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Inside IR35 Contractor relief support worker

44 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  
HR Recruitment Coordinator
We are recruiting for a HR Recruitment Coordinator for a leading Defence organisation based in Stevenage, this is a hybrid role with Thursdays on site the rest WFH. Overview of department: We are looking for a pragmatic motivated recruitment co-ordinator to support the delivery of our Early Careers Programmes (Graduates, Apprentices, Undergraduates & Summer placements). This is an exciting fast-paced environment involving a broad range of activities, from recruitment to offering general HR advice & guidance to candidates. What will you be doing? You will have a brilliant opportunity to play a key role in supporting the UK Early Careers Programme (ECP) recruitment strategy and in line with the overall business requirements. This will include; Advertising job requisitions Supporting HR advisors in the role review and supporting hiring managers and Early Careers Recruitment internal with uploading requisitions onto internal recruitment/HR platform (Workday) Assessment...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire 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
Jul 01, 2026  
Technical Publications Specialist
Technical Publications Specialist. Military Helicopter programme Location: Gosport - Hybrid Working (3 days onsite) Security Clearance: SC Required Contract Duration: 6 Months Rate: £40-£44 per hour (37.5hr per week) Inside IR35 The Role: We are seeking an experienced Technical Publications Specialist to join a high-profile aerospace and defence programme supporting the CH-47 Chinook platform. This is an exciting opportunity to take a lead role within a specialist publications team, ensuring the delivery of high-quality technical documentation in support of critical defence operations. The successful candidate will act as a subject matter expert within the technical publications function, supporting publication delivery, stakeholder engagement, quality assurance, and continuous improvement activities. This role would suit an experienced technical publications professional with strong aerospace or defence sector experience and a background in leading publication activities...
IR35 Status:
Inside IR35

CV-Library Gosport, Hampshire Contractor
CL
Jun 30, 2026  
Directory Services SME (Entra, Azure, InTune)
Directory Services SME Duration: Until December 2026 Rate: £500 - £600 per day (Inside IR35 via umbrella) Location: Warwickshire with occasional travel - Candidates UK wide can be considered Our leading financial services client in the Midlands requires a very experienced, high level Windows Technical Engineer, with expertise in Directory Services, to support a major IT Data Centre Exit transformation programme. Our client is migrating its infrastructure from traditional on-premises physical data centres to Agile, cloud-based environments. The role - Full discovery and mapping of AD, Entra and intune estate including responsibilities and current standards Document new standards, policies, recommendations, responsibilities, design principles and alignment of directory services Implementation of new standards, policies, recommendations, responsibilities, design principles and alignment of directory services, working with vendors where applicable Ensure that new operational...
IR35 Status:
Inside IR35

CV-Library Warwickshire, UK Contractor
CL
Jun 28, 2026  
MLOps Engineer
MLOps Engineer Location: Remote (Occasional travel to their London office) Contract: Inside IR35 Day rate: Up to £800 per day Duration: 6 months Start date: ASAP Key words: Machine Learning, Python, containerization (Docker), CI/CD, Azure As part of our Client's AI Engineering team, you will own the infrastructure and delivery pipelines that keep our AI-driven products reliable, scalable, and fast. You will design and maintain the cloud environments, CI/CD workflows, and observability systems that enable our engineers to ship with confidence. Key Skills: - Solid programming skills in Python (plus experience with web libraries like FastAPI, Flask, or Django) - Hands-on experience with ML model deployment and monitoring in production Knowledge of containerization (Docker) - Experience with CI/CD pipelines and cloud environments (we use Azure) Assignment Objectives - Implement or improve model monitoring and operational controls for AI/ML systems. - Build and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jun 28, 2026  
Senior Platform Engineer
Senior Platform Engineer Location: Remote (Occasional travel to their London office) Contract: Inside IR35 Day rate: Up to £800 per day Duration: 6 months Start date: ASAP Key words: Azure, Terraform, containerization, CI/CD As part of our Client's AI Engineering team, you will own the infrastructure and delivery pipelines that keep our AI-driven products reliable, scalable, and fast. You will design and maintain the cloud environments, CI/CD workflows, and observability systems that enable our engineers to ship with confidence. Key Skills: - Strong experience with Azure cloud services (compute, networking, storage, identity) - Proficiency with Infrastructure as Code (Terraform) - Solid experience building and maintaining CI/CD pipelines (GitHub Actions) - Hands-on experience with container orchestration (Kubernetes, Docker) - Proficiency in scripting and automation (Python, Bash, or similar) - Understanding of networking fundamentals, security best practices, and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jun 28, 2026  
Aviation Technical Publications Specialist
Our client has an opportunity for an experienced Aviation Technical Publications Development/Authoring Specialist to join them working on the UK CH-47 programme. This is an exciting opportunity to join an established organisation providing class leading support in a rotary wing engineering MRO environment. Role: Technical Publications Specialist Location: UK South Coast Shifts: Full-Time, Days, Mon - Fri IR35 Status: Inside Security Clearance: Full SC clearance is required Hourly Rate: TBA Assignment Duration: 6 Months For your application to be considered it is a requirement that you hold UK 'right to work' at the time of application. The role involves organising, reviewing, and editing technical publications, documentation, and related data, while gathering and analysing customer requirements to define scope and deliverables. You will support a variety of technical publications for the platform, including the development and maintenance of Aircraft Maintenance Manuals...
IR35 Status:
Inside IR35

