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Contractor 38
Engineering Outside IR35 mechanical design engineer

38 mechanical design engineer jobs found

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
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
Aug 14, 2026  
Design Engineer
Job Title: Design Engineer Job Type: Onsite Work Type: Contract Duration: 3 to 4 Months Hours: 37.5hrs per week Industry: Manufacturing/Medical Job Location: Gloucestershire Rate: £30.00/hr to £40.00/hr (Outside IR35, Ltd and Umbrella available) Profile – Design Engineer Our client is the world leader in the design and manufacture of precision products to the medical sector. They current require a contract Design Engineer to support the Development team through a busy time. Job Role – Design Engineer Reporting to the Product Development Manager the contract Design Engineer shall migrate existing AutoCAD drawing packages into SolidWorks. The role will involve creating, editing and managing 3D models and 2D manufacturing drawings from existing product information, ensuring all outputs meet company standards and are suitable for subcontract manufacture. Following initial training, the successful candidate will be expected to work independently, managing their workload with...
IR35 Status:
Outside IR35

CV-Library Gloucester, UK Contractor
CL
Aug 15, 2026  
Commissioning & Systems Completion Lead
Commissioning & Systems Completion Lead Position Type: Contract Location: Northumberland Categories: Engineering, CQV PM Group requires a Commissioning Lead will be responsible for monitoring the Principal Contractors (PC) commissioning process and execution of the scope being HVAC, mechanical, electrical, data, BMS, Business Technology (BT) and utility/sprinkler systems. The role ensures systems are commissioned safely, efficiently, timely and in compliance with Project URS, GMP, GxP, FDA, EU GMP, and project-specific requirements. The Commissioning Lead acts as the primary interface with the PC between construction, engineering, CQV, Business Technology (BT) and quality assurance personnel. The commissioning lead will also liaise with client operations/BT, and equipment vendors to assist in the delivery of operational and validated systems from installation through start-up and handover. Note that this role will be full time site based to monitor the progress....
IR35 Status:
Outside IR35

CV-Library North East, UK Contractor
CL
Aug 15, 2026  
Project Manager
New contract opportunity available for a senior level Project Manager to join a progressive Water Treatment consultancy firm in the Midlands. This is an exciting time to join the business and they are able to offer outside IR35 contracts, remote working and competitive daily rates. As this opportunity is remote, we can be flexible in location, so longs as applicants are situated in the UK and must have proof of right to work in the UK Purpose of contract: To lead the multidisciplinary design and delivery of wastewater treatment and infrastructure projects, taking responsibility for mechanical design and coordination across civil, electrical, and ICA disciplines. The role ensures robust, efficient, and compliant engineering solutions that meet client, regulatory, and sustainability requirements. Key Responsibilities of the Project Manager: Lead the design and delivery of wastewater treatment projects from concept to detailed design and construction support. Act as the technical...
IR35 Status:
Outside IR35

CV-Library Ilkley, West Yorkshire Contractor
CL
Aug 13, 2026  
Hardware Engineer
Location: UK Wide (Hybrid/On-site as required) Outside IR35 - Rate £45-£75 p/h Security Clearance: Must be eligible to obtain and maintain UK Security Clearance (SC) RC Fornax is looking for Hardware Engineer to join a team developing advanced underwater sensing and acoustic technologies. This is an excellent opportunity for an experienced hardware engineer to contribute to the development of innovative sonar and maritime systems used in challenging and mission-critical environments. The successful candidate will be involved throughout the engineering lifecycle, from requirements definition and system architecture through to integration, testing and verification. Key Responsibilities Develop and formalise hardware specifications for sonar and underwater acoustic systems. Define hardware requirements, interfaces, functionality and performance characteristics for sonar subsystems and associated equipment. Support system architecture activities through modelling, simulation,...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Aug 13, 2026  
Manufacturing Engineer
Manufacturing Engineer – Composites Location: Darwen, Blackburn Job Type: Permanent, 37 hours per week, working a 4-day week Rate: £40 - £50 per hour Outside IR35 - LTD/ Umbrella/ PAYE A well-established aerospace manufacturer with a strong reputation for producing advanced composite and metal components is seeking an experienced Manufacturing Engineer to join its engineering team. This is an excellent opportunity for a technically strong engineer to play a key role in improving manufacturing processes, supporting production, and helping deliver high-quality aerospace components in a fast-paced environment. The Role You will be responsible for developing, improving and supporting composite manufacturing processes to ensure products are made efficiently, cost-effectively and to the required quality standards. Working closely with design, production and quality teams, you will help refine methods across layup, curing, machining and bonding, while also supporting tooling and...
IR35 Status:
Outside IR35

