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Contractor 23
Engineering Outside IR35 Sheffield

23 jobs found in Sheffield

CL
Dec 25, 2025  
Principal Civil/Structural Engineer (Rail)
Senior Civil/Structural Engineer (Rail) | 9 Months Outside IR35 | Hybrid London, Liverpool, Manchester I am looking for a Senior/Principal Civil/Structural Engineer to support on a wide variety of rail infrastructure projects including stations, platforms, Access for All footbridges, car parks and multidisciplinary framework works. Expereince: Strong technical design skills in civil and/or structural engineering Ability to find practical and creative engineering solutions Experience preparing and checking design packages on Network Rail projects Knowledge of NR standards and multidisciplinary interfaces Experience as (or working towards becoming) a Contractor's Responsible Engineer Chartered or Incorporated Engineer status, or actively working toward it (ICE or IStructE) Experience mentoring and supporting technicians Hands-on experience with relevant design software (e.g., Tekla, Microstation or CAD) ersg are an equal opportunities employer; we are committed to...
IR35 Status:
Outside IR35

CV-Library 1 Effingham St, Rotherham S65 1AJ, UK Contractor
CL
Dec 02, 2025  
B1 Engineer
Due to an increase in business, our client, a single source service provider to the Aviation industry providing solutions which include aircraft maintenance, storage, disassembly, ground/cargo handling, parts sourcing, and FBO services, is recruiting for B1 Aircraft Engineers. * IMMEDIATE STARTS!!!! * Contract work for a period of 5 – 6 months with priority to return next season. * Negotiable. Highly competitive and flexibility for the right engineers. * Setup outside of IR35 * Approx. 200 hours per month. * Working onsite on a 5 on, 5 off, 4 on, 4 off shift pattern (7am-7pm) Main Purpose of the Role; Reporting to Hangar Crew Chief, B1 Licensed Aircraft Engineers will be responsible for performing maintenance on time and by the applicable requirements, regulations, and approved standards so that all maintenance is released to service in a safe and compliant manner. The Licensed Aircraft Engineer role also includes tasks not directly related to maintenance, but...
IR35 Status:
Outside IR35

CV-Library 1 Effingham St, Rotherham S65 1AJ, UK Contractor
CL
Oct 02, 2025  
Design Engineer -NPI
Design Engineer CIRCA £50 Per Hour LTD Derbyshire Contract – Outside of IR35, Certain Advantage are working on behalf of a global supplier of precision-machined components and sub-assemblies. Due to continued growth, an opportunity has arisen for a Gas turbine Design Engineer (NPI) on a contract basis and can be worked through your own LTD Company. The role is located in the Derbyshire area Seeking an experienced problem solver to conduct analyses and contribute to innovating in New Product Introduction (NPI) programmes. Experience in Design and development of: Compressor/Fan Structural and rotating parts. Rotating Shaft, Shaft cone, Bearing support and Bearing design Development rig design, analysis and integration. Material selection 3D part modelling and drafting. Interface control definition Stack up/Layout creation. In depth knowledge of GD&T, manufacturing methods. Part tolerancing with Design for manufacturing applications Performing design calculations...
IR35 Status:
Outside IR35

CV-Library Derbyshire, UK Contractor
CL
Dec 25, 2025  
Mechanical Design Engineer
Mechanical Design Engineers (Outside of IR35) Certain Advantage is hiring for Mechanical Design Engineers based in the Huddersfield area. This role is on a contract basis and is hybrid-based. The Company We’re working with an engineering company specialising in solving complex engineering challenges across industries—from Power Generation, Rail and more. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for Mechanical Design Engineers—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be leading a small, experienced, and collaborative team, and be responsible for: Detailed design Material selection, hand calculation, rotor dynamics Conceptual design, 3D and 2D modelling BOM and gear data generation Concession/Non-conformance assessment and resolutionThe Individual We’re looking for people who can show: Structural design practices and methodologies...
IR35 Status:
Outside IR35

