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Contractor 12
Construction Outside IR35 mechanical engineer

12 mechanical engineer jobs found

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
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
Aug 17, 2026  
Contract Bus/Truck Engineer
Contract PSV Engineer “Are you looking for ongoing opportunities as a Contract PSV Engineer?” Why work as a Venatu Contractor? Wages paid weekly. Roles inside and outside of IR35. Local work wherever possible, as well as national opportunities, short and long-term contracts available. Developing your skill set, training courses subject to meeting the criteria. Technical backup from a qualified engineer. What you will be doing as the PSV Engineer: Carry out repair and maintenance to exceed DVSA standards. Diagnostics and repair of mechanical faults including steering, brakes, air systems, driveline but not limited to. Diagnostics and repair of electrical, and body systems. Use diagnostic equipment to assist diagnostics. Routine inspection and servicing to maintain roadworthiness and MOT standards. Carry out major unit changes and repairs where applicable. Complete necessary paperwork including service sheets to a good standard. Meet and work to site health and safety...
IR35 Status:
Outside IR35

CV-Library Lancashire, UK Contractor
CL
Aug 16, 2026  
Contract Bus Engineer
Contract PSV Engineer “Are you looking for ongoing opportunities as a Contract PSV Engineer?” Why work as a Venatu Contractor? Wages paid weekly. Roles inside and outside of IR35. Local work wherever possible, as well as national opportunities, short and long-term contracts available. Developing your skill set, training courses subject to meeting the criteria. Technical backup from a qualified engineer. What you will be doing as the PSV Engineer: Carry out repair and maintenance to exceed DVSA standards. Diagnostics and repair of mechanical faults including steering, brakes, air systems, driveline but not limited to. Diagnostics and repair of electrical, and body systems. Use diagnostic equipment to assist diagnostics. Routine inspection and servicing to maintain roadworthiness and MOT standards. Carry out major unit changes and repairs where applicable. Complete necessary paperwork including service sheets to a good standard. Meet and work to site health and safety...
IR35 Status:
Outside IR35

CV-Library Berkshire, UK Contractor
CL
Aug 16, 2026  
Contract Bus Engineer
Contract PSV Engineer “Are you looking for ongoing opportunities as a Contract PSV Engineer?” Why work as a Venatu Contractor? Wages paid weekly. Roles inside and outside of IR35. Local work wherever possible, as well as national opportunities, short and long-term contracts available. Developing your skill set, training courses subject to meeting the criteria. Technical backup from a qualified engineer. What you will be doing as the PSV Engineer: Carry out repair and maintenance to exceed DVSA standards. Diagnostics and repair of mechanical faults including steering, brakes, air systems, driveline but not limited to. Diagnostics and repair of electrical, and body systems. Use diagnostic equipment to assist diagnostics. Routine inspection and servicing to maintain roadworthiness and MOT standards. Carry out major unit changes and repairs where applicable. Complete necessary paperwork including service sheets to a good standard. Meet and work to site health and safety...
IR35 Status:
Outside IR35

CV-Library Devon, UK Contractor
CL
Aug 15, 2026  
Estimator - HVAC, Heat Pumps, M&E
Estimator - Commercial HVAC, M&E & Heat Pumps Leeds | Contract (Outside IR35) OR Permanent - Hybrid Our client, a well-established Building Services contractor, is seeking an experienced Estimator to support the delivery of commercial and industrial HVAC, Heat Pumps, M&E, and low-carbon heating projects. Key Responsibilities Prepare accurate cost estimates and tender submissions Review drawings, specifications, and tender documents Price labour, materials, plant, and subcontractor packages Obtain and assess supplier and subcontractor quotations Identify value engineering opportunities and commercial risks Liaise with clients, consultants, suppliers, and project teams Support project handovers and pre-construction activities Requirements Proven estimating experience within Commercial HVAC and M&E projects Knowledge of Air Source Heat Pumps and low-carbon heating systems Ability to interpret mechanical and electrical drawings Strong commercial awareness and...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Aug 15, 2026  
Site Engineer
Our client is currently seeking a Site Engineer to join their team on a contract basis. This role is focused on a major water treatment works project, offering an exciting opportunity for professionals with experience in the water industry. The position is potentially outside IR35, subject to assessment. Key Responsibilities: Overseeing the day-to-day activities of the clean water treatment works project Ensuring that all work complies with water industry standards and regulations Conducting site inspections and ensuring project timelines are met Coordinating with various teams and subcontractors Providing technical support and expertise to project teams Maintaining accurate site records and documentation Ensuring health and safety protocols are strictly followed on site Job Requirements: Experience in civil engineering, specifically within the water industry Proficient in site management and supervision Strong understanding of water treatment processes and standards Excellent...
IR35 Status:
Outside IR35

