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Test Triangle

Network Engineer

Test Triangle Killamarsh, England, United Kingdom

IT Services and IT Consulting · 51-200 employees

Aug 18
network-engineer Senior (5-10 yrs) Contractor United Kingdom
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About the role

The Network Engineer will be responsible for designing, commissioning, and operating Cisco SD-Access fabric and SD-WAN infrastructure. They will also manage OT network architecture, implement automation workflows, and ensure robust security across IT/OT environments.

What they look for

Cisco Catalyst SD-WAN SD-Access Cisco Catalyst Centre OT Network Architecture Terraform Python Bash Cisco ISE Ansible Cisco NSO Industrial Cybersecurity SCADA ICS Network Automation Troubleshooting

Requirements

Candidates must have over 5 years of experience with Cisco networking technologies, including Catalyst switching, SD-WAN, and ISE. Proficiency in scripting languages like Python or Bash and knowledge of industrial cybersecurity frameworks are essential for this role.

Full description

  • 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

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