Network Engineer
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Job Summary
- Location Sheffield 3 days/week
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 Perdue 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 Wonder ware Siemens TIA Portal Rockwell FactoryTalk).
Familiarity with network monitoring tools
