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Engineering 25 Construction 10 Information Technology 8 Other 2 Automotive 1
Outside IR35 Contractor mechanical design engineer

47 mechanical design engineer jobs found

CL
Apr 08, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Position: Mechanical Design Engineer Location: Castle Donington - Hybrid/Flexible Contract: Outside IR35 Type: Full-Time The Role This is a contract outside IR35 role working on a project involving designing a range of turbomachinery related components. Key Responsibilities: Create detailed 3D models and assemblies using Siemens NX. Generate engineering drawings. Perform engineering design calculations eg tolerance stack-up analysis & GD&T. Preparation of engineering design reports. Engage with suppliers and lead design for manufacturing activities. Ensure designs meet industry standards, customer specifications, and regulatory requirements.Required qualifications and experience: Bachelor's degree in Engineering. Experience designing turbomachinery, particularly blades/turbines. Experience using BS8888 and/or ASME Y14.5 Proficiency in NX software is essential. Strong skills in mechanical calculations and GD&T are essential....
IR35 Status:
Outside IR35

CV-Library Castle Donington, Leicestershire Contractor
CL
Apr 08, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Derbyshire Rate: £40 - £42 per hour (Ltd – Outside IR35) Contract: 3 – 6 month initial contract – likely to extend Immediate Start Our client is looking for an experienced professional to take a lead role in managing the full design process—from initial concept through to final delivery. This is a unique opportunity to contribute to high-impact projects within a fast-paced, collaborative engineering environment. You'll use tools like CAD and advanced engineering software to validate calculations, support testing, and oversee project execution, working closely with cross-functional teams to ensure quality, efficiency, and client satisfaction at every stage. What Our Client is Looking For: A hands-on background in fabrication and structural engineering Proficiency in engineering calculations – using Mathcad, Excel, and hand calculations Expertise in acoustics, airflow, and thermal systems Experience with both large and small companies,...
IR35 Status:
Outside IR35

CV-Library Derbyshire, UK Contractor
CL
Apr 08, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer Location: Manchester (2 to 3 days a week in office) Contract: 12 month contract Rate: £355 to £445 per day (outside IR35) An established engineering design consultancy is seeking an experienced Senior Mechanical Design Engineer to support the delivery of projects across regulated clean and wastewater projects in the UK. The Projects you'll be working on Varied projects across the UK water industry, including: Various UMON projects in Sewage Treatment Works Pumped storm storage for CSOs and Sewage Treatment Works Key Responsibilities Provide design deliverables that satisfy safety and quality requirements. Produce design calculations and drawings for the water industry Direct and develop CAD technicians and more junior designers and graduates. Design in compliance with relevant technical, professional and group standards. Required Qualifications & Experience min 10 years' mechanical design experience in the UK water industry...
IR35 Status:
Outside IR35

CV-Library Stretford, Greater Manchester Contractor
CL
Apr 11, 2026  
Senior Project Engineer
ADDISON PROJECT PLC – Senior Project Engineer, Thornton-Cleveleys 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. Role: Senior Project Engineer (Contract outside IR35) Location: Thornton-Cleveleys Contract: 12 months Start Date: Spring 2026 WORKSCOPE Addison...
IR35 Status:
Outside IR35

CV-Library Thornton-Cleveleys, Lancashire Contractor
CL
Apr 10, 2026  
Senior Design Engineer - Driveline and Transmissions
A contract position Outside IR35 Hybrid working in Warwickshire Senior Design Engineer (Driveline and Transmissions) for a contract position. Proven Mechanical Design experience on Automotive Transmission and Driveline Components is essential. Key Responsibilities: Designing mechanical components through concept, definitive, and detail design phases. Conducting detailed mechanical design work including 3D modelling, basic stress calculations, FMEA's, 2D layouts, 2D detailing, and tolerance stacks. Agreeing design approaches with the project Chief or Lead Designer. Creating 2D drawings for manufacture or purchase, assembly drawings, and bills of materials. Ensuring design meets system and component specifications, along with fit and function within other systems. Collaborating with manufacturing and process engineers to ensure products are designed for manufacture and assembly. Reporting progress on assigned tasks to the project management teams, chief designer, or engineering...
IR35 Status:
Outside IR35

