Vacancies

17 jobs available

Site Engineering Summer Placement Programme 2026

Closing date: 02/11/2025 View

Role area Summer Placement
Salary Competitive
Location Sellafield West Cumbria

About the role

Looking for a placement where you’ll really feel valued? At Sellafield Ltd, you’ll be a part of one of the UK’s most significant missions – safely managing the nation’s nuclear legacy and building a cleaner, safer future. With decades of projects ahead, this is your chance to gain experience at a company where purpose and development go hand in hand.

Our Summer Placement programme is comprised of 10 weeks of development. You’ll work on projects that might be a first in the nuclear industry where you can really make a difference, working with industry leading engineers. There’s no blueprint for the work we do – that’s why we need you. You’ll receive dedicated support throughout your placement, and by the end you could be rewarded with a conditional offer on our graduate programme for the year you graduate. You can start to build professional networks and pave your own path to success. You’ll gain real experience, working on live projects alongside industry experts. We don’t just look to build your technical skills, we’ll help you develop those personal and professional skills that can make you stand out from the crowd. You’ll be supported by experienced colleagues who truly want to see you succeed. A placement with us means contributing to work that truly matters for the UK’s sustainable nuclear future. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. We’re looking for students to join our Engineering & Maintenance profession in 2026. To read more about them, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ On track to achieve a minimum of a 2:1 Bachelors degree...

Science & Maths Summer Placement Programme 2026

Closing date: 02/11/2025 View

Role area Summer Placement
Salary Competitive
Location Sellafield West Cumbria

About the role

Looking for a placement where you’ll really feel valued? At Sellafield Ltd, you’ll be a part of one of the UK’s most significant missions – safely managing the nation’s nuclear legacy and building a cleaner, safer future. With decades of projects ahead, this is your chance to gain experience at a company where purpose and development go hand in hand.

Our Summer Placement programme is comprised of 10 weeks of development. You’ll work on projects that might be a first in the nuclear industry where you can really make a difference, working with industry leading scientists. There’s no blueprint for the work we do – that’s why we need you. You’ll receive dedicated support throughout your placement, and by the end you could be rewarded with a conditional offer on our graduate programme for the year you graduate. You can start to build professional networks and pave your own path to success. Science & Maths students will join our Technical profession. You’ll gain real experience, working on live projects alongside industry experts. We don’t just look to build your technical skills, we’ll help you develop those personal and professional skills that can make you stand out from the crowd. You’ll be supported by experienced colleagues who truly want to see you succeed. A placement with us means contributing to work that truly matters for the UK’s sustainable nuclear future. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. To read more about Technical, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ On track to achieve a minimum of a 2:1 Bachelors degree in a science or...

Radiometric Physicist

Closing date: 02/11/2025 View

Role area Technical
Salary £55,425 - £60,596
Location Sellafield West Cumbria
Closing date: 02/11/2025

About the role

The Sellafield site is one of the most iconic nuclear sites in the world and the birthplace of the UK’s nuclear industry. We have supported national defence, generated electricity for nearly half a century, and the environment now sits at the heart of our purpose. With 100 years of work ahead of us, we are yet again at the forefront of developing innovative solutions, through setting international standards in high hazard nuclear waste management. The work is diverse, no problem is ever the same, and every project offers a wide variety of technical challenges. At Sellafield, we are dealing with uncertainties, challenging technical problems, whilst operating within a complex and highly regulated environment. Come join and contribute to Sellafield’s exciting new era in leading the way in creating a clean and safe environment for future generations.

We are seeking talented Physicists looking to develop a specialist career within our Radiometric Systems Group Characterisation team. The team provide specialist nuclear physics support across a range of radiometric Characterisation projects and to Nuclear Material Assay operations across site. Characterisation projects utilise portable specialist assay equipment that can be deployed in-situ to allow delivery of complex radiological characterisation services. NMA systems provide accurate measurement and quantification of radioactive materials and utilise a wide range of radiometric physics techniques. We invest heavily in our people and offer a variety of training and career pathways to truly develop our staff and support them to become true experts in their field. We are working on the biggest decommissioning site in Europe, meaning that the scope and variety of work is truly incredible. We’re looking for a variety of backgrounds and experience to support us with our Mission. Whether you have a PhD in a subject area with a nuclear bias, or possibly have developed an interest in modelling or general characterisation work following a BSc/MSc in Physics, Chemistry or Maths… whichever route you have come from, we’d love to hear from you! To give you a flavour of typical tasks you would be trained in and expected to undertake within the role: Analyse complex data sets using commercially available software tools and self-developed mathematical models/spreadsheets. Technical report writing. Communicate technical work scope verbally in a confident and authoritative manner to a range of stakeholders at all levels. Development...

