Senior Network & Security Administrator (F5 & Infoblox)

Alphacom Systems And Solutions

5 - 8 years

7 - 14 Lacs

Pune Chennai Bengaluru

Posted:2 weeks ago| Platform:

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Skills Required

F5 Load Balancer Cisco switches and routers Infoblox DNS/DHCP/IPAM Forescout NAC Checkpoint firewall NAT AWS Networking BGP TACACS/ISE STP OSPF SIEM tools

Work Mode

Work from Office

Job Type

Full Time

Job Description

Senior Network & Security Administrator

Key Responsibilities:

Manage and maintain network infrastructure including
Cisco core routers/switches
, Checkpoint firewalls, and F5 Load Balancers (LTM/ASM/APM).
Configure and administer
Infoblox
for DNS, DHCP, and IPAM management.
Design, implement, and support enterprise
VPN (IPSec/MPLS/B2B)
and
LAN/WAN
infrastructure.
Administer and troubleshoot
Cisco ASA/FTD firewalls
, TACACS, ISE policies.
Implement and monitor
firewall rules, NAT, ACLs, and access control policies
.
Work closely with internal teams and external vendors to deploy, patch, upgrade and troubleshoot networking devices.
Monitor and optimize network performance using
SolarWinds, SIEM tools
, and log analyzers.
Ensure compliance with industry best practices, patch management, and change documentation.
Manage network device backups and contribute to
DR/BCP planning
.
Participate in
on-call support rotation
, incident response, and RCA documentation.

Mandatory Skills (Must-Have):

Cisco Routers/Switches (Nexus, Catalyst), BGP, OSPF, VLAN, STP, HSRP
Checkpoint Firewall, Cisco ASA/FTD, Fortinet (preferred)
F5 Load Balancer (LTM, ASM, APM), GSLB, SSL offloading
Infoblox DNS/DHCP/IPAM
VPN IPSec, MPLS, GRE tunnels
Network Monitoring SolarWinds, SNMP
Cisco ISE, TACACS, AAA
NAT, ACL, Access Policies
SIEM tool exposure
AWS Networking knowledge (VPC, SGs, routing)

Good to Have (Optional but Preferred):

Citrix ADC (NetScaler), Aruba NAC, McAfee DLP
Meraki MS/MR/MX devices
Experience in patching and firmware upgrades
RMA, Vendor management, and escalation
Pre/post-sales support experience

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