> Markdown version of [/jobs/ext/728595-senior-network-design-engineer](https://www.wearedevelopers.com/jobs/ext/728595-senior-network-design-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Design Engineer - **Company:** M Group Ltd - **Location:** Bridgwater, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Wireless LAN, Access Network, Multi-protocol Systems, Network Security, Network Architecture, Network Planning and Design, Routing, Network Service, Zero Trust Network Access, Wide Area Networks, Computer Networking Systems, Identity Services Engine, SC Clearance, Firewall Services Module - **Published:** June 29, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=15ac72a429d24770 ## About the Role You are a capable and experienced Network Design Engineer, who can deliver solutions in complex, regulated environments. You combine hands-on technical expertise with the ability to engage stakeholders and contribute to high-quality, compliant designs. You enjoy working collaboratively and are confident supporting delivery from design through to implementation., * Proven experience in network design across enterprise or critical infrastructure environments * Knowledge of Cisco networking (routing, switching, wireless) and NAC technologies (e.g. Cisco ISE) * Experience designing secure networks including Zero Trust and next-generation firewalls (e.g. Palo Alto) * WAN design experience including MPLS, DIA and understanding of SD-WAN concepts * Familiarity with relevant standards/frameworks (e.g. NIST, NCSC, IEC 62443) * Relevant certifications (CCNP / CCIE or equivalent) * Eligible for SC clearance (minimum 5 years UK residency rule applies) * Able to complete BPSS checks ## Description We are now looking for a Senior Network Design Engineer to join our growing Network Services engineering team, supporting the delivery of secure, resilient network solutions across Critical National Infrastructure (CNI) projects, mainly within the Nuclear space. This is a hands-on Network Design role working across a major greenfield programme, where you'll take ownership of network designs and support delivery into live operational environments. What you'll do: * Produce High-Level and Low-Level Designs (HLD/LLD) for LAN, WAN, WLAN and NAC (Network Access Points) solutions * Design secure network architectures including segmentation, Zero Trust and firewall policies * Support WAN design including DIA, MPLS and resilient network architectures * Engage with stakeholders to define requirements and gain technical design sign-off * Provide technical support through delivery, installation and commissioning / testing phases * Produce and maintain clear technical documentation, standards and diagrams * Mentor junior engineers and contribute to continuous improvement within the team ## Related Videos - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [UK Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/326-uk-business-culture-and-etiquette) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)