CV-Library Warwickshire, UK Contractor
CL
Apr 09, 2026  
Civil Engineer
Job Title: Civil Engineer Location: Semi- hybrid role- sites in and around the Southampton area/ home based Duration: Long term contract (outside IR35) Salary: c£450 per day We are seeking on behalf of our large Construction Client, a Civil/ Mechanical Engineer with Planning experience, ideally within water treatment or a comparable industry. This is a 6-month rolling contract role (outside IR35) based in the Southampton area/ home based. Experience: * Civil/ Mechanical Engineer with Planning experience * Proficient in Primavera. * Site Based Experience. * NEC Contract Awareness. * Water treatment or comparable industry experience highly beneficial. * Ability to build Schedule from Scratch, if possible, using Design Drawings - Preferred. • Civil/ Mechanical Engineer • Planning experience required • Outside of IR35 • 6 x month rolling contract • Semi-hybrid role, sites in and around the Southampton area/ home based If you feel this opportunity to be a strong match for your...
IR35 Status:
Outside IR35

CV-Library SO15, Southampton, Hampshire Contractor
CL
Jan 21, 2026  
Senior HVAC Design Engineer
We are working with this leading multi national data centre and mission critical specialist who are working on schemes across UK and europe. With data centres being crucial components of today's infrastructure, supporting everything from business to public services. Operators must ensure the longevity, efficiency, and sustainability of their sites while optimizing them for mission-critical tasks. The teams are at the forefront of designing innovative and energy-efficient data centres, ensuring that our clients meet their goals of performance, cost-efficiency, and sustainability. The Opportunity Join our international and multidisciplinary team of passionate design engineers and help us create high-quality, sustainable, and innovative data centre structures. You will work on medium to large-scale mission-critical projects, covering all stages of design - from concept to construction supervision and handover. As part of an interdisciplinary team of architects, advisors &...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Principal Structural Engineer
Principal Structural Engineer Location: Manchester (Hybrid working, 3 to 4 days a week onsite) Contract: 12 month contract Rate: £400 to £490 per day (outside IR35) We are currently recruiting for a Principal Structural Engineer to join a growing engineering consultancy delivering major infrastructure projects across the rail and water sectors. This is an excellent opportunity to work on technically challenging projects while leading structural design delivery within an experienced multidisciplinary team. The Role As a Principal Structural Engineer, you will be responsible for providing technical leadership and ensuring high-quality structural design delivery across a range of infrastructure projects. You will work closely with clients, project teams, and junior engineers to develop safe, efficient, and compliant structural solutions. Key responsibilities include: Ensuring the design team produces deliverables that meet safety and quality requirements Approving design...
IR35 Status:
Outside IR35

CV-Library Stretford, Greater Manchester Contractor
CL
Apr 12, 2026  
Data Platform Consultant (SC Cleared)
Data Platform Consultant (SC Cleared) Corsham (Wiltshire) 6 Month Contract £450/day (Outside IR35) Data Platform Consultant needed with active SC Security Clearance and strong Power BI, Tableau + AWS Cloud experience. 6 Month Rolling Contract based in Corsham (Wiltshire). Start ASAP in March/April 2026. Hybrid Working - 3 days/week remote (WFH) + 2 days/week working from the office in Corsham (Wiltshire). A chance to work with a leading global IT + Digital transformation business specialising in large-scale Government projects: Project Objective: design, build + implementation of a cloud based Data Analytics platform to provide data workflow, data visualisation + dashboard solutions. Key Skills: Tableau, Power BI + Apache Superset dashboard + data visualisation tools. AWS Cloud Infrastructure environments including: AWS Glue, S3 Buckets, Athena + Serverless data pipelines. Python and R-style workflow development environments. SQL querying + data transformation...
IR35 Status:
Outside IR35

CV-Library Corsham, UK Contractor
CL
Apr 12, 2026  
Senior Machine Learning Engineer
Senior Machine Learning Engineer 6 month contract Based in Bristol Offering circa £75ph Outside IR35 Do you have experience designing, building, and optimising ML models? Do you have experience in Python and ML frameworks? 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 Senior Machine Learning 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. Do you the nature of the work you will be invoved in, you will be required to go through MOD SC clearance. You will be involved in: Design, build, and optimise machine learning models, including NLP, computer vision, and predictive analytics Own the ML lifecycle from data preparation through training, evaluation, and...
IR35 Status:
Outside IR35