Closing date: 02/11/2025

Security Architect

Closing date: 10/11/2025 View

Role area IT Information Services
Salary £55,425 - £78,912
Location Sellafield or Risley
Closing date: 10/11/2025

About the role

Location: Warrington or West Cumbria, with flexible working options available. At Sellafield Ltd, we are harnessing our expertise; bringing together world-class skills and innovative technology to solve complex nuclear, infrastructure, and engineering challenges. By joining Sellafield Ltd, you join an amazing team of people, from all walks of life, where you can thrive in a connected, considerate culture of innovation, collaboration, and community; and play a significant part in the UK's sustainable nuclear future.​ The challenges we face are amongst the most complex anywhere in the world. We are using advanced technologies to shape, create and advance the world’s nuclear decommissioning knowledge and capability. That’s why our work is driven by people with a passion for problem-solving and innovation.

We are seeking Architects of varying levels levels of experience, who are looking to develop a specialist career in Cyber. These roles sit within a maturing cyber security function in a highly regulated, safety and mission critical environment here at Sellafield. We are looking to recruit talented and passionate Architects who are looking to make a real impact in developing cyber capabilities in-house. The Security Architects will take responsibility for ensuring that cyber security is embedded by design into Digital, Enterprise, and Operational Technology systems. The roles will support the development and implementation of security architectures and standards across the organisation, delivering expert technical input and advising projects and programmes to reduce cyber security risk. Working across the three areas (Enterprise, Security, and OT), these roles will provide critical input to protect sensitive systems, data, and infrastructure in a nuclear-regulated environment. We are looking for a variety of skills to support us with our Mission, so whether you are a seasoned Security Architect or have a background in Solutions or Network Architecture with some understanding of cyber security and experience of working in regulated environments, we’d love to hear from you! We invest heavily in our people and offer a variety of training / career pathways to truly develop our staff supporting them to become true experts in their field, and we are working on the biggest decommissioning site in Europe, meaning that the scope and variety of work is truly incredible. Support the development and implementation of security...

Closing date: 10/11/2025

Ventilation Engineer

Closing date: 12/11/2025 View

Role area Engineering & Maintenance
Salary £49,239 - £55,425
Location Sellafield West Cumbria
Closing date: 12/11/2025

About the role

Further salary progression available subject to performance in role Bonus: Up to 10% base salary per annum, based on achievement of Company targets and personal performance. Working Pattern: Days (37 hours per week, typical hours are 07:30 – 15:40 or 08:10 – 16:20) Location: Sellafield, West Cumbria.

Role Purpose: To provide specialist Ventilation technical engineering support and investigative expertise in support of the Sellafield Ventilation Technical Specialist Group, an Enterprise-wide Ventilation specialist team that is responsible for Engineering support activities to the facility. The Engineer develops and maintains expertise on ventilation equipment and uses this knowledge to ensure that the overall performance, safety, condition and associated documentation of assigned equipment are maintained to a high standard. You must have the ability to work under pressure and remain decisive. Deliverables: To provide technical support & investigative expertise in support of new and existing ventilation systems. To undertake ventilation asset condition and system health performance inspections, in line with the ventilation asset maintenance/management inspection programme. Provide ventilation and HEPA filter commissioning support service to the Sellafield site. Providing expertise to ensure ventilation systems are fit for purpose and meet current standards. Working closely with Plant & Reliability Engineers from across the business to manage the ventilation assets efficiently and effectively. Follow the company Standards & Expectations. Provide a professional service to all customers. Maintain compliance with all site safety rules, procedures & instructions. Ensure safety is maintained through appropriate training. Knowledge & Experience: Higher level qualification or equivalent training/experience in an engineering/maintenance discipline. Experience of working at height and in confined spaces. SC (Security Check) level Security Clearance, or the ability to achieve. Chartered/Incorporated Engineer status or potential to achieve accreditation to an appropriate professional institute...

