Principal Engineer (Mechanical)

BAE Systems
Gloucestershire, Filton, England / Dorset, Weymouth, England / Frimley, England, Surrey
Closing date
2 Sep 2019

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Principal Mechanical Engineer

Would you like to play a key role in the delivery of acceptance activities for systems being integrated onto submarine platforms? We currently have a vacancy for a Principal Mechanical Engineer at any of our southern sites (Frimley, Broad Oak, Filton, Weymouth).

As a Principal Mechanical Engineer, you will be working within the Equipment Integration team. You will be responsible for the acceptance and verification of functional and non-functional requirements of cabinets containing multiple pieces of equipment that deliver various functionality of the submarine combat system. You will be reviewing acceptance evidence provided by other engineering teams to certify the product itself and to demonstrate the cabinet is suitable to be integrated onto the platform.

This role will provide you with the opportunity to be involved with a variety of equipment whilst working on a complex and exciting defence programme of national importance. You will also have the chance to bring innovation to help improve the way acceptance activities are delivered on future programmes.

Your main responsibilities as a Principal Mechanical Engineer will involve:

Managing the requirements flow for equipment for both internal and external suppliers.

Liaising with equipment suppliers in order to perform qualification, test, and requirements management aspects of integration.

Production of reports, technical specifications and statement of requirements documents and overseeing contractors carrying out the production of cabinet modification packs and integration activities.

Supporting the technical authority in this area to provide certification for safety and compliance of mechanical systems.

Supporting and reviewing shock and environmental qualification with the potential to help develop strategies and solutions for improved design performance.

Conducting acceptance activities for products submitted by internal sub‑system teams and supplier organisations which includes reviewing product level documentation, assessing this information in the context of the integrated cabinets and helping form the case for overall system compliance.

Requirements acceptance activities, which includes reviewing product level documentation from product teams, and making a case for overall system compliance.

Mentoring and assisting junior members of the team in the execution of their duties.

Your skills and qualifications:


Degree or equivalent in Mechanical Engineering or closely related discipline.

Mechanical design experience.


Knowledge of non-functional qualification activities such as shock qualification or thermal management

Knowledge of techniques for variant design and variant management.

Experience of liaising with both internal and external stakeholders

Experience in techniques for progressive acceptance for shock and thermal design.

Full engineering lifecycle experience from requirements through to delivery and acceptance

Experience of integrating products on to defence platforms

What we're looking for in you:

We are looking for an autonomous, motivated person. Taking responsibilities for your own work, you will be confident to work without immediate supervision, and capable of indirectly supervising others around you to ensure the swift and accurate delivery of high quality work.

You will be an excellent communicator, with the ability to build effective relationships with a range of stakeholders. You must also possess good attention to detail and be thorough with your work.

Location: Frimley, Broad Oak, Filton, Weymouth

Salary: Competitive

Benefits: Our employees receive an excellent benefits package which includes a competitive pension scheme, enhanced annual leave allowance and a Company contributed Share Incentive Plan. We also offer a range of additional benefits such as flexible working, an employee assistance programme, Cycle2work and many local and national employee discounts. Some employees may also be eligible for an annual incentive.

BAE Systems

BAE Systems is one of the world's leading global defence, security and aerospace companies. We work at the cutting edge of technology, creating more than 100 new inventions every year for customers in over 100 countries

Complex Systems and Support:

Complex Systems and Support (CS&S) is part of BAE Systems Submarines. We predominantly supply to the UK MoD but with smaller derivative work done in support of international Customers. Our team is responsible for system design, build and/or procurement of the major electronic and mechanical systems on a submarine, as well as provision of test, integration and support services.

Innovation is central to our DNA and has produced the Common Combat System (CCS) to address the customer's affordability, technology and capability challenges. It is based on commercial off-the-shelf technology (COTS) coupled with bespoke military hardware and software and is being progressively rolled-out into the UK's Submarine flotilla.

We effectively incorporate rapidly evolving, commercial technology, new capabilities and changes coming from the operational environment into long-term build, maintenance and in-service programmes.

As a 'system of systems' integrator we work closely with our Customer, partners and suppliers to develop and provide innovative, intelligent and value for money solutions across all classes of UK Submarine both in build and in service with the Royal Navy, ensuring our submariners always have world-class, safe, capable and available products.

BAE Systems is an equal opportunities employer. We value diversity and welcome applications from candidates from all backgrounds. We particularly welcome applications from sections of the community which are currently under-represented at BAE Systems, including women, BAME and applicants with disabilities. Please note we will not use any personal information relating to your background at any stage of the application process.

Please be aware that many roles working for BAE Systems will be subject to both security and export control restrictions. These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation.

Due to the volume of applications we receive, we sometimes close our vacancies early. It is therefore advisable to apply as early as possible if you would like to be considered for a role with BAE Systems

At BAE Systems, we provide some of the world's most advanced, technology-led defence, aerospace and security solutions. We employ a skilled workforce of more than 83,000 people in 40 countries. Working with customers and local partners, we develop, engineer, manufacture, and support products and systems to deliver military capability, protect national security and people, and keep critical information and infrastructure secure.

We’re pleased to launch a BAE Systems first; an interactive video. If you are interested in learning more about working with submarines, click the link below to experience, in your own way, a day in the life at the BAE Systems submarine shipyard.

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