Principal Mechanical Engineer

Role: Principal Mechanical Engineer
Location: Plymouth
Duration: 12 months
Rate: negotiable
Inside IR35 Umbrella

Our client is a leading global aerospace, defense, and security company specializing in delivering complex, mission-critical solutions. With a strong heritage in engineering and innovation, they provide essential services across aviation, marine, land, and nuclear sectors, supporting governments, armed forces, and commercial clients worldwide. Renowned for their commitment to safety, sustainability, and technological advancement, our client plays a vital role in ensuring operational excellence for their customers. Join them and be part of a team that drives innovation and delivers cutting-edge solutions in some of the world's most demanding environments.

Primary Purpose

To assist the Discipline Lead in delivery of the mechanical services engineering work packages to the required scope, quality, schedule and cost.

Responsible for managing the technical deliverables of the mechanical services engineering packages in line with the planned deliverables agreed by the Discipline Lead.

The post operates as part of the Major Infrastructure Projects Business Unit.

Principal Tasks and Responsibilities

• Within SQEP profile, preparing and/or checking designs, analyses, reports, drawings, specifications and other documents in support of Nuclear and Non-Nuclear related plant, facility and equipment within the company's licensed, authorised and operational sites, or in support of external contracts.
• Participate in the problem solving for development of technical solutions to deficiencies or in the development of new designs.
• Support the review and sentencing of new designs, methodology of construction and temporary works submitted to the Technical Authority.
• To manage design work packages as appointed by Discipline Lead. Supporting planning of activities, with respect to task durations, level of effort and estimated costs, through to provision of design deliverables with regular schedule reviews and progress reporting, utilising Earned Value Management methodologies, and construction support.
• Make effective use of Learn from Experience information to develop and disseminate theoretical knowledge in relation to practical engineering and to maintain a record of development to substantiate the skills achieved.
• Support development, construction, installation, commissioning, operation and maintenance of Facilities to ensure that they comply with the design intent and DNSP's for Nuclear related Works, together with all relevant Local and National Regulations and Legislation.
• Support the on-site inspection of DRDL assets for their construction, maintenance and modification.
• Maintain familiarity with DRDL procedures used within Facilities Engineering.

Qualifications and Experience Requirements

• A degree in an appropriate engineering discipline.
• Chartered Engineer, registered with Engineering Council or working towards chartership.
• Design of mechanical and nuclear process systems e.g. fresh water, demineralised water
• Design of industrial gas systems e.g. low pressure air, welding gases
• Design of mechanical building services
• Design of pumping stations, including associated pipework and valves
• Design of mechanical ventilation systems
• Knowledge of seismic analysis for mechanical process equipment
• Experience of substantiation of process equipment for justification of Nuclear Safety Functions
• Sound understanding of engineering design and safety practice as relevant to post and project requirements
• Sound understanding of company and departmental procedures relating to Health and Safety, Design and quality
• The post holder must be able to demonstrate relevant knowledge and skills required in the technical management of complex design development throughout the design lifecycle
• Provide expert advice to the sub-contracted design houses to enable them to develop the design
• Sound understanding of engineering design and safety practice as relevant to discipline, post and project requirements
• Sound project specification, planning, project management and budgeting experience
• Sound understanding of Company and departmental procedures relating to Design, Health & Safety and Quality requirements, and ability to manage projects in accordance with these procedures.
• Working knowledge of relevant engineering office computer applications
• Experience of the design support to construction, operation, refit/repair of conventional and nuclear submarines and/or facilities.

If you want to work on exciting, important projects that help keep people safe, apply now!