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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Specialist Engineer - Networks - **Company:** UK Health Security Agency - **Location:** Liverpool, UK - **Experience:** Expert - **Salary:** £56,185.0 - £70,566.0 - **Contract:** Permanent contract - **Skills:** Wireless LAN, Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Dynamic Host Configuration Protocol, Domain Name System (DNS), Python (Programming Language), Network Security, Network Architecture, Routing, Network Segmentation, Network Service, Open Shortest Path First (OSPF), Remote Access Technology, Ansible, Zero Trust Network Access, Security Information and Event Management, Software Deployment, Wide Area Networks, Load Balancing, Cloud Platform System, Infrastructure Automation Frameworks, Palo Alto Networks, Performance Monitor, Wireless Technologies - **Published:** September 10, 2026 - **Apply:** https://www.totaljobs.com/job/specialist-networks/uk-health-security-agency-job107961063 ## About the Role We're seeking a highly experienced network professional with deep technical expertise, strong leadership capability and a passion for delivering secure, enterprise-scale services. Networking & Infrastructure You'll have expertise in areas such as: - Enterprise routing and switching technologies - OSPF, BGP, IS-IS and modern WAN/SD-WAN architectures - LAN, WAN and WLAN design and support - DNS, DHCP and IPAM services - Load balancing and application delivery technologies, Palo Alto Networks firewalls, Panorama and GlobalProtect - Network segmentation and Zero Trust architectures - Secure network design aligned with industry best practice - VPN technologies, remote access and perimeter security Extreme Networks Technologies Experience with any of the following is highly desirable: - Extreme Fabric Engine (VOSS) - EXOS Switching - Extreme Wireless Solutions - Extreme Site Engine Equivalent experience with comparable enterprise networking technologies will also be considered. Cloud & Automation You should also have experience of: - Hybrid networking across Azure, AWS or similar cloud environments - Network and infrastructure automation using tools such as Ansible and Python - Configuration-as-Code and automated operational practices Leadership & Stakeholder Engagement We're looking for someone who can: - Lead technical response during critical incidents - Solve complex problems and make sound technical decisions - Communicate effectively with both technical and non-technical audiences - Build strong relationships with stakeholders and customers - Operate within structured IT service management environments Essential Requirements You will have: - A professional networking qualification at CCNP level or above, or equivalent senior-level experience - Evidence of ongoing professional development within networking and infrastructure technologies - The ability to meet the requirements for Security Check (SC) clearance Desirable Qualifications It would be beneficial if you hold one or more of the following: - Palo Alto PCNSE - Extreme Networks certifications - ITIL Foundation (v3 or v4) - Azure Network Engineer Associate - AWS Advanced Networking Speciality - Experience with SIEM, Zero Trust and network observability platforms ## Description We're looking for an experienced Senior Specialist Engineer - Networks to lead the evolution of our enterprise network services, ensuring the resilient, secure and high-performing infrastructure that underpins critical scientific, operational and public health systems. This is more than a network engineering role. It's an opportunity to apply your expertise at a national scale, influencing the technology that helps safeguard the nation's health. Why This Role Matters As the senior technical authority for network infrastructure, you'll shape the design, security and future direction of a complex, multi-site enterprise environment. Working alongside specialists across infrastructure, cloud, security and applications, you'll help deliver network services that are secure, resilient and ready to support UKHSA's mission both now and into the future. If you're passionate about solving complex technical challenges, driving innovation and mentoring others, we'd love to hear from you. What You'll Be Doing You'll play a pivotal role in leading and evolving our network capability by: - Designing and developing enterprise network architectures across LAN, WAN, WLAN and security domains. - Producing and maintaining architecture documentation, including High Level Designs (HLDs), Low Level Designs (LLDs) and technical standards. - Acting as the senior technical lead during major incidents, driving resolution and supporting post-incident reviews. - Delivering secure, resilient network solutions aligned to NCSC Secure by Design principles. - Managing and optimising enterprise switching, routing, wireless and firewall technologies. - Supporting cloud and hybrid networking across Azure, AWS and on-premises environments. - Driving continuous improvement through automation, observability and performance monitoring. - Evaluating emerging technologies and advising on strategic technology decisions. - Coaching and mentoring engineers across the wider technology function. - Working closely with suppliers, partners and stakeholders to deliver infrastructure projects and network services successfully. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [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) - [Dev & Test in the Cloud? 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