Senior Network Engineer- Cisco & OT/Industrial Networks

Job Title: Senior Network Engineer

• Cisco & OT/Industrial Networks

Location: [Leeds/Sheffield,UK]

• Hybrid

Company Overview:

We are looking for a Senior Network Engineer with strong expertise in Cisco technologies, SD-WAN, SD-Access, and industrial/OT networks to join our team and drive innovative projects for our client

Role Overview:

As a Senior Network Engineer, you will design, implement, and maintain secure, high-performance networks across IT and OT environments. You will collaborate with engineering and operational teams to deploy Cisco SD-WAN, SD-Access, and automation solutions, ensuring robust connectivity and compliance with industrial cybersecurity standards.

Key Responsibilities:

• Design, configure, and troubleshoot Cisco Catalyst switching (IOS-XE), VLANs, STP/RSTP, port security, and QoS.
• Implement and manage Cisco SD-WAN / Catalyst SD-WANsolutions, including policy templates, VPN segmentation, and WAN edge configuration.
• Deploy and operate Cisco SD-Access (SDA) fabric, including design, commissioning, and lifecycle management.
• Utilize Cisco Catalyst Centre for device management, monitoring, and automation workflows.
• Support OT network architectures, including Purdue Model and IT/OT DMZ designs.
• Work with industrial protocols: Modbus, DNP3, EtherNet/IP, PROFINET, IEC 61850, OPC-UA.
• Write Terraform configurations for network provisioning and automate deployments using Python or Bash scripts.
• Collaborate in CI/CD pipelines using GitLab CI, GitHub Actions, Jenkins, or equivalent.
• Administer Cisco ISE for AAA, profiling, and TrustSec policies.
• Implement configuration management using Ansible, Terraform, and/or Cisco NSO.
• Ensure adherence to industrial cybersecurity standards: IEC 62443, NIST SP 800-82, NIS2.
• Monitor and troubleshoot network issues across Layers 2–7 and SCADA/ICS environments (Ignition, Wonderware, Siemens TIA Portal, Rockwell FactoryTalk).

Qualifications & Experience:

• Hands-on experience with Cisco Catalyst switches, SD-WAN, SD-Access, and network automation.
• Proven experience in industrial/OT network environments and familiarity with OT protocols.
• Proficient in Python, Bash, Terraform, Ansible, or other network automation tools.
• Strong understanding of network security and compliance frameworks for industrial environments.
• Excellent problem-solving, troubleshooting, and communication skills.
• Cisco certifications (CCNP/CCIE) preferred.

What We Offer:

• Competitive salary and benefits package.
• Opportunity to work on cutting-edge network infrastructure projects.
• Exposure to hybrid IT/OT networks and industrial cybersecurity.
• Collaborative and innovative work environment.

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If you are passionate about network engineering, industrial environments, and automation, we want to hear from you. Click Applyto join our client’s team!