CV-Library Gosport, Hampshire Contractor
CL
Jun 28, 2026  
Senior Category Buyer
Senior Category Buyer (Infrastructure / NEC Contracts) Location: Warwick (Hybrid - with supplier site visits) Pay Rate: £500 per day via umbrella (Inside IR35) Contract Length:12-month contract The Opportunity We're supporting a major UK infrastructure organisation at a pivotal point in a long-term investment programme. They are looking for an experienced Senior Category Buyer to take ownership of a newly established procurement framework and play a key role in delivering a pipeline of critical projects. This is a fantastic opportunity to step into a high-impact, autonomous role, where you'll help shape procurement delivery over the next five years - blending strategic influence with hands-on sourcing. The Role This is a high-volume, delivery-focused procurement role, where success comes from managing multiple sourcing activities simultaneously rather than focusing on one large project. You'll play a key role in bringing suppliers, project teams, and internal stakeholders...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
Jun 27, 2026  
Security Designer/Security Architect
Security Designer/Security Architect (SC Cleared) - Remote- £500 - £600 per day Inside IR35 DOE Role Overview We are seeking an experienced SC Cleared Security Design/Security Architect to support the delivery of secure services within a major Home Office programme. The successful candidate will work with solution architects, engineering teams, security stakeholders and delivery managers to ensure security requirements are effectively incorporated into system and service designs. The Security Design/Security Architect will be responsible for producing security designs, undertaking threat modelling activities, assessing security risks, supporting assurance processes and ensuring compliance with wider Government security standards. Key Responsibilities Develop and maintain security design documentation for new and existing services. Produce Security Design Packs, Security Architecture Documents and Security Assurance artefacts. Conduct threat modelling workshops and document...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Jun 27, 2026  
Senior Project Planner
Senior Project Planner Location: Aberdeen (Aberdeen Airport) - 4 days per week onsite Duration: 6 months Rate: £450/day Umbrella IR35: Inside Clearance: Eligible for SC Clearance Overview We're looking for an experienced Senior Planner to create, maintain and assure programme/project schedules in line with a Business Change Framework. You'll interpret business cases, technical documentation, cost estimates, commercial contracts and finance data to provide accurate forecasts and support delivery to Quality, Cost and Delivery (QCD). You'll also support the use of SAP tools and procedures for project planning/control, and provide line management for project planners/trainee planners. Responsibilities: Design and create a Work Breakdown Structure (WBS)that meets technical requirements and aligns to the product delivery lifecycle * Design and create a deliverable programme/project schedule meeting technical scope, budget and timescales * Create and maintain a portfolio of...
IR35 Status:
Inside IR35

