, compliant networking solutions across

Responsibilities

• Perform hands-on configuration and troubleshooting of switches, routers, next-generation firewalls, and wireless networks.
• Enforce client/project, corporate, lab, and guest isolation using VLANs, restricted trunks, and default-deny inter-VLAN policies; validate access boundaries.
• Administer TCP/IP, DNS, DHCP, NAT, OSPF/BGP, STP, and LACP; resolve routing, switching, and connectivity issues.
• Implement 802.1X/NAC, port security, DHCP snooping, Dynamic ARP Inspection, BPDU Guard, and secure device administration.
• Manage firewall rules, ACLs, IPS, IPsec/SSL VPNs, MFA, and enterprise Wi-Fi authentication; maintain client VPN and guest wireless isolation.
• Diagnose outages, latency, packet loss, and suspicious traffic using Wireshark/tcpdump, syslog, and NetFlow/sFlow; integrate logs with SIEM and support incident investigations.
• Patch devices, remediate vulnerabilities, and maintain tested configuration backups, change validation, and rollback plans.
• Maintain network diagrams, IP address records, and client access rules; automate configuration checks and coordinate resolution with IT, security teams, ISPs, and vendors.

Job description

Key Responsibilities

• Perform hands-on configuration and troubleshooting of switches, routers, next-generation firewalls, and wireless networks.
• Enforce client/project, corporate, lab, and guest isolation using VLANs, restricted trunks, and default-deny inter-VLAN policies; validate access boundaries.
• Administer TCP/IP, DNS, DHCP, NAT, OSPF/BGP, STP, and LACP; resolve routing, switching, and connectivity issues.
• Implement 802.1X/NAC, port security, DHCP snooping, Dynamic ARP Inspection, BPDU Guard, and secure device administration.
• Manage firewall rules, ACLs, IPS, IPsec/SSL VPNs, MFA, and enterprise Wi-Fi authentication; maintain client VPN and guest wireless isolation.
• Diagnose outages, latency, packet loss, and suspicious traffic using Wireshark/tcpdump, syslog, and NetFlow/sFlow; integrate logs with SIEM and support incident investigations.
• Patch devices, remediate vulnerabilities, and maintain tested configuration backups, change validation, and rollback plans.
• Maintain network diagrams, IP address records, and client access rules; automate configuration checks and coordinate resolution with IT, security teams, ISPs, and vendors.

Location

Bangalore , Pune, Kolkata , Indore