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Contractor 17
Engineering Inside IR35 relief support worker

17 relief support worker jobs found

CL
Mar 08, 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 (Hybrid Considered) Shifts: Full-Time, Days, Mon - Fri IR35 Status: Inside Security Clearance: Full SC clearance is required, can start with BPSS 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...
IR35 Status:
Inside IR35

CV-Library Gosport, Hampshire Contractor
CL
Mar 08, 2026  
Senior Product Engineer
Senior Product Engineer Belcan seeks an experienced Senior Product Engineer for a 12-month Inside IR35 contract in Hertfordshire. The role involves leading engineering work packages for the development, validation, and industrialisation of smart motor and power generation technologies. Key Responsibilities Lead and mentor multidisciplinary engineering teams to deliver robust, manufacturable solutions aligned with cost and weight targets. Oversee and approve design solutions; support design reviews per client governance and product introduction processes. Produce high-quality technical documentation, including CAD models, drawings, BOMs, and assurance reports. Drive risk management and continuous improvement through design investigations, root cause analysis, and lessons learned. Author, review, and approve technical documentation for engineering and through-life support. Provide training, mentoring, and leadership to engineering personnel. Deliver fit-for-purpose designs with a...
IR35 Status:
Inside IR35

CV-Library Tring, Hertfordshire Contractor
CL
Mar 07, 2026  
Mechanical Power and Propulsion Engineer
12 Month Contract – Inside IR35 £46.90 - £52.54 per hour umbrella Hybrid working – 1 -2 days per week on site Job Role: To provide Mechanical Engineering support to the Power & Propulsion systems team engaged in the functional design of Propulsion Systems on the River Class Destroyer Program for the Royal Canadian Navy. This includes design of mechanical system schematics, engineering change requests and other design definition documents and calculations. Key areas of activity: Contribute to mechanical elements of the design of the River Class Destroyer Power and Propulsion systems. Including: Propulsion Motors Diesel Generators Gas Turbine Propulsion Gearbox Shaftline Steering gear and Stabilisers Provide support to the team in order to assess technical compliance, integration and review of design documentation for the ship’s propulsion motors procurement pack. Implement change to P&P systems away from baseline ship design, assessing impacts on equipment, systems...
IR35 Status:
Inside IR35

CV-Library Portsmouth, UK Contractor
CL
Mar 07, 2026  
Quality Engineer
Quality Engineer Glascoed Based £30.41 an hour Umbrella Inside IR35 12 Month Contract initially. This is a great opportunity to work within one of the UK's leading Defence organisations based In Glascoed. Typical duties include (but are not limited to): Review Shop Floor records (e.g. 'SMDCP' documents), 'First Off' items for Quality Dept. approval, technical specifications, drawings, and endorse Certificates of Conformity as an approved signatory. Perform Internal Audits, support External Audits, and support the development of audit responses and robust corrective actions which prevent identified problems from ever happening again. Monitor and analyse reject, rework, and RFT data, and present information to management Monitor and support non-conformance / quality issue management ('CAR', 'Q1', 'Q2', 'Q3', etc.) Drive and support targeted CI (Continuous Improvement) activities, focussing on (A) Reduced Rejects and Costs  (B) Improved operational workflows, throughput, and...
IR35 Status:
Inside IR35

