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# Principal Network Design Engineer

- **Company:** M Group Ltd
- **Location:** Birmingham, UK
- **Contract:** Permanent contract
- **Skills:** Digital Architecture, Firmware, IPv4, Virtual Private Networks (VPN), Multi-protocol Systems, Local Area Networks, Network Planning and Design, Routing, Network Management System, Transmission Control Protocol (TCP), Wide Area Networks, Network Routers, Computer Networking Systems, Identity Services Engine, Cisco Switches, Network Optimization
- **Published:** June 4, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=6cd2ab21ba886aeb

## About the Role

Do you have experience in WAN?, You will have previous experience with data, network and transport layers of communication or networking systems, IPV4/6, TCP, and other emerging protocols.

Key Requirements:

 * SD-WAN
 * Network Design experience
 * Cisco ISE, ASA, Umbrella
 * Skills in Cisco switches and routers
 * Proficiency in maintenance and firmware upgrades
 * Knowledge of Infrastructure Security, network management tools, MPLS, SD-WAN, VPN, and routing protocols

## Description

Right across infrastructure, there's a requirement to not only maintain, but also renew and reimagine. Whatever stage you're at in your career, with us you'll have an opportunity to grow and develop. Delivering essential infrastructure services for life, while being safety first, and client and customer centric in a friendly, fun and respectful environment where you are encouraged to thrive.

As the Principal Network Design Engineer, you will be required to provide complex support to the Corporate Network project for Cisco ISE, ASA and Umbrella, as well as Network Design and architect responsibilities. You will act as a single point of contact (Customer Technical Advocate) for the customer and internal stakeholders for Corporate LAN Network, with skills within Cisco ISE, ASA and Umbrella.

What you'll do:

 * Work as part of a dedicated engineering team providing technical Solutions, Design Architecture and support across modern networks.
 * Responding to problems escalated via the NRTS/Highways Technology Service desk/NOC and progressing the issue until closure to the customer's satisfaction, liaising with the NRTS NOC, field O&M/ customers during the life of the open problem, endeavouring to meet customer contractual SLA's/KPIs.
 * Facilitate identification of control mechanisms and critical action/recovery paths for system components
 * Assist on providing Proactive Maintenance by monitoring and anticipating network performance with the result of avoiding issues/outages in the customer network.
 * Assist on providing conduct network performance analysis to assess the impact of a problem and to solve customer service-related issues.
 * Manage preparation and execution of service migration MOPs, network upgrades and retrofits, and ensure related communication towards the engineering team.
 * Timely notification anomalies with respect to products and their operational configurations, to avoid known issues in NRTS and National Highways Corporate Network which may have potential operation impact. Analyse if a technical document (procedure, notification) is applicable to the NOC, field O&M and propose Action Plan


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