CV-Library Huddersfield, UK Contractor
CL
Dec 26, 2025  
Site Agent
A leading civil engineering contractor is seeking an experienced Site Agent to oversee heavy civils and structural works on a major infrastructure programme in Leeds. This is a long-term, 12-month contract operating outside IR35 with competitive day rates available. Role Responsibilities * Lead day-to-day site operations across heavy civils and structural activities * Manage site teams, subcontractors and suppliers to ensure safe and efficient delivery * Ensure adherence to all health and safety procedures, RAMS and quality standards * Work closely with Project Managers, Engineers and client representatives * Oversee programme delivery, cost control, site documentation and reporting * Drive progress to ensure key milestones are achieved on time and within budget Requirements * Proven experience as a Site Agent on heavy civils or structural projects * Strong knowledge of concrete works, bridges, retaining...
IR35 Status:
Outside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
Oct 02, 2025  
Stress Engineer - Gas Turbines (Outside of IR35)
Stress Engineers – Gas Turbines (Outside of IR35) Certain Advantage is hiring for Stress Engineers – Gas Turbines based in the Derby area. This role is on a contract basis and is hybrid-based. The Company We’re working with an engineering company specialising in solving complex engineering challenges across industries—from aerospace and automotive to healthcare and semiconductors. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Stress Engineer-Gas Turbines—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be leading a small, experienced, and collaborative team, and be responsible for: Stress analysis on development projects Compliance with aerospace industry standards Contribution to innovating in New Product Introduction (NPI) programmesThe Individual We’re looking for people who can show: Stress and Lifting (fatigue, damage tolerance/...
IR35 Status:
Outside IR35

CV-Library Derby, UK Contractor
CL
Oct 02, 2025  
Stress Engineer
Stress Engineer Outside IR35  Certain Advantage are hiring for a Stress Engineer based in Derby. This role is on a 12-month contract basis. The role Ownership of stress analysis of assigned components. Collaborate with support functions as needed (stress analysis, life management, heat transfer, materials, design). Ensure assigned components meet all technical and functional requirements. Interface with global engineering organizations and other internal organizations (e.g. design) as required to support activity on assigned components. Generate and deliver technical/program presentations to internal and external customers as required (systems tech review, design review and internal analysis review). Write Design Study Summaries (Design Definition Record), Technical Memorandums, Coordination Memos, and Certification Reports as required to document design engineering activity on assigned components.  The individual: 3+ years gas turbine experience 2D/3D stress analysis of...
IR35 Status:
Outside IR35

CV-Library Derby, UK Contractor
CL
Dec 28, 2025  
Electrical Maintenance Engineer
We are seeking a dependable and experienced Electrical Maintenance Engineer to join our clients team on an ongoing contract basis within a demanding manufacturing environment. You will work on a rotating 3-shift pattern, carrying out maintenance on high-duty production machinery and electrical systems to minimise downtime and maintain safe, efficient operations. This role will be based just outside of Nottingham. Key Responsibilities Carry out planned preventative maintenance (PPM) and reactive repairs on heavy industrial plant and production equipment. Diagnose electrical faults and implement effective, timely repairs. Work on motors, VSDs (Variable Speed Drives), 3-phase systems, and safety relays as part of routine maintenance and breakdown response. Ensure all work complies with site safety standards, regulations, and electrical legislation. Requirements Proven experience as an Electrical Maintenance Engineer in heavy industry (concrete manufacturing, aggregates, cement,...
IR35 Status:
Outside IR35

CV-Library Nottingham, Nottinghamshire Contractor
CL
Dec 27, 2025  
Design Lead
Job Title: Design Manager / Technical Manager – Water Framework Location: Hybrid Contract Type: Contract (Outside IR35) Engagement Term: 12-month contract with project scope extending through AMP8 Salary: Day rate dependent on scheme allocation About the Role We are looking for a highly skilled and motivated Design Manager or Technical Manager to lead and coordinate design activities across our Water Framework projects. This role is critical in ensuring technical excellence, integrated design delivery, and compliance with both regulatory and client standards throughout the project lifecycle. Key Responsibilities Lead the design development of water infrastructure projects including clean water, wastewater, pumping stations, and treatment facilities. Manage multi-disciplinary design teams (civil, structural, mechanical, electrical) to deliver coordinated and buildable solutions. Serve as the technical interface between clients, consultants, contractors, and internal teams....
IR35 Status:
Outside IR35

