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Senior Network Engineer

STFC - The Science and Technology Facilities Council - Digital Infrastructure Team

Location: Harwell
Salary: £58,346 to £64,179 gross per annum (dependent on skills and experience)
Hours: Full Time
Contract Type: Permanent
Placed On: 19th December 2025
Closes: 18th January 2026
Job Ref: 1781

Hours: Full-Time (We understand the importance of work-life balance and are happy to discuss flexible working opportunities with candidates)

Location: Science and Technology Facilities Council, Rutherford Appleton Laboratory Harwell, Oxfordshire  

This role requires SC Clearance- Please see end of role profile to see eligibility criteria
 
Come and do the kind of engineering that made you want to be an Engineer. Stretch your technical skills while building human understanding.

Put simply come and discover the impact you can make when you’re equipped, encouraged and inspired to perform at your very best. 
 
About Us

At the Science and Technology Facilities Council (STFC), we are dedicated to supporting ground-breaking projects across various scientific disciplines, delivering economic, societal, scientific, and international benefits to the UK and its people. As part of UK Research and Innovation, we pride ourselves on equipping, encouraging, and inspiring our employees to perform at their very best. 
 
Our reward package includes a flexible working scheme, a defined benefit pension scheme, 30 days annual leave allowance plus 10.5 bank holiday/privilege days and a number of other benefits.

About the Role

We are seeking a talented Senior Network Engineer to join our esteemed Digital Infrastructure team. If you have a passion for high-end networks and want to make a significant impact in a diverse department at the heart of UK science, this is the role for you.
 
You will have the opportunity to support and maintain STFC's IT Network, with a specific focus on firewall, routing, WI-FI, and security systems. As a Senior Network Engineer, you will leverage your extensive expertise in LAN and WAN, IP address management, firewalls, security access control systems to deliver innovative solutions and ensure network stability and security. 
 
You will provide leadership, guidance, and expertise in supporting and maintaining crucial services within our network portfolio. This position may require travels to other STFC sites, as well as partner and supplier offices.
 
This is a unique opportunity to work on cutting-edge projects and contribute to ground-breaking scientific advancements. 
 
Key Responsibilities Include: 

  • Active participation for the support of STFC WAN, sites LAN, routing, WI-FI, firewall and network security, IPAM, network access control, and cloud telephony
  • Collaborating with other teams to ensure IT systems and services meet evolving needs 
  • Project involvement and overseeing new service transitions 

To excel in this role, you should possess Expertise in at least one of the following: 

  • Enterprise firewall management 
  • Network Access Control systems
  • WiFi management systems
  • Experience in routers and routing management

In addition, we highly value the following skills and experiences (minimum 3 required): 

  • Knowledge and experience in running multi-site network environments
  • Experience managing and configuring Layer 2 and Layer 3 network switches with associated network services such as DNS and DHCP
  • Experience in Extreme Cloud IQ WI-FI management system or equivalent and excellent knowledge of Network Access Control system (preferably Clearpass)
  • IP Address Management experience using Infoblox solutions or equivalent 
  • Experience in Fibres and Cable management
  • Excellent analytical and problem-solving abilities

SC Clearance

The post you are applying for attracts a National Security Vetting clearance, there are further eligibility requirements, for further details at:  https://www.gov.uk/government/organisations/united-kingdom-security-vetting
 
Join us and discover what’s possible! 

To apply for this role, please click on the 'Apply' button above.

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