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Senior CNS Engineer

Feltham, United Kingdom💼 Full-time🗓 2026-08-27 → 2026-09-26

Core

Senior Network Support Engineer acting as the primary interface for UK Data Sovereignty customers, analyzing and de-sensitizing critical network data to route complex issues to global Cisco Support while ensuring regulatory compliance.

Role type

Senior IC network support engineer (data sovereignty & AI-enabled operations)

Builds

Secure incident resolution workflows and data sanitization pipelines for enterprise and public sector customers

Domain

Enterprise networking, data sovereignty, AI-driven support operations

Deliverable

production ML models | product features | dashboards & analysis | client delivery

Required skills

enterprise network troubleshooting (Routing, Switching, Security), AI/LLM tool application for log analysis and data sanitization, high-severity incident lifecycle management, lab recreation and validation, technical escalation coordination, data handling protocols in regulated frameworks

Preferred skills

Cisco Professional/Expert certifications (CCNP/CCIE), UK Security Clearance (SC/DV), Python/Bash scripting for automation, executive communication and presentation, mentoring and ITIL/CSI best practices

Technologies

Cisco IOS-XE, NX-OS, Python, Bash, LLMs, AI-assisted data sanitization utilities

Responsibilities

Serve as primary point of contact for network incidents and manage technical cases to resolution; Prepare, manage, and de-sensitise critical customer data using automated and AI-assisted workflows; Configure, diagnose, and troubleshoot technical issues across multi-vendor and Cisco enterprise environments; Issue and review Field Notices, Security Advisories, and software defects with customers; Provide dedicated support and mentoring to team members, driving high standards of technical excellence and AI tool adoption

Seniority

Senior, hands-on IC with mentorship responsibilities

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