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London mechanical engineer

159 mechanical engineer jobs found in London

CL
Feb 27, 2026  
Mechanical Engineer
Job Title: Intermediate/Senior Mechanical Engineer - 12 Month Contract or Permanent Location: Mostly remote (occasional travel to London) Contract Rate: £45-£53 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,...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Feb 25, 2026  
Mechanical Engineer
Mechanical Engineer / Plumber - Hospital Maintenance £220 per day | London Bridge | Start ASAP | Basic DBS Required A leading mechanical and plumbing contractor is looking for a Mechanical Engineer / Plumber to work on a hospital project near London Bridge. This is an ASAP start, initially for 1 month, with strong potential for ongoing work. Hours are 8am-5pm, paying £220 per day. The role will involve pipework remedials and general mechanical/plumbing maintenance within a hospital environment. Duties will include: Pipework remedials and general maintenance Tap, pipe, sink and valve replacements Using freeze kits and press-fit guns Working with water treatment systems and L8 compliance General mechanical/plumbing maintenance within a hospital setting Role details: Location: Hospital near London Bridge, London Start: ASAP Duration: Minimum 1 month, likely ongoing Hours: 8am - 5pm Rate: £220 per day To be considered, you will need: Proven experience as a Mechanical Engineer...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Feb 27, 2026  
Mechanical Engineer
Mechanical Engineer | Paddington, London Salary: Up to £45,000 per annum (DOE) Hours: Monday - Friday, 08:00 - 17:00 Location: Central Paddington (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...
IR35 Status:
Unknown Status

CV-Library West London, London Contractor
CL
Feb 21, 2026  
Senior Mechanical Engineer
Senior Mechanical Engineer Basildon, Essex (4 day/week on site) £63ph (Inside IR35) Initial 9 month contract **Please note we can only consider sole UK Nationals for this role** We are 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. What you'll do as a Senior Mechanical Engineer: 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...
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
Feb 20, 2026  
Senior Mechanical Engineer
Our client, a large Aerospace and Defence supplier is looking for a Mechanical Design Engineer to join them on a contract basis at their site in Basildon. Due to the nature of the project, applicants must hold the sole British nationality and hold SC Clearance. 6 month initial contract Location: Basildon, 4 day per week onsite Rate: £64.22 p/h UmbrellaKey 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...
IR35 Status:
Unknown Status

CV-Library Basildon, Essex Contractor
CL
Jan 18, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation based in Stevenage is currently looking to recruit 3x Mechanical Systems Engineers / Architects on an initial 12 month contract.  The role will be hybrid of being split between working from home and onsite.    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.    A background or knowledge of Systems Engineering and Supplier Management would be beneficial. Contract Duration: 12 Months initially and then ongoing and long-term thereafter. Hourly Rate: £65.00ph   Mechanical Systems Engineer / Architect Job Description:   We have an opportunity for an experienced Mechanical Architect to join the team. This exciting role is to gather and manage the missile mechanical architecture requirements to...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Feb 20, 2026  
Commissioning Engineer - Mechanical or Electrical
I am recruiting for a Commissioning Engineer to join a leading consultancy I have worked with for over four years. This is an ongoing freelance position with a business that has consistently received excellent feedback from the contractors I have placed there. The role offers the opportunity to work across a diverse project portfolio, including Aviation, Rail, and large-scale Commercial developments. You will be joining a specialist consultancy team where you will manage the transition from installation to handover. You will be responsible for ensuring all building services systems are tested, validated, and performing to the required standards. Roles and responsibilities: Oversee and witness the commissioning of mechanical or electrical systems (HVAC, BMS, Power, and Lighting Controls). Review and manage Commissioning Plans, Method Statements, and Site Progress Reports. Work closely with MEP contractors and clients to resolve technical issues on-site. Ensure all works comply...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Feb 05, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer - MEP London Contract (Outside IR35) Hybrid - 3 days a week in Office Rate: £45/hr - £50/hr A consultancy we are partnered with is looking for a contract senior mechanical design engineer to work on a contract basis in their London office. Consultancy or contractor background welcome, working on various sectors, notably commercial, residential and education. Proficiency in Revit desirable but not required. Contract length is like to be 6 months rolling. Looking to start someone end of Feb/beginning of March. If you are interested please apply with your CV
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Feb 12, 2026  
Temp Day Shift Mechanical Maintenance Engineer
Temp Mechanical day Shift Maintenance Engineer My client is currently recruiting for a day shift mechanical maintenance engineer. You will have your level 3 in either plumbing/mechanical/AC, with a proven track record in commercial maintenance. Sector: Health Duties will include all ppm and reactive maintenance on plant, pumps, motor's generator checks, ahu's, fan coils, ventilation, motors, general plumbing as well as ppm's on heating and cooling. Hours 7-7 4 on 4 off Days only Rate is 25-30p/h plus overtime If you are interested in this position, please e-mail your CV to Matt at Alex Young Recruitment
IR35 Status:
Unknown Status

