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London mechanical engineer

410 mechanical engineer jobs found in London

CL
Apr 19, 2026  
Mechanical Engineer - Building Services
Dedicated to sustainable development, Arup is a collective of designers, consultants and experts working globally. At Arup you will have the opportunity to collaborate on ambitious projects - delivering remarkable outcomes for clients and communities, and to do socially useful work that has meaning. Arup's purpose, shared values and collaborative approach has set it apart for over 75 years, and now is your opportunity to join. Job description - the role AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. We partner with Arup to support their contingent recruitment processes. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. On Behalf of Arup, we are...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 15, 2026  
Mechanical Engineer
Job Title: Mechanical Maintenance Engineer (Temp) Location: Central London Contract Length: 3 Months Rate: Negotiable (Dependent on Experience) The Role We are currently recruiting for an experienced Mechanical Maintenance Engineer to join a well-maintained office building in Central London on a 3-month temporary contract. Working on behalf of the landlord, you will be responsible for delivering both planned and reactive mechanical maintenance, ensuring all systems are operating efficiently and in line with compliance standards. Key Responsibilities * Carry out planned preventative maintenance (PPM) on mechanical systems * Attend and resolve reactive maintenance issues * Fault finding on mechanical plant and associated systems * Maintenance of HVAC systems, pumps, motors, valves, and pipework * Monitor plant performance and report any issues * Ensure all works are completed in line with health & safety regulations *...
IR35 Status:
Unknown Status

CV-Library EC2N, Cornhill, Greater London Contractor
CL
Apr 18, 2026  
Mechanical Engineer College Site
Ace Academics Consultancy Building Services Engineer (Mechanical Bias) – Education Estate, London Join a leading education provider in London as a Building Services Engineer. Hands-on role covering HVAC, boilers, chillers, and plant maintenance. Perfect for engineers with college, university, or large estates experience. Key Highlights * 🚀 Exciting opportunity in a college/university estate environment * 🔧 Hands-on role with HVAC, boilers, chillers, pumps, and fans * 🛠 Mix of planned preventive maintenance (PPM) and reactive repairs * 📑 Strong focus on health & safety compliance and accurate record-keeping * 👥 Work with a supportive estates & facilities team plus external contractors * 📈 Opportunities for training, development, and long-term career growth The Role We are looking for an experienced Building Services Maintenance Engineer (Mechanical Bias) to join a busy education estate in London. You will be...
IR35 Status:
Unknown Status

CV-Library South East London, Greater London Contractor
CL
Apr 18, 2026  
Level 3 Mechanical Engineer
Exciting Opportunity for a Level 3 Mechanical Engineer! Are you a passionate Mechanical Engineer looking to take your career to the next level? We have the perfect opportunity for you! Join our dynamic team in Lewisham, Greater London, for a temporary contract lasting 12 months. What You'll Do: Conduct thorough testing and analysis to ensure peak performance Collaborate with cross-functional teams to deliver outstanding projects Troubleshoot and resolve engineering challengesWhat We're Looking For: A Level 3 qualification in Mechanical Engineering Strong analytical skills and attention to detail Proficiency in CAD software and engineering tools Excellent communication skills and a team-oriented mindsetWhy Join Us? Be part of a vibrant team that values creativity and collaboration Work on exciting projects that make a difference Enjoy a competitive salary and flexible working arrangements Opportunities for professional development and growth If you're ready to bring your...
IR35 Status:
Unknown Status

