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Contractor mechanical design engineer

266 mechanical design engineer jobs found

CL
Aug 14, 2026  
Mechanical Design Engineer
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 Engineer Rate: £50.00 per hour Location: 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 week Overtime: 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
Mechanical Design Engineer 12 month contract Based in Stevenage Offering £50ph Inside IR35 Do you have experience using CREO? Do you have experience carrying out mechanical design and proving activities? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Mechanical Design Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies Support/liaise with manufacturing, resolving manufacturing problems & defects Support the functional & environmental testing and trials Liaise with suppliers/purchasing to...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Stevenage - 4 days/week onsite minimum (likely flexible week to week) + 1 day remote Duration: 12 months Rate: £50/hour Umbrella IR35: Inside Clearance: SC + BPSS to start (UK Eyes Only) Overview 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 work as part of a multi-disciplinary team to perform a range of engineering activities including progressing developmental designs into production environments and working with suppliers on technical queries. Responsibilities: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies. Support/liaise with manufacturing, resolving manufacturing problems & defects. Support to functional & environmental testing and trials. Liaise with suppliers/purchasing to resolve any technical queries that may arise....
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
We are currently supporting a leading engineering business within the water treatment sector in their search for a Mechanical Design Engineer to join their growing team.  This is a long term contract, outside ir35 with remote working considered (must be based in the UK).  The Role You will act as the sole Mechanical Engineer across several concurrent projects, taking ownership of mechanical design input, specification, and procurement activities. Key responsibilities include: Specifying and procuring pumps, blowers, and steelwork fabrications Supporting delivery of multiple medium-scale water treatment projects Working closely with suppliers and fabrication partners across the UK Attending factory acceptance tests (FATs) at various UK sites Ensuring engineering solutions are delivered to quality, cost, and schedule requirements About You We are looking for a self-sufficient and fast-learning engineer who is comfortable taking ownership of their work. Ideally you will have:...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
Job Title: Mechanical Design Engineer Location: Rugeley Term: 12 Months Hourly Rate: £DOE IR35 Status: Inside IR35 Key Skills: Mechanical Design, Engineering, SolidWorks, CAD, Mechanical, Enclosures, Shock, Thermal We are seeking an experienced Mechanical Design Engineer Contractor with strong expertise in complex enclosure design to support our growing engineering team. You will work within integrated product teams and collaborate closely with specialists across mechanical, electrical, systems and electro-mechanical disciplines to develop high-performance mechanical solutions for cutting-edge defence products. This role is ideal for engineers who thrive in a fast-paced environment, enjoy variety, and want to contribute across the full product lifecycle, from concept generation to final delivery. Key Responsibilities Create high-quality mechanical models using CAD tools Contribute to all stages of product design and development Apply mechanical engineering expertise to support...
IR35 Status:
Inside IR35

CV-Library Rugeley, Staffordshire Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
We are seeking a Mechanical Engineer to design and develop high-performance subsea electrical and optical connector solutions for harsh offshore environments. You will work on innovative products used in critical subsea applications, collaborating with multidisciplinary teams to deliver reliable, cost-effective engineering solutions. Key Responsibilities Design and develop subsea connectors, pressure housings and sealing systems using CAD tools. Perform engineering analysis including mechanical, thermal and pressure calculations/FEA. Support prototype development, testing, qualification and product validation activities. Produce technical documentation including drawings, specifications, BOMs and test reports. Ensure compliance with relevant industry standards (API, ISO, IEC, IEEE). Work closely with manufacturing, quality and project teams to support product delivery and continuous improvement.Requirements Bachelor's or Master's degree in Mechanical Engineering or related...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Aug 12, 2026  
Senior Mechanical Design Engineer
Mechanical Design Engineer – Nuclear Sector Warrington | 6-Month Contract | Outside IR35 Considered Rate: Competitive Hourly / Daily Rate (DOE) Our client is a specialist engineering organisation supporting major nuclear programmes across the UK. Due to an increase in project workload, they are seeking an experienced Mechanical Design Engineer to join their engineering team in Warrington on an initial 6-month contract basis. This role will focus on the design and development of bespoke mechanical systems and special purpose machinery for use within highly regulated nuclear environments. The successful candidate will be involved in the full design lifecycle, working closely with project engineers, analysts, manufacturing teams, and end clients to deliver innovative engineering solutions. The Role Working within a multidisciplinary engineering team, you will be responsible for the design and development of bespoke mechanical equipment, handling systems, process machinery,...
IR35 Status:
Outside IR35

