Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Refine by IR35 Status
Unknown Status 224 Inside IR35 55 Outside IR35 41
Refine by Categories
Construction 99 Information Technology 53 Automotive 25 Other 20 Manufacturing 19 Admin-Clerical 5
Marketing 5 Facilities 4 Management 4 Media-Journalism 4 Customer Service 2 Distribution-Shipping 2 Science 2 Supply Chain 2 Warehouse 2 General Labor 1 Government 1 Legal 1
More
Refine by Job Type
Contractor 320
Engineering mechanical engineer

320 mechanical engineer jobs found

CL
Jun 25, 2026  
Senior Mechanical Engineer
Are you a Senior Mechanical Engineer with experience in plant equipment and dry process systems? Can you lead design delivery while ensuring compliance with stringent industry and safety standards? Do you have the technical expertise to oversee complex engineering projects from concept through to installation and commissioning? The Opportunity This is a fantastic opportunity to join a leading engineering consultancy supporting high-profile projects within a highly regulated environment. You will play a pivotal role in delivering robust mechanical design solutions for plant and equipment. We would also welcome applications from these industries Candidates with experience in nuclear, defence, oil and gas, process engineering, chemicals, or heavy manufacturing are encouraged to apply. This role would suit candidates working in these roles This opportunity would suit individuals currently working as a Senior Mechanical Engineer, Mechanical Design Engineer, Plant Engineer,...
IR35 Status:
Unknown Status

CV-Library Warrington, UK Contractor
CL
Jun 25, 2026  
Mechanical Engineer - Certification & Validation
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 work as part of a multi-disciplinary team to work on the certification and validation activities to allow a new product to be delivered into service with international customers. Responsibilities: • Support the Mechanical Certification Lead Engineer on generating evidence statements against Mechanical Requirements. • Interpreting Test reports from subsystem, inert and live munition testing • Interfacing with the Systems team, Architecture team, test team and others to gather the evidence required. • Planning and reporting on own day-to-day activities to meet project milestones. Skillset/experience required: • Required: o Experience writing concise evidence statements against technical requirements o...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Jun 24, 2026  
Mechanical Engineer
We are looking for a Mechanical Engineer to join the team of an established company in the Roehampton area. This role is offering a temporary position and the opportunity to gain experience in a reputable, recognised company. Mechanical Engineer * Monday to Friday / 40 hours * Temp to perm * Roehampton (mobile) * £24–26ph paid weekly As a Mechanical Engineer, you will be: * Carrying out PPM works and maintenance testing on the mechanical systems * Trouble shooting and fault finding * Maintenance of AHU/FCU’s, filter changes etc * Responsible for reactive and breakdown repairs * Plumbing repairs and pipe work To be successful as a Mechanical Engineer, you will need: * NVQ Level 3 or Level 2 plus experience * Experience in a Mechanical Bias, Plumbing Engineer, M&E Engineer, Commercial Plumber, or Multiskilled Engineer role * AP experience needed * Healthcare experience ideal If this role is of interest, please apply directly to this advert
IR35 Status:
Unknown Status

CV-Library Roehampton, Greater London Contractor
CL
Jun 21, 2026  
Mechanical Engineer - Certification & Validation
Mechanical Engineer - Certification & Validation Location: Stevenage (Hertfordshire) Duration: 6 months (extension possible) Rate: £50 p/h Umbrella IR35: Inside Clearance: SC (BPSS to start possible) / UK Eyes Only (UKEO) Working pattern: 2 days minimum onsite, remainder remote Overview 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 work as part of a multi-disciplinary team to work on the certification and validation activities to allow a new product to be delivered into service with international customers. Responsibilities: Support the Mechanical Certification Lead Engineer on generating evidence statements against Mechanical Requirements. * Interpreting Test reports from subsystem, inert and live munition testing * Interfacing with the Systems team,...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jun 20, 2026  
Mechanical Engineer – Certification & Validation
World Class Defence Organisation is currently looking to recruit a Mechanical Engineer – Certification & Validation subcontractor on an initial 6 month contract. Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: 2 days a week onsite, the rest working remotely from home. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Mechanical Engineer – Certification & Validation 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 work as part of a multi-disciplinary team to work on the certification and validation activities to allow a new product to be delivered into...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 17, 2026  
Senior Mechanical Engineer
Company Description Assystem is an international company with one mission: accelerate the energy transition around the world. Every day, our 8,000 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition. Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering. To ensure a viable, efficient, and reliable energy...
IR35 Status:
Unknown Status

