Senior Technical Support Officer

Dyddiad hysbysebu:	01 Rhagfyr 2025
Cyflog:	£51,166 bob blwyddyn
Gwybodaeth ychwanegol am y cyflog:	Salary starting at £51,166
Oriau:	Llawn Amser
Dyddiad cau:	22 Rhagfyr 2025
Lleoliad:	Sellafield, Cumbria, Cumbria, CA20 1PG
Cwmni:	National Nuclear Laboratory Limited
Math o swydd:	Parhaol
Cyfeirnod swydd:	NNL/TP/34863/2401_1764603078

Crynodeb

Summary

Job Description for Senior Technical Support Officer (Nuclear Material Custodian, Nuclear Material Accountant):

There's never been a more exciting time to be part of the nuclear sector. New opportunities are being created all the time. At UKNNL, you'll be in the ideal place to capitalise on this momentum, face new challenges and develop a long, successful and meaningful career.

We're an organisation that's here to experiment and push the limits of what's possible. So, if you're keen to excel in your chosen field, this is the place to do it. Because at UKNNL, anything is possible.

The Senior Technical Support Officer (STSO) will maintain UKNNL's Nuclear Material Accountancy, Control, Safeguards (NMACS) arrangements in support of UKNNL project delivery at the Central and Windscale Laboratories and in accordance with legislation and site licence conditions.

Emphasis is on the smooth delivery of the NMACS in support of day-to-day operations and the key receipts and dispatches of material, with the aim of a successful annual verification.

In addition, they will be expected to lead on UKNNL's response to regulatory inspections, oversee the direction of the team and deputise for the Technical Support Manager. They will be expected to be appointed as a Nuclear Material Custodian, Nuclear Material Accountant and Nuclear Material Control Officer amongst other roles required to sustain Central and Windscale Laboratory NMACS function.

Main Responsibilities for Senior Technical Support Officer (Nuclear Material Custodian, Nuclear Material Accountant):

• To act as subject matter expert in matter relating to the Nuclear Material Accountancy, Control, Safeguards (NMACS) arrangements for UKNNL Central and Windscale Laboratory.
• Responsible for the delivery, maintenance, and development of NMACS arrangements as written in the Basic Technical Characteristics (BTC), Accountancy and Control Plan (ACP), UKNNL procedures and process.
• To lead upon inspections against UKNNL Central and Windscale Laboratory NMACS arrangements by regulators, internal assurance, site licence operator, or other external bodies.
• To monitor NMACS performance within their MBA (Material Balance Area), report upon findings, and continuously improve NMACS systems so that they are reliable, resilient, and sustainable.
• To make adequate provision for the coaching, mentoring, and training of all personnel within their MBA whose roles may impact on NMACS, so that they understand the importance of NMACS in the pursuit of their responsibilities.
• To lead all colleagues in the correct application of NMACS arrangements within the MBA.
• To liaise with UKNNL project teams, Sellafield Site functions, and all others who are influence NMACS or require NMACS arrangements.
• To lead on the reporting, investigation, and corrective action of NMACS anomalies or discrepancies.

Essential Criteria for Senior Technical Support Officer (Nuclear Material Custodian, Nuclear Material Accountant):

• Proven record of establishing, managing and maintaining policy and procedure.
• Candidates must be capable of handling manual and computer data accurately with attention to detail.
• Candidate must be capable of leading interaction with the Office for Nuclear Regulation.
• GCSE or equivalent in Maths and English.
• Good IT skills especially for databases and word processing.
• Good communication skills.
• Good record keeping skills.
• Logical and methodical approach to data processing and analysis.
• Ability to obtain DV level security clearance (this includes but is not limited to identity, employment, financial, criminal record checks, interview plus 10 years of UK residency).

Desirable Criteria for Senior Technical Support Officer (Nuclear Material Custodian, Nuclear Material Accountant):

• Understanding of Nuclear Site License requirements.
• Competency or understanding in basic Criticality Safety and Nuclear Material Control.
• Basic understanding of software systems and their operation.
• APM Project Fundamentals Qualification (PFQ).
• IOSH Managing Safely.