CV-Library Bristol, UK Contractor
CL
Apr 12, 2026  
Senior Software Engineer
Senior Software Engineer 6 month contract Based in Bristol Offering £60ph Outside IR35 Do you have experience in version control and configuration management (Git, AWS)? Do you have experience in Python(pytest)? 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 Senior Software 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. Do you the nature of the work you will be involved in, you will be required to go through MOD SC clearance. You will be involved in: Take ownership of specific software work packages, including low-level planning, delivery, and reporting Design, implement, document, and test software modules and components Peer review code, application design,...
IR35 Status:
Outside IR35

CV-Library Bristol, UK Contractor
CL
Apr 12, 2026  
HV Design Engineer
I'm recruiting for a HV Design Engineer to work on a long contract outside of IR35 to work with a leading international engineering and consulting group. They work in close partnership with clients to solve complex challenges around the movement of people, goods, and services-delivering innovative, resilient infrastructure solutions. With a strong focus on future-ready design, they are at the forefront of developing smarter, more efficient infrastructure that responds to evolving technologies, changing behaviours, and increasing demand. Their approach puts people at the heart of design, combining technical excellence with a collaborative, forward-thinking culture. With ambitious growth plans in the UK, this is an excellent time to join the business as they continue to expand their footprint and reputation across the energy and infrastructure sectors. Hybrid working based out of offices in either London, Birmingham, York, Manchester, Edinburgh or Reading. They are seeking a...
IR35 Status:
Outside IR35

CV-Library Greater Manchester, UK Contractor
CL
Apr 12, 2026  
Senior Software Engineer - Python / Docker
Location: Bristol or Southampton (20% onsite) Duration: 6 month contract Rate: £61.90ph LTD (Outside IR35) Role details: Our client, a prominent player in the Defence & Security sector, is seeking a Senior Software Engineer with expertise in Python, Docker, and Cyber Security for a 6-month contract based in Bristol or Southampton. The role involves a hybrid working model with approximately 20% onsite presence. Key Responsibilities: Take ownership of specific software work packages, including low-level planning, delivery, and reporting, with the ability to work independently and autonomously. Possess a strong understanding of microservice software architecture. Design, implement, document, and test software modules and components. Peer review code, application design, and test results to ensure compliance with standards and governance. Troubleshoot complex issues and provide technical guidance to engineers. Mentor and support junior developers, sharing knowledge and best...
IR35 Status:
Outside IR35

CV-Library Bristol, UK Contractor
CL
Apr 12, 2026  
Software Engineering Lead - Python, C#, .NET
Location: Bristol (20% onsite) Duration: 6 month contract Rate: £81.75ph LTD (Outside IR35) Role details: Our client, a prominent entity in the Defence & Security sector, is currently seeking an experienced Lead Software Engineer to provide hands-on leadership across a high-priority software delivery programme. Based in Bristol, this contract role requires a self-starter who can swiftly comprehend complex problem domains, translate requirements into actionable deliverables, and drive engineering teams to successful outcomes. Key Responsibilities: Delivery & Execution Own end-to-end technical delivery across the programme. Make time-critical delivery decisions in the absence of programme leadership. Break down high-level requirements into structured deliverables for engineering teams. Sequence work, set priorities, and maintain delivery plans. Act as escalation point for blockers, risks, and technical issues. Drive tangible progress across multiple engineering and...
IR35 Status:
Outside IR35

CV-Library Bristol, UK Contractor
CL
Apr 12, 2026  
Lead Network Architect
Job Title: Lead Network Architect Contract Dates: ASAP - 24/08/2026 Location: Ashby Outside IR35 Role Description: This role is for a Network Comms Architect, capable of developing a networks design for various projects. The role will involve taking approved template network architectures and customizing them for the requirements of a project, focusing on that project’s connectivity and cybersecurity requirements along with the performance characteristics of the application system hardware. The jobholder will be capable of building and maintain strong communication links with telecoms specialists and project delivery teams and will learn to interpret the views of these group and influence delivery strategy, based on the needs of these stakeholders. The Network Comms Architect will report to the Design Manager and will participate with, and contribute to, the project to achieve the maximum output in producing outline and detailed networks design from the resource available....
IR35 Status:
Outside IR35

