Senior Criticality Safety Engineer

AtkinsRéalis; Sheffield; On-site; GBP 50,000 - 75,000; Full time

Job summary

AtkinsRéalis seeks a Senior Criticality Safety Engineer to lead nuclear safety initiatives. This role involves designing complex schemes, developing criticality assessments, and working in regulated environments to ensure safety processes. Ideal candidates will hold a relevant degree and have proven experience with radiation transport codes.

Benefits

Flexible benefits

Diverse and inclusive environment

Opportunities for professional growth

Qualifications

• Proven experience in criticality assessments and safety documentation.
• Experience with radiation transport codes like MCNP, MONK, SCALE.

Responsibilities

• Developing criticality assessments and associated documentation.
• Utilising industry-recognised radiation transport codes.
• Contributing to safety culture and bid proposals.

Skills

Leadership

Teamwork

Education

Degree in physics, chemistry, mechanical, chemical, or process engineering

Tools

MCNP

MONK

SCALE

Job description

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Senior Criticality Safety Engineer, Sheffield

Location: Sheffield, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Reference: 667fd709471f

Job Views: 21

Posted: 22.06.2025

Expiry Date: 06.08.2025

Job Description:

Take the lead in global nuclear safety.

Join us as a Senior Criticality Safety Engineer in our Nuclear & Power Division, and play a vital role designing complex new schemes to protect our clients' assets. You'll support delivery on client projects across various stages, working within highly regulated nuclear environments, leading multidisciplinary teams, and enhancing safety processes.

Your responsibilities include:

• Developing criticality assessments and associated documentation
• Utilising industry-recognised radiation transport codes
• Contributing to safety culture and bid proposals

Qualifications and skills:

• Degree in physics, chemistry, mechanical, chemical, or process engineering
• Experience with radiation transport codes like MCNP, MONK, SCALE
• Proven experience in criticality assessments and safety documentation
• Leadership and teamwork skills

Why work for AtkinsRéalis?

We are committed to a sustainable future, supporting energy projects that promote Net Zero by 2050. We offer flexible benefits, a diverse and inclusive environment, and opportunities for professional growth.

Additional information:

This role may require security clearance, dependent on UKSV vetting. We promote diversity and inclusion and welcome applications from all backgrounds.