Job Description

Expression of Interest open to Technical Profession only.

Retrieval of waste from the Magnox Swarf Storage Silo (MSSS) started in 2022 from a single compartment with one Silo Emptying machine. In the near future we aim to ramp-up the retrievals process from more waste storage compartments in the facility; using another two Silo Emptying machines. This will allow us to retrieve more waste types spread across 21 more compartments; and will require us to undertake a number of first of a kind operations and activities.

The MSSS Technical team provides technical underpinning and support to:-

• Ongoing safe storage of wastes in the MSSS facility;
• waste retrievals operations including learning from ongoing retrievals to reduce programme risks;
• transfer of wastes in skips to interim storage in line with CfA;
• preparation for new retrievals capability and operations.

In addition to developing technical expertise, the role provides excellent opportunities to raise your profile within Sellafield Ltd and the wider NDA group.

Principal Accountabilities

• Development and delivery of learning plans – ensuring required data is collected, analysed and reported to update technical baseline and develop process improvements • Support investigation and resolution of emergent issues on plant
• Support to transfer of MSSS ILW waste skips to interim storage facilities (EPS) including review and resolution of Conditions for Acceptance (CfA) issues for non-conforming skips.
• Containment monitoring through mass balance, using standard tools
• Support start of retrievals of new waste types and improvement projects

Knowledge & Experience

Essential Skills

• Demonstrated delivery of credible technical work at the appropriate grade.
• Relevant experience working with technical teams, Knowledge of Retrievals mission and challenges.
• Relevant technical qualifications, Must be numerate, articulate, and able to communicate well with Supply Chain, Stakeholders and Regulators.
• Knowledge of the Sellafield Ltd business.
• Data collection, analysis, interpretation and presentation of information.
• Writing of technical reports and papers for both technical and non-technical audiences.
• Ability to work in an active area and achieve monitored worker status

Desirable Skills

• Experience working within an operations environment.
• Experience working with external stakeholders and regulators.
• Member of relevant professional body.

Additional Information

• Contact/s: Fiona Wright, MSSS Technical Manager

The interviews for this vacancy are expected to take place w/c 20th October 2025.

If you are interested in applying, please provide an Expression of Interest detailing:

1. Why you want to join the team,
2. What you believe you could bring to the team and why you think you are suitable for the role,
3. Your current grade.

NOTE: Only individuals currently at grade are eligible to apply for this opportunity. The role will be based at Vertex with attendance at site also being required.

ASW’s may have the right to apply for internal Sellafield Ltd vacancies. Please note if you are an Agency Supplied Worker you are required to attach evidence of all qualifications obtained to support your application. We require a minimum of A*-C GCSE in English, Maths & Science/IT or equivalent / higher qualification.

Sellafield Ltd are recognised as a Disability Confident Employer (Level 3). Disability Confident employers offer an interview to disabled applicants that meet the minimum criteria for a vacancy. Sellafield Ltd define the minimum criteria as the ‘essential skills’ which are listed on the vacancy notice. Whilst completing your application form, you will be able to indicate if you wish to be considered under the disability confident scheme. If you would prefer to discuss this directly with us, please contact the GBS Recruitment team on recruitment@sellafieldcloud.co.uk.

Please ensure that you save a copy of this advert for future reference if you make an application for this role.

What we’re proud of:

MSSS Technical Baseline Lead – Expression of Interest

Job number

SP06472

Profession

Technical

Location

Sellafield West Cumbria

Contract type

Expression of Interest

Posting date

1 October 2025

Closing date

13 October 2025

Band

4A

Work Schedule

Days