Criticality Specialist

Requisition Number:  7920
Company:  Springfields Fuels Ltd

PR4 0XJ, LAN, GB, Preston

Springfields Fuels Limited is looking to recruit a trainee Nuclear Criticality Safety Assessor to join the existing Nuclear Criticality Safety function within the Site Nuclear Safety Assessment team which is part of the broader EHS function.


The successful candidate will play a vital role supporting the safe delivery by Springfields of its current business objectives and developing new business opportunities and products. Full training will be provided by attendance at external and internal courses, mentoring from existing team members, as well as practical application of learning.


Springfields has been providing nuclear fuel production services for over 70 years including all the fuel for the U.K.s first generation Magnox and current generation Advanced Gas Cooled nuclear reactor fleets.  Springfields also produces fuel for foreign pressurised water reactors as well as uranium dioxide powder for export customers.  In addition, the Site is engaged in the decommissioning of obsolete facilities and refurbishment of others.

The main aspects of the role will include:

Preparation of nuclear criticality safety assessments in support of the Periodic Safety Review Process for operational facilities across the site. These assessments are to demonstrate that existing facilities and processes continue to meet modern nuclear safety standards or identify any shortfalls and recommend appropriate remedial action;

Preparation of nuclear criticality safety assessments to support modifications to existing facilities / processes or construction of new facilities.  These assessments will be conducted as either part of the Plant Modification Process or as part of the Integrated Safety Case Process;

Providing nuclear criticality safety advice to designers, engineers and plant management in support of modifications to operating plant or design of new facilities to ensure that relevant nuclear safety standards are applied;

Interaction as required with facility Management, Engineers and other specialist personnel to derive and confirm delivery of all proposed Operational or Engineered safety requirements;

Production of underpinning reference data including the use of the MONK neutronics code;

Conducting Compliance Inspections of site facilities to ensure that nuclear safety requirements are being complied with.


The candidate will be able to demonstrate science or engineering expertise (e.g. physics, chemistry, mechanical, chemical or process engineering, Degree qualified or equivalent).  Good communication, both written and verbal, and interpersonal skills are also necessary.

Employment opportunities may require access to information which is subject to the export control regulations of the United States. Hiring decisions for such positions are required by law to be made in compliance with these regulations. Applicants for employment opportunities in other countries must be able to meet the comparable export control requirements of that country and of the United States.


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