140 mechanical engineer jobs found in London

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,...

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 for 6 months. 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, ideally exp with AHU's, FCU's Role details: Location: Hospital near London Bridge, London Start: ASAP Duration: 6 months Hours: 8am - 5pm Rate: £220 per day To be considered, you will need: Proven experience as a Mechanical Engineer / Plumber in maintenance or remedial...

We are looking for a Mechanical Engineer to join the team of an established FM company in the Westminister 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 Westminister (mobile) £24-25ph paid weekly via umbrella Perm salary = £38k 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 Mechanical bias, Plumbing engineer, M&E engineer, M&E engineer, commercial eplumber, Multiskilled engineer role If this role is of interest, please apply directly to this advert

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...

We are looking for an exceptional and very technically strong Mechanical Building Services Project Engineer with experience of working on large size multi-unit residential and mixed use residential/commercial developments. This is a long term contract position based in Central London, SE1. Our client is a specialist M&E Contractor. This role is with the established Mechanical arm of the business. The position reports to the Contract Director. You will be responsible for overseeing Mechanical Building Services Engineering on the Project. We are looking for a practically minded and technically strong Engineer who can liaise effectively with the consultant, client and on site teams, and maintain a calm and pragmatic approach to ensure the technical success of Mechanical Building Services Installation. This is an Engineer not a Project Manager role although is a comparable level within the company structure. We are looking for a Technical, site-based Mechanical Engineer who knows...

Job Title: Mechanical Shift Engineer​ Location: Lewisham​​ Working Hours: 4 on 4 off Days Only - 7am - 7pm​ Role Overview: We are seeking a skilled and proactive Multiskilled Electrical Engineer to join our team in a commercial office environment located in Tottenham. The ideal candidate will have a strong electrical bias, with the ability to perform both planned and reactive maintenance tasks.​ Key Responsibilities: Responsible for ensuring the maximum reliability and optimal performance of all plant machinery and mechanical systems. This role balances high-level strategic planning with hands-on technical leadership to minimize unplanned downtime and extend asset lifecycles. The successful candidate will lead preventive and predictive maintenance (PdM) initiatives, utilizing data-driven techniques such as vibration analysis and thermography to preempt mechanical failures. You will serve as the primary technical authority during equipment breakdowns, performing Root Cause...

Job Title: Mechanical Design Engineer Location: Essex (5 days per week onsite) Contract: 6 Month Contract IR35 Status: Outside IR35 Rate: £35–£45 per hour Overview We are looking for a Mechanical Design Engineer to support the design and development of mechanical systems and equipment. You will work as part of a team of design engineers producing mechanical designs, drawings, and documentation for industrial machinery and equipment. Key Responsibilities * Design mechanical parts, assemblies, and equipment layouts * Produce manufacturing drawings and supporting documentation including BOMs and assembly drawings * Maintain and update existing machine designs and mechanical documentation * Work closely with internal teams including manufacturing and engineering * Ensure drawings and documentation are controlled and updated throughout the project lifecycle * Support equipment upgrades and modifications where required Technical...

Our client is a well-established, multi-disciplinary engineering and project consultancy operating across the built environment in England. The organisation delivers technically robust mechanical design and advisory services across a varied portfolio of complex projects, primarily within regulated and public-sector environments. Known for its collaborative culture and strong commitment to professional development, the business offers a supportive, long-term career path for experienced engineers seeking senior responsibility and influence. Senior Mechanical Design Engineer - Salary & Benefits Salary £70,000 - £85,000 (dependent on experience) Car Allowance Nest Pension Scheme 22 days annual leave, with discretionary Christmas shutdown Hybrid Working Discretionary annual bonus Bupa Private Healthcare/ Dental Cover Extensive APC / chartership support where relevant to the role Cycle to Work Scheme/ EV Scheme Early finish on the last Friday of every month Senior Mechanical...

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...

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...

We are seeking an experienced Mechanical & Electrical Maintenance Engineer for a 6-month interim contract supporting multiple commercial and industrial sites across the South East. This is a hands-on role requiring a technically strong M&E engineer with proven fault-finding capability across both electrical and mechanical building services systems. The successful candidate will be comfortable operating independently, managing priorities, and delivering high-quality maintenance support in a fast-paced environment. Key Responsibilities · Deliver planned preventative maintenance (PPM) across electrical and mechanical plant · Carry out reactive maintenance and complex fault diagnosis · Fault finding on single and three-phase electrical systems. · Inspection, testing, and certification of electrical works in line with BS 7671. · Maintenance of mechanical systems including pumps, motors, valves, actuators, pipework and HVAC plant. · Diagnose issues within control panels...

