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Contractor 101
Construction mechanical engineer

101 mechanical engineer jobs found

CL
Jun 27, 2026  
Mechanical Engineer
Your new company We are seeking two qualified Mechanical Engineers to join a busy team, working within commercial building services, facilities management (FM), or critical environments. This is an excellent opportunity for experienced engineers who are confident carrying out both planned and reactive maintenance while contributing to a high-performing engineering team. Initial Training Period:Monday to Friday, 08:00 - 17:00 (first 2 weeks) After Training (Rotating Shift Pattern):06:30 - 15:00 13:30 - 22:00 Your new role Carry out planned preventative maintenance (PPM) and reactive maintenance tasks Maintain and repair mechanical systems and plant equipment Ensure all work is completed in line with health & safety standards and compliance regulations Diagnose faults and carry out effective repairs Support the smooth running of building services systems Work independently and collaboratively within a team environment Contribute to continuous improvement and multi-skilled...
IR35 Status:
Unknown Status

CV-Library Manchester, Greater Manchester Contractor
CL
Jun 26, 2026  
Principal Mechanical Engineer - NW London
PSR Solutions are seeking an experienced Principal Mechanical Engineer to support a major infrastructure project in North West London. This is a long-term contract opportunity working on a complex, multidisciplinary scheme within a fast-paced project environment. Role Overview You will lead mechanical engineering activities from design through to delivery, ensuring systems are compliant, buildable, and delivered in line with programme and quality expectations. Key Responsibilities Lead and review mechanical design to ensure compliance and buildability Deliver mechanical solutions across building services and infrastructure systems Support design assurance, risk assessments, and technical reviews Contribute to safety studies (HAZID, HAZOP) Manage technical documentation and coordinate with design teams Work with site teams to resolve design and installation issues Attend testing and commissioning activities Liaise with commercial and planning teams to maintain programme...
IR35 Status:
Outside IR35

CV-Library North West London, London Contractor
CL
Jul 02, 2026  
Mechanical Fitter/ Engineer
Mechanical Fitter The Role We are looking for an experienced and qualified Mechanical Engineer/ Fitter to join our Nottingham based team, supporting wastewater treatment projects nationwide. This is a hands on, site based role where you'll work across sewage and wastewater treatment sites throughout the UK, installing, commissioning and maintaining specialist water filtration and mechanical systems. The role involves regular working away from home, including overnight stays, along with occasional work within workshops across the UK. If you enjoy practical engineering work, on site problem solving and travelling as part of a close knit engineering team, this role offers genuine variety and long term career potential. ________________________________________ What You'll Be Doing - Installing, commissioning, setting up and testing water filtration and mechanical systems on wastewater and sewage treatment sites - Carrying out site inspections, fault finding and surveys to...
IR35 Status:
Unknown Status

CV-Library Nottinghamshire, UK Contractor
CL
Jul 01, 2026  
Mechanical Project Engineer
Mechanical Project Engineer Tier 1 MEP Contractor | Data Centre Projects 📍 East London 💷 Permanent or Freelance (CIS / Ltd) I’m currently representing a market-leading Tier 1 MEP Contractor with a strong presence across the UK and Europe, delivering complex projects across the Data Centre, Commercial, Infrastructure and Life Sciences sectors. Due to continued growth and a secured pipeline of mission critical projects, they are now looking to appoint a Mechanical Project Engineer to join the delivery team on a major Data Centre development in East London. This is an excellent opportunity to work on a technically challenging, fast-paced project with a highly experienced delivery team and genuine long-term progression opportunities within one of the industry’s most sought-after sectors. The Opportunity Working alongside Senior Project Managers and site teams, you’ll play a key role in the delivery and coordination of mechanical building services packages across a large-scale...
IR35 Status:
Unknown Status

