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Contractor 79
Engineering senior mechanical design engineer

79 senior mechanical design engineer jobs found

CL
Jul 24, 2026  
Senior Mechanical Design Engineer - Farnborough
Senior Mechanical Design Engineer Duration: 6 months Rate: £70 per hour inside IR35 via Umbrella (37 hours per week) Location: Farnborough (Hybrid, travel to Amesbury/ Malvern may be required ad hoc) SC Clearance/ eligibility is required for this position Role Purpose Being a go-to individual within the Allocated Design Team & surrounding SME's, the Senior Engineer - Mechanical Designer's Main role will be leading the delivery of Mechanical Design solutions and taking ownership of delivery on complex tasks, requiring high integrity engineering and managing complex, unusual tasks involving significant challenges. They will explore and test the problem space thoroughly, guiding others in generating their own hardware solutions and be prepared to lead and co-ordinate the reviews and testing of these ideas at design reviews and group critiques to delight customers. The company support numerous Domains, such as Aircraft Modification, Land Platforms Development & Autonomy...
IR35 Status:
Inside IR35

CV-Library Farnborough, Hampshire Contractor
CL
Jul 24, 2026  
Senior Mechanical Design Engineer - Boscombe Down
Senior Mechanical Design Engineer Duration: 6 months Rate: £70 per hour inside IR35 via Umbrella Location: Amesbury Hybrid (travel to Farnborough/ Malvern may be required ad hoc) SC Clearance/ eligibility required Role Purpose Being a go-to individual within the Allocated Design Team & surrounding SME's, the Senior Engineer - Mechanical Designer's Main role will be leading the delivery of Mechanical Design solutions and taking ownership of delivery on complex tasks, requiring high integrity engineering and managing complex, unusual tasks involving significant challenges. They will explore and test the problem space thoroughly, guiding others in generating their own hardware solutions and be prepared to lead and co-ordinate the reviews and testing of these ideas at design reviews and group critiques to delight customers. The company support numerous Domains, such as Aircraft Modification, Land Platforms Development & Autonomy and Ship design. Each Team will have...
IR35 Status:
Inside IR35

CV-Library Amesbury, Wiltshire 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 22, 2026  
Senior Design Engineer
Location: Peterlee Rate: £53.80/hour OR £46/ hour PAYE Hours: 8am – 4pm Monday to Thursday and Fridays 8am-12:30pm Duration: 12 months (likely to extend)   We are actively seeking a Senior Mechanical Design Engineer to join a global automotive company based in Peterlee to specialise in fluid power and structural integration. Design Engineers will be responsible for designing, simulating, and routing the hydraulic systems of industrial vehicles ensuring they can handle extreme pressures without breaking.   Responsibilities: Design and integrate hydraulic pipework, flexible hoses, and rigid tubing within steel machines, ensuring correct routing, clearance, bend radius, and durability under high-vibration conditions. Support NPI and continuous improvement and engineering change to resolve any design and manufacturing issues. Perform FEA and simulations to validate the structural integrity of components under operational loading. Collaborate with suppliers to source hydraulic...
IR35 Status:
Unknown Status

CV-Library Peterlee, UK Contractor
CL
Jul 26, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jul 26, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 25, 2026  
Repairs Engineer- Gas Turbines
Rullion Is currently looking to recruit for the following role for one of our global leading clients in their Global Repair Network Team Repairs Engineer Warwick ASAP Start 6 months++++++ Inside IR35 £46 Per hour PAYE/£62 Per hour Umbrella Hybrid Industry - Gas Turbine Our client has an exciting opportunity within the Global Repair Network Team working closely with their external network of MROCs (Maintenance, Repair & Overhaul Centre's) and authorized Repair Vendors. The Repair Engineer (FTC) role within the Repair Network Engineering Team will play a key part in supporting the existing global capability within the Global Repair Network Team as well as future capability developments. Job Role. Support component repair development activities. Assess, investigate and sentence non-conforming components. Support repair scheme amendment/writing and technical variances. Support implementation of improvements & technical solutions (internally & externally). Represent...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
Jul 25, 2026  
Product Review Engineer
Our client, a leading organisation within the UK defence and aerospace sector, is looking to recruit a Product Review Engineer to support a major military aircraft programme based in Birmingham. This is an excellent opportunity for an experienced Mechanical or Avionics/Electrical Engineer to work at the forefront of aircraft production, providing engineering solutions that directly influence build quality, airworthiness and programme delivery. This is a hands-on engineering role that extends well beyond the office. You'll spend time working closely with production teams on the factory floor and in the hangar, investigating technical issues, resolving non-conformances and ensuring aircraft are delivered safely and efficiently. The Role As a Product Review Engineer, you'll be responsible for assessing manufacturing and production issues, carrying out root cause investigations, and developing engineering dispositions for non-conformances. Acting as the key link between design...
IR35 Status:
Unknown Status

