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Contractor 18
Engineering Outside IR35 relief support worker

18 relief support worker jobs found

CL
Mar 15, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Derbyshire Rate: £40 - £42 per hour (Ltd – Outside IR35) Contract: 3 – 6 month initial contract – likely to extend Immediate Start Our client is looking for an experienced professional to take a lead role in managing the full design process—from initial concept through to final delivery. This is a unique opportunity to contribute to high-impact projects within a fast-paced, collaborative engineering environment. You'll use tools like CAD and advanced engineering software to validate calculations, support testing, and oversee project execution, working closely with cross-functional teams to ensure quality, efficiency, and client satisfaction at every stage. What Our Client is Looking For: A hands-on background in fabrication and structural engineering Proficiency in engineering calculations – using Mathcad, Excel, and hand calculations Expertise in acoustics, airflow, and thermal systems Experience with both large and small companies,...
IR35 Status:
Outside IR35

CV-Library Derbyshire, UK Contractor
CL
Mar 15, 2026  
Senior Civil Engineer
We are seeking an experienced Senior Civil Design Engineer to support a portfolio of National Grid infrastructure projects. The role involves leading the civil and structural design elements for substation, overhead line, and other transmission‑related assets, ensuring compliance with National Grid's technical specifications and governance processes. This is an Outside IR35 contract position, offering hybrid working with on‑site collaboration. Key Responsibilities Lead and produce civil and structural designs for National Grid transmission projects (substations, foundations, compounds, cable routes, OHL works, access roads, drainage, etc.). Ensure all designs comply with National Grid TP / TS standards and relevant industry codes (BS EN, Eurocodes). Prepare design calculations, sketches, reports, specifications, and technical documentation. Manage design risk assessments and contribute to CDM compliance. Coordinate with multidisciplinary teams including electrical, geotechnical,...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Mar 15, 2026  
Senior Civil Design Engineer
Job Title: Civil Engineer - Water Rate: £35 to £45 per hour (Outside IR35) Location: Slough Type: Contract | Outside IR35 | Hybrid working About the Role: Our client is seeking an experienced Civil Engineer with strong UK water sector experience to support the delivery of complex infrastructure and non-infrastructure projects. This is a contract opportunity operating outside IR35, offering long-term project stability and hybrid working. You will provide hands-on technical expertise across the full project lifecycle, supporting design, coordination, and delivery on critical water industry schemes. About Our Client: Our client is a well-established UK engineering consultancy with a strong presence in the water sector. They are recognised for delivering technically robust, sustainable solutions and for working collaboratively with contractors, clients, and stakeholders across major programmes. Key Responsibilities: Project Delivery Support and deliver water sector projects...
IR35 Status:
Outside IR35

CV-Library Slough, Berkshire Contractor
CL
Mar 14, 2026  
Mechanical Design Engineer
Mechanical Design Engineer - Greater Manchester Our client has an open requirement for a Mechanical Design Engineer on a 6 month contract basis with the possibility for further extension. This will operate on an outside IR35 basis so limited company contractors will be able to operate, and a rate between £35 and £43 per hour is expected, subject to level of experience and suitability. Candidates will be required to work in the office full time initially and then switch to a hybrid model of 3 days office based and 2 from home after a few weeks’ orientation. The client is looking for a good engineering background first and foremost with strong experience and knowledge of typical mechanical equipment and terminology including: Limits and fittings, bearings, linear guides, GD&T’s, rotating equipment, and automated equipment such as motors, gearboxes, and drives. They should also have a basic knowledge of working with steel structures. The client is using Creo design software -...
IR35 Status:
Outside IR35

