edge configuration. Hands-on experience with Cisco SD-Access (SDA) fabric design, commissioning, and operations. Working knowledge of Cisco Catalyst Centre - device management, assurance, and automation workflows. Understanding of OT network architecture, including the Purdue Model and IT/OT DMZ design. Familiarity with OT protocols: Modbus, DNP3, EtherNet … across Layers 2-7. Experience with Cisco ISE (Identity Services Engine) for AAA, profiling, and TrustSec. Knowledge of Ansible or Terraform for network configuration management. Familiarity with Cisco NSO or RESTCONF/NETCONF interfaces. Exposure to industrial cybersecurity frameworks: IEC 62443, NIST SP 800-82, or NIS2. Experience ...