Job Summary

Experienced IT Infrastructure & Network Administrator with strong expertise in enterprise network operations, firewall security, and multi-vendor environments. Hands-on experience with Extreme Networks, HPE Aruba switching, Fortinet firewall, and Quantum & Aruba wireless infrastructure ensuring high availability.

Network & Infrastructure Management

- Manage enterprise LAN/WAN infrastructure
- Configure Core, Distribution, and Access switches
- Implement VLANs, Inter-VLAN routing, STP, RSTP, MSTP, LACP, Port Security
- Ensure high availability and redundancy
- Implement HSRP / VRRP
- Troubleshoot L2/L3 issues
- DHCP snooping and loop protection
- Switch firmware upgrade and backup

Switching (Extreme / HPE Aruba)

- Configure Extreme Networks switches (EXOS / VOSS)
- Configure HPE Aruba switches
- VLAN and trunk configuration
- STP, RSTP, MSTP tuning
- LACP / Port channel configuration
- Inter-VLAN routing
- Firmware upgrades and maintenance

Firewall & Network Security (Fortinet)

- Configure FortiGate firewall
- NAT (Static, Agile, PAT) configuration
- IPSec Site-to-Site VPN and SSL Remote Access VPN
- Security policy implementation
- Dual ISP failover and SD-WAN
- Log analysis and troubleshooting
- Security rule optimization

Wireless Infrastructure (Quantum & Aruba)

- Configure Quantum Wireless AP
- Configure Aruba AP and Controller
- SSID and VLAN mapping
- Guest WiFi configuration
- Wireless security WPA2/WPA3
- RF optimization and roaming
- Wireless troubleshooting
- AP provisioning and troubleshooting

Project Handling & Implementation

- Lead network implementation and upgrade projects




- Firewall migration and policy redesign
- L2 to L3 migration and VLAN redesign
- New branch connectivity deployment
- Core switch replacement and migration
- Wireless deployment and controller integration
- Dual ISP implementation and failover testing
- Network segmentation and security hardening
- Coordinate with vendors, ISPs, and stakeholders
- Prepare HLD / LLD and network documentation
- Post implementation monitoring and support

Monitoring & Operations

- Extreme Management Center
- HP NNM monitoring
- SNMP and Syslog monitoring
- L2/L3 escalation support
- Incident management
- Observium monitoring

Technical Skills

- TCP/IP, OSI Model
- VLAN, STP, RSTP, MSTP, LACP, EtherChannel
- OSPF, BGP, EIGRP
- Fortinet Firewall
- Extreme Networks and HPE Aruba Switching
- Quantum and Wireless Aruba Wireless Controller

Certifications (Preferred)

- Extreme Certification
- Fortinet NSE4
- Aruba Certification
- CCNA / CCNP

Physical Layer Knowledge

- Structured cabling (Cat6, Cat6A, Cat7, Single-mode & Multi-mode fiber) installation and troubleshooting
- SFP/SFP+/QSFP transceiver handling, compatibility and link validation
- Fiber patching (LC/SC), Tx/Rx power level verification and optical loss checks
- Patch panel termination, rack dressing, and MDF/IDF connectivity management
- 1G/10G/25G uplink provisioning over copper and fiber media
- Physical link troubleshooting using cable tester / Fluke and interface error analysis

Job Title: IT Infrastructure & Network Administrator

Experience: 8+ Years

Employment Type: Full-Time

Job Location: Bangalore / Client Locations

📌 IT Infrastructure & Network Administrator (India)
🏢 Dalvkot Utility Enterprises
📍 India