CV-Library Nottingham, UK Contractor
CL
Jan 09, 2026  
Signalling Project Engineer
Signalling Project Engineer Manchester 12 months contract £(Apply online only) per day Outside of IR35 About the Role We are looking for a proactive Signalling Project Engineer to support the successful delivery of engineering packages within our rail signalling projects. You will play a key role in ensuring technical excellence, on-time delivery, and compliance with safety and quality standards. This role also provides the opportunity to take on Assistant Project Engineer responsibilities on smaller projects. Key Requirements * Applicants MUST have undertaken the CEM role in multidiscipline projects. * Applicants MUST hold a fully licenced IRSE Project Engineer Licence of at least 7.8.110F. * Appreciation of Design, Construction, Testing and Possession Planning. * Maintain an updated IRSE Logbook. * Hold an IRSE Assistant Designer / Test Licence. * Valid ATW and SWL/COSS competencies. * Knowledge or experience of safe working on the railway. * Awareness of Network...
IR35 Status:
Outside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Dec 25, 2025  
Contract Structural Engineer (Resident/Site/Chartered)
Chartered Structural Engineer (Resident/Site based) Manchester c£50-£55/hr (outside IR35). We require a chartered structural engineer for a 6 month contract (40 hours per week) for our consultancy client to be based on a large heritage refurbishment project in Manchester. The role will require you to be on site in Manchester 4 days a week (1 day off site). The role will involve: * Acting as lead on the project for our client (consultancy) * Attend project meetings with client, contractors, sub contractors etc * No design, checking, reviewing, liaising on site with client representatives/contractor/other parties etc *the role requires you to be a chartered engineer 6 months contract rate £50-£55/hr outside IR35 Please email your cv in the first instance or call for more info
IR35 Status:
Outside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Dec 25, 2025  
Senior Civil Structural Engineer
Senior Civil & Structural Engineers Our client is currently looking for multiple Senior Civil & Structural Engineers, the role is working Outside of IR35 and will be mostly working from your home office with the occasional site visitation, design review and client meeting attendance required. Candidates must have a minimum of 5 years experience and have experience with working in Temporary works. The client is looking for engineers who can work in a multi-disciplinary team, responsible for the delivery of civil and structural analysis, calculations, reports and specifications and also candidates that will be able to communicate designs effectively to the BIM teams within the project. Candidates will also have to be able to support and guide more junior team members and be confident, clear and decisive in front of the end clients, the role will be working with multiple clients across multiple projects. Our client is looking for two candidates that will be more focused...
IR35 Status:
Outside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Dec 27, 2025  
Lead Electrical Engineer
Lead Electrical Engineer Location: Manchester (Hybrid – typically 2–3 days in the office) Hours: 40 hours per week Sector: Water Projects: Multiple Water Frameworks Rate: £55–£65 Ltd per hour (Subject to an IR35 assessment confirming Outside IR35 status) Role Summary The Lead Electrical Engineer will be responsible for delivering the electrical engineering scope across multiple water framework projects. The role involves technical leadership, team oversight, stakeholder engagement, and ensuring all work is delivered safely, compliantly, and to high-quality standards. Key Responsibilities Leadership & Project Delivery * Lead the delivery of electrical engineering scope including schedule and MDR creation, change control, project reporting, and leading meetings. * Delegate work packages and provide technical guidance to the electrical engineering team. * Support project estimates, CTR development, and planning activities. * Ensure compliance with UK legislation, industry...
IR35 Status:
Outside IR35

CV-Library M22, Wythenshawe, Manchester Contractor
CL
Dec 26, 2025  
Principal Engineer - Temporary Works
Are you a Chartered Civil or Structural Engineer with proven experience in Temporary Works Design? Can you demonstrate leadership in supervising and approving complex engineering designs within major infrastructure projects? What excites you most about working remotely on technically challenging projects that shape the future of UK infrastructure? The Opportunity Are you ready to play a key role in delivering complex engineering solutions for major infrastructure projects? We’re expanding our team and seeking a Principal Engineer to join a leading organisation working on high-profile projects across the UK and overseas. This is an Outside IR35 contract offering remote working flexibility, giving you the freedom to work from home while contributing to technically challenging projects. Your duties and responsibilities will be: * Act as Principal Engineer, preparing design documentation as requested by Lead Engineers. * Supervise, prepare, check, and approve design work in...
IR35 Status:
Outside IR35

CV-Library M22, Wythenshawe, Manchester Contractor
CL
Dec 26, 2025  
Senior Civil Engineer - Temporary Works
Do you have Chartered Engineer status (ICE or IStructE) and at least 5 years’ experience in Temporary Works design? Can you confidently lead and communicate complex civil and structural designs to BIM teams and clients? The Opportunity Are you an experienced Civil or Structural Engineer looking for a high-impact contract role? We’re seeking a Senior C&S Temporary Works Engineer to join a multi-disciplinary team delivering complex civil and structural designs for major infrastructure projects. This is an Outside IR35 contract with remote working flexibility, giving you the freedom to work from home while contributing to nationally significant projects. Your duties and responsibilities will be: * Deliver civil and structural analysis, calculations, reports, and specifications. * Communicate designs effectively to BIM teams and collaborate with other disciplines and construction teams. * Attend occasional site visits, design reviews, and client meetings. * Support and...
IR35 Status:
Outside IR35