CV-Library Blackburn, Blackburn with Darwen Contractor
CL
Aug 12, 2026  
Electrical Design Engineer
Electrical Design Engineer - Life Sciences London | Hybrid Working (Remote Considered) £43-£52 per hour 6-Month Contract (Temporary) | Outside IR35 An exciting opportunity has arisen for an experienced Electrical Design Engineer to join a leading Building Services consultancy delivering major life sciences and laboratory developments across the UK. This Electrical Design Engineer role is ideal for someone who enjoys designing complex electrical building servMSCices systems for highly serviced, technically demanding environments. You'll join a multidisciplinary team delivering large-scale life sciences projects from concept through to construction, working alongside some of the UK's leading contractors and design teams. The successful Electrical Design Engineer will play a key role in the delivery of high-value laboratory and research facilities, contributing to innovative engineering solutions across technically challenging developments. The Role As an Electrical Design...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 11, 2026  
Mechanical Handling Engineer
Mechanical Handling Engineer Outside IR35 – 12 months – Plymouth (3 days p/week on site) Job Description The Mechanical Handling Engineer will work collaboratively with the customer as part of the Mechanical Handling and Building Services teams, providing technical support for both nuclear and non-nuclear mechanical handling assets and facilities across the site. This includes, but is not limited to, cranes, lifting equipment, and maintenance facilities. The role involves supporting the Mechanical Engineering Lead in the delivery of key engineering projects, providing flexible technical support for the operation and maintenance of existing mechanical handling assets, and ensuring that mechanical aspects of facility modifications, redesigns, and new infrastructure are developed and delivered in line with operational requirements, safety standards, and regulatory compliance. Key Responsibilities * Support the Mechanical Engineering Lead and customer in understanding project...
IR35 Status:
Outside IR35

CV-Library Plymouth, Devon Contractor
CL
Aug 10, 2026  
Design Engineer
Design Engineer (12 Months +) We are supporting a London-based food manufacturing organisation with the appointment of a Design Engineer for a minimum of 12-months. This is a role that will be outside IR35. Role Overview Working closely with Project Managers and Engineers, you will be responsible for the creation, management, and coordination of engineering documentation, primarily via CAD. The role spans all project phases, from initial concept and design through to commissioning and closeout. Key Responsibilities Produce and develop detailed engineering drawings including PFDs, P&IDs, and equipment layouts Update existing drawings to reflect system modifications and enhancements Utilise AutoCAD Plant 3D in line with best practice to ensure efficient, usable models Work with point cloud data to extract geometry and support brownfield design Assess spatial constraints, interferences, and clashes within existing facilities Convert complex 3D data into clear, usable 2D...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 09, 2026  
Senior Civil Design Engineer
Job Title: Civil Design Engineer (Infra / Non-Infra) Salary: Contract: up to £60 per hour (outside IR35) Permanent: £45,000 - £60,000 (dependent on experience) Location: Leeds Type: Contract or Permanent (hybrid working available) About the Role: Our client is seeking a Civil Design Engineer with experience across either infrastructure or non-infrastructure water projects to support delivery within the Yorkshire Water framework. This is a varied role covering both clean and wastewater projects, ranging from network and pipeline upgrades through to treatment works and facility-based civils. You will be involved across the full design lifecycle including feasibility, optioneering, detailed design, and construction support. About the Client: Our client is a well-established engineering consultancy operating within the UK water and infrastructure sector. They are delivering long-term secured work across key utility frameworks, with a strong pipeline of both network and...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Aug 09, 2026  
Civil Design Engineer
Civil Design Engineer | Water AMP 8 Contract: Long‑term, Outside IR35 Location:  Maidstone, Kent (Flexible Hybrid) Our client in water is seeking an experienced Civil Design Engineer to support the design and delivery of infrastructure and non‑infrastructure projects across a broad programme of work. This long‑term contract offers the opportunity to play a key role in developing, reviewing, and coordinating civil engineering designs within a fast‑paced, essential services environment. Hybrid working is available, with regular presence required at the Chatham office. Key Responsibilities Produce, review, and develop civil engineering designs for water and wastewater infraastructure Prepare design calculations, technical drawings, and specifications in line with industry and regulatory standards Support feasibility assessments, optioneering, and early‑stage technical input Work collaboratively with multidisciplinary teams including process, mechanical, electrical, and delivery...
IR35 Status:
Outside IR35

