National Nuclear Laboratory

Current Vacancies

Principal Mechanical Engineer

Contract type:
Permanent - Full Time
Workington, Cumbria
Job Category:
Working Arrangements:
Posted on:
5th June 2024
Closing date:
26th June 2024
Job reference:
Salary starting at £64,117


Job Description for Principal Mechanical Engineer:

NNL is where your solutions solve real-world problems. As part of our Engineering team, you’ll not only be able to get involved with a huge variety of projects, you’ll also have lots of opportunity to drive them through from start to finish – allowing you to see the impact your work has in a real-world environment. This is your chance to use your experience, expertise and ingenuity to collaborate with leading scientists. You’ll be part of a team that delivers work to benefit society by advancing cleaner energy, protecting the environment and keeping everyone safe.

This role will support a varied portfolio of engineering tasks and projects in the Windscale Laboratory to ensure the facility continues to deliver for NNL’s internal and external customers. The role holder will be part of a multidiscipline team and will be expected to support the delivery of new systems / components and support the delivery of solutions to engineering problems and issues encountered on the plant during normal operations, maintenance, and breakdown phases of facility plant operations. The role holder will be expected to provide a quick response to issues on plant, providing solutions that meet the required statutory site and national safety standards, comply with NNL’s integrated management system, and meet customer expectations to reduce plant downtime to a minimum. The role supports engineering delivery work tasks at NNL’s Windscale Laboratory and will include engineering development / testing work at NNL’s Workington Facility.

The role holder can therefore be based at Windscale or Workington (to be decided at interview) and will include hybrid working (split between office and home working).

Main Responsibilities

Main Responsibilities for Principal Mechanical Engineer:

  • To the Engineering Manager for:
    • Ensuring control, delivery and reporting of the specified work scope to agreed project function, cost and schedule.
    • Eensuring that design solutions are fit for purpose, integrated & optimised, affordable and meet functional specification and execution plan.
    • Ensuring functional technical, safety and engineering risks are identified.
  • To the Discipline Lead Engineer for:
    • Ensuring appropriate and adequate design standards and practices are deployed and deliverables and solutions generated are safe, legal and adequately underpinned.
    • Ensuring competent, SQEP people are deployed in functional work and periodic forecasting of resources are accurate and timely.
    • Ensuring that appropriate design review activities are performed in a timely manner.
    • Ensuring subject matter experts are appropriately and adequately engaged in a timely manner and LFE captured, disseminated and utilised.
  • To Head of Engineering for:
    • Ensuring solutions meet agreed performance demands and documents define and preserve the design intent and are organised and align with the plant configuration.
    • Ensuring all necessary documentation is generated to meet safety and legal requirements that enable receipt on nuclear licensed site, installation, commissioning and taking into service of plant and equipment.

Ideal Candidate

Essential Criteria for Principal Mechanical Engineer:

  • Degree / HND / HNC in an Engineering discipline or closely related subject together with a good level of discipline design and design office experience.
  • Proven knowledge and experience following an accredited design / engineering process to deliver an assured design / system that meets all required statutory site and national safety standards. Including a working knowledge of the requirements of PUWER and CE / UKCA marking.
  • Proven knowledge and experience using AutoCAD and 3D CAD software such as Inventor, Solidworks, Vault, together with Microsoft Office applications to provide fit for purpose engineered solutions.
  • Proven knowledge and experience of using the EU directives, British Standards and company standards and procedures.
  • Excellent verbal and written communication skills, to enable fit for purpose engineered solutions, ideas, and concepts to be clearly communicated to customers, regulators, and key stakeholders.
  • Chartered Engineer preferred, minimum Incorporated Engineer, although equivalent experience will be taken onto consideration.
  • Proven knowledge and experience in system and component fault finding in operational active and non-active nuclear facilities, preferable on the Sellafield site. This role is to provide fit for purpose engineered options and solutions from design and procurement through to return to operations to limit the time equipment is out of service due to faults, breakdowns or malfunctions. The Windscale Laboratory is focused on safely delivering customers scopes of work to agreed schedules, this role will support that objective and be expected to proactively reduce the likelihood of non-delivery of customers scopes of work.
  • Proven knowledge and experience in leading multi-discipline Engineering Design teams in the design, build, testing, installation, and commissioning of new plant systems and components, and modifications to existing systems and components. Examples of systems and components to be supported are mechanical handling / operating equipment, mechanical safety systems, compressed air, water, and ventilation systems.
  • Ability to obtain SC level security clearance (this includes but is not limited to identity, employment, financial and criminal record checks plus 5 years’ worth of UK residency).

Desirable Criteria for Principal Mechanical Engineer:

  • Experience working in the nuclear sector preferable on the Sellafield site, with a working knowledge of Sellafield Site Procedures, Engineering Standards and Site License Conditions.
  • Proven knowledge and experience of using Sellafield Ltd Engineering Standards in the design process and the Sellafield site drawing registry, CIMAGE.
  • Knowledge and experience in producing mechanical and structural calculations to relevant industry design standards ie EU directives, British Standards.
  • Knowledge and experience in the substantiation of mechanical equipment designated as safety equipment in a safety case to Sellafield Engineering Standards and produce substantiation reports to substantiate that equipment to the relevant standard.
  • Knowledge and experience writing or supporting the production of Plant Modification Proposals (PMP’s) to modify equipment and plant on the Sellafield site.

About the company

NNL is an incredible place to work. A place where people do things that have never been done before. A place where people push boundaries to further themselves, the business and society as a whole.

This is a place where personal and professional opportunities are limitless. If you want to change the world, if you want to tackle climate change, if you want to help advance medical science, if you want to help put things in space, if you want to answer the big questions, if you want to work with extraordinary materials, if you want to meet great people, learn new skills, challenge yourself, work flexibly, and build a long successful career with the power to make a real impact… you can do it all here.

NNL has a vision for Equality, Diversity and Inclusivity (ED&I) where NNL aims to be an inclusive workplace that attracts diverse talent through transparent and equal policies and procedures. We want you and the diverse mix of people that we employ, customers that we service and stakeholders that we influence to feel valued. We encourage a workplace culture where everyone can thrive with a sense of belonging.

Recruitment Agency Notice

We operate a strict Preferred Supplier List (PSL) for the provision of recruitment services. Only agencies on our PSL may provide CVs and only when the role is released to them by our recruitment team. We will not accept unsolicited CVs from suppliers not currently on our PSL. We explicitly reserve the right to add candidate details from unsolicited CVs from non-PSL agencies into our own candidate database and to pursue/hire such candidate(s) without any obligation, financial or otherwise, to the agency concerned.