CV-Library M22, Wythenshawe, Manchester Contractor
CL
Nov 02, 2025  
Mechanical Handling Engineer (temp)
Mechanical Handling Engineer Plymouth – 3 days WFH circa £57.5 per hour LTD (Outside IR35) Virtual interview Mon–Fri   Certain Advantage is partnering with a key client to recruit a Mechanical Handling Engineer. You’ll support mechanical handling and building services projects across nuclear and non-nuclear facilities, ensuring safe, compliant, and efficient operation of cranes, lifting equipment, and maintenance assets.   What will you be doing? Support the Mechanical Engineering Lead with design, maintenance, and modification of mechanical handling systems. Scope and deliver mechanical designs and upgrades across the full project lifecycle. Maintain technical documentation, drawings, and compliance records. Collaborate across disciplines during installation, commissioning, and testing phases. Provide technical input to risk assessments and progress reports.  A couple of things you should know: Degree-qualified in Mechanical Engineering (Master’s or CEng preferred). 3+...
IR35 Status:
Outside IR35

CV-Library Crewton, Derby DE24, UK Contractor
CL
Oct 25, 2025  
Mechanical Design Engineer
Mechanical Design Engineers (Outside of IR35) Certain Advantage is hiring for Mechanical Design Engineers based in the Huddersfield area. This role is on a contract basis and is hybrid-based. The Company We’re working with an engineering company specialising in solving complex engineering challenges across industries—from Power Generation, Rail and more. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for Mechanical Design Engineers—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be leading a small, experienced, and collaborative team, and be responsible for: Detailed design Material selection, hand calculation, rotor dynamics Conceptual design, 3D and 2D modelling BOM and gear data generation Concession/Non-conformance assessment and resolutionThe Individual We’re looking for people who can show: Structural design practices and methodologies...
IR35 Status:
Outside IR35

CV-Library Crewton, Derby DE24, UK Contractor
CL
Dec 26, 2025  
Electrician
Electrical Engineer –  Long term - Sub-Contract Work  Contract: 6-month rolling Rate: £280 per day (Outside IR35) Pay: Weekly pay every Friday Overtime: Not available V7 are looking to engage qualified and experienced electricians to support a long-term contract delivering ventilation installation and maintenance works across social housing properties. The role focuses on ensuring homes remain safe, compliant, and energy-efficient, while maintaining a professional and respectful approach with tenants. You’ll work alongside schedulers and management, completing planned and reactive works and recording all job information through a PDA. As this is a customer-facing role, strong communication and a high standard of workmanship are essential. Role Responsibilities • Carry out electrical repairs and maintenance within social housing properties • Install, maintain, and fault-find domestic ventilation systems • Communicate professionally with residents • Work collaboratively...
IR35 Status:
Outside IR35

CV-Library Stoke-on-Trent, UK Contractor
CL
Dec 26, 2025  
Electrician
Electrical Engineer –  Long term - Sub-Contract Work  Contract: 6-month rolling Rate: £280 per day (Outside IR35) Pay: Weekly pay every Friday Overtime: Not available V7 are looking to engage qualified and experienced electricians to support a long-term contract delivering ventilation installation and maintenance works across social housing properties. The role focuses on ensuring homes remain safe, compliant, and energy-efficient, while maintaining a professional and respectful approach with tenants. You’ll work alongside schedulers and management, completing planned and reactive works and recording all job information through a PDA. As this is a customer-facing role, strong communication and a high standard of workmanship are essential. Role Responsibilities • Carry out electrical repairs and maintenance within social housing properties • Install, maintain, and fault-find domestic ventilation systems • Communicate professionally with residents • Work collaboratively...
IR35 Status:
Outside IR35

CV-Library Stoke-on-Trent, UK Contractor
CL
Dec 28, 2025  
HGV Technician
HGV Technician / HGV Engineer / HGV Fitter / HGV Mechanic / HGV Contractor Location: Manchester / Warrington Rate: £32.00 per hour Shift: 4 on 4 off / Night Shifts 6pm - 6am Immediate Start Available - Ongoing Work Our client is a specialist, reliable and reputable Commercial Vehicle Company based in Manchester/Warrington. They are seeking a passionate and dedicated HGV Technician to complete an on-going contract / LTD position. This contract position is also open to limited company contractors working outside IR35. As a HGV Technician / HGV Mechanic / HGV Fitter you must hold the following: * NVQ / City and Guilds – Level 3 * Minimum of 5 years working on commercial vehicles * Experience working in a fast paced and demanding customer environment * The ability to organise work on own initiative and work under pressure * Class 1 licence – Preferable not essential Benefits & Package * Great Hourly Rates * Weekly Pay - Every Friday * Limited...
IR35 Status:
Outside IR35

CV-Library WA3, Wigshaw, Warrington Contractor
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