Closing date: 12/11/2025

Site Engineering Graduate Programme 2026

Closing date: 02/11/2025 View

Role area Graduate
Salary £42,248
Location Sellafield West Cumbria

About the role

Are you ready to start your career somewhere that you can make an impact from the very start of your career? At Sellafield Ltd, we’re not just offering you a job – we’re offering you the chance to be a part of one of the UK’s most significant missions. Sellafield is the only site in the country that can safely manage all forms of nuclear waste, with our teams finding new ways to ensure it is kept safe until a permanent disposal facility is ready. We are also guardians of the UK’s largest stockpile of nuclear materials. In the past, we have been responsible for breakthroughs such as the world’s first full-scale commercial nuclear power station, and today we are helping to keep lights on across the UK by safely receiving and storing spent nuclear fuel from the UK’s fleet of power stations.

Our Graduate programme is comprised of 2 years of structured development. You’ll rotate through real projects that are a first in the nuclear industry where you can really make a difference, working with industry leading engineers. There’s no blueprint for the work we do – that’s why we need you. You’ll receive support from a dedicated mentor during your graduate programme and onto your chartership journey. By the end of the 2 years you’ll have built the skills, confidence, and networks to take your career to the next level. At Sellafield Ltd there’s decades of opportunity over next 100 years and beyond. The scale of this once-in-a-lifetime undertaking gives our people unprecedented freedom. We need a workforce who are ready to be world-leading experts in shaping the UK’s sustainable nuclear future. We can offer you training, further qualifications, and clear career progression to support you in accelerating your career. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. We’re looking for graduates to join our Engineering & Maintenance, Commissioning, and Construction professions in 2026. To read more about each of these areas, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ A minimum of a 2:1 Bachelors degree in Electrical Engineering, Mechanical Engineering or Chemical Engineering based...

Civil Design Engineering Summer Placement Programme 2026

Closing date: 02/11/2025 View

Role area Summer Placement
Salary Competitive
Location Risley Warrington

About the role

Looking for a placement where you’ll really feel valued? At Sellafield Ltd, you’ll be a part of one of the UK’s most significant missions – safely managing the nation’s nuclear legacy and building a cleaner, safer future. With decades of projects ahead, this is your chance to gain experience at a company where purpose and development go hand in hand.

Our Summer Placement programme is comprised of 10 weeks of development. You’ll work on projects that might be a first in the nuclear industry where you can really make a difference, working with industry leading engineers. There’s no blueprint for the work we do – that’s why we need you. You’ll receive dedicated support throughout your placement, and by the end you could be rewarded with a conditional offer on our graduate programme for the year you graduate. You can start to build professional networks and pave your own path to success. You’ll gain real experience, working on live projects alongside industry experts. We don’t just look to build your technical skills, we’ll help you develop those personal and professional skills that can make you stand out from the crowd. You’ll be supported by experienced colleagues who truly want to see you succeed. A placement with us means contributing to work that truly matters for the UK’s sustainable nuclear future. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. To read more about our Design Engineering profession, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ On track to achieve a minimum of a 2:1 Bachelors or Masters degree in a Civil Engineering based subject Curious,...

Science & Maths Graduate Programme 2026

Closing date: 02/11/2025 View

Role area Graduate
Salary £42,248
Location Sellafield West Cumbria

About the role

Are you ready to start your career somewhere that you can make an impact from the very start of your career? At Sellafield Ltd, we’re not just offering you a job – we’re offering you the chance to be a part of one of the UK’s most significant missions. Sellafield is the only site in the country that can safely manage all forms of nuclear waste, with our teams finding new ways to ensure it is kept safe until a permanent disposal facility is ready. We are also guardians of the UK’s largest stockpile of nuclear materials. In the past, we have been responsible for breakthroughs such as the world’s first full-scale commercial nuclear power station, and today we are helping to keep lights on across the UK by safely receiving and storing spent nuclear fuel from the UK’s fleet of power stations.