CV-Library Eccles, City and Borough of Salford Contractor
CL
Mar 13, 2026  
Lead Engineer
Lead Engineer Coventry, UK (Onsite) Salary + Benefits £45,000 - £55,000 per annum (Fixed-Term Contract) or £350 - £375 per day (Ltd Company Contractor - Outside IR35) Shift Pattern / Working Hours Monday - Thursday: 08:00 - 16:35 Friday: 08:00 - 15:10 Must hold active UK Security Clearance   An established engineering organisation operating within the defence vehicle sector is seeking an experienced Lead Engineer to support a period of sustained programme growth.   This role focuses on delivering next-generation vehicle systems for global defence programmes and future mobility developments.   You will take technical ownership of complex electro-mechanical systems, ensuring solutions meet demanding customer, regulatory, and operational requirements.   Working within a collaborative, engineering-led environment, you will contribute directly to programmes that deliver advanced protection and mobility capabilities.   Both fixed-term and day-rate engagement options...
IR35 Status:
Outside IR35

CV-Library Coventry, UK Contractor
CL
Mar 13, 2026  
Project Manager (Contract)
Project Manager (Contract) Coventry, UK Salary £45,000 - £55,000 per annum (Fixed-Term Contract) or £300 - £350 per day (Ltd Company Contractor - Outside IR35) Shift Pattern / Working Hours Monday - Thursday: 08:00 - 16:35 Friday: 08:00 - 15:10 Must hold active UK Security Clearance   An established engineering organisation operating within the defence and protected mobility sector is seeking an experienced Project Manager for an immediate start. This role sits within a technically focused business unit responsible for delivering vehicle systems, services, and support solutions that maintain operational capability.   You will lead multiple engineering projects within a fast-paced, engineering-led environment where technical understanding and structured delivery are essential.   The position offers the opportunity to contribute to critical national capability programmes while working closely with engineering, production, and key external stakeholders.   This...
IR35 Status:
Outside IR35

CV-Library Coventry, UK Contractor
CL
Mar 12, 2026  
Geotechnical Engineer
Site-Based Geotechnical Engineer (Earthworks Focus) Outside IR35 Role Overview The Site-Based Geotechnical Engineer will provide on-site technical oversight and support for earthworks operations, ensuring that construction activities comply with design specifications, geotechnical recommendations, and relevant standards. The role requires close coordination with construction teams, subcontractors, and designers to manage ground-related risks and ensure quality, safety, and programme delivery. Key Responsibilities Technical & Site Oversight Provide geotechnical supervision of earthworks activities including excavation, fill placement, compaction, and ground improvement. Interpret geotechnical reports, drawings, and specifications for site implementation. Monitor ground conditions and identify deviations from expected conditions. Advise site teams on excavation stability, slope design, temporary works, and dewatering requirements. Review and verify compliance with...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Mar 12, 2026  
Geotechnical Engineer
Site-Based Geotechnical Engineer (Earthworks Focus) Outside IR35 Role Overview The Site-Based Geotechnical Engineer will provide on-site technical oversight and support for earthworks operations, ensuring that construction activities comply with design specifications, geotechnical recommendations, and relevant standards. The role requires close coordination with construction teams, subcontractors, and designers to manage ground-related risks and ensure quality, safety, and programme delivery. Key Responsibilities Technical & Site Oversight Provide geotechnical supervision of earthworks activities including excavation, fill placement, compaction, and ground improvement. Interpret geotechnical reports, drawings, and specifications for site implementation. Monitor ground conditions and identify deviations from expected conditions. Advise site teams on excavation stability, slope design, temporary works, and dewatering requirements. Review and verify compliance with...
IR35 Status:
Outside IR35

