; Job Title: Senior Network & Infrastructure Engineer / L3 Network Engineer

Experience: Minimum 5 years relevant experience

Qualification: B.E./B.Tech./MCA

Certification: CCNA/CCNP mandatory

Location: Chennai

Work Mode: On-site, MondayFriday

Working Hours: 9:30 AM 6:00 PM

Support: On-call/remote support during critical hours, holidays and extended hours as required.

;Key Responsibilities

;Manage and support enterprise network infrastructure including routers, switches and network security appliances.

;Configure, troubleshoot and maintain firewalls/security configurations , VPNs, access policies and related security infrastructure.

;Manage and troubleshoot LAN/WAN, routing and switching infrastructure.

;Provide L3 support for complex network incidents and perform root-cause analysis .

;Manage servers and infrastructure , including GIS/HEP-related server environments.

;Administer and troubleshoot SAN/NAS storage systems .

;Manage backup and recovery operations , including monitoring backup jobs and restoration activities.

;Support network infrastructure, power infrastructure, physical infrastructure and structured cabling .

;Coordinate with OEMs/vendors for hardware/software issues, warranty support and escalation.

;Perform preventive maintenance, upgrades, configuration changes and system health checks.

;Maintain network diagrams, configurations, technical documentation and operational records.

;Support disaster recovery/business continuity activities.

;Provide on-call support during critical incidents, holidays and extended working hours when required.

;Ensure high availability and reliable operation of the organizations IT infrastructure.

;Required Technical Skills

;Strong knowledge of TCP/IP, OSI model, subnetting, VLANs, routing and switching .





;Hands-on experience with Cisco routers and switches .

;Routing protocols such as OSPF, BGP, EIGRP would be advantageous.

;Strong knowledge of firewalls, security policies, VPN and network security .

;Experience with SAN/NAS storage .

;Knowledge of backup and recovery solutions .

;Server administration and troubleshooting.

;Candidate Profile

; Mandatory:

;B.E./B.Tech./MCA

;Minimum 5 years relevant experience

; CCNA/CCNP certification

;Strong enterprise networking experience

;Hands-on firewall/network security experience

;Valuable troubleshooting and analytical skills

; Preferred:

;Experience with Cisco / Fortinet / Palo Alto or similar technologies

;SAN/NAS administration

;Backup & disaster recovery

;Data-center infrastructure

;Server administration

;Network monitoring tools

;Experience handling L3/escalation support

;Good documentation and communication skills

;Short Recruitment JD

; We are looking for an experienced L3 Network & Infrastructure Engineer with 5+ years of experience in enterprise IT infrastructure. The candidate should possess CCNA/CCNP certification and strong hands-on experience in routing & switching, firewall/security administration, server infrastructure, SAN/NAS storage, backup & recovery and network troubleshooting. The role involves in office infrastructure support, L3 incident resolution, preventive maintenance, vendor coordination and on-call support for critical incidents.

B.E./B.Tech./MCA candidates with strong enterprise infrastructure experience are preferred.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Network Engineer (Chennai)
🏢 Enseigner
📍 Chennai