CV-Library Warrington, ENG, GB Contractor
CL
Aug 12, 2026  
Mechanical Design Engineer
Mechanical Design Engineer 6-Month Fixed Term Contract East Sussex, Nr Hailsham £40,000 - £50,000 P.A + Benefits In a nutshell… Our client is a well-established engineering manufacturer with an excellent reputation for designing and producing high-quality industrial equipment. Due to increased project demand, they are looking to recruit an experienced Mechanical Design Engineer to join their engineering team on a 6-month fixed-term contract. The Mechanical Design Engineer will be responsible for translating legacy hand-drawn engineering sketches into fully detailed 3D SolidWorks models. Working from existing documentation, you will recreate components and assemblies while ensuring designs are accurate, practical for manufacture, and compliant with engineering standards. This is an excellent opportunity to join a forward-thinking engineering business and play a key role in delivering innovative engineering solutions. What's involved for the Mechanical Design Engineer…...
IR35 Status:
Unknown Status

CV-Library Hailsham, East Sussex Contractor
CL
Aug 09, 2026  
Mechanical Design Engineer
We are recruiting a Mechanical Design Engineer to design and develop high-reliability subsea electrical and optical connectors for harsh and extreme environments. You will work on low and high voltage connector systems, pressure housings, and sealing solutions used in offshore and subsea applications. The role involves CAD-based design, material selection for HPHT and subsea environments, FEA validation, prototype and pressure testing, and producing detailed engineering documentation. You will collaborate closely with R&D, manufacturing, quality, and project teams, contributing to both standard product development and customer-specific projects. Key requirements Degree in Mechanical Engineering (or similar) Three years experience in subsea or high-reliability mechanical systems Strong CAD and FEA skills Knowledge of sealing technologies, pressure-rated designs, and subsea materials Familiarity with industry standards (API, ISO, IEC, IEEE)
IR35 Status:
Unknown Status

CV-Library Barrow-in-Furness, UK Contractor
CL
Aug 09, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer - Water AMP8 Location: Maidstone, Kent (flexible hybrid) Job type: Long‑term Contract (Outside IR35) A leading water client is seeking an experienced mechanical design engineer to support long‑term capital delivery programmes. This client‑side position covers the full project lifecycle including feasibility, optioneering, detailed design, construction and commissioning. Responsibilities Lead mechanical engineering design activities from feasibility through to commissioning on clean water infrastructure projects. Produce and review detailed mechanical designs, calculations, specifications, reports and drawings for treatment plant assets, pumped systems, pipework and chemical dosing equipment. Carry out and validate hydraulic calculations, including pump sizing, system curves, head loss assessments and surge considerations. Ensure design outputs comply with client standards, WIMES, CDM requirements and relevant industry legislation. Coordinate...
IR35 Status:
Unknown Status