CV-Library Aberdeen, 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 27, 2026  
Section Engineer
Section Engineer Devonport, Southwest England 12 month contract (inside IR35) We're recruiting for a Section Engineer to join a major infrastructure project in Devonport. This is a fantastic opportunity to play a key role on a complex, high-profile scheme within a collaborative delivery environment. The Role You will take ownership of a section of works, ensuring construction is delivered safely, on programme, and to the highest quality standards. Working in a client-facing capacity, you'll coordinate site teams and subcontractors while supporting overall project performance. Key Responsibilities Oversee site activities, subcontractors, and daily coordination of works Ensure compliance with health & safety, RAMS, and site procedures Review technical drawings and documentation, raising RFIs/TQs/NCRs as required Manage risks and support planning/programming of works Engage with stakeholders and contribute to reporting and project delivery About You Minimum 2+ years'...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Jun 27, 2026  
Software and Systems Defect Coordination Engineer
Position Title: Software and Systems Defect Coordination Engineer Duration: Contract Location: Gaydon Based in West Midlands £33.88 per hour (Inside IR35) *Applicants MUST have proof of immediate, on-going and valid eligibility, to work full time, and travel within, the UK* Duties: This role, Software and systems defect coordination engineer, is responsible for overseeing the timely identification, tracking, and resolution of software and system issues across complex systems. While the role demands a high level of technical understanding, it is not hands-on in nature. The successful candidate will ensure consistent adherence to established processes, effective utilisation of issue management tools and clear and transparent reporting to senior stakeholders. Key aspects of this role involves the ability to drive and prioritise actions and process changes based on clear KPIs around defect management with stakeholders across the company. Strong skills in developing metrics,...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
Jun 26, 2026  
Skilled Civils Operative - BESS Project
Skilled Operative x6 - BESS Projects Location: Monk Fryston, North Yorkshire Project: SSER BESS Site, Rawfield Lane Start Date: 15th June 2026 Duration: Until 28th August 2026 Positions Available: 6 Hours: 45 Hours Per Week Working Hours: 07:00 - 17:00 Rate: £28.50 per hour IR35 Status: Inside IR35 Payment: CIS We are currently recruiting for 6 Skilled Operatives to support the delivery of a major Battery Energy Storage System (BESS) project at Monk Fryston. This is an excellent opportunity to join a leading energy infrastructure contractor working on a high-profile renewable energy development. Duties & Responsibilities: Civil works associated with BESS and electrical infrastructure construction Installation of ducts and cable routes Cable pulling and cable management activities Assisting with trenching, reinstatement and general groundwork duties Supporting site teams with construction and installation activities General site duties as required by the project team...
IR35 Status:
Inside IR35

CV-Library Castleford, West Yorkshire Contractor
CL
Jun 26, 2026  
Software and Systems Test Coordination Engineer
Position Title: Software and Systems Test Coordination Engineer Duration: Contract Location: Gaydon Based in West Midlands £35.80 per hour (Inside IR35) *Applicants MUST have proof of immediate, on-going and valid eligibility, to work full time, and travel within, the UK* Duties: This role (Software and systems test coordination engineer) is responsible for overseeing the overall testing status of the EVA25 programs. While the role demands a high level of technical understanding, it is not hands-on testing role. The successful candidate will ensure consistent adherence to established processes, effective utilisation of issue management tools and clear and transparent reporting to senior stakeholders.​ Key aspects of this role involves the ability to drive and prioritise actions and process changes based on clear KPIs around testing management with stakeholders across the company. Strong skills in developing metrics, dashboards and professional presentations are...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
Jun 26, 2026  
Integration Engineer
Position Title: Integration Engineer Duration: Contract Location: Gaydon Based in West Midlands £35.80 per hour (Inside IR35) *Applicants MUST have proof of immediate, on-going and valid eligibility, to work full time, and travel within, the UK* Duties: This role is to lead the diagnosis of software and systems issues in the development phase of automotive vehicle platforms. The successful candidate will be part of the Central Systems Integration team. CSI have the key responsibility of planning and coordinating delivery of software from multiple ECUs which when combined deliver the features and systems of the vehicle under development. This particular role within CSI will focus on issues resolution, specifically understanding root cause and assisting with resolution of systems and software issues within the vehicle. They will engage directly with complex issues to aid with data gathering, defining the problem, analysing the data with the intent to understand which team...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire 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
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