Sheffield, United Kingdom | Posted on 08/18/2026 • 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 #J-18808-Ljbffr
Senior Network Engineer - Cisco SD-WAN & OT/ICS Expert employer: Test Triangle Limited
Test Triangle Limited is an exceptional employer, offering a dynamic work environment that fosters innovation and collaboration in the heart of the United Kingdom. With a strong focus on employee growth, we provide comprehensive training and development opportunities, ensuring our team members are equipped to excel in their roles. Our commitment to regulatory excellence and risk management not only enhances professional skills but also contributes to meaningful outcomes in the financial sector.