CV-Library Lewisham, London Contractor
CL
Apr 15, 2026  
Mechanical Engineer
Mechanical Engineer | Wembley, North West London Salary: Up to £42,000 oer year Location: Wembley (Excellent transport links) Are you a hands-on Mechanical Engineer looking for a stable, site-based role in the heart of London? We are looking for a skilled professional to join our facilities team in Paddington to maintain and optimize the mechanical systems of a premier commercial site. The Role You won't just be "fixing things"-you'll be the technical backbone of the building. You will be responsible for the planned preventative maintenance (PPM) and reactive repairs of all mechanical plant equipment. Key Responsibilities: Maintenance of HVAC systems, pumps, motors, and pressurized systems. Basic plumbing repairs and water treatment monitoring (L8). Diagnosing faults and implementing long-term technical solutions. Managing sub-contractors and ensuring health & safety compliance on-site. Maintaining accurate digital logs of all works completed What We're Looking For...
IR35 Status:
Unknown Status

CV-Library Wembley, London Contractor
CL
Apr 16, 2026  
Senior Mechanical Engineer
Up to £64.81 per hour umbrella (Inside IR35) Up to 4 days per week on site 6 Month contract (initially) Our client is currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes.  Key Responsibility Areas: Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM system (Teamcenter). Contribute to reviews of Mechanical designs in accordance with...
IR35 Status:
Inside IR35

CV-Library Basildon, UK Contractor
CL
Apr 18, 2026  
Mechanical Engineer
Our client, a specialist in the water treatment sector, is currently seeking a Mechanical Engineer for a contract position. This role involves ensuring the integrity and efficiency of mechanical processes within water treatment facilities. Key Responsibilities: Reviewing mechanical designs to ensure they meet industry standards and client requirements Providing expert advice to clients on mechanical engineering solutions Policing and monitoring compliance of water companies with mechanical standards and practices Collaborating with cross-functional teams to optimise process performance Generating detailed reports on mechanical process performance and recommended improvements Conducting on-site inspections to validate mechanical installations Supporting project management teams with technical expertise and insights Job Requirements: Experience in mechanical engineering within the water sector Strong understanding of mechanical processes and design principles Ability to review...
IR35 Status:
Unknown Status

CV-Library Chichester, West Sussex Contractor
CL
Apr 17, 2026  
Mechanical Engineer
Our leading Maritime client is seeking 2 x Mechanical Engineers on a long term contract basis. The ideal candidates will be required to carry out a wide range of mechanical engineering duties such as: * Inspection of products and parts * Improve methodology * Identify and analyses complex engineering challenges, ensuring practical and cost-effective outcomes * Good understanding of Lathes/Mills * Ability to test and validate all mechanical parts and components This is a 6 month+ contract that is likely to be extended for the suitable candidates. Hours: 37.5hrs (+ overtime may be available) Salary: £22.00p/h (PAYE)
IR35 Status:
Unknown Status

CV-Library Portsmouth, Hampshire Contractor
CL
Apr 14, 2026  
Mechanical Engineer - Level 3
Mechanical Engineer (Level 3) HMP Hollesley Bay, Woodbridge Permanent | Band 9 | 25 days annual leave + bank holidays Your new company You'll be joining the estates and maintenance team at HMP Hollesley Bay, supporting the safe and compliant operation of the site. Working within the Operations department, you'll help ensure the prison's mechanical systems are maintained to a high standard and meet all statutory requirements. Your new role As a Level 3 Mechanical Engineer, you will deliver planned and reactive maintenance across plumbing, heating, and water services. You'll carry out installations, testing, commissioning, fault finding, repairs, and quality control inspections-including confined space and working-at-height tasks. You'll record all work accurately and support the overall delivery of site service levels.The role includes supervising prisoners during work activities, escorting contractors, maintaining tool control, and ensuring adherence to Health & Safety and...
IR35 Status:
Unknown Status