CV-Library Birmingham, West Midlands Contractor
CL
Jul 24, 2026  
Senior Project Engineer
ADDISON PROJECT PLC – Senior Project Engineer, Daresbury For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place for you. WORKSCOPE Addison Project Plc are seeking Senior Project Engineer Services from (PSC) contractors who have UK Onshore experience delivering EPCM Projects as a...
IR35 Status:
Outside IR35

CV-Library Daresbury, Borough of Halton Contractor
CL
Jul 24, 2026  
Senior Systems Engineer
A global medical device company is seeking a Senior Systems Engineer / Mechanical Systems Engineer to support on a 6-month contract basis, starting as soon as possible. You'll work with a multi-disciplinary engineering team to support the design, integration, and verification of complex electro-mechanical medical device systems. The role will cover system architecture, mechanical engineering support, hardware/software/fluidics integration, design verification and validation, risk management, design reviews, and technical documentation within a regulated environment. Essential Skills Medical device product development experience Systems engineering or mechanical engineering experience Electro-mechanical systems experience Design verification and validation / V&V experience Design controls, risk management, and technical documentation experience Desirable Skills Experience with drug delivery systems, fluidics, embedded software, or complex electro-mechanical medical...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Jul 23, 2026  
Product Development Engineer
Product Development Engineer - BAE Glascoed Location: Glascoed Positions: x1 Working arrangements: 37 hours Mon- Thu with Fridays off. 7:15am - 5pm -can be flexible Rate: 38.25ph umbrella (inside IR35) Security: BPSS only Skills including electronics design as well as a high degree of competence in mechanical integration and systems engineering / Model Based engineering. What you’ll be doing: • Supporting the product design and systems engineering activities for new and legacy products, including product design and evaluation using systems engineering tools (e.g. MBSE, Pugh Matrices, Fault Tree Analysis (FTA), Design Failure Modes and Effects Analysis (DFMEA)). • Hands on development with energetic materials and munitions to support product design and development activity • Conducting and managing product and process design, development, test, manufacture and evaluation activities, ensuring safety remains the highest priority in the working practices...
IR35 Status:
Inside IR35

CV-Library Glascoed, Pontypool NP4, UK Contractor
CL
Jul 23, 2026  
Senior/Principal Mechanical Engineer
The Opportunity PWHytek Ltd are currently recruiting for a number of Senior and Principal Mechanical Engineers to support a major programme of work within the UK nuclear sector. This is an excellent opportunity to join a high-profile engineering programme, supporting the design, operation and ongoing safety of nuclear power generation. We are looking for experienced engineers who can bring specialist knowledge from operational nuclear facilities or nuclear plant design to support technically challenging projects. The Role Working as part of a multidisciplinary engineering team, you will provide technical expertise across mechanical engineering activities, supporting the delivery of engineering solutions within a highly regulated environment. Successful candidates will contribute to engineering assessments, design activities, safety case justification and operational support across a range of nuclear projects. Key Responsibilities * Deliver high-quality mechanical or...
IR35 Status:
Unknown Status

CV-Library Bristol, City of Bristol Contractor
CL
Jul 23, 2026  
Senior/Principal EC&I Engineer
The Opportunity PWHytek Ltd are currently recruiting for a number of Senior and Principal EC&I Engineers to support a major programme of work within the UK nuclear sector. This is an excellent opportunity to join a high-profile engineering programme, supporting the design, operation and ongoing safety of nuclear power generation. We are looking for experienced engineers who can bring specialist knowledge from operational nuclear facilities or nuclear plant design to support technically challenging projects. The Role Working as part of a multidisciplinary engineering team, you will provide technical expertise across EC&I engineering activities, supporting the delivery of engineering solutions within a highly regulated environment. Successful candidates will contribute to engineering assessments, design activities, safety case justification and operational support across a range of nuclear projects. Key Responsibilities * Deliver high-quality mechanical or EC&I...
IR35 Status:
Unknown Status