CV-Library E1, Whitechapel, Greater London Contractor
CL
Jul 03, 2026  
Mechanical Design Engineer
A well-established multi-disciplinary engineering consultancy is seeking a Mechanical Design Engineer to join its Building Services team on a 6-month fixed-term contract. With a strong reputation for delivering innovative and sustainable engineering solutions, this is an excellent opportunity to work on high-profile projects across the commercial, pharmaceutical and industrial sectors. This role is ideal for an experienced Mechanical Design Engineer who can quickly integrate into an established team and contribute to the successful delivery of projects from concept through to completion. The Role Working alongside experienced engineers and multidisciplinary teams, you will be responsible for producing high-quality mechanical building services designs while supporting projects through all stages of delivery. Key Responsibilities * Design and develop mechanical building services systems, including HVAC, ventilation, heating, cooling and domestic water services. * Produce...
IR35 Status:
Unknown Status

CV-Library Newcastle upon Tyne, Tyne & Wear Contractor
CL
Jun 24, 2026  
Senior Mechanical Design Engineer
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...
IR35 Status:
Unknown Status

CV-Library Billericay, Essex Contractor
CL
May 01, 2026  
Mechanical Design Engineer - Building Services
The Company On-going success means my client requires a Mechanical Design Engineer (Building Services). Reporting directly to the senior Chartered Engineering manager, you will be joining a team of Building Services and CAD engineers. The Role: A Mechanical Design Engineer with demonstrable knowledge of reviewing drawings, surveying existing installations and designing HVAC systems. Most of the work is Mechanical design engineering to projects providing HVAC mechanical services solutions. You will see the project through from concept to hand-over, working closely with estimating and project management departments. Duties will include: * involvement in the design of HVAC systems to enable both new and existing systems * creating new ventilation ductwork systems, CHW & LTHW systems etc, Head Load, Cooling Load calculations, onsite visits, meetings and communicating with various clients, architects and sub-contractors etc * Coordination with electrical counterparts * take...
IR35 Status:
Unknown Status

CV-Library Birmingham, West Midlands (County) Contractor
CL
Jul 02, 2026  
Piping Engineer
Piping Engineer North London | Accommodation Provided or Allowance Available Red Sky Personnel are currently representing a leading civil engineering and infrastructure contractor delivering works on a major industrial construction project in North London. Due to increased workload and ongoing project requirements, they are looking to appoint an experienced Piping Engineer to support the successful delivery of mechanical and piping installation works on site. This is an excellent opportunity to join a long-term project, working within a multidisciplinary team delivering complex piping systems, mechanical plant installation, and associated infrastructure works within a large-scale construction environment. The Role As Piping Engineer, you will play a key role in supporting the construction and installation of piping systems across the project. Working closely with site management, construction teams, and subcontractors, you will be responsible for identifying and resolving...
IR35 Status:
Unknown Status

CV-Library Edmonton, London, UK Contractor
CL
Jun 28, 2026  
Senior HVAC Design Engineer
Data Centres are crucial components of today's infrastructure, supporting everything from business to public services. 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 a Senior Mechanical Engineer your role will be as part of an interdisciplinary team lead the design of mechanical systems (Building servies and cooling) on medium to large-scale Mission Critical projects through all design stages from Concept to Construction Supervision and Hand-Over Lead the preparation and review of design deliverables Lead projects and work closely with our data centre clients to deliver quality work to meet their specific needs Present technical content for review by technical and non-technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jul 02, 2026  
Senior Electrical Design Engineer
We are seeking an experienced Electrical Design Engineer to support a young building services consultancy that’s fast establishing a strong reputation for providing clients with technically robust engineering solutions and a pragmatic approach. With a growing portfolio, covering projects across Kent and the South East, this is an excellent opportunity for a contractor with strong technical design capabilities and experience delivering electrical building services solutions from concept through to detailed design, who’s looking for more variety, influence, and responsibility on a project. Key Responsibilities * Produce electrical building services designs for a range of building types working across a broad range of sectors; commercial, retail, educational, healthcare etc. * Prepare calculations, specifications, reports, drawings and technical documentation. * Design systems including: * LV power distribution * Lighting and emergency lighting * Fire...
IR35 Status:
Unknown Status