CV-Library Woodbridge, Suffolk Contractor
CL
Apr 15, 2026  
Senior Mechanical Engineer (Weights Engineering)
Expleo is seeking a highly skilled Senior Mechanical Engineer (Weights Engineering) to support one of our premium automotive clients on a 12‑month contract basis. This is an exciting opportunity to play a key role in the delivery of next‑generation vehicle programmes within a world‑class engineering environment. Location: Gaydon, UK Contract: 12‑month contract About the Role As a Senior Mechanical Engineer within the On‑Cycle Weights Engineering team, you will own and drive the vehicle mass attribute throughout the programme lifecycle. Working with cross‑functional teams, you will ensure weight targets are understood, balanced, and achieved, while maintaining full transparency at all programme gateways. This role is ideal for an engineer with strong analytical capability, excellent data management skills, and a passion for delivering technically robust, compliant, and competitive vehicles. Key Responsibilities Lead coordination of vehicle weight data across functional...
IR35 Status:
Unknown Status

CV-Library Warwickshire, UK Contractor
CL
Apr 19, 2026  
Senior Mechanical Engineer
Are you an experienced Senior Mechanical Engineer with nuclear experience wanting to work on a large scale project? Do you enjoy delivering high?quality mechanical design solutions? Are you confident managing complex engineering packages from concept through to commissioning? The Opportunity A leading engineering consultancy is seeking a Senior Mechanical Engineer to support NW nuclear projects UK. You’ll play a key role in ensuring mechanical deliverables meet the highest standards while guiding and developing junior engineers. This is a chance to make a significant impact within a forward-thinking team driving the transition to a low-carbon future. This role would suit candidates working in these roles Mechanical Design Engineer, Project Mechanical Engineer, Lead Mechanical Engineer, Mechanical Package Engineer, Mechanical Systems Engineer, Senior Design Engineer or Mechanical Consultant Your duties and responsibilities will be Overseeing mechanical engineering output to...
IR35 Status:
Unknown Status

CV-Library Mere, UK Contractor
CL
Apr 17, 2026  
Mechanical Engineer - Maintenance
Job Advert: Building Engineering - (long term Temporary Contract)Senior Mechanical Engineer - Local Authority Planned and Reactive maintenance commercial, community, leisure and industrial buildings We're looking for someone who knows their way around heating systems, ventilation, boilers, plant rooms and mechanical installations - and who enjoys solving problems, working independently, and taking pride in getting things right. What You'll Be DoingThis role is all about keeping buildings safe, compliant and running smoothly. You'll be:✅ Carrying out inspections on heating, ventilation and mechanical systems✅ Diagnosing faults and recommending repairs✅ Supporting both reactive and planned maintenance jobs✅ Putting together reports, estimates, and specifications (we'll support you with templates and guidance)✅ Supervising contractors and checking work meets the right standard✅ Helping plan maintenance programmes and improvements✅ Working with asset data, drawings and condition...
IR35 Status:
Unknown Status

CV-Library Derby, Derbyshire Contractor
CL
Apr 15, 2026  
Mechanical Engineer
Blue Water Recruitment are currently looking for a Mechanical Engineer in Swansea, starting as soon as possible for 3 months, temp to perm after. This contractor will only pay Umbrella. You will need 6 point PPE, Hat, 4pt chin strap, Glasses, Gloves, Hi-vis, boots and a standard DBS. NVQ Level 2/C&G n relevant trade. We are looking for someone with experience in plumbing and ventilation. Will be reactive and maintenance activities rather than installing. If you're intrested please send your CV in, thank you
IR35 Status:
Unknown Status

CV-Library SA12, Port Talbot, Neath Port Talbot Contractor
CL
Apr 16, 2026  
Mechanical Engineer
An established engineering company are looking for a Mechanical Engineer to join their team on a contract basis. You will take ownership of defining, refining, and continuously optimising testing and validation methods to ensure that all products consistently meet stringent mechanical, environmental, optical, and electronic performance requirements, while also driving improvements that enhance reliability, compliance, and overall product quality throughout the development lifecycle. Essential Requirements Experience in testing environments with opto‑mechanical components. Strong knowledge of mechanical, electronic, and optical engineering principles. Skilled in interpreting engineering drawings, standards, and technical documentation. Competent in data acquisition, analysis, and standard business software (MS Office). Able to maintain accuracy, work independently or within teams, and follow QMS-driven test processes. Responsibilities: Ability to develop and execute test...
IR35 Status:
Unknown Status

