Senior Mechanical Engineer

Posted 3 Days Ago
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Belfast, County Antrim, Northern Ireland, GBR
In-Office
Senior level
Artificial Intelligence • Big Data • Information Technology • Security • Software
The Role
The Senior Mechanical Engineer will collaborate with teams to create detailed mechanical designs for weapon systems, ensuring cost-effectiveness and compliance with standards.
Summary Generated by Built In
Location: Belfast, United Kingdom

Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services.

Senior Mechanical Engineer

The Role

We are seeking an experienced a Senior Mechanical Design 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 Senior mechanical design 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 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.

Life as a Thales Mechanical Engineering Role

As a Mechanical Engineering Role within Thales, you will:

  • Perform a subset of all the hardware engineering activities applicable to Mechanical Engineering
  • Analyse the mechanical needs whatever the used means (e.g. advanced studies, simulations, mock-ups, models, prototypes)
  • Describe the mechanical functions, requirements and development plan
  • Elaborate the data package to be transferred to production
  • Work collaboratively with production and procurement to produce cost effective, easy to manufacture mechanical design solutions
  • Monitor, plan and organise mechanical activities to measure and report on the technical progress
  • Propose and justify technical, technological and methodological choices in accordance with the approved mechanical architecture and design
  • Monitor compliance of designs against target costs and lead time

Your Career At Thales

Future opportunities will allow you to discover other domains or sites. You will be able to evolve and grow your competencies in different areas:

  • Room and attention to personal development
  • Build your talents in another domain of Thales Group, discovering new products, new customers, new country or go to a more complex Solution
  • Choose between a technical expertise or a leadership path
  • Build an international career within a leading Engineering Group

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

Essential Criteria

  • Degree (or similar) in engineering related discipline, preferably Mechanical Engineering
  • 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

#LI-CA1

At Thales, we ensure equal opportunities, pay and working conditions for all. The benefits we offer include private medical insurance, buying or selling annual leave, cycle to work schemes, employee discounts, paid volunteering day, stocks and shares, annual bonus and much more depending on the role. Read more about our benefits here.


We are committed to creating a workplace where everyone feels valued for who they are and the unique strengths they bring. Discover more about our programmes, employee networks, wellbeing policies, and inclusive features here.


If this role isn’t quite right for you, we encourage you to join our talent community where your details will be shared with our recruitment teams for other potential opportunities. Join the Talent Community here.

Join Thales in the UK – Innovate with us and shape the future!

Skills Required

  • Degree in engineering related discipline, preferably Mechanical Engineering
  • Experience & proficient in CAD software (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
  • Experience in BOM creation and Engineering Change processes
  • Experience in using international standards in product design
  • Proficient in Microsoft office applications

Thales Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Thales and has not been reviewed or approved by Thales.

  • Retirement Support Retirement plans with employer contributions and matches, profit sharing, and share purchase opportunities are emphasized across multiple regions. These elements are positioned as competitive components of total rewards.
  • Leave & Time Off Breadth Generous PTO that increases with tenure, paid holidays, and paid military, maternity, and paternity leave are described. This breadth supports work–life balance across locations.
  • Flexible Benefits Hybrid work options, flexible schedules, and parental supports such as childcare benefits and leave for sick children are available in several markets. Flexibility is presented as a core part of the employee experience.

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The Company
Arlington, VA
63,258 Employees

What We Do

Thales is a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust, which is vital to the development of our societies. The company provides solutions, services and products that help its customers – businesses, organisations and states – in the defence, aeronautics, space, transportation and digital identity and security markets to fulfil their critical missions, by placing humans at the heart of the decision-making process.

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