CV-Library TN12, Paddock Wood, Kent Contractor
CL
May 16, 2026  
Senior Electrical Design Engineer
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...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Mar 22, 2026  
Building Services Engineer
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...
IR35 Status:
Unknown Status

CV-Library Hertfordshire, UK Contractor
CL
Jul 03, 2026  
Cscs Labourer
We are currently recruiting for a major logistics and distribution warehouse project in Kettering starting on Monday 15th June. This is a massive, fast-paced industrial development, and we require reliable CSCS Labourers to assist a specialist engineering team with the commissioning and testing of an advanced, large-scale conveyor system. The Role: This is not your standard sweeping-and-shifting labouring job. You will be directly integrated with the engineering team to ensure the conveyor systems are fully operational and safety-tested. Your duties will include: * Assisting mechanical engineers with the physical testing, loading, and tracking of conveyor belts. * Placing and monitoring test weights/packages on the system to check for faults, alignment, and speed. * Identifying and reporting any blockages, unusual noises, or mechanical issues during the test phase. * Ensuring the work area around the conveyor lines remains safe, clear of...
IR35 Status:
Unknown Status

CV-Library Kettering, North Northamptonshire Contractor
CL
Jun 28, 2026  
HVAC Fitter
Job title: Electrical/HVAC Fitter Job location: Crewe, Cheshire Hourly pay rate: £18.82 PAYE / £24.40 Umbrella Shifts: Mon -Thurs 8am - 4.30pm (with flexibility to work shifts) Friday Early finish 12.15pm Hours per week: 37 Duration: Ongoing Start date: ASAP Industries considered: Rolling Stock, Automotive, Marine, Aviation, Military, HGV Technicians, Aerospace, HVAC Technicians, Vehicle Technicians, Electricians, Electrical Engineers, Plumbers Company Summary: A global leader in Rolling Stock vehicle manufacturing, service and maintenance. Position Summary: Based within the Rolling Stock industry (Trains) we are currently recruiting for Electrical Engineers to operate out of a Rolling stock depot based in Crewe, to carry out the Electrical Overhaul of Rail HVAC units Candidates will be required to carry out the following duties: * HVAC overhaul, damage repair and engineering * Read schematics and technical drawings * Understanding of electrical components * Carry out...
IR35 Status:
Unknown Status

CV-Library Crewe, Cheshire Contractor
CL
Jul 03, 2026  
Site Fitter
Site Fitter UK Wide Travel | Based from Heywood, Greater Manchester Competitive Salary + Overtime + Expenses Full Time | Permanent Site Fitters Wanted - Immediate Starts Available Are you an experienced Site Fitter looking for your next challenge? We're recruiting for two Site Fitters to join a growing installation team working on projects throughout the UK. This is an excellent opportunity to join a well-established engineering manufacturer supplying specialist equipment to the healthcare, pharmaceutical and laboratory sectors. You'll be installing bespoke equipment, ductwork and extraction systems on customer sites nationwide, working on a variety of new build and refurbishment projects. The Role Installation of specialist equipment, ductwork and extraction systems Working on customer sites across the UK Installation work within laboratories, healthcare and commercial environments Using hand and power tools to assemble and install equipment Working from engineering...
IR35 Status:
Unknown Status

