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Contractor 97
Engineering London mechanical engineer

97 mechanical engineer jobs found in London

CL
Jun 10, 2026  
Mobile Mechanical Engineer
Mechanical Maintenance Engineer -  Mobile - Temp ongoing - FM Service Provider - South and North London sites Are you a Mechanical Maintenance Engineer looking for a new challenge? Are you looking for work in and around South / North London ? Are you looking for temporary work?  If the answer is yes, then read on... A Fantastic opportunity to work for a leading FM Service Provider. CBW is currently looking for a Mobile Mechanical / Plumbing Maintenance Engineer to be covering multiple Residential buildings around South and North London. The successful candidate will be Mechanically / Plumbing biased (NVQ, C&G) with a proven track record in Commercial / Residential building maintenance. Working with the maintenance team on-site, He or she will be required to carry out Plumbing and Mechanical maintenance to the following. Duties & Responsibilities: Lighting (Small installation, Fault-finding, Lamping, Changing ballast, Control panel, Power distribution) Emergency...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 08, 2026  
Mechanical Engineer
Job Title: Intermediate/Senior Mechanical Engineer - 12 Month Contract or Permanent Location: London based Contract Rate: £45-£50 per hour outside IR35 or Permanent Salary: £50-£60k About the Role: We are seeking an experienced Mechanical Engineer to join a dynamic team focused on innovative engineering solutions in the water and environmental sector. This role offers the flexibility of primarily remote work, with occasional visits to the London office, and provides the opportunity to work on cutting-edge projects in a collaborative environment. Key Responsibilities: Design, develop, and optimise mechanical systems and components. Prepare detailed engineering drawings, specifications, and documentation. Work closely with project teams to deliver solutions from concept through to installation and commissioning. Support project planning, risk assessment, and troubleshooting mechanical issues. Ensure compliance with relevant industry standards, codes, and best practices....
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jun 12, 2026  
Mechanical Engineer
Job Title: Mechanical Engineer Location: Millwall, Greater London Remuneration: £29.00 per hour Contract Details: Fixed Term Contract - 3 weeks, Full Time Responsibilities: Design and develop mechanical systems and components to meet project specifications. Conduct feasibility studies and cost analyses for proposed engineering solutions. Collaborate with cross-functional teams to ensure project milestones are met. Perform testing and validation of mechanical designs to ensure safety and performance standards. Troubleshoot and resolve engineering issues as they arise during the project lifecycle. Prepare detailed documentation of engineering processes and results. Contribute to continuous improvement initiatives within the engineering department. Join our dynamic team as a Mechanical Engineer, where your expertise will play a crucial role in delivering innovative solutions. With a competitive hourly rate of up to £29.00, this fixed-term contract offers a great opportunity for...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Jun 14, 2026  
Mechanical Engineer
Ready to take the lead on a high-profile mechanical engineering project within the UK’s nuclear sector? Do you have a strong background delivering engineering solutions in regulated environments? Are you confident leading design activities while collaborating across multi-disciplinary teams on complex programmes? The Opportunity An exciting contract opportunity has arisen with a leading engineering consultancy supporting a nationally significant nuclear programme. This role offers the chance to work on complex mechanical systems in a highly regulated, safety-critical environment. We would also welcome applications from these industries Defence, oil and gas, power generation, petrochemical, and aerospace sectors. This role would suit candidates working in these roles Senior Mechanical Engineer, Mechanical Design Engineer, Lead Mechanical Engineer, Project Mechanical Engineer, Mechanical Systems Engineer, Principal Mechanical Engineer, Design Engineer, Mechanical...
IR35 Status:
Unknown Status