CV-Library Maidstone, UK Contractor
CL
Aug 14, 2026  
Lead Electrical Design Engineer
Lead Electrical Design Engineer Start date: ASAP Length: 6-12 months rolling contract Contract: up to £550 per day (outside IR35) Location: South England / Greater London Turner Lovell is recruiting for a Lead Electrical Design Engineer to join one of the UK's leading power infrastructure contractors, delivering major transmission and distribution projects across a long-term electricity framework. This role would suit an experienced Electrical Design Engineer from a Primary, Protection & Control, or broader HV substation design background who enjoys taking ownership of project delivery rather than producing detailed designs day to day. Key Responsibilities Lead the electrical design delivery of a portfolio of HV substation and power infrastructure projects. Coordinate multidisciplinary engineering teams, including Electrical, Civil and Protection & Control designers. Act as the primary technical point of contact with clients throughout the project lifecycle. Review...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
Safety Assurance Engineer - ETCS
Matchtech are working with a key client in Derby to support the recruitment of x2 Safety Assurance engineers to work on ETCS projects. These roles are 6 month initial contracts (with potential to extend) offering hybrid working and operating outside IR35. Role Definition This exciting role offers an opportunity to provide technical leadership and innovation within compliance in the context of an ETCS on-board retrofit project. Working as part of a close-knit team, the Safety Assurance Engineer shall be the referent on safety and assurance for the UK specific application of a ETCS On-Board retrofit project. The Safety Assurance Engineer will report to the Safety Assurance Manager. Key Accountabilities Produce and manage safety documentation Safety Management Plan System Definition Project Hazard Record GASC SASC IHA FMECA Support approval process, to obtain APIS for each train class Work directly with the Safety Assurance Manager, the assessors (AsBo, ISA), the Design &...
IR35 Status:
Outside IR35