CV-Library N18, Haselbury, Greater London Contractor
CL
Feb 26, 2026  
Electro Mechanical Design Engineer
Electro-Mechanical Design Engineer 📍 Hybrid role We’re looking for an experienced Electro-Mechanical Design Engineer to join our engineering team, working on the design and development of BMS peripherals and HVAC control products. This is a hybrid role offering a mix of hands-on engineering, design ownership, and cross-functional collaboration. You’ll play a key role in taking products from concept through to manufacture, supporting both new developments and existing product improvements. Key Responsibilities Design and develop electro-mechanical components and assemblies for BMS and HVAC control applications Create and maintain 3D CAD models and detailed drawings using SolidWorks (or equivalent CAD software) Work closely with electronics, firmware, and manufacturing teams to deliver robust, cost-effective designs Support prototyping, testing, validation, and design reviews Manage design changes, tolerances, and documentation throughout the product lifecycle Ensure designs meet...
IR35 Status:
Unknown Status

CV-Library Oxted RH8, UK Contractor
CL
Dec 19, 2025  
Tooling Design Engineer (Mechanical Design)
World Class Defence Organisation based in is currently looking to recruit 2x Tooling Design Engineer subcontractors.   This role would suit a Mechanical Design Engineer who has Tooling and Creo experience.  Previous experience of working in the defence or aerospace industry would be great.   Rate: £50.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bolton or Stevenage – depending on your preference   Hybrid / Remote working: The role will be a mix of onsite and remote working Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Tooling Design Engineer Job Description:   You will be part of a high performing team. You will be creating Tooling solutions on a wide variety of projects. This is a critical role collaborating with wider multi-disciplinary teams to understand...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Feb 27, 2026  
TBM Shift Engineer
TBM Shift Engineer Temporary Full-time. On-site. Are you a TBM Shift Engineer looking for a new opportunity? Do you have tunnelling experience working for a civil engineering contractor on infrastructure projects? Are you interested in working on an exciting new project on a long-term contract? If so, then we may have the right role for you! Our client is looking to add an experienced TBM Shift Engineer to their current team. You will be reporting to the Shift Manager for works on the Tunnel Boring Machine (TBM) during the shift as excavation continues. Job Details: Site-based engineering role supporting live TBM operations Involved in the day-to-day control and monitoring of excavation activities Working closely with TBM Shift Managers, TBM crews and engineering teams Shift-based role on a long-term tunnelling project Key responsibilities Ensure works are undertaken in accordance with approved RAMS Confirm excavation activities follow current operational instruction...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jan 30, 2026  
Project Construction Manager
We are currently undertaking the exciting project of building a 1700 m² house from the ground up. We are seeking a dedicated Project Manager to join our team. Key responsibilities: - oversee and coordinate all aspects of construction project, from initiation to execution and completion. - plan, blueprint reading, direct and manage the project, ensuring it stays on budget and schedule. - handle the preparation and review of project bids and the negotiation and management of subcontractor contracts. - ensure the successful execution of construction projects - execute the control and compliance with safety regulations, ensuring projects meet contractual and legal requirements. - work closely with stakeholders, including the client, architects, engineers, contractors and subcontractors, in order to define project objectives, establish timelines, allocate resources and manage budgets. Requirements and skills - Education in Civil Engineering, Construction management or Mechanical...
IR35 Status:
Unknown Status