CV-Library Wales, UK Contractor
CL
Apr 18, 2026  
Maintenance Mechanical Engineer
Maintenance Mechanical Engineer -Leeds - LS1 - X1 Job Available A Maintenance Mechanical Engineer is required for a static site role in Leeds (LS1), working within a healthcare environment. This is a long-term position with opportunities for permanent employment. Shift Pattern: 4 days (6:00am - 6:00pm), 4 days off, 4 nights (6:00pm - 6:00am), 4 days off - rolling shift pattern providing 24/7/365 cover. Pay Rate: £20.36 per hour (inclusive of holiday pay) Duties will include: Leading the shift team and providing support to working colleagues Carrying out maintenance, repairs, testing and inspection of building, mechanical and electrical services, associated systems, plant and equipment in line with relevant standards and procedures Participating in the rotating shift pattern to provide continuous service cover Providing cover for absent colleagues where required Working in accordance with safe working practices within statutory, NHS, Trust and Company guidelines...
IR35 Status:
Unknown Status

CV-Library Leeds, West Yorkshire Contractor
CL
Apr 18, 2026  
Maintenance Mechanical Engineer
Vacancy Created 26/03/2026 ​AWC Staff Services are looking for Maintenance Mechanical Engineer to work at Leeds Oncology Ward. Must have mechanical qualification. This is a shift position consisting of 4 days 6am till 6pm, 4 off then 4 nights 6pm to 6am. + 15% shift allowance. You must have mechanical qualifications to apply for this role. Responsibilities: * Be able to maintain, service and repair a wide range of the building services like Heating and domestic water services, General Electrical services such as lighting and power, Air handling units, Low voltage electrical distribution system and switchgear, Emergency standby generating plant, Fire alarm systems and emergency lighting, Electrical control systems and Building Management Systems * Be able to work on Boilers Heat exchangers Pumps & valves Pipework systems Hot/cold water systems * Work alongside a dynamic maintenance team to deliver the required services, ensuring the Hospital is maintained to the...
IR35 Status:
Unknown Status

CV-Library Leeds, West Yorkshire 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
Mar 05, 2026  
Mechanical Project/Design Engineer
Mechanical Project/Design Engineer Opportunity – Leading Renewables Contractor - London MK Search are working with a market leading renewables and decarbonisation M&E contractor who are currently looking to recruit a Mechanical Project / Design Engineer to join their growing team. This is an excellent opportunity for an early-career engineer looking to develop their technical and project experience within a supportive and professional environment. The company in question have recently won a variety of new contracts across London. The Role Working alongside experienced engineers and project teams, you will assist with the design, coordination, and delivery of decarbonisation on leisure, commercial, education and residential projects. The role offers exposure to both project and design work, with opportunities to build hands-on experience across a range of mechanical systems. The Ideal Candidate We are keen to speak with candidates who have: * A degree or diploma in...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 19, 2026  
Lead Mechanical Commissioning Engineer
Astute's EPC Contract Power team is partnering with a leading EPC Contractor to recruit a Lead Mechanical Commissioning Engineer to join their fast paced team on a 7 months initial contract basis for their Waste to Energy facility based in Chester, Cheshire. The Lead Mechanical Engineer comes with a day rate from £500.00 to £600.00 per day. Role responsibilities and key skills for the role: Hands-on commissioning of mechanical/process components and systems such as, fuel supply system, firefighting and fire protection systems, cooling, water systems and HVAC Carrying out and managing piping networks cleaning using various methods such as pigging, air blowing, flushing, etc. Carrying out testing on mechanical systems and equipment, as well as system optimization and troubleshooting and filling-in the respective commissioning documentation and protocols Cooperation with internal team members, guidance and coordination of external partners and sub-contractors, interacting with...
IR35 Status:
Unknown Status

CV-Library Cheshire, 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
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