CV-Library Maidstone, UK Contractor
CL
Aug 08, 2026  
Mechanical Design Engineer
Mechanical Design Engineer - Defence Projects Plymouth | Remote Working £60-£70 per hour 12-Month Contract (Temporary) | Inside IR35 An exciting opportunity has arisen for an experienced Mechanical Design Engineer to join a leading engineering organisation delivering complex defence and naval infrastructure projects. This Mechanical Design Engineer role is ideal for someone who enjoys designing technically challenging mechanical systems while contributing to nationally significant defence programmes. You'll work as part of a multidisciplinary engineering team, supporting projects from concept through to detailed design across major infrastructure and marine facilities. The successful Mechanical Design Engineer will play a key role in delivering innovative engineering solutions within a highly regulated environment, supporting some of the UK's most important defence projects. The Role As a Mechanical Design Engineer, you'll be responsible for: Producing mechanical building...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Aug 08, 2026  
Mechanical Design Engineer
Duration: 3-6 Month Rolling Location: Carlow Role: Develop and maintain 3D SolidWorks model from high-level concept through to detailed design (LOD 450 level) for containerised power generation equipment. Perform full package layout design and integration, ensuring compliance with customer specifications, equipment manufacturer requirements and relevant standards. Generate assembly drawings, fabrication drawings and bill of materials. Collaborate with multi-disciplinary team (mechanical, electrical, piping, structural) Skills/Experience: Must be expert user of SolidWorks Demonstrate previous experience working at a senior design engineer level Experience designing generator packages, power generation equipment, complex machinery or containerised industrial systems. Experience implementing DfMA principles for volume manufactureersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Aug 08, 2026  
Mechanical Design Engineer
Mechanical Design Engineer - High-End Residential & Commercial Remote (UK) £40-£45 per hour 6-Month Contract (Temporary) | Outside IR35 An exciting opportunity has arisen for an experienced Mechanical Design Engineer to join a specialist Building Services consultancy delivering luxury residential and high-end commercial office developments. This Mechanical Design Engineer role is ideal for someone who enjoys taking ownership of mechanical building services designs and working independently across technically demanding projects. You'll be responsible for delivering Stage 5 mechanical designs while supporting the successful delivery of prestigious developments from detailed design through to construction. The successful Mechanical Design Engineer will join a highly experienced consultancy, working remotely on a portfolio of premium Building Services projects. The Role As a Mechanical Design Engineer, you'll be responsible for: Designing mechanical building services...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 06, 2026  
Mechanical Design Engineer
Looking for a good all-round mechanical design engineer, skilled on either SolidEdge or SolidWorks . Enclosuers, cabinets/boxes around electronics, brackets machines parts...basically light metal work that houses systems. Ideal candidate will come from Medical or Electronics enclosures or consumer products..NOT Heavy industry
IR35 Status:
Unknown Status

CV-Library Abingdon, Oxfordshire Contractor
CL
Aug 06, 2026  
Mechanical Design Engineer (Solidworks)
Mechanical Design Engineer (SolidWorks) – Immediate Start Available Our client, a leading engineering business, is looking for an experienced Mechanical Design Engineer with strong SolidWorks skills to join their team as soon as possible. This is an excellent opportunity for a proactive Mechanical Design Engineer who enjoys taking ownership of projects and delivering high-quality design solutions within challenging timescales. Key Requirements for the Mechanical Design Engineer: * Proven and strong experience using SolidWorks for mechanical design. * Background in Aerospace, Automation, Agricultural Engineering, or a similar industry. * Mechanical/Design/Engineering degree/qualifications or similar. * Strong understanding of mechanical engineering and manufacturing processes. * Ability to manage multiple tasks and consistently meet project deadlines. * Self-motivated, proactive, and capable of working independently and within a team. The Role of the Mechanical Design...
IR35 Status:
Unknown Status

CV-Library Newbury, West Berkshire Contractor
CL
Jul 21, 2026  
Senior Mechanical Design Engineer
I'm recruiting for a tech start-up in Cheltenham who are growing their R&D and engineering team following a successful period. They're looking for a contract Mechanical Design Engineer to design, develop and test the products used in surveillance, security and telecoms. ROLE: Mechanical Design Engineer LOCATION: Cheltenham RATE: up to £55ph DURATION: 6 months IR35: Outside IR35 Skills required for the Mechanical Design Engineer are: * 2D/3D CAD in Solidworks * Strong protoyping skills (3d printing etc) * Ability to work in fast-paced environment * Analysis/simulation skills * Experience designing ruggedized products for extreme/harsh environments or safety-critical industries The work is 100% on-site in Cheltenham but the company can offer some flexibiltiy with hours to suit personal situation. If you're interested, please apply below or get in touch with me directly with any questions Cheers, Nathan
IR35 Status:
Outside IR35

