Principal Mechanical Design Engineer

MBDA UK; Stevenage; Hybrid; GBP 50,000 - 65,000; Full time

Benefits offered by this job

Company bonus: Up to £2,500 (based on

Job summary

MBDA UK in Stevenage is seeking experienced Principal Mechanical Design Engineers to lead mechanical design across the full product life cycle for complex weapons systems. You will headline design work, mentor engineers, and collaborate with multidisciplinary teams in a hybrid on-site role.

The role requires degree in Mechanical Engineering, strong leadership, experience from concept to in-service support, and knowledge of DFMEA, DFA, and DFM, with UK travel and BPSS checks.

Qualifications

• Ideally degree, HND, or HNC in Mechanical Engineering (or equivalent) with significant industry experience.

Responsibilities

• Lead complex mechanical design work packages for weapons systems across the full life cycle.
• Collaborate with multi-disciplinary teams across engineering, manufacturing, quality and supply chain.
• Ensure designs meet performance, safety, cost and schedule requirements.
• Provide technical leadership and interface with internal and external stakeholders.

Skills

Technical leadership

DFMEA / DFA / DFM

3D CAD/CAE

Supplier engagement

Mentoring engineers

Project lifecycle knowledge

Communication skills

Risk management

UK travel

Education

Degree/HND/HNC in Mechanical Engineering

Tools

CAD/CAE software

DFMEA tools

Job description

Mechanical Engineering is excited to offer multiple opportunities for experienced Principal Mechanical Design Engineers, with roles available across all areas of the Product Life Cycle, from mechanical future concepts and detailed design through qualification, production, and in-service support. In these roles of responsibility, you will lead the development of mechanical solutions for a wide variety of complex weapons and weapon systems, working closely with multi-disciplinary teams across engineering, manufacturing, quality, and supply chain. You will be expected to provide technical leadership, drive design maturity, and act as a key interface with internal and external stakeholders.

Salary: Circa £50,000+ depending on experience Location: Stevenage (relocation package may be available) Dynamic (Hybrid) Working: An average of 2-3 days per week on-site dependent on work classification Security Clearance: British Citizen or a Dual UK national with British citizenship. Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by the MBDA Personnel Security Team.

What we can offer you:

• Company bonus: Up to £2,500 (based on company performance and will vary year to year)
• 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 -enhancements are available for paternity leave, neonatal leave and fertility testing and treatments
• Facilities: Fantastic site facilities including subsidised meals, free car parking and much more…
• Healthcare Cash Plan: The Healthcare Cash Plan benefit provides the option to claim cash back on everyday healthcare expenses such as optical, dental, health and wellbeing and more.

The Opportunity:

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. You will play a key role in ensuring designs meet performance, safety, cost, and schedule requirements. The roles provide excellent long-term career progression opportunities within MBDA, including further technical leadership or engineering management pathways. Appointments will be made at an appropriate level based on skills and experience.

What we’re looking for from you:

• Ideally Degree, HND, or HNC in Mechanical Engineering (or equivalent) with 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)
• Note: This role may involve UK travel and occasional European travel.

Our company:

Peace is not a given, Freedom is not a given, Sovereignty is not a given MBDA is a leading defence organisation. We are proud of the role we play in supporting the Armed Forces who protect our nations. We partner with governments to work together towards a common goal, defending our freedom. We are proud of our employee-led networks, examples include: Gender Equality, Pride, Menopause Matters, Parents and Carers, Armed Forces, Ethnic Diversity, Neurodiversity, Disability and more… We recognise that everyone is unique, and we encourage you to speak to us should you require any advice, support or adjustments throughout our recruitment process. Follow us on LinkedIn (MBDA), X (@MBDA_UK), Instagram (MBDA_UK) and Glassdoor or visit our MBDA Careers website for more information. What we do matters. Because defence matters. As a leading company in the defence industry we support our nations by delivering essential military capabilities, both for today and the future. We are proud to be an award-winning employer and are proud of the growing diversity of our workforce. Our people are the ones who drive our constant innovation and deliver against challenging targets. Whatever your background, we welcome your application to MBDA UK and look forward to speaking with you soon.