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Contractor 31
Outside IR35 Welwyn Garden City construction

31 construction jobs found in Welwyn Garden City

CL
Sep 10, 2026  
Senior Construction Engineer
Senior Engineer - Construction Engineering & Assurance Location: Southwark / predominantly site-based Rate: £529 per day umbrella Contract: 6-month contract We are currently recruiting for a Senior Engineer - Construction Engineering & Assurance to support a major London Underground upgrade programme. This is a predominantly site-based role, providing construction engineering expertise across a range of civil engineering assets and ensuring works are delivered safely, to the required standards and in line with contractual requirements. Key Responsibilities Provide construction engineering and assurance input across the project lifecycle. Lead and support construction quality assurance, including surveillance, supervision and inspections. Review and manage design submissions coming into site. Provide technical input on constructability, construction methods and temporary works. Act as, or support, the NEC Supervisor where required. Ensure construction activities...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Aug 02, 2026  
Mechanical Construction Manager
My client requires a Mechanical experienced Construction Manager for a long term role (2 + Years) in Uxbridge on the delivery of a large scale infrastructure project. Paying £(Apply online only) a shift + Outside IR35 + Weekly Payments + Long Term Works (2 + years) The position will require you to assist the Project Manager managing the sub contractors deliver large scale Mechanical packages. This is a long term contract role and would suit someone who has extensive experience covering the following: * Delivery of Mechanical packages of work * Reporting into the Senior Project Manager * Forming close links with the client’s representatives and their teams at a senior level. * Attending site meetings, liaising with clients and subcontractors * Promote a positive health and safety culture across the project & workforce * Managing any changes that occur throughout the project * Can work well under pressure in a fast-paced environment * A strong...
IR35 Status:
Outside IR35

CV-Library Hillingdon, Greater London Contractor
CL
Sep 06, 2026  
Electrical Construction Manager
Electrical Construction Manager – Utility-Scale Solar Project Location: South East England Contract: 12 Months IR35 Status: Outside IR35 Rate: £500-£600 per day Sector: Renewable Energy / Utility-Scale Solar Project: Industrial / Utility-Scale Solar Development The Opportunity We are looking for an experienced Electrical Construction Manager to support the delivery of a major utility-scale solar project in the South East of England. Working on behalf of the project delivery team, you will take responsibility for the electrical construction package throughout the build phase, overseeing site activities from installation through to testing, commissioning and handover. This is a 12-month contract operating outside IR35 and would suit an experienced Electrical Construction Manager with a strong background in utility-scale solar, renewable energy, power generation or major electrical infrastructure projects. Key Responsibilities Manage and coordinate all electrical...
IR35 Status:
Outside IR35

CV-Library Cambridge, ENG, GB Contractor
CL
Sep 10, 2026  
Associate Asbestos Surveyor
Position: Associate Asbestos Surveyor (Residential Projects) Location: Hemel Hempsted, Aylesbury, St Albans, NO travel into London!! Contract: Long-Term, Ongoing Rate: £240 - £280 per day with uncapped OTE (Outside IR35) Expenses: Parking and postage costs covered An excellent long-term contract opportunity is available for an experienced Associate Asbestos Surveyor to join a leading UKAS accredited environmental consultancy. This role offers the chance to work on a stable portfolio of residential projects concentrated exclusively in the HP postcode areas and the surrounding Home Counties. The geographically focused nature of the work ensures that your travel time will be significantly minimised, allowing you to focus on the surveying tasks at hand. And most importantly this is a contract where you will NOT be travelling into London. Your Responsibilities Will Include: Conducting Management and Refurbishment & Demolition (R&D) surveys on residential properties using...
IR35 Status:
Outside IR35

CV-Library Hemel Hempstead, Hertfordshire Contractor
CL
Sep 04, 2026  
Senior Quantity Surveyor
Senior Quantity Surveyor – Main Contractor (New Build Residential) – Wood Green Salary/Package: £450 – £500 per day Ltd Co (Outside IR35) O’Neill and Brennan are currently working with a main contractor who are looking to appoint an experienced Senior Quantity Surveyor to join their commercial team, working on a 100+ unit new build residential development in the Wood Green area. This is an excellent opportunity for a time served freelance Senior Quantity Surveyor who has previously taken full commercial responsibility for projects valued at £30m+ and is comfortable operating in both structured and less structured environments. The ideal candidate will have experience working for main contractors of varying sizes, some exposure to new build residential projects, and the ability to operate as a self-starter on challenging or complex projects. Role Overview Title: Senior Quantity Surveyor Project: 100+ Unit New Build Residential Development Location: Wood Green Rate: £450 –...
IR35 Status:
Outside IR35

