Principal Mechanical Design Engineer

Role Overview

We are seeking experienced Principal Mechanical Design Engineers to lead the development of mechanical solutions for complex weapons and weapon systems. You will work closely with multi-disciplinary teams across engineering, manufacturing, quality, and supply chain. The roles offer the chance to lead complex mechanical design work packages on critical defence products and influence design decisions across the full life cycle.

What You Will Do

You will lead the development of mechanical solutions, provide technical leadership, drive design maturity, and act as a key interface with internal and external stakeholders. You will also play a key role in ensuring designs meet performance, safety, cost, and schedule requirements.

Why It Might Be a Fit

This role offers excellent long-term career progression opportunities within MBDA, including further technical leadership or engineering management pathways. You will have the opportunity to work on complex projects, lead teams, and influence design decisions.

Requirements

• Degree, HND, or HNC in Mechanical Engineering (or equivalent)
• Significant industry experience
• Proven ability to lead mechanical design work packages within multi-disciplinary teams
• Strong experience across full product life cycles, from concept to in-service support
• In-depth knowledge of design proving and qualification activities
• Robust hands-on experience with design methodologies such as DFMEA, DFA, and DFM
• Strong communication skills with the ability to influence, negotiate, and make technical decisions
• Experience engaging with and developing suppliers and external partners
• Ability to manage priorities, assess risk, and mentor less experienced engineers
• Understanding of structural, thermal, and/or dynamic analysis (advantageous)
• Relevant 3D CAD/CAE experience (training provided on company tools)

Benefits

• Company bonus: Up to £2,500
• Pension: maximum total (employer and employee) contribution of up to 14%
• Overtime: opportunity for paid overtime
• Flexi Leave: Up to 15 additional days
• Flexible working: We welcome applicants who are looking for flexible working arrangements
• Enhanced parental leave: offers up to 26 weeks for maternity, adoption and shared parental leave
• Healthcare Cash Plan: The Healthcare Cash Plan benefit provides the option to claim cash back on everyday healthcare expenses