CV-Library Warrington, UK Contractor
CL
Apr 11, 2026  
Mechanical Engineer
World Class Defence Organisation based in Bolton, Lancashire is currently looking to recruit a Mechanical Engineer subcontractor on an initial 12-month contract.   Hourly Rate: £35ph Overtime Rate: Hours worked over 37 hours per week, are worked at the Overtime rate of time and a quarter.   Contract Duration: 12 Months (initially and then ongoing and long-term thereafter) Mechanical Engineer Job Description: We are seeking a Mechanical Engineer to join our Calibration & Maintenance Team. The work is extremely varied, interesting and challenging. You will be joining a dynamic and focussed team, responsible for the support of the manufacturing function across all stages of product assembly integration and test. The team are self-motivated and work directly with support functions and engineers across the company to resolve routine and non-routine tasks arising within the business. Responsibilities: The main aspects of the role will be as technical support for the metrology...
IR35 Status:
Unknown Status

CV-Library Bolton, UK Contractor
CL
Jun 25, 2026  
Senior Engineer - Mechanical - Auxiliaries
Senior Engineer - Mechanical - Auxiliaries Location: Glasgow Job Type: Contract, Full-Time hours Primary Industry: Marine Engineering Secondary Industry: Nuclear, Energy, Oil and Gas, Building Services (commercial) Salary: £30.23 - £40.64 per hour Job Description The Senior Engineer – Mechanical – Auxiliaries is responsible for providing technical expertise and engineering support in the design, development, installation, and maintenance of mechanical auxiliary systems within energy and oil and gas projects. This role ensures that mechanical auxiliary equipment functions efficiently, reliably and complies with relevant industry standards and safety regulations. The role involves close collaboration with multidisciplinary teams to deliver engineering solutions that meet project objectives and timelines. Job Duties Lead the mechanical engineering design and review of auxiliary systems including, but not limited to, pumps, compressors, fans, heat exchangers, and associated...
IR35 Status:
Unknown Status

CV-Library Glasgow, UK Contractor
CL
Jun 24, 2026  
Mechanical Design Engineer
About this Position: A Mechanical Design Engineer is required to join a collaborative engineering team on a 3 month contract. The role involves producing 3D CAD designs and detailed technical drawings for fabricated structures, assemblies, and vehicle system integrations. You will support projects from concept through to manufacture, with opportunities to contribute to challenging engineering solutions in the military and heavy equipment sectors. Job Responsibilities: * Produce 3D CAD models and detailed engineering drawings to BS8888 standards using Autodesk Inventor. * Design structural and fabricated components with consideration for Design for Manufacture. * Prepare engineering calculations and support analysis activities. * Manage project workloads and deliver work to agreed deadlines. * Present design solutions and participate in design reviews with stakeholders. * Support manufacturing, assembly and testing activities. * Maintain CAD data, drawings and bills of...
IR35 Status:
Unknown Status

CV-Library Northampton, West Northamptonshire Contractor
CL
Jun 21, 2026  
Mechanical Project Engineer
Mechanical Project Engineer CONTRACT 6XMONTHS Rugby My client is a leading engineering and infrastructure contractor that has been awarded by Severn Trent to deliver critical infrastructure upgrades to the sewage treatments works known as AMP8. They require as Mechanical Project Engineer who excels at the implementation of design, procurement, and package management. You will lead the early-stage mechanical design integration with the supply chain and delivery team, translate those designs into procurement packages, and serve as the mechanical package Lead for subcontractors as the project moves from the design phase into manufacturing and site delivery, installation and commissioning. Any previous experience working on AMP 6 or AMP 7 projects would be of particular interest. Responsibilities Core Responsibilities 1. Early-Stage Design & Integration • Internal & External Coordination: Lead the integration of internal mechanical design with specialist third-party...
IR35 Status:
Unknown Status

CV-Library Rugby CV23, UK Contractor
CL
Jun 19, 2026  
Mechanical Process Project Engineer
Mechanical Process Project Engineer Pharmaceutical - Food and Beverage - Dairy & Nutrition Long Term Contract - Cork NIRAS are a specialist engineering consultancy; focussed on the design and delivery of advanced, process engineering driven projects, providing Project Management, Engineering Design, Project and Managed Service resources to the Brewing, Distilling, Food & Beverage and Pharmaceutical Manufacturing industries across Ireland and internationally. One of Europe's largest consulting firms NIRAS employs over 3000 permanent staff and over 25,000 experts across our network including its 4 offices in Ireland and 51 offices in 32 countries across the globe. Role Due to expansion and internal progression, NIRAS requires an experienced Mechanical Process Project Engineer to support one of our clients, a major food products producer in the delivery of process optimization, continuous improvement, and capital project initiatives on site at their state of the art...
IR35 Status:
Unknown Status