CV-Library Usk, Monmouthshire Contractor
CL
Mar 07, 2026  
EC&I Designer-Nuclear
EC&I Designer - PFCS Project (Sellafield) Contract | £35-£42/hour (Inside IR35) Warrington | Hybrid - 3 days on site / 2 days remote Sector: Nuclear | PFCS Programme Are you an experienced EC&I Designer looking to contribute to one of Sellafield's most challenging decommissioning programmes? This is a hands-on role supporting the PFCS (Pile Fuel Cladding Silo) project, delivering high-quality EC&I design packages for safety-critical systems. You'll work within a collaborative engineering team, producing and checking designs, documentation, and drawings that underpin project delivery. The role offers a hybrid working arrangement, combining three days per week in Warrington with remote work flexibility. Key Responsibilities Produce and develop EC&I design packages, drawings, and technical documentation for PFCS systems Review and update existing designs to meet project requirements and engineering standards Ensure designs comply with Sellafield procedures,...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Mar 07, 2026  
Senior EC & I Engineer -Nuclear
Senior CE&I Engineer - PFCS Projects (Sellafield) Contract | £51-£56/hour (Inside IR35) Warrington | Hybrid - 3 days on site / 2 days remote Are you a Senior Control, Electrical & Instrumentation Engineer looking to apply your expertise on one of Sellafield's most critical legacy clean-up programmes? We're seeking a Senior CE&I Engineer to support the PFCS (Pile Fuel Cladding Silo) projects, delivering robust CE&I design and safety documentation within a highly regulated nuclear environment. This role offers the opportunity to work at the heart of a nationally significant decommissioning mission, contributing to safety-critical systems that underpin long-term hazard reduction at Sellafield. Key Responsibilities Deliver CE&I design work packages across a broad range of PFCS project scopes Produce and check design substantiation, safety documentation, and technical deliverables Provide expert CE&I input into design justification and safety case...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Mar 07, 2026  
Mechanical Power and Propulsion Engineer
12 Month Contract – Inside IR35 £46.90 - £52.54 per hour umbrella Hybrid working – 1 -2 days per week on site Job Role: To provide Mechanical Engineering support to the Power & Propulsion systems team engaged in the functional design of Propulsion Systems on the River Class Destroyer Program for the Royal Canadian Navy. This includes design of mechanical system schematics, engineering change requests and other design definition documents and calculations. Key areas of activity: Contribute to mechanical elements of the design of the River Class Destroyer Power and Propulsion systems. Including: Propulsion Motors Diesel Generators Gas Turbine Propulsion Gearbox Shaftline Steering gear and Stabilisers Provide support to the team in order to assess technical compliance, integration and review of design documentation for the ship’s propulsion motors procurement pack. Implement change to P&P systems away from baseline ship design, assessing impacts on equipment, systems...
IR35 Status:
Inside IR35

CV-Library Glasgow, UK Contractor
CL
Mar 07, 2026  
Senior or Principal Mechanical Engineer
Contract Opportunity: Senior / Principal Mechanical Engineer Sellafield MSSS-OBLM Projects £51-£61 per hour (Inside IR35) Hybrid - 3 days per week in Warrington Sector: Nuclear | MSSS-OBLM Programme Are you an experienced Senior or Principal Mechanical Engineer looking to play a key role on one of Sellafield's most critical programmes? This opportunity sits within the MSSS-OBLM (Multi-Storey Seismic Stores - On-Balance Legacy Materials) projects, delivering essential mechanical engineering support to safety-critical, legacy nuclear infrastructure. You'll provide technical leadership and delivery assurance across task-based mechanical work packages, supporting the safe progression of complex designs within a highly regulated environment. The role offers a hybrid working model, balancing collaboration in Warrington with remote working flexibility. Key Responsibilities Deliver and manage mechanical engineering tasks across MSSS-OBLM project scopes Develop, review and approve...
IR35 Status:
Inside IR35

CV-Library Cumbria, UK Contractor
CL
Mar 07, 2026  
Mechanical Handling Engineer
Mechanical Handling Engineer Contract - Inside IR35 Location: Risley, Warrington -Hybrid Rate: £42-51/hour (Umbrella) Are you an experienced Mechanical Engineer ready to tackle complex handling and lifting challenges? We're looking for a talented Mechanical Handling Engineer to join a growing technical team delivering innovative, fit-for-purpose solutions for high-profile engineering projects. This role involves working across multiple systems, developing creative design solutions that meet stringent regulatory, budget, and schedule requirements. If you're passionate about solving complex problems and delivering engineering excellence, we want to hear from you. Clearance: BPSS at baseline level (prior clearances will not transfer). What You'll Do Deliver mechanical design solutions for complex systems, ensuring compliance with budget, schedule, and quality targets. Break down complex problems, presenting clear resolution options to aid decision-making. Develop and maintain...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Mar 07, 2026  
Lead Electrical Protection Engineer
Contract Details & Working Arrangement * Rate: £440 per day * Inside IR35 * 6-month contract with potential for extension * Hybrid working: 3 days on site and 2 days remote per week * Tuesday and Wednesday are mandatory on-site days (Third on-site day is flexible) * No travel required About the job Vickerstock are proud to be working in partnership with a leading global energy and grid solutions provider to recruit a Lead Electrical Protection Engineer on a contract basis. This is a high-impact role offering exposure to complex grid automation and substation protection projects, with responsibility spanning design, testing, and commissioning. The Role As Lead Electrical Protection Engineer, you will take technical ownership of protection system design and delivery, acting as the key technical interface between customers and the wider engineering community. Reporting directly to the Engineering Team Leader, you will lead engineering activities from initial design...
IR35 Status:
Inside IR35