CV-Library Wood Green, London, UK Contractor
CL
Sep 11, 2026  
Electrical Inspector - IPC
Electrical Inspector - IPC QA / Test & Inspection Location: Ampthill, Bedfordshire Contract: Fixed Term - 12 Month FTC Salary: £40,000 - £45,000 37.5h, 4 day working week Monday to Thursday About the Role Responsible for the inspection and electrical testing of in-process and completed products, including cable assemblies, wire harnesses, electronic units, and electromechanical assemblies. Ensures products meet customer specifications, engineering drawings, quality standards, and internal procedures through visual inspection, measurement, and functional testing. Key Responsibilities Perform visual and electrical inspections to verify product conformity. Conduct tests including continuity, bonding, and resistance measurements. Use inspection and test equipment such as Digital Multimeters, ohmmeters, gauges, and measuring tools. Interpret engineering drawings, specifications, work instructions, and inspection checklists. Identify, document, and manage non-conforming...
IR35 Status:
Outside IR35

CV-Library Ampthill, Bedfordshire Contractor
CL
Sep 04, 2026  
Senior M&E Quantity Suryveor
Senior M&E Quantity Surveyor - Contract Central London £500-£550 per day (Outside IR35) Tier 1 MEP Contractor Long-Term Contract The Opportunity We are working with a major Tier 1 MEP contractor that is looking to strengthen its commercial team with an experienced Senior M&E Quantity Surveyor. The contractor has a significant workload across London, delivering complex building services packages on major commercial, data centre, healthcare and education projects. This position would suit a commercially strong M&E Quantity Surveyor who is comfortable taking ownership of sizeable packages and working closely with both the project delivery team and senior commercial management. The role is offered on a long-term contract basis at £500-£550 per day Outside IR35. The Role You will form a key part of the project commercial team, taking responsibility for the financial and contractual management of major mechanical and electrical packages. The position will involve...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Jun 29, 2026  
Senior Electrical Design Engineer
Great opportunity to work with this leading international Consulting Engineers who are looking to bring on board a driven and experienced Senior Electrical Design Engineer, Outside IR35, to be an active part of a specialist design team consultancy to work on a variety of Hyper scale Data Centre projects. Key Responsibilities:- Create electrical design drawings and specs for Data Centre Projects. Ensure designs meet all standards and regulations. Support sustainable design and use of innovative tech Work closely with colleagues, clients, architects, and contractors.. Manage project deadlines, budgets, and deliverables. About you: You should hold Degree (or historic equivalent) in Electrical Engineering or related field.- Should have extensive experience in Mission Critical design and building services design, specifically on data centres.- Sound knowledge of British Standards and building regulations.- Strong communication skills.-. Your expert recruitment consultant is...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Aug 21, 2026  
Senior Electrical Design Engineer
Major London Building Services Design and Build Contractor are recruiting for an experienced Senior Electrical Design Engineer on a Contract Basis as a result of sustained increase in project workload. Interesting and varied Mix of Electrical Design work on Cat. A and B Commercial Fitout Projects, Residential and mixed use scheme design. Excellent Salary plus substantial additional benefits package and bonus system. Very good career potential. Office Based, London Central. You must live within easy travelling distance of Central London for this position. Rate negotiable. Experience of Electrical Design on London Projects, especially fitout and residential essential. Outside IR35 Potential if Ltd. Status
IR35 Status:
Outside IR35

