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Amentum will 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 and diverse 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. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.

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

Are you a talented and ambitious individual looking to further your career in Reactor Physics?

Amentum is currently recruiting for a Reactor Physicist to perform complex technical analyses, deliver technical training, and support the theoretical development of our software and nuclear data products.

The nuclear industry is moving away from traditional reactor designs towards new small modular reactor (SMR) and advanced modular reactor (AMR) designs, with improved safety features and lower build costs. These new concepts bring exciting modelling challenges requiring innovative mathematics, physics, engineering, and software engineering techniques.

We seek an enthusiastic and innovative physicist to work across various technical teams analyzing established and cutting-edge reactor designs.

This role offers excellent opportunities for skill and experience development in physics, especially as applied to nuclear engineering, with potential leadership in technical developments and collaborations.

The role is based at our Dorchester office, with travel to client sites as needed. Remote and flexible working arrangements are also considered.

Key Responsibilities:

1. Develop mathematical and physical theories
2. Perform complex reactor physics analysis
3. Deliver technical training to specialists
4. Develop and refine theoretical models and simulations
5. Present results at technical meetings and conferences
6. Engage with the international academic community
7. Generate new business through interactions with international clients

Qualifications:

• Undergraduate degree in mathematics, physics, engineering, or related fields with a strong mathematical component
• Strong background in mathematical and physical theories and their implementation
• Programming skills in Fortran, Python, Java, or similar
• Innovative thinking and problem-solving skills to address complex technical challenges
• Self-motivated with a passion for nuclear physics
• Ability to work independently and collaboratively