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
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