CV-Library EC3A, Lime Street, Greater London Contractor
CL
Sep 10, 2026  
Contract Asbestos Surveyor
Job: Contract Asbestos Surveyor, Location: North London, Rate: £250 - £295 p/d + Expenses IR35 Determination: Outside scope Expenses Covered: Postage, parking, ULEZ, TFL Associate Asbestos surveyors are required for an exciting role at a UKAS accredited environmental consultancy. The company has a strong portfolio of residential work centred exclusively in and around the North London area. For that reason also, as a surveyor you can be sure that travel-time between sites and at the start and end of a shift will be kept to a minimum. The role will involve but will not be limited to: * Management and R&D surveys using a PDA. * Sample taking any suspected ACM's * managing own workload on a weekly basis * Submitting reports and samples on a weekly basis About You: You will be a P402 qualified asbestos surveyor who has a demonstrable post qualification track record of experience. You will nearly exclusively be working around the North London region, but must be...
IR35 Status:
Outside IR35

CV-Library North London, London Contractor
CL
Sep 10, 2026  
MRICS Building Surveyor
We have an excellent opportunity for a chartered Building Surveyor to work on Disrepair projects primarily in London & the South East.. This is self-employed work outside of IR35 and is paid per report. Undertake comprehensive building surveys of disrepair claims and the production of detailed expert witness reports for use in the legal process. Self-employed work, so this provides the opportunity for part-time or full-time. It is essential that candidates are MRICS qualified with 3 years + PQE. Residential experience is also essential for this work. This is an excellent opportunity, which has fantastic earning potential and provides the opportunity for long-term work and flexible work
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Sep 09, 2026  
Freelance Architects & Technologists
Job Title: Freelance Architectural Specialist (Architect or Architectural Technologist) Location: Hybrid / Remote (UK-based) Engagement Type: Freelance / Contract (Inside/Outside IR35 dependant on project) Duration: Ongoing contract / Project-based Role Overview We are seeking an experienced Freelance Architect or Architectural Technologist with strong proficiency in Revit and/or AutoCAD to support our client studios on upcoming project deliverables. You will plug directly into design teams to assist with production packages, technical detailing, and planning submissions across various project stages. Key Responsibilities Produce accurate 2D CAD drawings and 3D Revit models across RIBA Stages 2-5. Deliver technical detailing, construction drawing packages, and specifications. Coordinate with structural, MEP, and external engineering consultants to resolve design clashes. Assist with planning applications, building regulations submissions, and tender packages. Ensure all...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Sep 08, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Contract We have a fantastic contract opportunity for an experienced Tridium BMS Commissioning Engineer to join an exciting and prestigious project in London. On offer is an initial 6 month contract (with the potential to extend), c£40 - £48 per hour, and the opportunity to work on one of London’s most interesting new projects in central London The BMS Commissioning Engineer position:- As a BMS Commissioning Engineer, you will have fantastic experience and knowledge of commissioning Building Management Systems, in particular Tridium Niagara.  You will be required to perform software modifications and full commissioning. The project is in central London and is a very prestigious refurbishment of a historical building. The project is a mixed use development incorporating a hotel, high end luxury residences, and shops and will be using state of the art new smart building technology. Key skills of the BMS Commissioning Engineer:- Exceptional technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Sep 06, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Contract: 6 Months | Outside IR35 Working: Monday–Friday | 3 Days Office-Based Sector: Rail, Utilities & Airports Employer: Principal Contractor The Role: We are looking for an experienced Mechanical Design Engineer to join a Principal Contractor delivering major infrastructure projects across the Rail, Utilities and Airport sectors. The role will focus on delivering detailed mechanical building services designs, with a strong emphasis on HVAC systems. You will work as part of a multidisciplinary design team, supporting projects from detailed design through to construction. Key Responsibilities: * Deliver detailed mechanical and HVAC designs. * Produce drawings, layouts, specifications and technical documentation. * Carry out design calculations and equipment sizing. * Coordinate designs with multidisciplinary teams. * Ensure designs meet relevant standards and client requirements. * Resolve technical queries and support design...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 15, 2026  
Electrical Design Engineer
Urgent immediate requirement for a Contract Senior Electrical Design Engineer to join this Construction Consultant helping initially take a stage two design to stage three. Working with a European Developer this is a great remote opportunity as its likely to go to stage four etc. Working in the thriving data centre space this is a great chance to increase your skills or gain exposure to the DC space You must have sound demonstrable Electrical Building services experience and able to start at short notice The role is outside IR35 Your expert recruitment consultant is Trevor Parsons, call today on (phone number removed) or email (url removed) Eden Brown is committed to equality in the workplace and is an equal opportunity employer. Eden Brown is acting as an Employment Business in relation to this vacancy
