Principal Network Design Engineer

Salary: £35,000 - 60,000 per year

Requirements:

• Extensive experience in network design and architecture within complex or regulated environments
• Expert knowledge of Cisco networking technologies and enterprise network design
• Strong experience with Palo Alto or equivalent firewalls and Zero Trust architecture
• Proven experience defining WAN strategy, SD-WAN, and resilient network design
• Deep understanding of security frameworks such as NIST, NCSC, and IEC 62443
• Excellent communication skills with the ability to engage senior stakeholders
• Degree-level qualification or equivalent with relevant industry certifications such as CCIE or CCNP

Responsibilities:

• Set and maintain technical solution priorities across our network design portfolio
• Provide senior technical oversight and assurance by reviewing and approving HLDs and LLDs across LAN, WAN, WLAN, and security domains
• Define and evolve our network design standards, reference architectures, and best-practice guidance
• Ensure compliance with relevant regulatory frameworks and industry standards
• Lead senior stakeholder engagement, including technical workshops and governance boards
• Provide technical escalation support and ensure design integrity through delivery phases
• Lead technical risk management, mentoring, and continuous improvement across our design function

Technologies:

• Cisco
• Support
• LAN
• Network
• Security
• WLAN

More:

We are Telent, and we deliver essential infrastructure services that help maintain, renew, and reimagine critical infrastructure. We offer a friendly, fun, respectful, safety-first environment where people are encouraged to grow and thrive. This is a full-time Principal Design Engineer (Networks) role based in Bridgwater, Somerset, with hybrid working: you will work from home at least 3-4 days per week, travel to our Bridgwater office at least 1-2 days per week, and occasionally attend our Warwick HQ. We are committed to an inclusive culture and welcome applicants from all backgrounds. The role comes with a company car allowance, healthcare, 26 days holiday plus public holidays with the option to buy or sell days annually, a company pension scheme, family-friendly policies, occupational health support, a wellbeing portal, and discounts on cinema, restaurants, and shopping through our reward scheme. We are guided by our values of being inclusive, taking responsibility, collaborating, and being customer-focused, and we invite you to help deliver critical infrastructure projects that make a real difference.

last updated 30 week of 2026