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Outside IR35 Contractor mechanical project engineer

63 mechanical project engineer jobs found

CL
Aug 21, 2026  
Senior Mechanical / Project Engineer
Senior Mechanical Project Engineer – Contract – West Wales / Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the hydrocarbon and clean energy sectors. The role requires a Mechanical and Piping discipline background but also strong Project Engineering skills. Needs a person who is comfortable with both the design and co-ordination aspects of energy projects. Our client is based in West Wales and can accommodate a hybrid working pattern. This role is deemed to be outside IR35. Role & Responsibilities * Interact with Mechanical Package vendors, ensuring compliance with agreed design standards and requirements. * Responsible for bid evaluation and negotiation of vendors for Mechanical and Piping packages. * Also accountable for design specification management throughout the project design phase. * Participate in relevant meetings such as Design Reviews, Model Reviews and HAZIDs. *...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Aug 21, 2026  
Quality & Snagging Inspector
Quality & Snagging Inspector (M&E) – Contract Location: Heathrow Rate: £350-£400 Contract: LTC IR35: Outside M&E Quality Inspector | QA/QC Engineer | Building Services | Contract | Data Centres | Commercial Construction We are currently recruiting for an experienced Quality & Snagging Inspector (M&E) to join a leading M&E contractor on a major construction project. This is an excellent opportunity for an experienced QA/QC Engineer, M&E Quality Inspector, or Building Services Inspector to play a key role in ensuring the highest standards of mechanical and electrical installations are achieved before project handover. The Role Reporting to the Project Manager, you will be responsible for inspecting completed Mechanical & Electrical installations, identifying defects, producing snagging reports, and ensuring all works are completed to specification and in accordance with project quality standards. You'll work closely with subcontractors,...
IR35 Status:
Outside IR35

CV-Library Hillingdon, Greater London Contractor
CL
Aug 21, 2026  
Project Design Manager
New contract opportunities are available for Project Design Managers to join a progressive Water Treatment consultancy firm. This is an exciting time to join the business; they have tripled their workforce in the past 12 months and are working with some of the leading water companies and Tier 1 Contractors in the sector. The opportunities offer remote work so can be flexible in location so long as applicants are situated in the UK and must have proof of right to work in the UK. With outside IR35 long-term contracts available. Key Responsibilities of the Project Manager: Lead the design and delivery of wastewater treatment projects from concept to detailed design and construction support. Act as the technical authority for mechanical engineering while providing coordination oversight for civil, electrical, and ICA disciplines. Ensure the design aligns with client specifications, statutory requirements, and industry best practices. Manage and integrate the work of mechanical,...
IR35 Status:
Outside IR35

CV-Library Romford, London Contractor
CL
Aug 21, 2026  
Project Design Manager
New contract opportunities are available for Project Design Managers to join a progressive Water Treatment consultancy firm. This is an exciting time to join the business; they have tripled their workforce in the past 12 months and are working with some of the leading water companies and Tier 1 Contractors in the sector. The opportunities offer remote work so can be flexible in location so long as applicants are situated in the UK and must have proof of right to work in the UK. With outside IR35 long-term contracts available. Key Responsibilities of the Project Manager: Lead the design and delivery of wastewater treatment projects from concept to detailed design and construction support. Act as the technical authority for mechanical engineering while providing coordination oversight for civil, electrical, and ICA disciplines. Ensure the design aligns with client specifications, statutory requirements, and industry best practices. Manage and integrate the work of mechanical,...
IR35 Status:
Outside IR35

CV-Library Durham, County Durham Contractor
CL
Aug 21, 2026  
Project Design Manager
New contract opportunities are available for Project Design Managers to join a progressive Water Treatment consultancy firm. This is an exciting time to join the business; they have tripled their workforce in the past 12 months and are working with some of the leading water companies and Tier 1 Contractors in the sector. The opportunities offer remote work so can be flexible in location so long as applicants are situated in the UK and must have proof of right to work in the UK. With outside IR35 long-term contracts available. Key Responsibilities of the Project Manager: Lead the design and delivery of wastewater treatment projects from concept to detailed design and construction support. Act as the technical authority for mechanical engineering while providing coordination oversight for civil, electrical, and ICA disciplines. Ensure the design aligns with client specifications, statutory requirements, and industry best practices. Manage and integrate the work of mechanical,...
IR35 Status:
Outside IR35