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...

Maintenance Plumber, £220 pd (based on 8 hrs), start 09/03/2026 Location: Brompton, SW3 Rate: £220 pd We are seeking reliable and experienced Maintenance Mechanical operatives with strong mechanical skills to join the Facilities & Estates team at Royal Brompton Hospital This hands-on role is ideal for someone with solid plumbing/mechanical knowledge and experience working in a commercial, estates, or healthcare environment. Key Responsibilities: Carry out planned preventative maintenance (PPMs), including drainage PPMs, strainer maintenance, and basic pump maintenance Work across plant rooms and mechanical infrastructure to ensure smooth operation Diagnose and resolve plumbing/mechanical faults independently where possible Respond to reactive maintenance requests promptly and professionally Follow hospital health & safety and operational procedures at all timesRequirements: Proven experience as a maintenance plumber or mechanical engineer Basic DBS certificate...

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 &...

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 &...

A leading, established and highly successful provider of mechanical and electrical installation services to commercial and industrial buildings seek the solid appointment of a skilled M&E Project Engineer / Mechanical & Electrical Project Engineer from an M&E / Building Services M&E installation projects background to join their exciting planned growth and continued success. We are also interested in shortlisting those with a bias in either mechanical or electrical services. Those with any M&E installations experience in commercial and or industrial environments are of serious interest as a Mechanical & Electrical Project Engineer or similar. We are looking to make an immediate appointment and this is a genuinely exciting time to be a part of the final stage of this incredible project. Candidates highly sought after are those naturally from an M&E / Building Services background, ideally with direct working experience in the project delivery of mechanical...

Building Services Engineer Portsmouth / Stevenage 12 Month Contract £29.89 Per Hour PAYE/ Up To £40 Per Hour Umbrella Role Overview We are seeking an experienced and meticulous Building Services and Fabric Clerk of Works to join our dynamic team. This pivotal role involves overseeing and inspecting building services installations (Mechanical, Electrical, and Fabric) on our projects to ensure they meet the highest standards of quality, compliance, and design specifications. You will act as the department's eyes and ears on site, ensuring quality is built into every aspect of the projects under our responsibility.   Key Responsibilities Conduct rigorous inspections of HVAC, plumbing, electrical, fire systems, and structural fabric to ensure full compliance with statutory regulations and design briefs. Proactively identify and document non-conformances. Collaborate with Project Managers to ensure swift and effective resolution of all site issues. Maintain high-standard site...

On behalf of our client, we are seeking to recruit a Building Services Engineer on an initial 12 -month contract. As the Building Services you will be overseeing and inspecting building services installations (Mechanical, Electrical, and Fabric) on our projects to ensure they meet the highest standards of quality, compliance, and design specifications. Role: Building Services Engineer Pay: Up to £40 per hour Via Umbrella Location: Portsmouth or Stevenage Contract: Monday - Friday 37 hours per week, 12 months IR35 Status: Inside Security Clearance: Must be able to achieve Security Clearance, UK eyes only project Responsibilities Site Inspection & Quality Assurance: Conduct regular, thorough site inspections of all building services and building installations (HVAC, plumbing, electrical, fire systems, controls, structure etc.) to ensure compliance with drawings, specifications, statutory regulations (e.g., Building Regulations, Health & Safety), and industry best...

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....

Contractor - Senior Design Engineer (Vehicle & Suspension) Location: Shoreham Role Summary This contract role is for an experienced Senior Design Engineer specialising in vehicle suspension and subframe systems. You will be responsible for taking mechanical designs from concept through to production, working closely with a Chief Designer and contributing as a key member of the mechanical design team. Key Responsibilities Design & Engineering Lead mechanical design activities across concept, definitive, and detailed design phases. Produce detailed 3D models, basic stress calculations, FMEAs, tolerance stacks, and 2D drawings. Develop system and component specifications to meet design requirements. Create detailed manufacturing drawings, assembly drawings, and Bills of Materials. Ensure correct fit, function, and interaction of components and systems. Maintain accurate and up‑to‑date layout and design documentation. Develop component or system design plans and deliver...