# Principal Mechanical Engineer at Thales

Thales is hiring a Principal Mechanical Engineer in Belfast, United Kingdom. Level rates it Little AI ●○○○; you can [apply on Level](https://jobsbylevel.com/go/79a27313-e9e0-4974-aed3-ec7c492e825e?utm_medium=ai-agent).

AI Level 1, AI centrality 36 out of 100. Belfast.

## Details

- Company: [Thales](https://jobsbylevel.com/companies/thales)
- AI level: AI Level 1 (score 36 out of 100)
- Location: Belfast
- Posted: October 12, 2026
- Apply: https://jobsbylevel.com/go/79a27313-e9e0-4974-aed3-ec7c492e825e?utm_medium=ai-agent

## Description

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. Principal Mechanical Engineer Location: based in Belfast, minimum 3 days/ week in office (hybrid), with <10% domestic travel Other: permanent, full-time Join Thales as a Principal Mechanical Engineer and take the lead in delivering cutting-edge defence technologies, combining technical excellence, leadership and innovation to help protect and defend what matters most. What the role has to offer Shape the Future of Defence Engineering - work on complex Weapon Systems, Missile Systems and Platform products, applying engineering first principles to develop innovative solutions that directly contribute to national and international security Lead, Influence and Mentor - play a pivotal leadership role within a large Mechanical Design team, driving engineering best practice, influencing technical direction and developing the next generation of engineering talent Thrive in a Growing Business with Outstanding Flexibility - join a business experiencing significant growth, with hybrid working, a half-day finish every Friday, performance bonus and a comprehensive benefits package that supports both your career and wellbeing Our Opportunity We are looking for a Principal Mechanical Engineer to lead the development of advanced defence technologies across our Integrated Airspace Systems portfolio. Working within a multidisciplinary engineering environment, you'll deliver innovative mechanical solutions for Weapon Systems, Missile Systems and Platform products, applying engineering expertise to solve complex technical challenges and drive successful programme outcomes. As a senior technical leader, you'll champion engineering best practice, influence key design decisions and mentor engineers across the team, helping to build capability as our business continues to grow. The ideal candidate will bring extensive mechanical design and hardware development experience, strong technical credibility and a proven ability to deliver robust, cost-effective solutions while leading and inspiring others. Building a Future, we can all trust. Integrated Airspace Protection Systems (IAS) - our main purpose is to protect and defend. We provide rapid integrated solutions for detection, coordination, fire control, engagement and support. We cover three sectors: Surface Attack & Air Defence (UK), Air Defence (International) and Air Operations & Services as well as Space. What we offer you We offer a competitive salary and benefits package designed to support our employees’ wellbeing and professional growth, which includes: Performance-related bonus Half day every Friday, usually finishing around 13:00 28 days annual leave (plus bank holidays) with opportunity to buy up to 40 hours/year (pro rata) 24 hours volunteering paid for Private healthcare Pension scheme Life cover 24/7 Employee Assistance Program and access to mental wellbeing app Employee discount shopping schemes on major brands and retailers Gym membership discounts Key Responsibilities and Tasks Lead Mechanical Design & Development - Deliver detailed mechanical designs and engineering solutions for new and existing products, applying engineering first principles and utilising appropriate CAE tools, analyses, simulations, prototypes and testing methods Drive Technical Excellence & Decision Making - Analyse complex mechanical engineering challenges, evaluate options, and propose justified technical, technological and methodological solutions aligned with approved architectures, performance requirements and customer needs Manage Product Definition &

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/principal-mechanical-engineer-at-thales-77ea5a

Source: https://jobsbylevel.com/jobs/principal-mechanical-engineer-at-thales-77ea5a

## Cite this page

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