- 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
Network Engineer in Sheffield employer: Infinity Quest
Infinity Quest is an exceptional employer that values innovation and collaboration, providing a dynamic work environment in Telford. Employees benefit from a strong focus on professional development, with ample opportunities for growth and advancement within large-scale programmes. The company fosters a supportive culture that encourages accountability and teamwork, making it an ideal place for those seeking meaningful and rewarding employment.