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jun 28, 2026  
Senior HVAC Design Engineer
Data Centres are crucial components of today's infrastructure, supporting everything from business to public services. The Opportunity Join our international and multidisciplinary team of passionate design engineers and help us create high-quality, sustainable, and innovative data centre structures. You will work on medium to large-scale mission-critical projects, covering all stages of design - from concept to construction supervision and handover. As a Senior Mechanical Engineer your role will be as part of an interdisciplinary team lead the design of mechanical systems (Building servies and cooling) on medium to large-scale Mission Critical projects through all design stages from Concept to Construction Supervision and Hand-Over Lead the preparation and review of design deliverables Lead projects and work closely with our data centre clients to deliver quality work to meet their specific needs Present technical content for review by technical and non-technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jun 17, 2026  
Senior Electrical Design Engineer
Working with this busy engineering solutions provider who have a strong order book with schemes across the TFL estate - they are looking for an Electrical Design Engineer to join there multi-disciplinary design team Your role will involve: - Creating LV electrical designs for station work, including lighting and power systems. - Problem-solving to integrate new designs with legacy infrastructure. - Working closely with the wider design and CAD teams. The position is ideally suited for someone who: - Is an experienced practically minded electrical design engineer - Understands the practical challenges of electrical installation and buildability. - Can problem-solve on the spot when faced with non-standard site issues. You should have experience in RAIL/ LU (TFL) Standards Role is outside IR35 Your expert recruitment consultant is Trevor Parsons, call today on (phone number removed) or email (url removed) Eden Brown is committed to equality in the...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 16, 2026  
Senior Electrical Design Engineer
An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on an contract basis outside IR35. This hybrid role will involve working as part of a multidisciplinary building services engineering team, supporting the delivery of electrical design solutions across a range of building projects. The successful Electrical Design Engineer will contribute to the development of electrical building services designs, technical documentation and coordinated BIM models. This role is based in the London office with hybrid working available, offering the chance to work on high-quality building services projects alongside experienced engineers and consultants. Key Responsibilities · As an Electrical Design Engineer, your responsibilities will include: · Producing electrical building services designs for a variety of building projects · Developing electrical schematics, layouts and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Sep 11, 2026  
General Foreman-Aylesbury-Outside IR35
Due to an increase in workload within their HS2 framework, our client a top Regional Civil Engineering Contractor have the requirement for a General Foreman to support projects that include Drainage, Structures, Roads and Utility Diversions. Based from sites in and around Aylesbury, daily duties will include Site Inductions, Toolbox Talks, Issuing Task Briefs, Walkrounds and Daily reporting. To be considered for this you will hold SMSTS, CSCS, First Aid and other industry certs to your name and you will have solid experience in the above areas of work with HS2 exposure also ideal. In return, a top day rate is on offer which is Outside IR35 and comes with an immediate start and long term contract for the right individual. This is an excellent opening with a top team and great people so if interested, please send a copy of your CV to Dave Rowe by email or call Dave on (phone number removed) for further information
IR35 Status:
Outside IR35

CV-Library Aylesbury, Buckinghamshire Contractor
CL
Sep 08, 2026  
Health And Safety Advisor - Aylesbury - Outside IR35
We are currently looking for an experienced Health & Safety Advisor to work on an HS2 project, supporting the site team in maintaining the highest standards of health, safety and environmental compliance. The role will involve carrying out regular site inspections and audits, advising site management and subcontractors on health and safety requirements, reviewing RAMS, supporting incident investigations and ensuring compliance with HS2 standards and relevant legislation. You will also be responsible for identifying potential risks, implementing corrective actions and promoting a strong safety culture across the project. The ideal candidate will have previous experience working in major civil engineering/infrastructure projects, ideally with HS2 or similar Tier 1 environments, and hold relevant health and safety qualifications such as NEBOSH and/or NCRQ. Strong knowledge of CDM, RAMS, audits and site-based health and safety procedures is essential. This is an excellent...
IR35 Status:
Outside IR35

CV-Library Aylesbury, Buckinghamshire Contractor
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