CV-Library Coventry, West Midlands Contractor
CL
Mar 12, 2026  
Geotechnical Engineer
Site-Based Geotechnical Engineer (Earthworks Focus) Outside IR35 Role Overview The Site-Based Geotechnical Engineer will provide on-site technical oversight and support for earthworks operations, ensuring that construction activities comply with design specifications, geotechnical recommendations, and relevant standards. The role requires close coordination with construction teams, subcontractors, and designers to manage ground-related risks and ensure quality, safety, and programme delivery. Key Responsibilities Technical & Site Oversight Provide geotechnical supervision of earthworks activities including excavation, fill placement, compaction, and ground improvement. Interpret geotechnical reports, drawings, and specifications for site implementation. Monitor ground conditions and identify deviations from expected conditions. Advise site teams on excavation stability, slope design, temporary works, and dewatering requirements. Review and verify compliance with...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Mar 12, 2026  
Geotechnical Engineer
Site-Based Geotechnical Engineer (Earthworks Focus) Outside IR35 Role Overview The Site-Based Geotechnical Engineer will provide on-site technical oversight and support for earthworks operations, ensuring that construction activities comply with design specifications, geotechnical recommendations, and relevant standards. The role requires close coordination with construction teams, subcontractors, and designers to manage ground-related risks and ensure quality, safety, and programme delivery. Key Responsibilities Technical & Site Oversight Provide geotechnical supervision of earthworks activities including excavation, fill placement, compaction, and ground improvement. Interpret geotechnical reports, drawings, and specifications for site implementation. Monitor ground conditions and identify deviations from expected conditions. Advise site teams on excavation stability, slope design, temporary works, and dewatering requirements. Review and verify compliance with...
IR35 Status:
Outside IR35

CV-Library Coventry, West Midlands Contractor
CL
Mar 12, 2026  
Geotechnical Engineer
Site-Based Geotechnical Engineer (Earthworks Focus) Outside IR35 Role Overview The Site-Based Geotechnical Engineer will provide on-site technical oversight and support for earthworks operations, ensuring that construction activities comply with design specifications, geotechnical recommendations, and relevant standards. The role requires close coordination with construction teams, subcontractors, and designers to manage ground-related risks and ensure quality, safety, and programme delivery. Key Responsibilities Technical & Site Oversight Provide geotechnical supervision of earthworks activities including excavation, fill placement, compaction, and ground improvement. Interpret geotechnical reports, drawings, and specifications for site implementation. Monitor ground conditions and identify deviations from expected conditions. Advise site teams on excavation stability, slope design, temporary works, and dewatering requirements. Review and verify compliance with...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Mar 11, 2026  
Lead Electrical Commissioning Engineer
Astute's Power Team are partnering with a Leading EPCM Contractor within the Energy Sector. We are currently recruiting for a Lead Electrical Commissioning Engineer to join their Waste to Energy project based near Glasgow. The Lead Electrical Commissioning Engineer position comes with a day rate from £550.00 to £650.00 per day outside of IR35. Role responsibilities and key skills for the role: Lead and coordinate all electrical commissioning activities across the project, ensuring safe, efficient, and compliant execution. Develop and implement commissioning plans, procedures, and schedules in alignment with the overall project commissioning strategy. Supervise and oversee electrical pre-commissioning and commissioning works, including LV/MV/HV systems, MCCs, switchgear, transformers, UPS, and control systems. Manage and coordinate interfaces between electrical systems and other process areas, including boiler, steam turbine, flue gas treatment (FGT), crane systems, and DNO...
IR35 Status:
Outside IR35

CV-Library Glasgow, UK Contractor
CL
Mar 11, 2026  
Lead EC&I Engineer
Do you have proven experience delivering EC&I engineering within the gas, utilities, or wider energy sector, including Hazardous Area work? Can you demonstrate hands-on capability in producing electrical schematics, control logic diagrams, and instrument loop diagrams for live projects? Are you able to manage EC&I deliverables independently while collaborating closely with project and framework managers to meet critical deadlines? The Opportunity We are seeking an experienced Electrical Control & Instrumentation (EC&I) Engineer to join our commercial team on a long-term contract. You will support a portfolio of projects, ensuring the reliable and efficient operation of processes through the design, implementation, and maintenance of control systems and instrumentation. This role is central to delivering high-quality technical solutions and maintaining strong client relationships. 40 hours per week working remote with occasional office visits.  Rate: Circa...
IR35 Status:
Outside IR35