CV-Library Ashby-de-la-Zouch, Leicestershire Contractor
CL
Apr 12, 2026  
Senior Software Engineer - SC Cleared
Senior Software Engineer Rate: £450 a day IR 35 Determination: Outside IR35 Location: Southampton Working Pattern: 20% onsite Clearance: SC Clearance required Stack overview: Python (including pytest), git, Docker and AWS with prior experience building full stack Flask You will join a global defence technology consultancy and take ownership of specific software work packages, including low level planning, delivery, and reporting, with ability to work independently and autonomously. You will have strong understanding of microservice software architecture, and design, implement, document and test software modules and components. What you'll bring Strong technical ability with proven experience delivering software components and modules. Ability to work confidently, strategically and autonomously Ability to balance hands-on coding with document writing and planning session participation Your skills and experience: Proficiency in Python (including pytest), git, Docker and...
IR35 Status:
Outside IR35

CV-Library Southampton, Hampshire Contractor
CL
Apr 12, 2026  
Contract Senior Civil Infrastructure Engineer
Contract Senior Civil Infrastructure Engineer - Drainage Design London Immediate Start Hybrid working offered 6 month assignment c£45-48 p/h Ltd Outside IR35 Contract Senior Civil Infrastructure Engineer (Drainage Design) We are working with a well-established Civil/Structural Engineering Consultancy in London who are looking to hire a Contract Senior Civil Infrastructure Engineer for a 6 month contract. Our client is a top 10 London consultancy who have built their reputation on working on interesting, challenging and complex projects. They have worked on a number of well known major buildings across the UK along with designing all the associated roads, drainage and infrastructure that accompany these buildings. Your role will be to produce technical drainage design schemes for a variety of major infrastructure projects across London using Microdraiange. Any previous Civil 3D experience would be advantageous. Immediate start for the right person. Rates of between £45-48...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Senior Software Engineer - SC Cleared
Senior Software Engineer Rate: £450 a day IR 35 Determination: Outside IR35 Location: Bristol Working Pattern: 20% onsite Clearance: SC Clearance required Stack overview: Python (including pytest), git, Docker and AWS with prior experience building full stack Flask You will join a global defence technology consultancy and take ownership of specific software work packages, including low level planning, delivery, and reporting, with ability to work independently and autonomously. You will have strong understanding of microservice software architecture, and design, implement, document and test software modules and components. What you'll bring Strong technical ability with proven experience delivering software components and modules. Ability to work confidently, strategically and autonomously Ability to balance hands-on coding with document writing and planning session participation Your skills and experience: Proficiency in Python (including pytest), git, Docker and AWS...
IR35 Status:
Outside IR35

CV-Library Bristol, UK Contractor
CL
Apr 12, 2026  
Electrical Design Engineer
Are you an Electrical Design Engineer looking for your next contract opportunity? If so, please read on... Location: Gloucester Duration: 6 month initial Rate: £43-48 per hour (Outside IR35) We're working with a leading consultancy delivering major data centre projects and are looking for an Electrical Design Engineer to join the team on a contract basis. This is a great opportunity to get involved in large-scale, mission-critical facilities, working alongside experienced multidisciplinary teams in a fast-moving environment. Essential Skillset: Electrical Design Engineer with data centre / mission-critical experience Strong background in power systems and resilience strategies Experience with tools such as AutoCAD, Revit, ETAP, Amtech, SKM or similar Strong communication skills and a proactive approach Key responsibilities: Electrical design from concept to detailed design LV/HV systems, UPS, generators, switchgear, and power distribution Producing calculations,...
IR35 Status:
Outside IR35

CV-Library Gloucester, Gloucestershire Contractor
CL
Apr 11, 2026  
Senior Civil Engineer
A well-established, design-led civil engineering consultancy is looking to appoint an experienced Contract Senior Civil Engineer on a long-term, Outside IR35 basis. This is a fully remote role with a strong pipeline of secured work across commercial, industrial and data centre developments. The Role You’ll take ownership of infrastructure packages from concept through detailed design, with a particular focus on: Detailed levels strategy Surface & foul drainage design Drainage slope design and optimisation External works coordination Technical delivery for planning and construction stages Projects include large commercial schemes, industrial developments and major data centre infrastructure. Software MicroDrainage (essential) What We’re Looking For Proven UK development infrastructure experience Strong background in commercial / industrial schemes Confident working autonomously in a remote environment Able to deliver technically sound, buildable drainage and...
IR35 Status:
Outside IR35

CV-Library Kent, UK Contractor
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