CV-Library Bristol, City of Bristol Contractor
CL
Jul 23, 2026  
Senior Mechanical Engineer
Senior Mechanical Engineer -Nuclear Warrington £51-£56 per hour (Inside IR35) Hybrid - 3 Days On Site 12-Month Contract Are you an experienced Senior Mechanical Engineer looking to play a key role on a high-profile nuclear project? We're seeking a talented engineer to join the Plant Facing Design Office (PFDO) team, supporting the development of specialist tooling and equipment used for early retrieval operations within a complex, highly regulated environment. This is an excellent opportunity to contribute to challenging engineering work while collaborating with industry-leading professionals. The Role Working within the PFDO team, you'll support the development of tools and equipment for retrieval operations, while providing technical support to the Principal Engineer. Typical responsibilities include: Producing mechanical design packages for manufacture and installation Developing engineering drawings, method statements and risk assessments Producing technical...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Jul 22, 2026  
Senior Mechanical Handling Engineer
Senior Mechanical Handling Engineer Duration: 12 Months Location: Devenport Dockyard, Plymouth (hybrid) Pay Rate: £63-£70 per hour inside IR35 via Umbrella (35 hours per week) Clearance required: SC Clearance/ eligibility required Summary: To deliver the MoD's submarine and warship programmes, a significant programme of infrastructure investment is required on the Devonport site. The 'Major Infrastructure Projects' (MIP) Business Unit has been established to support this. One of the key scope elements within MIP is establishing a defuel capability for out of service submarines, which is delivered under the programme banner of 14 Dock Readiness. This work comprises of several interrelated projects to develop various multi-disciplinary infrastructure systems, with an overall value more than £100m. The Submarine Defuel Delivery Project (SDDP) sits within the Dock Readiness programme. SDDP provides the Reactor Access House (RAH) which supplies the necessary tools and systems to...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Jul 22, 2026  
Uranium Enrichment Specialist - Remote
PWHytek Ltd are currently recruiting for a number of Senior and Principal Engineers to support a major programme of work within the nuclear sector on a contract basis. We are looking to speak with experienced Mechanical, Process and EC&I Engineers who have a strong background in uranium enrichment, plant design and/or commissioning. This is an excellent opportunity to join a long-term programme supporting the delivery of highly complex nuclear facilities while working remotely. The Role Successful candidates will provide technical engineering support across the design, development and delivery of nuclear projects, working as part of multidisciplinary engineering teams within a highly regulated environment. Depending on your discipline and experience, responsibilities may include: * Delivering engineering and design solutions for complex nuclear facilities. * Supporting plant design activities across all project phases. * Providing commissioning support and...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Jul 22, 2026  
Mechanical Project Engineer
Project Engineer (Mechanical Bias) – AMP Project Location: East London Rate: £450–£500 per day (CIS/Self-Employed) Duration: 6–9 Months Start: ASAP We are recruiting for an experienced Project Engineer (Mechanical Bias) to join on the major upgrade works at a major Sewage Treatment Works, one of the UK's largest and most significant water infrastructure projects. This is an excellent opportunity to work on a flagship AMP7/AMP8 scheme, helping deliver major improvements to treatment capacity, resilience, and MEICA infrastructure at one of Europe's largest sewage treatment facilities. About the Project The client is delivering a substantial programme of works at a mojor STW, including: * New inlet works * Activated sludge plant upgrades * Aeration systems * Settlement tanks * Sludge treatment improvements * Major MEICA infrastructure works This is a technically focused engineering role, ideal for someone who enjoys coordinating engineering solutions and...
IR35 Status:
Unknown Status

CV-Library Beckton, Greater London Contractor
CL
Jul 22, 2026  
Senior Design Engineer
Senior Design Engineer (Hydraulic Installation) Location: Peterlee, UK Position Type: 12-Month Contract (Full-Time, 36.5 hours/week) Working Hours: Mon-Thu 8:00 AM - 4:30 PM, Fri 8:00 AM - 12:30 PM (with some flexibility) Pay Rate: Up to £39.00 per hour Work Arrangement: Fully onsite About the Role We are seeking an experienced Senior Design Engineer to join our Hydraulic Installation team in Peterlee. In this role, you will be responsible for the end-to-end design and development of hydraulic installation systems for heavy machinery, ensuring they meet high standards for performance, durability, and manufacturability. This is a high-impact position involving complex routing, simulation, and close collaboration with global teams, manufacturing plants, and external suppliers. Key Responsibilities Design and develop hydraulic installation systems using Creo. Perform basic structural analysis and finite element analysis (FEA) using Creo Simulate. Release new designs and...
IR35 Status:
Unknown Status

CV-Library Peterlee, County Durham Contractor
CL
Jul 22, 2026  
Mechanical Design Engineer
Role: Mechanical Design Engineer (Contract) Employment: Contract  Duration: 12 Months Location: Wolverhampton Rates: £55 - £60hr (Inisde IR35) THE ROLE - Mechanical Design Engineer Due to impressive project and program wins, we are seeking to recruit Mechanical Design Engineers to support our client's aerospace engineering operations. You'll need to have strong experience in both conceptual design and detailed drawing of components and assemblies, with experience in aerospace deemed highly valuable. This is an Inside IR35 position that will require on site working due to the nature of the work. DUTIES - Mechanical Design Engineer Design and develop mechanical components and assemblies Create accurate technical drawings and 3D CAD models. Apply GD&T and perform tolerance analysis Participate in DFMEA and risk identification activities. Present design concepts, progress updates and final designs to customers. Collaborate with internal stakeholders to ensure viable...
IR35 Status:
Inside IR35

CV-Library Wolverhampton, UK Contractor
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