CV-Library Cheltenham, Gloucestershire Contractor
CL
Jul 19, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer East Midlands - commutable from Derby, Leicester and Nottingham to c£47k neg dep exp + benefits Our client can demonstrate almost half a century's expertise in the design, development and manufacture of bespoke automation and robotic systems for a diverse range of industry sectors and are regarded by many in the industry as one of the leading automation system solution providers in the whole of the UK. As a result of continued success and a planned programme of strategic growth, they are now seeking to recruit an experienced Lead / Senior Mechanical Design Engineer to complement their established and successful team and deliver innovative special purpose automation machinery projects. Based near Leicester and tasked with both designing and overseeing an array of special purpose machine projects from order acceptance to customer hand over, the successful Senior Mechanical Design Engineer candidate will be responsible for the design, detailing...
IR35 Status:
Unknown Status

CV-Library Leicester, Leicestershire Contractor
CL
Jul 09, 2026  
Mechanical Design Engineer
This amazing long term contract Mechanical Design Engineer contract with a leading Formula One organisation in Northamptonshire, is to support a range of high-performance, advanced technology programmes. This is an exciting opportunity to contribute to world-class engineering projects in a fast-paced, innovation-driven environment. The Role As a Mechanical Design Engineer, you will support the design and development of mechanical components and systems, contributing across the full product lifecycle — from concept through to validation and release. You’ll work closely with cross-functional teams to deliver high-quality, right-first-time engineering solutions across a variety of technically demanding projects. Key Responsibilities Design and develop mechanical components and assemblies across motorsport and advanced automotive programmes Support engineering activities from clean sheet concept through to end-of-life Produce detailed designs for complex, highly loaded components Apply...
IR35 Status:
Unknown Status

CV-Library NN6, Spratton, West Northamptonshire Contractor
CL
May 01, 2026  
Mechanical Design Engineer - Building Services
The Company On-going success means my client requires a Mechanical Design Engineer (Building Services). Reporting directly to the senior Chartered Engineering manager, you will be joining a team of Building Services and CAD engineers. The Role: A Mechanical Design Engineer with demonstrable knowledge of reviewing drawings, surveying existing installations and designing HVAC systems. Most of the work is Mechanical design engineering to projects providing HVAC mechanical services solutions. You will see the project through from concept to hand-over, working closely with estimating and project management departments. Duties will include: * involvement in the design of HVAC systems to enable both new and existing systems * creating new ventilation ductwork systems, CHW & LTHW systems etc, Head Load, Cooling Load calculations, onsite visits, meetings and communicating with various clients, architects and sub-contractors etc * Coordination with electrical counterparts * take...
IR35 Status:
Unknown Status

CV-Library Birmingham, West Midlands (County) Contractor
CL
Aug 13, 2026  
Mechancial Design Engineer
Mechanical Design Engineer Yeovil Mechanical Design Engineer salary: £22.20 per hour (contract) Please note: only applicants with the full-time, permanent right to work in the UK will be considered. Mechanical Design Engineer Overview: Support concept and detailed design work on complex aerospace systems Produce drawing packs, tolerance analysis and supporting engineering documentation Work with 2D/3D CAD, with Siemens NX experience particularly useful Liaise with production engineering and planning to support design for manufacture Contract opportunity within a highly regulated aerospace engineering environment  This Mechanical Design Engineer role is based in Yeovil and will support complex aerospace engineering projects across advanced mechanical systems. The Mechanical Design Engineer will work as part of a design team, supporting concept development, detailed design, engineering changes, drawings and associated technical documentation. This Mechanical Design Engineer...
IR35 Status:
Unknown Status

CV-Library Yeovil, UK Contractor
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