Senior Network Engineer
Confirmed on the employer's own hiring board on Oct 9, 2026. First seen by Alion on Sep 25, 2026.
About the Role
The National Physical Laboratory is the UK's leading centre for measurement science, engineering, and technology. We develop national measurement standards, support scientific and commercial innovation, and collaborate with industries to ensure precision in products and processes. Through our important scientific and researchwork we address key challenges in health, energy, security, telecommunications and sustainability, driving economic growth and enhancing quality of life.
We’re seekinga talented and experienced Senior Network Engineer to join our growing Technical Operations team.The primary focus of therole is network engineering, with a secondary requirement to provideon-premisesinfrastructure support. The ideal candidate will have extensive experience in managing and supporting complex network environmentsand ideally have some experience of working in a hybrid network/infrastructure role.
The role offers exposure to a wide range of technologies across networks, physical infrastructure and cloud computing and will be instrumental in ensuring that the critical technical systems supporting the essential work our scientists do, is maintained to a high standard.
The ideal candidate will live within commuting distance to our Teddington siteas we support a physicalnetwork, but we will consider a degree of remote working for an exceptional candidate,and we welcome applications from experienced candidates, who have a wide range of technology experience even if that experience does not include some of the technologies listed below.
About You
Key required experience, knowledge and skills:
- Network protocols and topologies including OSPF, BGP, VRFs
- Experience with Alcatel-Lucent Enterprise switching and OmniVista management is ideal but experience with other equivalent enterprise networking technologies is also acceptable
- Experience of Alcatel-Lucent Enterprise Stellar Wi-Fi or similar Wi-Fi networks
- Stateful and Next Gen Firewalls (NPL usesFortinet) and IPSec VPN
- Network security concepts such as NAC, 802.1x and segmentation systems and any experience with Forescout is beneficial
- Protocols used in resilient systems e.g. VRRP, LACP, Virtual-Chassis
- Proficiency in using network management tools (e.g., SolarWinds)
- Experience of implementing SD-WAN, MPLS technologies
- Experience with network segmentation, zero trust principlesand micro-segmentation
- Knowledge of IPv6 implementation and transition strategies
- Familiarity with wireless security protocols (e.g., WPA3, 802.1X)
Additional experience beneficial to the role:
- Any experience with Allied Telesis EPSR Ring topologies and network management tools
- Experience with Quality of Service (QoS) configuration and management
- VMWare VCenter virtualisation platform
- On Prem storage arrays (NPL uses Hitachi)
- Managed backup solutions (NPL uses Rubrik)
- Active Directory, DNS, DHCP
- Microsoft 365E5, Azure, EntraID
- Experience of Cloud Virtual Networking (Azure)
Soft Skills:
The role requires excellent problem-solving and analytical skillscoupled with strong communication and interpersonal skillsand the ability to manage multiple tasks and projects simultaneously.
We actively recruit citizens of all backgrounds, but the nature of our work in specific departments means that nationality, residency and security requirements can be more tightly defined. You will be asked about this throughout the recruitment process. To work at NPL, you will need to obtain BPSS security clearance.
Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert therefore we may at any time bring the closing date forward. We encourage all interested applicants to apply as soon as practical.
About Us
The National Physical Laboratory (NPL) is a world-leading centre of excellence that provides cutting-edge measurement science, engineering and technology to underpin prosperity and quality of life in the UK.
NPL and DSIT have strong commitments to diversity and equality of opportunity, and welcome applications from candidates irrespective of their background, gender, race, sexual orientation, religion, or age, providing they meet the required criteria. Applications from women, disabled, black, Asian and minority ethnic candidates in particular are encouraged. All disabled candidates (as defined by the Equality Act 2010) who satisfy the minimum criteria for the role will be guaranteed an interview under the Disability Confident Scheme.
At NPL, we believe our success is a result of the diversity and talent of our people. We strive to nurture and respect individuals to ensure everyone feels valued by treating everyone on the basis of their own individual merits and abilities regardless of their own or perceived identity, as part of our commitment to diversity & inclusion, we hold memberships and accreditations to ensure we’re creating an environment where all our colleagues feel supported and welcome, please see our Diversity & Inclusion page.
We are committed to the health and well-being of our employees. Flexible working and social activities are embedded in our culture to create a positive work-life balance, along with a broad range of benefits. Our values are at the heart of what we do, and they shape the way we interact, develop our people and celebrate success.
To ensure everyone has an equal chance, we’re always willing to make reasonable adjustments to the recruitment process. If you would like to discuss, please contact us.