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Posted 02 August, 2026

Mechanical Design Engineer

Certain Advantage
Stevenage, ENG, GB Full Time

Job Description

World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 12 month contract.This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills. Job Title: Mechanical Design EngineerRate: £50.00 per hourLocation: Stevenage Hybrid / Remote working: 4 days a week likely onsite (likely could be lower on a week by week basis; depending on work). 1 day remote. (flexible on start and finish time). A compressed 4 day week (Monday to Thursday) a possibility.Contract: 37 Hours per weekOvertime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’Duration: 12 Months (initially and then ongoing and long-term thereafter)IR35 status: Inside IR35 (Umbrella)Mechanical Design Engineer Job Description:An opportunity to become part of Europe’s No. 1 Missile Systems Designer, as a Mechanical Design Engineer. You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role you will have the opportunity to undertake cutting-edge research of novel mechanical technologies to meet the challenges of tomorrow.Responsibilities:\n
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  • Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies.
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  • Support/liaise with manufacturing, resolving manufacturing problems & defects.
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  • Support to functional & environmental testing and trials.
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  • Liaise with suppliers/purchasing to resolve any technical queries that may arise.
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  • Planning and reporting on own day-to-day activities to meet project milestones.
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  • Gain clarification of and help to generate requirements, including challenging of extraneous requirements to reduce lead time, UPC and design complexity
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Skillset/experience required:\n
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  • Experience using Creo 3D design tool
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Knowledge of several of the following……………..\n
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  • Manufacturing processes
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  • Tolerance studies
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  • Environmental test
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  • Mass property calculations
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  • Material selection
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  • FMEA
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  • Design for Manufacture/Assembly
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  • Environmental Gasket Sealing
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  • Tooling/fixtures design
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  • Structural design
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  • Defence Standards
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  • Review processes
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  • Product Lifecycles
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  • Industrial validation
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  • An ability to work as part of a multifunctional engineering team and be able to partake in or host design reviews.
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  • An appreciation of other engineering areas/domains.
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