CV-Library Reading, UK Contractor
CL
Jun 13, 2026  
Lead Mechanical Engineer
Lead Mechanical Engineer Location: Reading, UK (Onsite) Contract: 12 Months (Inside IR35) Hours: 40 hours per week (Core hours: 09:00 - 15:30) Working Pattern: 4 days onsite, 1 day WFH About the Role We are seeking an experienced Lead Mechanical Engineer to join a Joint Venture (JV) Project Management Team during the pre-FEED stage of a major project, based in Reading. Key Responsibilities Lead Mechanical Engineer will provide engineering leadership aligned with project objectives and risk strategies Work closely with PMT and contractors to ensure risks are clearly understood and managed Drive value improvement and capital efficiency initiatives within design development Recommend and evaluate design alternatives to optimise cost and schedule Own and develop engineering standards, specifications, and philosophies Ensure technical definitions meet pre-FEED / FEED maturity expectations Support preparation of FEED/EPC scopes and participate in technical bid evaluations Lead...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Jun 11, 2026  
Principal Mechanical Water Design Engineer
Principal Mechanical Engineer Shape the Future of Our Cities and Environments Our client is seeking an experienced and dynamic Principal Mechanical Engineer to join their Design & Advanced Technology (D&AT) team. As part of a talented, multi-disciplinary group, you will be at the forefront of delivering innovative and iconic projects within the Water market. This is an opportunity to work on cutting-edge engineering projects that have a global impact, contributing to critical UK infrastructure both domestically and internationally. This role offers you the chance to make a significant impact, playing a key role in transformational programmes while delivering industry-leading solutions throughout the project lifecycle. Location: Hybrid working available (3 days per week office/site-based) Type: Contract Rate: £68 per hour Your Role As a Principal Mechanical Engineer, your responsibilities will include: ·Leading a team of Mechanical engineers in delivering technical...
IR35 Status:
Unknown Status

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Jun 11, 2026  
Principal Mechanical Water Design Engineer
Principal Mechanical Engineer Shape the Future of Our Cities and Environments Our client is seeking an experienced and dynamic Principal Mechanical Engineer to join their Design & Advanced Technology (D&AT) team. As part of a talented, multi-disciplinary group, you will be at the forefront of delivering innovative and iconic projects within the Water market. This is an opportunity to work on cutting-edge engineering projects that have a global impact, contributing to critical UK infrastructure both domestically and internationally. This role offers you the chance to make a significant impact, playing a key role in transformational programmes while delivering industry-leading solutions throughout the project lifecycle. Location: Hybrid working available (3 days per week office/site-based) Type: Contract Rate: £68 per hour Your Role As a Principal Mechanical Engineer, your responsibilities will include: ·Leading a team of Mechanical engineers in delivering technical...
IR35 Status:
Unknown Status

CV-Library Cambridge, UK 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
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
Mar 04, 2026  
Mechanical Design Engineer (Military Packaging Design)
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.         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 - Military Packaging Design 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 10, 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
Jun 11, 2026  
Principal Mechanical Design Engineer
An opportunity has arisen with my client for a Principal Mechanical Design Engineer to join them on a 6 -month contract. As the Principal Mechanical Design Engineer you will develop products to meet customer's needs. You will perform a range of engineering activities including progressing developmental designs into production environments and working with suppliers on technical queries. Role: Principal Mechanical Design Engineer Pay: £40 -£50 per hour via umbrella Location: Stevenage or Bristol Contract: 6months Hours: Monday - Friday, 37 hours per week Security Clearance: Security Cleared however can start on BPSS, UK Eyes only 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...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
May 23, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 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 or Bristol – depending on your preference 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: 6 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Apr 03, 2026  
Pipe Stress Engineer
Pipe Stress Engineer Location - Leatherhead Work pattern – 4 days office – 1 day remotely. Rate - £60 p/hr – Outside IR35 Duration – 6 months Start - ASAP Job Responsibilities: During Detail Engineering, perform Piping Stress Analysis of high temperature piping systems using a combination of practical experience and commercially available software. Implement project specifications. Work as part of a team to ensure Isometrics are being checked in a timely manner Ensure a consistent and compliant approach to project execution. FEA Analysis of specialist piping components. Analysis of new and existing piping systems on Greenfield and Brownfield Projects. Work individually or as part of a team in the home office and abroad. Communicate effectively with other engineering disciplines. Committed to multi-centre project execution. Adhere to the companies WAY engineering standards and procedures as well as provide input to their development and enhancement. Skills / Experience:...
IR35 Status:
Outside IR35