CV-Library Stafford, Staffordshire Contractor
CL
Mar 05, 2026  
Quality Engineer
Rullion are looking to recruit for the following role: Quality Engineer x 3 Location Sudbury UK Fully site based Monday to Friday End of January 2026/February 2026 start date 6 months initially Inside IR35 £20-30 Per hour (TBD) The Quality Operations Engineer will be responsible for maintaining, monitoring, and improving key elements of the Quality Management System (QMS) for the Sudbury Site, developing a culture of Quality by education, mentoring and example. Job Responsibilities: Provide Quality support to the Manufacturing Operations Team Support CAPA & Issue Resolution to ensure timely and accurate completion. Administer & support the deviation process to ensure timely and accurate completion. Administer & support the quality notification process to ensure timely and accurate completion. Prepare for supplier, customer, regulatory & notified body audits as required. Conduct internal & supplier quality audits as required. Support the change control...
IR35 Status:
Inside IR35

CV-Library Sudbury, Suffolk Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractor on an initial 6 month contract. 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 Mechanical Design Engineer. You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer
6 Month Contract (initially) Up to £50 per hour umbrella (Inside IR35) Circa 4 days per week on site (could be some flex on this week to week) Job Role: You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role you will have the opportunity to work as part of a multi-disciplinary team to perform a range of engineering activities including progressing developmental designs into production environments and working with suppliers on technical queries. Key Responsibilities: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies. Support/liaise with manufacturing, resolving manufacturing problems & defects. Support to functional & environmental testing and trials. Liaise with suppliers/purchasing to resolve any technical queries that may arise. Planning and reporting on own day-to-day activities to meet project milestones. Gain...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer
6 Month Contract (initially) Up to £50 per hour umbrella (Inside IR35) Circa 4 days per week on site (could be some flex on this week to week) Job Role: You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role you will have the opportunity to work as part of a multi-disciplinary team to perform a range of engineering activities including progressing developmental designs into production environments and working with suppliers on technical queries. Key Responsibilities: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies. Support/liaise with manufacturing, resolving manufacturing problems & defects. Support to functional & environmental testing and trials. Liaise with suppliers/purchasing to resolve any technical queries that may arise. Planning and reporting on own day-to-day activities to meet project milestones. Gain...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Mar 04, 2026  
Principal Mechanical Design Engineer
Principal Mechanical Design Engineer JOB LOCATION: STEVENAGE OR BRISTOL SECURITY: SC - Potential BPSS start (UKEO) DURATION: 6+ Months (Extension Possible if Meeting Expectations) TYPE: Contract WORK PATTERN: 4 days a week on site; 1 remote (flexible over start/finish time). PAY RATE: £ 50 /hr (Umbrella Inside IR35) Essential QUALIFICATIONS Beneficial- HND or HNC in Mech Engineering TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered * Preferable for Def/Aero; if hitting the skills on JD, open to others; automotive, oil & gas etc. Essential Skillset & Tools * Experience using Creo 3D design tool Essential- Knowledge of the following: * Manufacturing processes * Tolerance studies * Mass property calculations * Material selection * FMEA * Design for Manufacture/Assembly * Structural design * Product Lifecycles * Industrial validation * An ability to work as part of a multifunctional...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jan 22, 2026  
Systems Engineer
World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Engineer subcontractor on an initial 6 month contract.  The department are looking for Systems Engineers ideally from the defence / aerospace background.  Previous experience of DOORS is required. Hourly Rate: £70.00ph (Umbrella).  Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bristol or Stevenage (depending on your preference) Hybrid / Remote working: The role will likely be onsite 2-3 days per week (this could reduce once up to speed in the role). A 4 day working week is OK (Monday to Thursday).  Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Airborne Launcher Functional Systems Engineer Job Description: Analyse high level design documentation to elaborate and capture...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Dec 05, 2025  
Configuration Manager
World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a Configuration Manager subcontractor on an initial 12 month contract.  The role will be a hybrid position of 1-2 days in office, rest of the week remote.   Rate: £50 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be 1-2 days per week onsite Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: Two stage interview process, telephone and video interview.   Description/Job Summary Configuration Management is pivotal to the companies success in developing and delivering engineered products to our customers and frontline users. Through the controlled application and compliance of processes, we give our programmes confidence and assurance in all products that we...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
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