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Principal Waste Management Specialist

United Kingdom, Didcot · Job Posted May 05, 2026
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Job Description

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all. We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business. About the Opportunity We are recruiting for a Principal Waste Management Specialist to join our Radioactive Waste Management Consultancy business. Due to the rapid growth of our business in the civil nuclear waste management we require more support to deliver and continue to expand our expertise. We have a leading role in waste strategy, inventory and compliance underpinning the future management of radioactive waste, spent nuclear fuels and nuclear materials. In the UK, we deliver a diverse range of projects for waste producers, waste management organisations and strategic authorities across all aspects of the waste lifecycle. We are delivering similarly interesting and exciting projects across the globe including projects for clients in Norway, Central & Eastern Europe and Japan. We are looking to recruit a highly motivated candidate as a Principal Waste Management Specialist to play a key role in continuing the growth of our business. You will join a friendly, highly collaborative, multi-disciplinary group The candidate will be expected to lead the technical direction of work areas providing waste assessment and disposability advice to waste providers, providing input to our company waste retrievals projects and supporting disposability on behalf of waste management organisations. The vacancy provides an excellent opportunity for those wishing to develop their careers with potential to lead a growing technical area and develop a team. We are operating under flexible working arrangements, with a mixture of office-based and home working environments. The role can be based at Harwell, Cumbria, Scrabster or Birchwood and other locations will be considered.

Job Responsibility

  • Leading or providing significant input to disposability assurance activities for both Higher Activity Waste and Lower Activity Waste including both the development of disposability submissions and the review of disposal cases
  • Assessment of the compliance of packaging solutions with disposal criteria and specifications
  • Technical audits of nuclear facilities or processes
  • Management of records and information
  • Management of risks and uncertainties
  • Managing technical assessments across a range of topic areas including waste package inventory, wasteform properties and expected evolution, container performance and durability, accident performance, operational, transport and post closure safety
  • Provision of strategic input to our company waste retrievals and decommissioning projects, potentially including on-site support
  • Production of high quality technical reports on the outcomes of your work and the work of others
  • Implementing efficient tools and routes for the robust management of data
  • Delivering projects relating to the safe and timely disposal of radioactive waste
  • Producing and checking calculations, analyses and interpretations
  • Leading interactions with clients and stakeholders
  • Supporting the continued development of our business through identifying, bidding for and winning new work with new or existing clients

Requirements

  • Degree qualification (or equivalent training and experience) in appropriate mathematical, physical science or engineering discipline
  • Significant experience in a comparable role
  • Ability to analyse complex data sets and models, distil the important safety features and communicate concisely with specialists and senior stakeholders
  • Numerate with excellent technical writing/reviewing skills
  • Adaptable and able to work on a variety of projects, prioritising as appropriate

What we offer

  • free single medical cover and digital GP service
  • family-friendly benefits such as enhanced parental leave pay
  • free membership of employee assistance and parental programmes
  • reimbursement towards relevant professional development and memberships

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