Principal Mechanical Engineer
Remote / Online - Candidates ideally in
Belfast, County Antrim, BT1, Northern Ireland, UK
Listed on 2026-01-15
Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for:
Thales UK Limited
Part Time, Remote/Work from Home
position Listed on 2026-01-15
Job specializations:
-
Engineering
Mechanical Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Skills:
Excel Power BI
Location:
Belfast, United Kingdom Thales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to extended protection across the entire battle-space including Airspace Mobility Solutions, Vehicles and Tactical Systems and Missile Defence, Optronics, and Radar.
Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and thats why we offer you the flexibility to do whats important to you;
whether thats part time hours, job sharing, home working, or the ability to flex your start and finish times. Where possible, we support a working pattern that suits your lifestyle and helps you reach your ambitions.
The Role We are seeking an experienced a Principal Mechanical Engineer who has a proven ability to apply engineering first principles and knowledge to new & existing products within the IAS portfolio. Working as part of a large Mechanical Design team, the principal mechanical engineer collaborates with local teams and multiple stakeholders to produce detailed Mechanical designs and support to a range of Weapon System, Missile and Platform products to satisfy customer requirements.
As a Principal Mechanical Engineer, you will also be expected to mentor, guide and lead others and act as a role model to junior engineers. As we enter a period of significant growth, we are seeking experienced engineers that have a proven track record and ability to implement excellent mechanical design process principles to projects to ensure project delivery and robust design output.
General Responsibilities Leverage engineering fundamentals to make sound decisions on complex technical issues Proactively challenge and drive team, self and organisation to deliver improved quality and performance related to engineering design Detailed Mechanical Design (supported by a range of CAE applications) Maintain product documentation in line with department processes Collaborate with multiple stakeholders across business unit, and beyond to ensure robust product designs Perform engineering change related tasks, ensuring BOM & process integrity Produce engineering technical drawings in line with BS 8888 guidelines Mentor, guide and lead others Lead & Participate in Design Reviews Lead Mechanical Work Packages and interface with other key business stakeholders to deliver Mechanical Design projects
Essential Criteria Degree (or similar) in engineering related discipline, preferably Mechanical Engineering 10+ Experience in a Mechanical Design Role Experience in internal/external customer and supplier interactions and proven stakeholder management qualities Experience & proficient in CAD software and its use in Mechanical design (Particularly Creo and/or Catia) Experience in producing Engineering Drawings & application of GD&T and knowledge of BS8888 Experience in PLM software such as Windchill Experience in Design for Manufacture principles and application to designs Experience in BOM creation and Engineering Change processes (with consideration given to implications of changes managing through the process) Experience in using international standards as part of product design process Proficient in use of Microsoft office applications Experience in leading a project and/or product team to deliver against milestones Excellent Communication & collaboration skills Knowledge of Environmental testing methods and how they integrate into robust product design Experience in solving complex problems and decision-making skills Experience on working on several projects simultaneously Desirable Criteria 2+ years experience of leading teams/projects
Experience of Six Sigma / Continuous improvement projects Experience in APQP/DFMEA techniques and their integration in the design process Experience in leading a DFMAT assessments / evaluations & implementation of principles in design Experience in using CAM software to influence design Experience in using simulation software to help assist design (Ansys, Creo Simulate, Solid Works Simulate) etc.
Experience with other CAE tools Knowledge of…
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