CV-Library Cork, County Cork Contractor
CL
Jun 13, 2026  
Senior Mechanical Design Engineer
Senior Consultant - Engineering Design Location: London - 5 days a week 40 hours per week (hybred 3 days in the office min) Contract: Freelance / Contract / 6 Months + £315 per day Limited company Engineer Innovation From Concept to Manufacture We are working with a leading product innovation consultancy seeking an experienced Senior Consultant for Mechanical Engineering Design, to deliver complex engineering projects from concept through to production in the Medical and consumer product world. This role suits a technically strong, commercially aware engineer with experience leading projects, solving complex design challenges, and managing client relationships. Key Responsibilities Lead client communication and project delivery Interpret briefs, define requirements, and manage plans, budgets, and timelines Develop innovative engineering concepts and assess feasibility Deliver robust designs using 3D CAD, FEA/CFD, mathematical modelling, and prototype testing Support...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 07, 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
Jun 07, 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 Bolton, UK Contractor
CL
Jun 07, 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
Apr 02, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer (Military Packaging Design) 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.  Other CAD Package skills are also fine.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: Hybrid, 2-3 days min on site. Although this can change due to workload. Can be continually reviewed. 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 work closely with other functional...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Feb 15, 2026  
Mechanical Design Engineer
We are currently looking for a experienced Mechanical Design Engineers to work for one of our clients in Burton on Trent. The client is a market-leading manufacturer of specialist equipment to a range of industry sectors including heavy engineering and aerospace. Due to the specialist nature of the products theis Mechanical Design Engineers role is both interesting and varied and will include working on the design and creation of large scale fabrications and structures together with associated pipework and equipment. Based in their offices in Burton on Trent, but with a requirement to travel to customers both in the UK and overseas as required, it will include the generation of engineering diagrams, for use on their equipment and will involve working on specific projects from conception to completion. The main duties will include: * 2D and 3D engineering design proposal drawings * General Arrangement drawings * Fabrication details drawings * Pipework layouts and...
IR35 Status:
Unknown Status

CV-Library DE14, Burton upon Trent, Staffordshire Contractor
CL
Jun 25, 2026  
Principal Mechanical Design Engineer
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 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. • Planning and reporting on own day-to-day activities to meet project milestones. • Gain clarification of and help to...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Jun 25, 2026  
Mechanical Development Engineer
A contract position Inside IR35 On site in West Sussex Our client, a leading consultancy in the automotive sector, is currently seeking a Mechanical Development Engineer to join their team. This contract role demands a solid understanding of automotive components, systems, and associated vehicle parts. Proven Powertrain experience is essential and ideally knowledge on transmissions. The role involves close collaboration with OEMs, suppliers, and test, design, and analysis teams to define testing plans, analyse results, and recommend design changes. Projects may require working independently or as part of a cross-functional international team. Key Responsibilities: Managing teams and preparing proposals Understanding product development processes for powertrains and transmissions Developing system and component specifications Conducting rig and system validation testing Utilising instrumentation and data capture tools Conducting FMEAs and preparing DVPs (Design Validation...
IR35 Status:
Inside IR35

CV-Library West Sussex, UK Contractor
CL
Jun 25, 2026  
Senior Engineer - Mechanical - Auxiliary Systems (V06040)
Our client, a key player in the Defence & Security sector, is seeking a Senior Engineer specialising in Mechanical Auxiliary Systems for a 12-month contract. The role is based in Scotstoun, with the requirement to be onsite 1-2 days a week. This engaging position focuses on the design, integration, and technical assurance of auxiliary systems within a complex marine platform. Key Responsibilities: Prepare specifications and develop Stage 1 Auxiliary System design solutions, ensuring compliance with quality and technical standards. Support and participate in the Zonal Integration process, ensuring 3D model designs reflect design intent and meet relevant standards and requirements. Develop, maintain, and modify engineering processes and procedures in response to technical developments and operational needs. Conduct technical analyses and investigations, evaluating and selecting technical options, and preparing reports with recommendations. Serve as the specialist point of...
IR35 Status:
Unknown Status

CV-Library Glasgow, UK Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software