157 mechanical engineer jobs found in London

X1 Mechanical Engineer (Level 3 Plumbing/Mechanical) - N18 We are seeking a skilled Mechanical Engineer with Level 3 Plumbing/Mechanical experience to join the maintenance team. This is a fantastic opportunity for a reliable, hands-on engineer looking to expand their expertise across a busy and diverse site. The role is Monday to Friday, 7am-4pm, and once fully familiar with the site, you will also take part in the on-call rota. Key Responsibilities: Planned Preventative Maintenance (PPM) across a range of mechanical systems AHU maintenance and FCU servicing Calorifier inspections and routine checks TMV maintenance and compliance tasks Boiler inspections and general mechanical plant support Support with L8 compliance duties Drainage work, including unblocking toilets and waste pipes Locating and repairing leaks and minor plumbing faults Ensuring all work is completed safely and to a high standard Ideal Candidate: Level 3 qualified in a Plumbing/Mechanical discipline...

X1 Mechanical Engineer (Level 3 Plumbing/Mechanical) - N18 We are seeking a skilled Mechanical Engineer with Level 3 Plumbing/Mechanical experience to join the maintenance team. This is a fantastic opportunity for a reliable, hands-on engineer looking to expand their expertise across a busy and diverse site. The role is Monday to Friday, 7am-4pm, and once fully familiar with the site, you will also take part in the on-call rota. Key Responsibilities: Planned Preventative Maintenance (PPM) across a range of mechanical systems AHU maintenance and FCU servicing Calorifier inspections and routine checks TMV maintenance and compliance tasks Boiler inspections and general mechanical plant support Support with L8 compliance duties Drainage work, including unblocking toilets and waste pipes Locating and repairing leaks and minor plumbing faults Ensuring all work is completed safely and to a high standard Ideal Candidate: Level 3 qualified in a Plumbing/Mechanical discipline...

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 *...

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...

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...

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...

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...

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...

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...

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...

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...

We are seeking an experienced Commissioning Engineer with Mechanical experience to support a major defence project at a secure, highly regulated site near Reading. This is mid-level role, supporting the management team; site-based & requiring a high level of technical expertise, and experience in commissioning, testing, and assurance of mechanical systems and equipment within safety-critical environments. Role: Commissioning Engineer - Mechanical Bias Location: Reading (site-based) Salary: £40 Per Hour (Based on year's experience) Key Responsibilities ·Commissioning, testing, and validation of mechanical equipment on a complex defence project and on occasion provide mentorship to junior commissioning engineers and site teams. ·Follow commissioning strategies, test procedures, and method statements, alongside supporting functional testing, fault finding, and troubleshooting of complex mechanical systems. ·Ensure all commissioning activities comply with project requirements,...

We are seeking an experienced Senior Commissioning Engineer with Mechanical experience to support a major defence project at a secure, highly regulated site near Reading. This is a senior role, supporting the management team; site-based role requiring a high level of technical expertise, leadership, and experience in commissioning, testing, and assurance of mechanical systems and equipment within safety-critical environments. Role: SeniorCommissioning Engineer - Mechanical Bias Location: Reading (site-based) Salary: Up to £60 Per Hour Inside IR35 (Based on year's experience) Key Responsibilities ·Lead and oversee the commissioning, testing, and validation of mechanical equipment on a complex defence project and provide technical leadership and mentorship to junior commissioning engineers and site teams. ·Develop, review, and approve commissioning strategies, test procedures, and method statements, alongside supervising functional testing, fault finding, and troubleshooting of...

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...

Mechanical Design Engineer - Contract (12 Months) | Bedfordshire | Inside IR35 Looking to take on complex engineering challenges that genuinely push your technical capability? We're seeking experienced Mechanical Design Engineers to join a high integrity defence engineering programme focused on advanced platform integration and mission-critical systems. This is an opportunity to work on cutting-edge mechanical sub-systems, complex mechanisms, and high reliability components designed for demanding military environments. Location Bedfordshire On-site presence required Mondays and Tuesdays from September 2025 Contract Details Duration: 12 months Hours: 37.5 per week Schedule: 4-day week (Mon-Thurs) with flexible working Rate: Competitive per hour (inside IR35, inclusive of employer deductions) Clearance: BPSS to start; SC required later Eligibility: Sole UK nationals only (due to programme requirements) Role Overview As a Mechanical Design Engineer, you'll be responsible for...

Job Title: Junior Package Engineer (Oil & Gas) Location: London (Hybrid – minimum 2 days per week in office) Contract Type: Contract (Outside IR35) Start Date: Immediate Position Summary A fantastic opportunity is available for a Junior Package Engineer to support offshore oil and gas projects, including FPSO and topside developments. This role is ideal for someone early in their career who is looking to build hands-on experience across package engineering, vendor coordination, and project delivery. You will work closely with experienced engineers and project managers, gaining exposure across the full project lifecycle from design support through to procurement, inspection, and commissioning. Key Responsibilities Project and Package Support Review vendor documentation and ensure alignment with project requirements Assist with equipment expediting to support delivery schedules Provide general project and administrative support across engineering packages Prepare and...

An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on an contract basis outside IR35. This hybrid role will involve working as part of a multidisciplinary building services engineering team, supporting the delivery of electrical design solutions across a range of building projects. The successful Electrical Design Engineer will contribute to the development of electrical building services designs, technical documentation and coordinated BIM models. This role is based in the London office with hybrid working available, offering the chance to work on high-quality building services projects alongside experienced engineers and consultants. Key Responsibilities · As an Electrical Design Engineer, your responsibilities will include: · Producing electrical building services designs for a variety of building projects · Developing electrical schematics, layouts and...

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 &...