Our Graduate programme is comprised of 2 years of structured development. You’ll rotate through real projects that are a first in the nuclear industry where you can really make a difference, working with industry leading scientists. There’s no blueprint for the work we do – that’s why we need you. You’ll receive support from a dedicated mentor during your graduate programme and onto your chartership journey. By the end of the 2 years you’ll have built the skills, confidence, and networks to take your career to the next level. At Sellafield Ltd there’s decades of opportunity over next 100 years and beyond. The scale of this once-in-a-lifetime undertaking gives our people unprecedented freedom. We need a workforce who are ready to be world-leading experts in shaping the UK’s sustainable nuclear future. We can offer you training, further qualifications, and clear career progression to support you in accelerating your career. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. Science & Maths graduates will join our Technical profession. To read more about Technical, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ A minimum of a 2:1 Bachelors degree in Chemistry, Chemical Engineering or Physics based subjects A willingness to relocate to West Cumbria Curiosity, ambition,...

Design Engineering Graduate Programme 2026

Closing date: 02/11/2025 View

Role area Graduate
Salary £42,248
Location Risley Warrington

About the role

Are you ready to start your career somewhere that you can make an impact from the very start of your career? At Sellafield Ltd, we’re not just offering you a job – we’re offering you the chance to be a part of one of the UK’s most significant missions. Sellafield is the only site in the country that can safely manage all forms of nuclear waste, with our teams finding new ways to ensure it is kept safe until a permanent disposal facility is ready. We are also guardians of the UK’s largest stockpile of nuclear materials. In the past, we have been responsible for breakthroughs such as the world’s first full-scale commercial nuclear power station, and today we are helping to keep lights on across the UK by safely receiving and storing spent nuclear fuel from the UK’s fleet of power stations.

Our Graduate programme is comprised of 2 years of structured development. You’ll rotate through real projects that are a first in the nuclear industry where you can really make a difference, working with industry leading engineers. There’s no blueprint for the work we do – that’s why we need you. You’ll receive support from a dedicated mentor during your graduate programme and onto your chartership journey. By the end of the 2 years you’ll have built the skills, confidence, and networks to take your career to the next level. At Sellafield Ltd there’s decades of opportunity over next 100 years and beyond. The scale of this once-in-a-lifetime undertaking gives our people unprecedented freedom. We need a workforce who are ready to be world-leading experts in shaping the UK’s sustainable nuclear future. We can offer you training, further qualifications, and clear career progression to support you in accelerating your career. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. To read more about our Design Engineering profession, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ A minimum of a 2:1 Bachelors degree in Electrical Engineering based subjects A minimum of a 2:1 Masters degree in Civil Engineering, Mechanical Engineering, and a minimum of 2:1 Batchelors degree...

Environmental Graduate Programme 2026

Closing date: 02/11/2025 View

Role area Graduate
Salary £42,248
Location Sellafield West Cumbria

About the role

Are you ready to start your career somewhere that you can make an impact from the very start of your career? At Sellafield Ltd, we’re not just offering you a job – we’re offering you the chance to be a part of one of the UK’s most significant missions. Sellafield is the only site in the country that can safely manage all forms of nuclear waste, with our teams finding new ways to ensure it is kept safe until a permanent disposal facility is ready. We are also guardians of the UK’s largest stockpile of nuclear materials. In the past, we have been responsible for breakthroughs such as the world’s first full-scale commercial nuclear power station, and today we are helping to keep lights on across the UK by safely receiving and storing spent nuclear fuel from the UK’s fleet of power stations.

Our Graduate programme is comprised of 2 years of structured development. You’ll rotate through real projects that are a first in the nuclear industry where you can really make a difference, working with industry leading environmental scientists. There’s no blueprint for the work we do – that’s why we need you. You’ll receive support from a dedicated mentor during your graduate programme and onto your chartership journey. By the end of the 2 years you’ll have built the skills, confidence, and networks to take your career to the next level. At Sellafield Ltd there’s decades of opportunity over next 100 years and beyond. The scale of this once-in-a-lifetime undertaking gives our people unprecedented freedom. We need a workforce who are ready to be world-leading experts in shaping the UK’s sustainable nuclear future. We can offer you training, further qualifications, and clear career progression to support you in accelerating your career. You can really make an impact, helping to protect our site and communities today and being a part of creating the future of our tomorrow. We’re an organisation with a clear purpose. Join 12,000 people united by one purpose – to create a clean and safe environment for future generations. To read more about our Environmental profession, head to their section on our programme areas page: https://careers.sellafieldsite.co.uk/graduates-placements/graduates/programme-areas/ A minimum of a 2:1 Bachelors degree in an Environmental based subject. Chemistry and other science based degrees will also be considered A willingness to relocate to West Cumbria Curiosity,...

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