CV-Library Arley, Coventry CV7, UK Contractor
CL
Mar 11, 2026  
PLC Service Engineer
PLC Service Engineer (Contract – 10 Weeks) Location: Midlands (Telford and Nottinghamshire based) Contract Length: Approximately 10 weeks with potential extensions  Rate - £45ph to £50ph Outside IR35 LTD Working Pattern: 1 week of night on call only 6pm to 6am Monday to Sunday 1 week of days on call 6am to 6pm Monday to Sunday Followed by 2 weeks on days Monday to Friday 8am till 5pm of which they will be assisting with commissioning of systems or other service works required Role Overview We are seeking an experienced PLC Service Engineer to support automation and conveyor systems across the Midlands region. This is a primarily remote-based role, with engineers responding to site callouts as required. During the on call shifts the engineer isn't expected to be anywhere but at home answering the phone if a call comes in or responding to tickets as a customer raises them to us on a common platform we use. The engineer will only be expected to go to site if it is a software...
IR35 Status:
Outside IR35

CV-Library Lichfield, UK Contractor
CL
Mar 11, 2026  
Senior Mechanical Design Engineer
Mechanical Design Engineer – Water & Wastewater | Manchester (Hybrid) Location: Manchester – Hybrid working available Type: Permanent or Contract (Outside IR35) Want to design infrastructure that keeps the UK’s water and wastewater networks running safely and efficiently? Ready to take ownership of technical delivery while working on nationally important treatment works upgrades? Our client is expanding their specialist design team and is looking for a Mechanical Design Engineer to deliver high-quality, compliant solutions across major UK water industry projects. What You’ll Do Design mechanical solutions that meet safety, quality, and technical standards Produce design calculations, drawings, reports, and specifications Direct and support CAD technicians Prepare scopes and review outputs from subcontract M&E design teams Liaise with suppliers, review tenders, and specify equipment Carry out design investigations and technical reporting Ensure design changes are...
IR35 Status:
Outside IR35

CV-Library 3 Dickinson St, Manchester M1 4LF, UK Contractor
CL
Mar 07, 2026  
EC&I Project Engineer - Contract - Outside IR35
EC&I Project Engineer – Eastern Scotland – COMAH Manufacturing Facility – Contract (Outside IR35) Our client is seeking to recruit an experienced EC&I Project Engineer to support a COMAH regulated manufacturing facility in Eastern Scotland on a contract basis. This is an excellent opportunity to join a well-established, safety-critical operation delivering key capital and improvement projects. The role is offered on a contract basis and has been assessed as Outside IR35. The Role: As an EC&I Project Engineer, you will take the lead on the EC&I delivery of a multi-million-pound packaging line upgrade project. You will be responsible for managing the electrical scope of work from detailed design through to installation, integration, and commissioning. Requirements: To be successful in this role, you should have experience in the following areas: * EC&I project delivery within process or manufacturing environments * Preparation of technical specifications,...
IR35 Status:
Outside IR35

CV-Library Scotland, UK Contractor
CL
Feb 27, 2026  
Functional Safety Engineer (TUV Certified)
Functional Safety Engineer (TUV Certified) – Contract – Hybrid Location: Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. The role can be performed on a hybrid basis with weekly visits to site in West Wales. Previous site experience is and TUV Certification are essential. This role is deemed outside IR35. Role & Responsibilities * Undertaking work providing engineering support to a range of CAPEX and OPEX projects. * Performing safety specification and certification of safety instrumented systems. * Develop SRS – Safety Requirements Specification. * Develop SIS Safety Lifecycle Plan \ Functional Safety Management Plan. * Carry out SIL Verification using simplified equations. * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of design work to ensure...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Jan 27, 2026  
Senior Electrical Engineer
Location: Cardiff This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy and Nuclear sectors. Our client will consider applicants for either a staff or contract position – for a contractor the role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be able to size equipment and perform cable sizing calculations * Participation in...
IR35 Status:
Outside IR35

CV-Library Burton Ferry, Pembrokeshire Contractor
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