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Contractor 16
Engineering Inside IR35 relief support worker

16 relief support worker jobs found

CL
Jul 01, 2026  
Senior Civil Engineer - Highway Design
Senior Civil Engineer - Highway Design Contract - Inside IR35 Rate: £45.00 - £55.00 per hour Length: 6 Month Initial Contract Hours: 37.5 Per Week Locations: ·Cardiff ·Staffordshire ·Glasgow ·Edinburgh ·Perth Arrangement: Hybrid Working - Typically 2-3 Days Per Week in the Office Are you an experienced Highways Design Engineer looking for your next contract opportunity? We are seeking Senior Civil Engineers with a strong highways design background to support the delivery of a wide range of infrastructure projects across the UK. This role would suit someone who enjoys taking ownership of schemes, working collaboratively within multidisciplinary teams and providing technical leadership throughout the design process. The successful candidate will have experience delivering highway and civil engineering projects from concept through to detailed design and will be confident managing multiple workstreams while ensuring designs are delivered to programme, budget and quality...
IR35 Status:
Inside IR35

CV-Library Edinburgh, UK Contractor
CL
Jul 01, 2026  
Commissioning Manager - Mechanical
Commissioning Manager (Mechanical Bias) - AWE Burghfield Location: AWE Burghfield (site-based, full-time) Rate: £600/day (Umbrella PAYE, Inside IR35 - all-in) Duration: ASAP - September 2026 Clearance: SC preferred (must be eligible to obtain) We are seeking an experienced Commissioning Manager (Mechanical) to support a major programme within a highly regulated nuclear environment. This role requires a technically strong, self-starting professional with deep experience in mechanical systems, commissioning processes, and documentation within controlled environments. Role Overview Lead and manage commissioning activities across mechanical systems and associated infrastructure Oversee full commissioning lifecycle including planning, execution, and handover Manage and review commissioning documentation, ensuring accuracy and compliance Coordinate with multidisciplinary teams to ensure systems are delivered safely and to specification Act as a technical authority on mechanical...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Jul 01, 2026  
Senior Control Systems Design Engineer
Senior Control Systems Design Engineer Location: Warrington, Cheshire (Hybrid – 3 days office / 2 days home working) Rate: £50.93-55.00 Umbrella per hour (inside of IR35)  Contract Length: 12 Months Initial Contract Hours: 37.5 Hours Per Week Security Clearance: Current SC Clearance preferred; candidates must be eligible and willing to obtain SC Clearance if not currently held. Sector: Nuclear / Sellafield Projects Overview Our client is seeking an experienced Senior Control Systems Design Engineer to support the delivery of complex control and instrumentation solutions across major nuclear projects. This role will focus on the design, development and verification of control systems within highly regulated environments, with a particular emphasis on Sellafield-related programmes. Working as part of a multidisciplinary engineering team, the successful candidate will be responsible for producing high-quality control system designs, technical documentation and engineering...
IR35 Status:
Inside IR35

CV-Library Warrington, UK Contractor
CL
Jul 01, 2026  
Lead EC&I Engineer
Lead EC&I Engineer (Design) – Contract (Inside IR35) Location: Warrington (Hybrid – 3 days office / 2 days remote) Rate: £55.00 – £60.00 per hour (Umbrella) Hours: 40 hours per week Duration: 12 months + Overview We are seeking an experienced Lead EC&I Engineer to support the delivery of complex design work across major nuclear projects. This is a key leadership role, responsible for overseeing EC&I design activities, ensuring technical quality, and guiding a multidisciplinary team within a highly regulated environment. Key Responsibilities Lead and manage EC&I design activities across nuclear projects from concept through to detailed design Provide technical authority and guidance to engineering teams Review and approve design documentation, including calculations, specifications, and drawings Ensure compliance with relevant industry standards, safety regulations, and client requirements Interface with clients, stakeholders, and multidisciplinary teams to...
IR35 Status:
Inside IR35

CV-Library Warrington, UK Contractor
CL
Jun 27, 2026  
Project Engineer (MEP & Building Services)
Project Engineer (MEP & Building Services) Location: Birmingham (Hybrid - Minimum 3 Days Per Week On-Site) Contract Length: 9 Months Rate: Negotiable (Inside IR35 via Umbrella) Overview HS2 is seeking an experienced Project Engineer with a strong background in MEP (Mechanical, Electrical and Plumbing) and Building Services to join the BBV-IPT team on a 9-month contract basis. This is a client-side engineering assurance and delivery role, focused on overseeing and verifying contractor design activities rather than undertaking detailed design work. The successful candidate will play a key role in ensuring the successful integration, assurance, and certification of multiple building services systems across critical HS2 infrastructure assets. Key Responsibilities Act as the client-side Project Engineer for building services packages across multiple HS2 assets. Oversee and verify contractor self-assurance processes during the design phase. Review contractor submissions to...
IR35 Status:
Inside IR35