CV-Library Leatherhead, UK Contractor
CL
Jun 13, 2026  
Senior Engineering Draughtsperson
Senior Engineering Draughtsperson / Mechanical Design Draughtsperson Location: Stevenage, Hertfordshire (minimum 2 days/week onsite, remainder remote; more onsite initially to get up to speed) Duration: 6 months Rate: £43-£45 per hour (Umbrella) IR35: Inside IR35 Clearance: SC clearance required to start (UKEO) Overview A leading organisation within the Defence & Security sector is looking for an experienced Senior Engineering Draughtsperson to support the development of 2D and 3D mechanical definitions for complex products. You'll work closely with multi-disciplinary engineering teams to deliver high-quality technical documentation and drawing packs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the engineer, quality assessing the 3D models you receive for a variety of defence products. Appointments will be made at an appropriate level based on...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jun 13, 2026  
Mechanical Design Draughtsman
Inside IR35 An opportunity to become a member of Europe’s No. 1 Missile Systems company as a design draughtsperson in the mechanical engineering function, you will work closely with a wide range of project teams to develop definitions to meet our manufacturers and customer’s needs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the engineer, quality assessing the 3D models you receive for a variety of defence products. Appointments will be made at an appropriate level based on skills and experience. Please bring examples of 2D draughting work to show in the interview Skillset/experience required: • Ideally Degree, HND, or HNC in Mechanical Engineering (or equivalent) with relevant industry experience. • Excellent knowledge of BS8888 Technical product documentation and specification, ISO 1101 Geometrical product specifications, ISO 5459 Datum and...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 12, 2026  
Mechanical Design Draughtsperson
World Class Defence Organisation is currently looking to recruit a Mechanical Design Draughtsperson subcontractor on an initial 6 month contract. Rate: £45.00 per hour Location: Stevenage Hybrid / Remote working: 2 days a week likely onsite.  The rest working 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 Design Draughtsperson Job Description: An opportunity to become a member of Europe’s No. 1 Missile Systems company as a design draughtsperson in the mechanical engineering function, you will work closely with a wide range of project teams to develop definitions to meet our manufacturers and customer’s needs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Mar 04, 2026  
RF Designer
World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit an RF Design Engineer subcontractor on an initial 12 month contract.    This role would suit a candidate who comes from a strong background working as an RF Designer, Microwave Design Engineer or RF Systems Engineer.  Any previous experience of Advanced Design System (ADS) or Cadence would be great. Hourly Rate: £75ph (Umbrella) Contract Duration: 12 Months (initially and then ongoing and long-term thereafter) RF Design Engineer Job Description: The successful candidate will be the designer for specific RF electronics designs. Interfaces to various stakeholders, such as the Datalink core team, Design Authority and other functional entities will need to be managed effectively to ensure the designs are delivered in a timely manner and will integrate to the other parts of the system Responsibilities: The role is substantially technical and hand on testing and proving is essential....
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Jun 09, 2026  
Multi Skilled Maintenance Engineer
Are you a dedicated and experienced Multi skilled Maintenance Engineer with proven working knowledge of both electrical and mechanical systems? We are seeking a highly competent and motivated Multi skilled Maintenance Engineer to join our team on a temp ongoing basis. You will be instrumental in ensuring the continuous, and efficient operation of the plant and equipment, site facilities and infrastructure during the working shift. Location: DS Smith South Mills, The Ridgeway, Blunham, Bedford MK44 3PH, United Kingdom Hours: (6am-6pm days, 6pm-6am nights including weekends.) Salary: £57k A Maintenance Engineer at DSS Blunham is a technical professional responsible for minimising downtime by performing real-time troubleshooting, emergency breakdown responses, and routine maintenance. Responsibilities: * Breakdown Response: React quickly to equipment failures and production interruptions to minimize downtime. * Maintenance Execution: Complete Planned Preventative...
IR35 Status:
Unknown Status

CV-Library Blunham, Central Bedfordshire Contractor
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