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Job Title : Senior Network Administrator Location : Chennai and Trivandrum Job Type : Full-Time Department : IT/Infrastructure Job Summary We are seeking an experienced and highly skilled Senior Network Administrator with 8+ years of hands-on experience in network infrastructure, administration, security, and troubleshooting. The ideal candidate will be responsible for maintaining, upgrading, and managing our software, hardware, and networks to ensure high availability and performance across the enterprise. Key Responsibilities Design, configure, and maintain LAN/WAN, VPN, firewalls, routers, switches, and other network infrastructure. Monitor network performance and troubleshoot issues to ensure minimal downtime and optimal performance. Implement and manage network security policies, including firewalls, intrusion detection systems, and antivirus/malware protection. Lead network-related projects including upgrades, expansions, and migrations. Provide Level 2/3 support and mentor junior network staff. Manage IP address schema, DNS/DHCP, VLANs, and wireless access points. Monitor and report on system health, usage metrics, and trends. Document network infrastructure, configurations, and procedures. Collaborate with cybersecurity teams to enforce compliance with IT security policies and regulations. Ensure timely updates, patches, and firmware upgrades for all networking equipment. Required Skills And Qualifications Bachelors degree in Computer Science, Information Technology, or a related field. 6+ years of experience as a Network Administrator or in a similar role. Strong knowledge of Cisco, Juniper, Fortinet, or other major networking technologies. Proficiency in configuring and managing firewalls, switches, and routers. Experience with cloud networking (AWS, Azure, or GCP) is a plus. Deep understanding of TCP/IP, DNS, DHCP, and network protocols. Familiarity with network monitoring tools such as SolarWinds, PRTG, Nagios, etc. Excellent troubleshooting and analytical skills. Strong documentation and communication abilities. (ref:hirist.tech) Show more Show less
