Senior Networks Infrastructure Engineer - NCA - SEO

The purpose of the Senior Networks Infrastructure Engineer role is to ensure critical Intelligence Collection capabilities are delivered and maintained effectively to ensure they meet the NCAs evolving operational demands. Working in a small team of highly enthusiastic IT professional staff, transferring skills within the team will ensure we are better placed to look after the TI Intelligence networks to provide full critical support, upgrades, development and maintenance.

The role is responsible for: Delivering 1st, 2nd and mainly 3rd line support of technical systems to a professional standard, adapting to and meeting user requirements; Having an in-depth knowledge of the network protocols; Installing of new network hardware, configuration which will also include the patching of all network elements; Working knowledge of the Fortigate, CISCO and Dell hardware primarily; Maintaining and upgrading systems in line with technical requirements for ICI.

Security is extremely important for all of the services SOS maintain, therefore systems must be maintained to ensure these systems are accreditable. This includes updating system high and low level designs and associated documentation.

Due to the nature of this role, travel between sites is regularly required. As such, a Full, clean, UK Driving Licence is essential.

Please note, TI (Domestic) team members will be subject to an on call rota.

This role aligns towithin the Government Digital and Data career framework.

Duties and responsibilities:

• Business as usual support -Help deliver 3rd line support of the supported SOS systems to a professional standard, meeting user requirements, reacting to system problems to ensure continued availability of SOS systems within defined service levels. Support 1st and 2nd line functions if required to ensure the ICI business can function as efficiently as possible.

• Specification of hardware -Matching business requirements to hardware specifications that meet and often exceed those requirements

• Installation of hardware -Racking and cabling of hardware to an industry best practice level, including asset management registering of support, licensing

• Identification of obsolescence -Notification of obsolescence issues early in the hardware lifecycle to ensure funding and approvals are in place as early as possible, avoiding unnecessary system outages due to obsolescence

• Creation and maintenance of system documentation -Create technical designs and ensure High and Low Level Designs (HLD/LLD) are maintained to an accurate level

• Continual Improvement -Researching advances in technology to better meet business requirements with innovative solutions to meet business or technical problems

• Patching and upgrades of Network equipment -Using standard IT tooling to deploy and test software patches

• Configuration of Network equipment -Have the knowledge of configuring the different types of network equipment

• Supporting the wider SOS team -Providing support to the wider team, assisting where needed and mentoring to share knowledge and upskill less experienced staff, provide briefing sessions and training material to aid in that process

• Assist in project work -Be the lead for new projects in developing new technologies to best meet the requirements

• Interception principles -Have an understanding of Interception of Telecommunications would be useful, even at a basic level

• Infrastructure Problem Solving -Have a basic understanding of Infrastructure to be able to problem solve network and/or server issues

• Knowledge and the working of Fortigate, CISCO and Dell firewalls -Have an in-depth understanding of the Firewall models - configuration, patching, support, fault finding and upgrading

Virtual Open Evening Event

To find out more about the role and the application process we will be holding a virtual opening evening via MS Teams on Wednesday, 22nd October 2025 at 6:00 p.m.

This event is by invitation only. To register, please click on the following link

Please note, you will be asked for your name and email address. The registration will close on Sunday, 19 October 2025 at 11:00 p.m.

You will not be able to register after this date and time.