Job Description

Mechanical Design Engineer - Contract (12 Months) Bedfordshire Inside IR35
Looking to take on complex engineering challenges that genuinely push your technical capability? We're seeking experienced Mechanical Design Engineers to join a high integrity defence engineering programme focused on advanced platform integration and mission-critical systems.
This is an opportunity to work on cutting-edge mechanical sub-systems, complex mechanisms, and high reliability components designed for demanding military environments.

Ampthill, Bedfordshire
On-site presence required Mondays and Tuesdays from September 2025

• Duration: 12 months
• Hours: 37.5 per week
• Schedule: 4-day week (Mon-Thurs) with flexible working
• Rate: Competitive per hour (inside IR35, inclusive of employer deductions)
• Clearance: BPSS to start; SC required later
• Eligibility: Sole UK nationals only (due to programme requirements)

As a Mechanical Design Engineer, you'll be responsible for the full lifecycle of mechanical design activities - from concept development and prototyping through to design proving, documentation, and supporting calculations.
You'll collaborate with multidisciplinary engineering teams to develop robust, manufacturable solutions that meet stringent performance, safety, and legislative requirements.

• Develop innovative, compliant design solutions from requirements and design briefs
• Create concept and detailed designs using CREO Parametric CAD
• Produce supporting calculations, analysis, and justification for design decisions
• Work with SMEs, users, and design authorities to refine concepts
• Collaborate with design engineers to deliver integrated sub-system solutions
• Support CAD engineers in producing drawings and data packs
• Present design review materials to senior engineering stakeholders
• Assist in prototype build, testing, and design proving
• Ensure adherence to industry standards, safety requirements, and programme constraints

• Proven experience within the defence industry, particularly with Armoured Fighting Vehicles or related systems (e.g., survivability, lethality, structures, comms, sensors)
• Strong background in mechanical sub-system and component design
• Expert-level proficiency with CREO and experience using Windchill
• Extensive knowledge of complex mechanism design
• Ability to perform structural and kinematic calculations
• Track record of delivering designs for harsh or demanding environments
• High attention to detail and strong documentation skills
• Effective planning, coordination, and problem solving abilities

You thrive in technically demanding environments, enjoy solving complex mechanical challenges, and bring a blend of creativity, rigour, and practical engineering insight. You're comfortable working across the full design lifecycle and collaborating with multidisciplinary teams to deliver high integrity solutions.

If you're a seasoned Mechanical Design Engineer with defence experience and a passion for developing robust, high?performance mechanical systems, this contract offers a unique opportunity to contribute to a major UK defence programme.
Ready to take the next step in your engineering career? Let's talk.