CV-Library Slough, Berkshire Contractor
CL
Aug 13, 2026  
QA/QC Engineer
QA/QC Engineer Location: Birmingham Contract: 3 Months Rate: £140 - £160 per day Status: Outside IR35 We are currently recruiting for an experienced QA/QC Engineer to join a busy engineering and construction project in Birmingham on an initial 3-month contract. This is an excellent opportunity for a quality professional with a strong background in construction, civil engineering or complex engineering projects to play a key role in ensuring quality standards are maintained throughout project delivery. The Role You'll be responsible for managing all QA/QC activities across the project, ensuring compliance with project specifications, industry standards and quality management systems. Working closely with engineering teams, contractors and suppliers, you'll drive quality assurance from material inspection through to final documentation. Key Responsibilities * Manage all QA/QC activities throughout the project lifecycle. * Prepare and maintain QA/QC documentation,...
IR35 Status:
Outside IR35

CV-Library Birmingham, West Midlands (County) Contractor
CL
Aug 13, 2026  
Site Agent
Site Agent Civil Engineering & Infrastructure Outside IR35 Contract We are currently recruiting for an experienced Site Agent to support the delivery of major civil engineering and infrastructure projects. This role will see you taking responsibility for the safe, efficient, and high-quality delivery of works across a range of schemes, including earthworks, reinforced concrete structures, pipelines, drainage, utilities, and associated infrastructure. Working closely with project teams, subcontractors, and stakeholders, you will oversee day-to-day site operations, programme delivery, health and safety, quality assurance, and resource management. You will play a key role in coordinating multidisciplinary teams, managing construction activities, driving programme performance, and ensuring works are delivered in accordance with contractual, technical, and regulatory requirements. Previous experience working under NEC contracts and managing complex construction activities within...
IR35 Status:
Outside IR35

CV-Library Harlow, UK Contractor
CL
Aug 12, 2026  
Estimator
Tendering Engineer / Estimator - HV Power & BESS Projects - Outside IR35 Contract 📍 Remote Working 💰 Outside IR35 📅 Initial 3 Months (Likely Extension) ⚡ BESS | Substations | Grid Connections | Solar | 33kV–132kV An established power infrastructure contractor is looking to engage an experienced Tendering Engineer / Estimator to support a growing pipeline of major energy projects. With a number of significant tenders requiring submission over the coming months, the business is seeking additional resource to support the delivery of bids across Battery Energy Storage Systems (BESS), substations, grid connections and renewable energy infrastructure projects. This is a fully remote contract opportunity with flexibility to work 3, 4 or 5 days per week. The Role You will support the preparation and submission of tenders for major power infrastructure projects, working closely with engineering, commercial and delivery teams. Responsibilities will include: * Reviewing and...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Jul 31, 2026  
Quality & Document Controller
Quality & Document Controller – Contract – South Wales Day rate outside IR35 We are seeking an experienced Quality & Document Controller for a 12-month contract role on a major heavy industrial construction project in South Wales. The Quality & Document Controller will manage project documentation, technical records, drawing control, CDE workflows and site quality records. This role requires someone detail-focused, organised and confident working with engineers, site teams, subcontractors and document control teams. As Quality & Document Controller, you will be responsible for maintaining drawing registers, revision control, RFIs, technical submissions, inspection records, quality documentation and handover packs. You will also support audits, track missing records and ensure site teams are working from the latest approved information. Essential skills and experience: Minimum 3–5 years’ experience in document control, quality administration or technical...
IR35 Status:
Outside IR35

CV-Library Swansea, City and County of Swansea Contractor
CL
May 12, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Contract We have a fantastic contract opportunity for an experienced Tridium BMS Commissioning Engineer to join an exciting and prestigious project in London. On offer is an initial 6 month contract (with the potential to extend), c£40 - £48 per hour, and the opportunity to work on one of London’s most interesting new projects in central London The BMS Commissioning Engineer position:- As a BMS Commissioning Engineer, you will have fantastic experience and knowledge of commissioning Building Management Systems, in particular Tridium Niagara.  You will be required to perform software modifications and full commissioning. The project is in central London and is a very prestigious refurbishment of a historical building. The project is a mixed use development incorporating a hotel, high end luxury residences, and shops and will be using state of the art new smart building technology. Key skills of the BMS Commissioning Engineer:- Exceptional technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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