Job Description

Candidates will be responsible for leading the definition, assurance and delivery of sustainable Nuclear Ventilation & Building Services design solutions that meet the functional and business requirements across all areas within SL.

The role requires individuals that are comfortable working within a multi-disciplined team environment and are able to achieve through collaboration. Being able to recognise stakeholders and actively engaging with them is also key to success.

In supporting the above, candidates will be expected to both lead and develop other staff within this discipline.

Additionally, there will also be opportunities to contribute and use your experience in developing and improving sector specific standards and guidance.

Mentoring and development will be given to candidates to help support their progress in the business.

Principal Accountabilities

The candidate will be accountable for the design of Nuclear Ventilation & Building Services systems. This would also include specification and selection of plant & equipment. Support through manufacture, installation, commissioning, and operational phases (as well as design). Technical advice when needed across the business and support to assurance activities. The candidate will at times be accountable for supervising others delivering work in this area and the development of specialist staff.

Knowledge & Experience

The candidates would ideally be degree qualified in Building Services, Architectural or Environmental Engineering. They will either be Chartered Engineers with or working towards Chartered status.

Applicants with Mechanical Engineering or other STEM qualifications and experience in the Building Services industry are welcome, as are candidates who have additional qualifications (e.g. specialist Building Services MSc) and experience in the Building Services industry.

Applicants without a degree but with Technical Qualifications will be considered.

Essential Skills

Able to demonstrate delivery experience in design & specification of HVAC & Building Services systems, plant and equipment.

Through gaining this experience, your career will have progressed to a point where you have also gained a broad understanding of the needs of other engineering and construction professionals and have the necessary technical & personal skills to be effective in an integrated team.

In addition to problem solving capabilities in design, candidates would be familiar with creatively solving problems associated with manufacture, installation and operation of these systems.

They will be comfortable with giving authoritative technical advice in this area, together with any necessary engineering justification. Your communication skills would allow clear understanding of concepts and solutions to other technical and non-technical colleagues.

The nature of the role requires candidates with skills in team leadership as well as coaching and development of others.

As a function lead for this discipline, you would have the necessary skills & experience to advise your projects on programme and cost.

Additional Information

• Open VN
• Number of Vacancies: 1
• Contact/s: Robert Scattergood

The interviews for this vacancy are expected to be week commencing 23rd February 2026.

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.

If you choose to apply for this role and your application is shortlisted by the hiring manager, you will be invited to a competency based interview. In the interview, you will be assessed against the below competencies:

Behavioural:
1. Commitment to nuclear safety and security
2. Holding self and others to account
3. Problem solving

Technical:
1. Delivery of engineering Solutions
2. Management of safety

Please see link to the competency framework for further information:
https://slportal.ssa-intra.net/pub/SC001/00027/Competency%20Framework/Forms/AllItems.aspx

If your technical competency is not in the above framework, please refer to the profession’s share point page for further information.

During the interview, you will also be expected to give a 10 minute presentation on
‘Please describe the main technical issues that you would expect to encounter on delivering the design of Nuclear Ventilation systems at Sellafield. For each issue please also highlight your main interface points in the design process (where you would get information from and who you would be providing output information to) to enable design delivery’.

The presentation may focus on new build, refurbishment, or asset management (or all 3) to cover all candidates’ experience. Please make clear at the start of the presentation if you have a specific focus area.

This presentation should be sent to recruitment@sellafieldcloud.co.uk via email at least two working days before your interview. You should also take four paper copies of your presentation to your interview in case of any IT issues on the day.

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.

The closing date for this vacancy is 8th February 2026.