CV-Library Salford, Greater Manchester Contractor
CL
Aug 20, 2026  
Site Construction Manager
Site Construction Manager - Power Generation Project Teesside (Site Based) 18-24 Month Contract | Outside IR35 Day Rate: Attractive DOE For more details contact: Adam Mayne - (url removed) | (phone number removed) Site Construction Manager - Power Generation   Are you an experienced Construction Manager with a background delivering mechanical and electrical installation projects within industrial, energy, process, utilities, power generation or heavy engineering environments? This is an opportunity to play a key role on a major £36m power generation project being delivered for a globally recognised industrial energy operator on Teesside.   Working for one of the UK's leading specialists in distributed energy, power generation and battery energy storage solutions, you'll take responsibility for coordinating and overseeing construction activities on a significant gas engine power generation installation.   Working closely with the Project Manager and Project Engineer,...
IR35 Status:
Outside IR35

CV-Library Middlesbrough, UK Contractor
CL
Aug 19, 2026  
Senior Mechanical Design Engineer - Aerospace - Outside IR35
Senior Mechanical Design Engineer - Aerospace - Outside IR35 Contract, Hybrid (Gloucestershire) £depending on experience / expectations Aerospace, Mechanical Design, Siemsn, NX, Solidworks, Team Centre PLM Leading aerospace company are seeking Senior Mechanical Engineer to support expanding project aligned to aerospace, high power electricals and adjoining electronics casings, fluid systems networks and piping & engine systems. Experience: Circa 7 - 20+ years in Mechanical Design, with extensive / highly relevant aerospace industry exposure. Tasks * Own CAD design and associated data for assigned components and assemblies * 3D CAD models and high-quality 2D production drawings * PLM Management * Apply knowledge of GD&T, materials, finishes, manufacturing processes, as well as and stress analysis * Lead and participate in design reviews Key Skills * Expert user of 3D CAD (Siemens NX strongly preferred) and experience with Teamcenter PLM or similar...
IR35 Status:
Outside IR35

CV-Library Gloucester, Gloucestershire Contractor
CL
Aug 19, 2026  
Mechanical Site Engineer
Role: Mechanical Site Engineer – Utility Scale Solar Location: Epping (Essex) Start: ASAP Mint Selection are partnered with a leading EPC contractor delivering utility-scale solar projects across the UK and are looking to recruit an experienced Mechanical Site Engineer to support the successful delivery of a major ground-mounted solar PV project. We are looking to speak with Mechanical Site Engineers who have a proven track record of delivering large-scale solar projects, with experience managing mechanical subcontractors, driving quality standards and supporting construction through to mechanical completion and handover. Scope of Work * Support the safe and successful delivery of a large utility-scale solar PV project, ensuring works are completed in line with programme, quality and HSEQ requirements. * Manage and coordinate mechanical subcontractors throughout the construction phase. * Supervise the installation of piling, mounting structures, trackers (where...
IR35 Status:
Outside IR35

CV-Library Epping, Essex Contractor
CL
Aug 19, 2026  
Mechanical Site Engineer
Role: Mechanical Site Engineer – Utility Scale Solar Location: Northamptonshire / Bedfordshire Mint Selection are partnered with a leading EPC contractor delivering utility-scale solar projects across the UK and are looking to recruit an experienced Mechanical Site Engineer to support the successful delivery of a major ground-mounted solar PV project. We are looking to speak with Mechanical Site Engineers who have a proven track record of delivering large-scale solar projects, with experience managing mechanical subcontractors, driving quality standards and supporting construction through to mechanical completion and handover. Scope of Work * Support the safe and successful delivery of a large utility-scale solar PV project, ensuring works are completed in line with programme, quality and HSEQ requirements. * Manage and coordinate mechanical subcontractors throughout the construction phase. * Supervise the installation of piling, mounting structures, trackers (where...
IR35 Status:
Outside IR35