CV-Library Heywood, Greater Manchester Contractor
CL
Jul 03, 2026  
Project Manager - Building and Construction
Our client has an opportunity for a Building and Construction Project Leader to join them on a contract basis for 12 months with possible extension. Role: Project Leader Location: Portsmouth - fully onsite Hours: 37 per week Hourly Rate: Up to £40 per hour via Umbrella, inside IR35 Clearance: BPSS required before starting, UK Eyes Only due to project What you'll be doing: Develop, update/manage and monitor a project delivery plan. Identify and manage risks and opportunities. Manage CAPEX business cases from preparation through approval to delivery and project close. Develop detailed design briefs for Building Services design for a range of projects including major plant replacement and refurbishment works. Skilled and competent in IT tools, able to produce and present documentation, reports, technical analysis, cost reports. Experience in SharePoint / MS Project / G suite highly preferred. Application of industry standard design and software Liaising with clients, architects...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Jul 03, 2026  
Multi Skilled Maintenance Engineer
We are currently looking for a Multi Skilled Maintenance Engineer - Mechanical Bias. You will be working in Holborn Monday - Friday 8am - 5pm Temp Contract - Ongoing Pay rate - £24ph paye Job Purpose This Role is to provide both reactive and planned maintenance task as well as replacements though minor works and lifecycle. The role is to maintain the HVAC systems. To manage the sites BMS. And to over see daily operational of cooling towers. Recruitment is done in line with safe recruitment practices. 4Recruitment Services is an equal opportunities employer. To discuss this vacancy, please apply to the job with your updated CV
IR35 Status:
Unknown Status

CV-Library EC4A, Farringdon Without, Greater London Contractor
CL
Jul 02, 2026  
Senior Substation Secondary (P&C) Design Engineer
Locations: Birmingham | Epsom | Glasgow | Leeds Sector: Transmission & Distribution | Power & Energy | Net Zero Infrastructure Working Pattern: Hybrid (minimum 3 days in office/site per week) Shape the Future of Energy Infrastructure We are seeking experienced Electrical Engineers with a passion for power systems, electrical engineering, and the transition to Net Zero. This is an exciting opportunity to join a growing Power & Energy team delivering critical substation design projects across the UK and internationally. Working with major clients including National Grid, SSEN Transmission, and other leading energy organisations, you will contribute to projects spanning Front-End Engineering Design (FEED) through to Detailed Design across electricity transmission and distribution networks. This role offers excellent professional development, exposure to high-profile infrastructure projects, and ongoing support towards Chartership. The Role As a Senior Electrical...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Jul 02, 2026  
Senior Substation Primary (HV Plant) Design Engineer
Senior Substation Primary (HV Plant) Design Engineer - Contract (Inside IR35) UK - Epsom | Birmingham | Leeds | Glasgow (Hybrid / Site Travel) Up to £65/hr (Umbrella) 12-month minimum contract We are recruiting for a Senior Substation Primary (HV Plant) Design Engineer to join a leading engineering team delivering major transmission and distribution substation projects across the UK. This is a senior role working across the full project lifecycle, from FEED through to detailed design and construction support, with responsibility for delivering high-quality HV substation primary plant design solutions. Key Responsibilities Lead and deliver HV substation primary plant design for transmission and distribution projects Produce and review HV substation layouts, elevations, and general arrangements Develop earthing designs, reports, and calculations Prepare and review HV plant technical specifications and equipment data sheets Carry out HV busbar calculations and design assessments...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Jun 28, 2026  
Fabric Engineer
Building a sustainable tomorrow BAM UK & Ireland are recruiting a site based Fabric Engineer to join our FM Segment of the business and to be based in Castle Donington. Working 40 hours per week between the hours of 8.00am - 5.00pm Monday to Friday. This is a 12 Month Fixed Term Contract. Making Possible In conjunction with common roles the fabric engineer will have full responsibility for the Building fabric status of the site and carry out planned maintenance (PPM) and reactive maintenance tasks as they occur across the site. • Knowledge and experience with building fault finding • Carry out ceiling repair, painting, skirting and facing replacement, door servicing etc. • Identify spare parts to carry out repairs and order through appropriate channels. • Ability to inspect and carryout reactive landscape maintenance tasks in accordance with the project agreement including litter picking. • Carry out building fabric inspections • Inspection and fault finding building...
IR35 Status:
Unknown Status

CV-Library Castle Donington, Leicestershire Contractor
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