CV-Library Birmingham, West Midlands Contractor
CL
Jun 26, 2026  
Principal Commissioning Engineer (EC&I)
Role: Principal Commissioning Engineer (EC&I) Location: Plymouth Duration: 12 months Inside IR35 : Umbrella Main Purpose: The role exists in order to develop and implement site commissioning arrangements across all aspects of site activities (e.g. Installation, Commissioning, Handover) in support of the overall project lifecycle. The Principal Commissioning Engineer is responsible for ensuring that activities for the MENSA project are planned and undertaken in line with approved procedures as directed by the Commissioning Manager (or delegate) and report any technical or safety issues via the correct reports (Commissioning Reservations, Technical Queries and Synergi) as appropriate. The Principal Commissioning Engineer will also undertake specific activities on behalf of the Commissioning function as required activities if required. Responsibilities Supervision of the Commissioning Engineers / Technicians under their direct responsibility. Adherence to the agreed...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Jun 26, 2026  
Skilled Train Maintainer
Skilled Train Maintainer £38.52 Umbrella (Inside IR35) Permanent nights, mix of 4 on / 4 off and 5 on / 5 off 3-month rolling contract (with strong long-term potential for the right candidate) Level 3 Qualification in Engineering required The Role Step into a hub of technical excellence, handling the inspection, maintenance, fault diagnosis, and overhaul on passenger fleets. We’re recruiting skilled Technicians to join a cutting-edge rail operation in the North where innovation meets precision. If you take pride in precision engineering and want to work in a facility designed for excellence, this role is built for you Key Responsibilities Carry out servicing, maintenance, repair, and overhaul of traction and rolling stock to company standards (Mechanical and Electrical) Diagnose faults and implement effective solutions Use and maintain tools, equipment, and materials responsibly Operate plant and equipment in line with competency certification Follow all technical...
IR35 Status:
Inside IR35

CV-Library Newcastle upon Tyne, UK Contractor
CL
Jun 25, 2026  
Mechanical Supervisor
Job Title: Mechanical Supervisor Location: Beckton Rate: £450 per day (Inside IR35 Umbrella PAYE) Duration: 12 months+ Sector: Water / Wastewater The Company We are working in partnership with a leading Tier 1 Water/Wastewater contractor, delivering large capital delivery schemes on behalf of Thames Water. With multiple live projects across clean water sites, they are looking to strengthen their delivery team with the appointment of an experienced Mechanical Supervisor. The Role As a Mechanical Supervisor, you will play a key role in the successful delivery of mechanical packages across major water infrastructure projects. You will oversee site activities, ensuring compliance with safety, quality, and programme targets, while supervising both directly employed staff and subcontractors. Key Responsibilities ·Supervise and coordinate mechanical works, including pipework fabrication, welding, and inspection. ·Review and interpret P&IDs and GA drawings to support...
IR35 Status:
Inside IR35

CV-Library Beckton, London, UK Contractor
CL
Jun 25, 2026  
Technical Incoming Inspector
MERITUS are recruiting for a Technical Incoming Inspector to join an aerospace business based in Belfast on an initial 6 month contract. TECHNICAL INCOMING INSPECTOR - INSIDE IR35 - £31.90 PER HOUR - 6 MONTHS UNTIL 17/11/2026 - BELFAST - SINGLE STAGE INTERVIEW PROCESS - SECTOR: AEROSPACE We are supporting a leading aerospace manufacturing organisation in the search for a Technical Incoming Inspector to join their Supply Chain and Quality team in Belfast. This position offers the opportunity to play an important role in maintaining product quality and compliance standards within a highly regulated technical environment. Working collaboratively with colleagues across manufacturing, quality and supply chain functions, you will help ensure components and assemblies meet the required specifications, customer expectations and industry standards. Key Responsibilities Conduct incoming inspection activities to verify the quality and conformity of materials, components and assemblies....
IR35 Status:
Inside IR35

