National Nuclear Laboratory

Internal Vacancies

UKNNL has a vision for Equality, Diversity and Inclusivity (ED&I) which aims to be an inclusive workplace that attracts diverse talent through transparent and equal policies and procedures. We want you and the diverse mix of people that we employ, customers that we service and stakeholders that we influence to feel valued. We encourage a workplace culture where everyone can thrive with a sense of belonging.

All of our current vacancies can be found on this page. You can also find more information at https://jobsearch.uknnl.com

Total internal jobs: 7

Head of Security Consulting and Architecture

Category: CISO

Salary: Salary starting at £84,549

Closing Date: 2025-11-19

Location: Risley, Cheshire

The salary range for this position is £84,549 to £91,977 (Grade 3A).

If you have any queries regarding the position itself please contact Adam Brooks.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Instrument Technician

Category: Infrastructure & Compliance

Salary: Salary from £40,991 to £49,419 inc. allowances

Closing Date: 2025-12-12

Location: Preston, Lancashire

The salary range for this position is £40,991 to £43,108 (Grade 5A).

If you have any queries regarding the position itself please contact Andrew Parkinson.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Electrical Technical Support

Category: EHSS&Q & Compliance

Salary: Salary starting at £51,166

Closing Date: 2025-12-12

Location: Sellafield, Cumbria

The salary range for this position is £51,166 to £53,072 (Grade 4B).

If you have any queries regarding the position itself please contact Sam Walker.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Mechanical Technical Support

Category: EHSS&Q & Compliance

Salary: Salary starting at £51,166

Closing Date: 2025-12-12

Location: Sellafield, Cumbria

The salary range for this position is £51,166 to £53,072 (Grade 4B).

If you have any queries regarding the position itself please contact Taylor Gilmour.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Mechanical Craft

Category: EHSS&Q & Compliance

Salary: Salary from £40,991 - £49,419 inc. allowances

Closing Date: 2025-12-12

Location: Sellafield, Cumbria

The salary range for this position is £40,991 to £43,108 (Grade 5A).

If you have any queries regarding the position itself please contact Josh Brenan.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Electrician

Category: Infrastructure & Compliance

Salary: Salary from £40,991 to £43,108 plus allowances

Closing Date: 2025-11-17

Location: Preston

The salary range for this position is £40,991 to £43,108 plus active area allowances (Grade 5A)

If you have any queries regarding the position itself please contact Andrew Parkinson.

Please be aware that all new appointments will be made in-line with the PLC '˜New'™ terms & conditions. Therefore, if you are not already on PLC '˜New'™ terms & conditions and you are selected and accept this role, there will be changes made to your contractual terms. The terms and conditions of the role will be made clear in the offer letter. 

If you have any queries about the impact of applying for this role on your terms & conditions, pay, pension or benefits, please contact the HR Support Team.

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Maintenance Electrician

Category: EHSS&Q & Compliance

Salary: Salary from £40,991 - £49,419 inc allowances

Closing Date: 2025-12-12

Location: Sellafield, Cumbria

The salary range for this position is £40,991 to £49,419 including allowances (Grade 5A)

If you have any queries regarding the position itself please contact Adam Oxley / Matthew Wojcik

If you have any queries about the impact to your pay and/or pension benefits, by applying for this position, please contact the HR Support Team

Job Description

As a Maintenance Electrician at UKNNL you will be performing routine maintenance on a wide range of Electrical and Instrumentation plant systems. You will also carry out project work, breakdown repairs and safe isolations.

To hear more from a member of the team click here.

Exciting news! UKNNL is piloting a 4-day work pattern for our Compliance Engineering Maintenance Team at the Central Site. This work pattern is designed to provide our employees with greater flexibility, which in turn supports their work-life balance while maintaining our standards of service.

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