Job Description

System Administrator 10+yrs Kondapur, Hyderabad Job description Monitor network performance, availability, and security to ensure optimal functionality. Troubleshoot and resolve network connectivity issues across LAN, WAN, and wireless networks. Respond to and manage incoming support tickets, escalating issues as necessary. Manage firewall configurations, security profiles, IPsec VPNs, and intrusion prevention measures. Configure, maintain and troubleshoot routers, switches, and firewalls (Cisco, SonicWall, Juniper SRX, Palo Alto). Provide technical support to internal teams and external clients via email, chat, and phone in a 24/7 environment. Ensure compliance with SLAs by addressing incidents and outages promptly. Conduct network audits and apply necessary patches, updates, and firmware upgrades. Maintain and optimize network monitoring tools to proactively detect and address performance bottlenecks. Implement and refine security measures, including access controls and endpoint protection. Analyze and troubleshoot network logs to detect potential threats and performance issues. Configure and manage wireless networks, particularly with Aruba Wireless products. Document network changes, update network diagrams (HLD/LLD), and maintain accurate system records. Design, implement, and scale network infrastructure to support business growth and operational needs. Assist in evaluating and integrating new networking technologies, protocols, and hardware. Research and recommend network improvements, including upgrades to LAN, WAN, MPLS, and cloud networks. Train employees on network best practices, security policies, and safe data handling procedures. Participate in vendor negotiations and manage contracts related to networking services. Support video conferencing systems and provide training for staff on usage and security. Assist with disaster recovery planning, including data backup and network failover strategies. Key requirements As a candidate for the Network Administrator role, you must fulfill the following skill and qualification requirements: Bachelors degree in IT, Computer Science, or a related field (Masters degree preferred). Minimum CCNP certification or equivalent knowledge in networking. Any graduation or B.E. degree with relevant technical experience. 5+ years of hands-on technical experience in network administration, troubleshooting, switching, and routing. Strong understanding of computer network infrastructure, LAN, and WAN administration. Experience with network security, firewall management, and VPN implementations. Proven ability to implement, administer, and troubleshoot network infrastructure devices such as routers, switches, and firewalls. In-depth knowledge of network infrastructure protocols (TCP/IP, DNS, DHCP, BGP, MPLS, VLANs, and QoS). Experience with network monitoring tools and performance optimization. Ability to analyze network issues, visualize solutions, and resolve problems efficiently. Hands-on experience with common industry frameworks and troubleshooting methodologies. Ability to create network diagrams and documentation for design and planning. Ability to work with all levels of IT staff and external vendors. Effective problem-solving skills, adaptability, and a strong safety record in network operations. Good-to-have skills & experience: Experience with BGP, software-defined networking (SDN) using Cisco ACI, and NSX. Hands-on experience with Checkpoint/Cisco Firepower firewalls and F5 load balancers. Experience with software automation for network configuration and management. Strong background in large-scale network management and enterprise-level troubleshooting. Any othe relevant certifications around network administration, like Cisco Certified Network Associate (CCNA), Microsoft Certified: Azure Administrator Associate, and CompTIA Security+.