CV-Library Bedford, Bedfordshire Contractor
CL
Aug 15, 2026  
Commissioning & Systems Completion Lead
Commissioning & Systems Completion Lead Position Type: Contract Location: Northumberland Categories: Engineering, CQV PM Group requires a Commissioning Lead will be responsible for monitoring the Principal Contractors (PC) commissioning process and execution of the scope being HVAC, mechanical, electrical, data, BMS, Business Technology (BT) and utility/sprinkler systems. The role ensures systems are commissioned safely, efficiently, timely and in compliance with Project URS, GMP, GxP, FDA, EU GMP, and project-specific requirements. The Commissioning Lead acts as the primary interface with the PC between construction, engineering, CQV, Business Technology (BT) and quality assurance personnel. The commissioning lead will also liaise with client operations/BT, and equipment vendors to assist in the delivery of operational and validated systems from installation through start-up and handover. Note that this role will be full time site based to monitor the progress....
IR35 Status:
Outside IR35

CV-Library North East, 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
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 23, 2026  
Lead Electrical Engineer
Lead Electrical Engineer - Nuclear Manchester | Hybrid (2-3 Days Office) c£60.00 per Hour | Outside IR35 Long-Term Contract | Immediate Start We're recruiting for an experienced Lead Electrical Engineer to join a major UK nuclear project, leading the electrical design scope from concept through detailed design. This is a purely electrical engineering role requiring recent detailed design experience within a highly regulated industry. Key Responsibilities Lead the electrical engineering scope and design delivery. Produce and review electrical design documentation. Complete electrical calculations, specifications and SLDs. Specify HV/LV equipment and review supplier documentation. Support project planning, reporting and change control. Lead technical meetings and coordinate the electrical team. Ensure compliance with UK standards and project requirements. Essential Degree or equivalent in Electrical Engineering. Extensive experience in detailed electrical design. Previous...
IR35 Status:
Outside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Aug 23, 2026  
Senior Civil Structural Engineer
Senior Civil & Structural Engineer - Water Manchester | Hybrid Working £50.00 per Hour | Outside IR35 Long-Term Contract | Immediate Start We're recruiting for an experienced Senior Civil & Structural Engineer to support the delivery of major UK water infrastructure projects. Working as part of a multidisciplinary team, you'll produce high-quality civil and structural designs while providing technical guidance and supporting project delivery from design through to construction. Key Responsibilities Produce civil and structural designs, calculations and technical reports. Develop structural analysis models and engineering sketches. Provide technical guidance to project teams. Liaise with construction and project stakeholders. Deliver work to programme and budget. Identify value engineering opportunities. Mentor and support junior engineers. Essential Degree qualified in Civil or Structural Engineering. Chartered or Incorporated Engineer (or working towards). Strong...
IR35 Status:
Outside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Aug 23, 2026  
BMC Helix Engineer (SC Cleared)
BMC Helix Engineer (SC Cleared) Andover (Hybrid) 6 Month Contract £500/day (Outside IR35) BMC Helix Engineer needed with active SC Security Clearance and Helix migration + implementation project experience. 6 Month Contract based in Andover (Hybrid). Start ASAP ideally August 2026. Hybrid Working - 3 days/week remote (WFH) + 2 days/week working on-site. Paying up to £500/day (Outside IR35). A chance to work with a leading global IT transformation business on a large-scale Government project: Leading the migration from BMC Remedy to BMC Helix SaaS ITSM environment. Design, build + migration for an end-to-end BMC Helix ITSM solution covering Incident, Problem, Change, Release, Asset + Service Catalogue management. Strong hands-on BMC Helix ITSM experience on large-scale enterprise environments. In-depth expertise in BMC Helix ITSM modules including: Incident, Problem, Change, CMDB, Asset, Service Request + Knowledge. Design + build integrations with 3rd-party...
IR35 Status:
Outside IR35