CV-Library Belfast, County Antrim Contractor
CL
Jun 21, 2026  
Quality Advisor
NES Fircroft are working on behalf of an industry leading power cabling client, sourcing a site Quality Advisor. The Site Quality Advisor will be responsible for site works on the project in regard to Quality, ISO and intercompany standards. Supporting on a high-profile project at the forefront of the green energy transition. Site Quality Advisor Contract position Hybrid working: locations Dunbar and Seaham The chosen candidate will plan, organize, lead and monitor all Quality work during site execution to ensure we satisfy customer expectations. This includes works undertaken internally in addition to the work performed by our subcontractors and/or partners as required for the project. Please note this has been assessed as Inside IR35 (PAYE Umbrella Only). Accountabilities Site Quality Planning Review contractual and local requirements applicable to site quality Review lessons learnt from previous projects and relevant project plans (e.g SQP, SMP) Review Contractor...
IR35 Status:
Inside IR35

CV-Library Dunbar, UK Contractor
CL
Jun 18, 2026  
Project Engineering Consultant
Title: Project Engineering Consultant Position Type: Contract Location: Northumberland Categories: Engineering, Project Management PM Group requires project engineering support to deliver a pharmaceutical capital project, including the design, construction, and commissioning of a packing hall and warehouse facility. Responsibilities Facilities, Utilities & Live Site Tie‑Ins * Lead and support engineering activities related to mechanical utility systems, including HVAC, heating/cooling systems, compressed air, water systems, and drainage. * Plan, coordinate, and execute live site utility tie‑ins, isolations, and cut‑overs to existing systems, minimising disruption to operations. * Develop and review tie‑in strategies, method statements, and sequencing plans for works on a live GMP site. * Coordinate interfaces between new and existing buildings, utilities, and infrastructure. Equipment Engineering & Delivery * Develop and review User Requirement...
IR35 Status:
Inside IR35

CV-Library North East, UK Contractor
CL
Jun 11, 2026  
Training Lead
World Class Defence Organisation based in Bristol is currently looking to recruit a Training Lead subcontractor on an initial 6 month contract.   This role would suit someone from a Training Lead / Training Manager background.   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bristol Hybrid / Remote working: circa 2 days onsite Duration: 6 months, scope to extend up to 2 years IR35 status: Inside IR35 (Umbrella)   Training Lead Job Description: Training Role for the Transfer of Knowledge programmes into Poland. Polish speaker would be a massive advantage – contracted to deliver training in English but would be a huge bonus.   Need someone from a technical training background to review material/documentation May be presenting training material if required – will be focused on building the material rather than delivery.  Microsoft PPT/office experience   Do not need to have Defence background...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
May 23, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 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 or Bristol – depending on your preference Hybrid / Remote working: 4 days a week likely onsite (likely could be lower on a week by week basis; depending on work). 1 day remote. (flexible on start and finish time). A compressed 4 day week (Monday to Thursday) a possibility. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 23, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 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 or Bristol – depending on your preference Hybrid / Remote working: 4 days a week likely onsite (likely could be lower on a week by week basis; depending on work). 1 day remote. (flexible on start and finish time). A compressed 4 day week (Monday to Thursday) a possibility. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 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...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
May 07, 2026  
Systems Engineer Manager
World Class Defence Organisation is currently looking to recruit a Head of FCAS Systems Design Co-Ordination ( Systems Engineer Manager ) subcontractor on an initial 6 month contract.    This position would suit a candite from the Defence / Aerospace industries and from a Systems Engineering Management background.   Rate: £80.00 per hour Location: Bristol, Stevenage or Bolton, depending on your preference.  Hybrid / Remote working: Hybrid, 3 days per week onsite (the department can offer a compressed 4 day week of Monday to Thursday) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview Head of FCAS Systems Design Co-Ordination Job Description:   FCAS is one of the largest, most exciting and challenging programmes within Defence – to design and deliver a Future...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 07, 2026  
Systems Engineer Manager
World Class Defence Organisation is currently looking to recruit a Head of FCAS Systems Design Co-Ordination ( Systems Engineer Manager ) subcontractor on an initial 6 month contract.    This position would suit a candite from the Defence / Aerospace industries and from a Systems Engineering Management background.   Rate: £80.00 per hour Location: Bristol, Stevenage or Bolton, depending on your preference.  Hybrid / Remote working: Hybrid, 3 days per week onsite (the department can offer a compressed 4 day week of Monday to Thursday) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview Head of FCAS Systems Design Co-Ordination Job Description:   FCAS is one of the largest, most exciting and challenging programmes within Defence – to design and deliver a Future...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
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