Network Administrator

Network Administrator

Job Description Must Have Technical/Functional Skills Enterprise IT Network • Cisco Switching: Catalyst (L2/L3) • Cisco Wireless: WLC, Access Points • Firewalls: Cisco Firepower / ASA (or equivalent) • Cisco DNA Center (DNAC) • Cisco ISE (NAC, authentication) Core Networking • TCP/IP, VLANs, VXLAN, • Routing (OSPF/BGP) • NAT, ACLs, segmentation OT Awareness (Good to Have) • Basic understanding of: o IT/OT segmentation o Industrial environments o OT security concepts Roles & Responsibilities • Act as the primary SME for all IT network related incidents. • Perform end-to-end troubleshooting and resolution independently • Handle high-severity and production-impacting incidents with full ownership. • Perform deep root cause analysis (RCA) and implement permanent fixes. • Manage and support Enterprise IT Network: o Cisco LAN (Catalyst switches – L2/L3) o Wireless (WLC, Access Points, RF troubleshooting) o Firewalls (Cisco Firepower / ASA or equivalent) o Cisco DNA Center (DNAC) – monitoring, assurance, compliance o Cisco ISE – authentication, NAC, policy enforcement o Proactively identify and fix network health and performance issues. o Work closely with onsite OT/network plant teams for: • Plant network dependencies • Industrial connectivity issues • Change coordination impacting production o Provide IT-side inputs for IT/OT segmentation and security. o Perform OT Network troubleshooting o Execute Network changes (configurations, upgrades, patching) o Perform New deployments and site expansions o Ensure Proper risk assessment and rollback planning o Changes executed during approved windows o Manage EOL/EOS tracking and remediation. o Implement and maintain Network segmentation o Firewall policies and secure access controls o Vulnerability remediation and patching o Security incident investigation o Coordinate with OEM TAC (Cisco, firewall vendors) o Create, Update and Maintain Network diagrams and configurations o IP address management o Create, Update and Maintain SOPs/runbooks o Ensure accurate ITSM updates and audit compliance. Generic Managerial Skills, If any • Strong ownership mindset and ability to work independently is critical • Excellent troubleshooting and analytical skills • Ability to handle production-critical situations under pressure • Clear communication with IT, OT, and business stakeholders • High discipline in documentation and change processes Base Salary Range : $85,000 to $95,000 Per Annum