CV-Library Andover SP11, UK Contractor
CL
Aug 23, 2026  
BIM Automation Specialist
BIM Automation Specialist Remote (UK) Up to £50 per hour 6-12 Month Contract | Outside IR35 An exciting opportunity has arisen for an experienced BIM Automation Specialist to join an established digital delivery team, helping transform BIM workflows through automation and intelligent digital solutions. This BIM Automation Specialist role is ideal for someone who is an expert in Dynamo and enjoys developing automation tools that improve efficiency, reduce manual processes and enhance BIM data quality. Working remotely, you'll collaborate with BIM professionals to automate repetitive Revit workflows, improve Common Data Environment (CDE) processes and develop innovative digital solutions across live projects. The successful BIM Automation Specialist will play a key role in advancing digital delivery by creating scalable automation tools, improving BIM standards and supporting the wider adoption of efficient workflows. The Role As a BIM Automation Specialist, you'll be...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 22, 2026  
Systems Engineer
A company that specialise in electro-mechanical systems for the Automotive / EV industry is seeking to recruit a Systems Engineer to work on a contract based in Surrey that is initially scheduled for 6 months, Outside IR35. The Role This is an exciting opportunity to support the development and specification of next-generation products within a complex engineering environment. The successful candidate will work alongside senior engineering team members to apply structured systems engineering principles, supporting the delivery of safe, secure, and innovative solutions in line with industry standards, including ISO 26262 Functional Safety and ISO 21434 Cybersecurity. The role requires a strong understanding of systems engineering methodologies, with experience in defining, analysing, and refining end-to-end system architectures. You will contribute to the development of clear system requirements, support architectural design decisions, and provide technical justification...
IR35 Status:
Outside IR35

CV-Library Surrey, UK Contractor
CL
Aug 22, 2026  
SC Cleated Field Solutions Engineer
Job Title: SC Cleared Field Solutions Engineer Location: Hybrid/London/Bristol as and when required Duration: 6 months with possible extension Rate: Up to £650 per day Outside IR35 Must be willing and eligible to go through the SC Clearance process If you enjoy combining hands-on technical work with client engagement, this is a brilliant opportunity to support secure infrastructure solutions end-to-end. Our Client is looking for a technical liaison who can translate requirements into clear architectures, run engaging demos and proof-of-concepts, and build trusted relationships across technical and non-technical stakeholder groups. What you'll be doing: Act as the technical bridge between clients and the business, supporting secure infrastructure solutions Deliver product demos and build lab environments to prove solution fit Lead proof-of-concepts (POCs), from scoping through technical guidance and outcomes Provide technical input and security benefits when discussing...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 22, 2026  
PMS Design Engineer
Power Management System (PMS) Design Engineer Contract | Outside IR35 | Fully Remote | Immediate Start A leading engineering consultancy is seeking an experienced Power Management System (PMS) Design Engineer to support the delivery of a major European data centre project. This is an excellent opportunity for a contractor with a strong background in power systems design to play a key role in developing a vendor-neutral Power Management System solution from concept through to detailed design documentation. The Role You will be responsible for the development and documentation of the overall Power Management System (PMS) design, ensuring it integrates effectively with the wider electrical infrastructure and associated control systems. Key responsibilities include: Developing the overall PMS Control Philosophy Producing Functional Design Specifications (FDS) Preparing Performance and Procurement Specifications Developing PMS system architecture and interface diagrams...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Aug 22, 2026  
Lead Engineer/Infrastructure Supervisor (Structured Cabling)
Lead Engineer/Infrastructure Supervisor (Structured Cabling) (225jc) – Guildford - £230 per day Looking for your next contract? We have a 6 – 8 Month contract starting in October 2026 DUE TO THE NATURE OF THIS RECRUITMENT CONSULTANCY, WE ARE ONLY ABLE TO REPRESENT INDIVIDUALS WHO ARE EX MILITARY. We're recruiting on behalf of a specialist engineering organisation seeking an experienced Lead Engineer / Infrastructure Supervisor to oversee the delivery of a major structured cabling and network infrastructure project in the Guildford area. This is an excellent opportunity for an experienced military communications and infrastructure specialist looking for a hands-on supervisory contract within a professional engineering environment. If you've led installation teams, managed technical projects on operational sites, or supervised communications infrastructure, we'd like to hear from you. The Role You'll take responsibility for leading a team of engineers delivering structured...
IR35 Status:
Outside IR35

CV-Library Guildford, Surrey Contractor
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