CV-Library Derby, Derbyshire Contractor
CL
Aug 13, 2026  
Senior Civil Engineer (Part time)
Drainage Design Engineer (Contract) 📍 London Consultancy | Fully Remote Available 💰 £40 - £47 per hour 🏠 Outside IR35 ⏱️ 20-30 Hours Per Week 📅 2-Year Contract An established engineering consultancy is seeking an experienced Drainage Design Engineer to support the delivery of residential, commercial and hotel developments across the UK. The Role Surface water and foul water drainage design Drainage calculations and technical reports SuDS design and drainage strategies Use of Causeway Flow Planning and detailed design stages Requirements Strong drainage design experience Proficient with Causeway Flow Experience on residential, commercial or hotel projects Able to work independently ✅ Outside IR35 ✅ Fully Remote Working Available ✅ Long-Term Contract ✅ Immediate Start Available Interested? Get in touch for further details
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
Senior Civil Engineer
Infrastructure & Drainage Edinburgh £38-£48 per hour – Outside IR35 Contract: rolling contract An established civil engineering consultancy is looking for an experienced Contract Civil Design Engineer to support a busy pipeline of residential infrastructure projects across the UK. This role focuses on drainage and highways design, taking schemes from early feasibility through to detailed design and technical approvals. The Role • Deliver civil infrastructure and drainage design for residential developments • Design foul and surface water systems using one of: MicroDrainage / Causeway Flow/Site 3D OR Infodrainage • Produce levels, earthworks and estate road designs using Site 3D • Support projects through planning, detailed design and approvals • Prepare drawings and calculations for S104, S38 and S278 submissions • Coordinate with local authorities, statutory undertakers and project teams • Manage workload independently while contributing to wider project delivery...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
Aug 13, 2026  
Remote Civil Engineer
Residential Infrastructure & Drainage 📍 UK-based | Fully Remote (no site presence required) 💷 £40 - £50 per hour – Outside IR35 🕒 Contract: rolling contract An established civil engineering consultancy is looking for an experienced Contract Civil Design Engineer to support a busy pipeline of residential infrastructure projects across the UK — working fully remotely. This role focuses on drainage and highways design, taking schemes from early feasibility through to detailed design and technical approvals. The Role • Deliver civil infrastructure and drainage design for residential developments • Design foul and surface water systems using one of: MicroDrainage / Causeway Flow/Site 3D OR Infodrainage • Produce levels, earthworks and estate road designs using Site 3D • Support projects through planning, detailed design and approvals • Prepare drawings and calculations for S104, S38 and S278 submissions • Coordinate with local authorities, statutory undertakers and...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
Aug 13, 2026  
Senior Civil Engineer
Senior Civil Engineer – Contract Highways & Infrastructure Design Guildford (Hybrid Working) An established engineering design consultancy is seeking an experienced Contract Senior Civil Engineer to support the delivery of highways and infrastructure design across a diverse portfolio of projects. The role is based from the Guildford office with a hybrid working arrangement, offering flexibility while remaining closely integrated with the design team. Projects span residential, commercial, solar and wider energy developments, providing a varied and technically engaging workload. The Role Lead and deliver highways and infrastructure design works across multiple sectors Take responsibility for S278 highway design, including technical approvals and coordination Produce and review detailed designs, drawings and calculations using Civil 3D Manage schemes from feasibility through to detailed design and delivery Liaise with local authorities, clients and internal project...
IR35 Status:
Outside IR35

CV-Library Hampshire, UK Contractor
CL
Aug 13, 2026  
Senior Civil Engineer
Senior Civil Engineer – Contract Infrastructure & Drainage | Residential & Mixed-Use An established engineering design consultancy is seeking a Senior Civil Engineer (Contract) to support a strong and ongoing pipeline of residential and mixed-use development projects across the UK. This is a hands-on design role, suited to an experienced civil engineer who can take schemes from feasibility through to detailed design and technical approvals. The Role Lead delivery of civil infrastructure and drainage design for residential and mixed-use developments Produce and review detailed designs for highways, drainage, levels and earthworks Prepare drawings, calculations and supporting information for S38, S104 and S278 approvals Coordinate with local authorities, statutory undertakers and internal project teams Provide technical input and guidance across multiple live schemes Manage workload independently while supporting wider project delivery About You We would be...
IR35 Status:
Outside IR35

CV-Library Chelmsford, UK Contractor
CL
Aug 13, 2026  
Manufacturing Engineer - Contract
Contract Manufacturing Engineer   12-Month Contract Outside IR35 £35.00–£45.00 per hour DOE Immediate Start We are currently seeking an experienced Manufacturing Engineer to join a leading engineering business operating within the Aerospace / Space sector on an initial 12-month contract. This is an excellent opportunity to support the introduction of new products, improve manufacturing processes, and work on technically challenging projects within a highly regulated, precision engineering environment. As a Manufacturing Engineer, you will be responsible for developing and improving manufacturing methods, supporting production, and ensuring products are manufactured efficiently while maintaining the highest quality standards. Key Responsibilities for the appointed Contract Manufacturing Engineer Develop and implement manufacturing processes and work instructions. Support New Product Introduction (NPI) and production readiness activities. Create and maintain manufacturing...
IR35 Status:
Outside IR35

CV-Library Luton, Bedfordshire, South East Contractor
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