Network Engineer - OT Security/SCADA

Strong expertise with Cisco Catalyst switching (IOS-XE), VLANs, STP, RSTP, port security, and Qos.

Practical experience with Cisco SD-WAN / Catalyst SD-WAN) - policy templates, VPN segmentation, and WAN 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/IP, PROFINET, IEC 61850, or OPC-UA.

Experience writing Terraform configurations for infrastructure provisioning

Exposure to CI/D tooling (GitLab CI, GitHub Actions, Jenkins, or equivalent).

Scripting proficiency in Python and/or Bash for network automation tasks.

Strong troubleshooting skills 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 with SCADA/ICS systems (e.g., Ignition, Wonderware, Siemens TIA Portal, Rockwell FactoryTalk).

Familiarity with network monitoring tools

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