CV-Library London, UK 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
Dec 28, 2025  
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
Feb 05, 2026  
Technical Author
World Class Defence Organisation is currently looking to recruit a Technical Author subcontractor on an initial 12 month contract.  The role will be predominately working remotely from home.   Rate: £43.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be 2 or 4 days per month in the office and the rest remote.  (some flexibility on this may be needed). Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: 2 Stage interview process. Initial Virtual or onsite – 2hrs. Author Test & meet the team - onsite for successful candidates.   Technical Author Job Description: To write technical documentation in Standard Generalised Mark-up Language (SGML), Extensible Mark-up Language (XML) and traditional formats for the Company's products in accordance with...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Feb 27, 2026  
Lead Commissioning Manager Building Services
Lead Mechanical or Electrical Commissioning Manager ( Data Centres ) - London - contract 6 month ++ OR permanent One of Europe's leading Building Services Commissioning management consultancies is urgently seeking good Commissioning Managers with a solid track record in Data Centre projects to join their ever growing team on a London DC project. We are looking for someone who can drive the trades on the project and chair the meetings to keep the project on track. You need to have good project management skills and great client communication skills. This role requires someone capable of leading the commissioning meetings and driving the process. Job Purpose Summary The role of our commissioning managers is to see that building services systems will be, are or have been put to work properly and in accordance with relevant requirements. Determining that this is the case could be achieved through any of the following: 1. Managing the commissioning process 2. Validating that the...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Feb 20, 2026  
multi skilled engineer 3 days per week
Multi-Skilled Engineer (Electrical Bias) – Contract We are seeking a Multi-Skilled Engineer with strong electrical engineering skills for a 3-month contract, working 3 days per week in London. The successful candidate will support planned and reactive maintenance across site and production equipment, ensuring safe and efficient operation. Key Responsibilities: Electrical fault finding and diagnostics Planned preventative and reactive maintenance Supporting mechanical maintenance where required Ensuring compliance with health & safety standards Requirements: Strong electrical engineering background (electrical bias essential) Multi-skilled with mechanical experience Relevant engineering qualifications Previous experience in a manufacturing or industrial environment preferred Contract Length: 3 months Working Pattern: 3 days per week Location: London
IR35 Status:
Unknown Status

CV-Library london, London Contractor
CL
Feb 13, 2026  
Senior HVAC Design Engineer
We are looking for an experienced Senior HVAC Design Engineer, in our London office of our Client, focusing on the Commercial sector witin their experienced team. You will have the opportunity to work on some of the most exciting and technically challenges projects within this fast paced sector. Our award winning international Client are currently involved in numerous projects, working both within the UK and across EMEA. Candidates will support the team in developing designs for mechanical distribution systems from CHW, HVAC, Fuel to LTHW Provide advice to clients regarding mechanical systems/requirements available to meet their business needs. Leading the design of Commercial Project mechanical systems and equipment (Building Services) Provide written reports of system options in the form of design development notes. Produce technical specifications for mechanical systems, ensuring compliance with relevant standards and client requirements Ensure coordination other...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Feb 26, 2026  
Foot Mobile Engineer
Job Title: Foot Mobile Electrical Engineer​ Location: Zones 1 - 3 (All Travel Covered)​ Salary: Up to £43,000 per annum​ Working Hours: Monday to Friday​ Benefits: Company tools and uniform provided ​ 18th Edition Wiring Regulations certification required​ Level 3 Electrical Installations qualification required 23 days plus bank holidays Overtime available 12 company training courses a year and offer for further trade training if candidate passes probation​ ​ Key Responsibilities: Conduct Planned Preventative Maintenance (PPM) and reactive maintenance across multiple commercial sites​ Perform electrical installations, fault finding, and repairs​ Ensure compliance with all relevant safety regulations and industry standards​ Maintain accurate records of all maintenance activities Participate in an on-call rota as required​ Essential Qualifications and Skills: 18th Edition Wiring Regulations certification​ Level 3 Electrical Installations qualification​ Proven...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
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