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Contractor 36
Outside IR35 Hertford construction

36 construction jobs found in Hertford

CL
Aug 07, 2026  
Construction Manager
Role: Construction Manager – Data Centres Location: London Mint Selection are partnered with a leading organisation delivering hyperscale data centre projects across the UK and Europe and are looking to recruit an experienced Construction Manager to support the delivery of a major new data centre development in London. We are looking to speak with Construction Managers who have a proven track record of delivering large-scale mission critical or hyperscale data centre projects, with experience managing construction activities through to commissioning, integrated systems testing (IST) and project handover. Scope of Work * Lead the safe and successful delivery of a major hyperscale data centre project, ensuring works are completed on programme, within budget and to the highest quality standards. * Take responsibility for construction delivery from pre-construction through to commissioning, integrated systems testing (IST) and final handover. * Manage multidisciplinary...
IR35 Status:
Outside IR35

CV-Library London, UK 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
Aug 13, 2026  
Site Agent
Site Agent Civil Engineering & Infrastructure Outside IR35 Contract We are currently recruiting for an experienced Site Agent to support the delivery of major civil engineering and infrastructure projects. This role will see you taking responsibility for the safe, efficient, and high-quality delivery of works across a range of schemes, including earthworks, reinforced concrete structures, pipelines, drainage, utilities, and associated infrastructure. Working closely with project teams, subcontractors, and stakeholders, you will oversee day-to-day site operations, programme delivery, health and safety, quality assurance, and resource management. You will play a key role in coordinating multidisciplinary teams, managing construction activities, driving programme performance, and ensuring works are delivered in accordance with contractual, technical, and regulatory requirements. Previous experience working under NEC contracts and managing complex construction activities within...
IR35 Status:
Outside IR35

CV-Library Harlow, UK Contractor
CL
Aug 09, 2026  
Senior / Principal Civil Engineer
Job Title: Senior / Principal Civil Engineer Salary: Dependent on experience Location: St Albans (Hybrid - minimum 3 days office-based) Type: Permanent or Contract (Outside IR35 available) - Hybrid About the Role: Our client is seeking experienced Senior and Principal Civil Engineers to join a multidisciplinary design team delivering projects across the regulated water sector. These opportunities are suited to engineers with strong design experience within water and wastewater who enjoy solving complex engineering problems, developing practical solutions and contributing to the successful delivery of projects. Depending on experience, you will take ownership of technical delivery, support multidisciplinary design teams and contribute to maintaining high standards of engineering quality and compliance. Principal-level candidates will also provide technical leadership and mentoring support across the team. Working closely with senior management and project teams, you will...
IR35 Status:
Outside IR35

CV-Library Hemel Hempstead, Hertfordshire Contractor
CL
Aug 12, 2026  
Assistant Project Manager
Assistant Project Manager Location: London (Hybrid) Rate: £350 per day (Umbrella) Contract: 12 Months An exciting opportunity has arisen for an Assistant Project Manager to join a leading infrastructure programme, supporting the successful delivery of major capital projects. Working alongside experienced Project Managers, you'll help coordinate project activities, manage assigned work packages and ensure projects are delivered safely, on time and within budget. This role is ideal for someone with experience supporting engineering, construction or infrastructure projects who is looking to develop their career within a complex project environment. Key Responsibilities Support the delivery of projects and programmes from planning through to completion. Manage assigned work packages and monitor progress against project plans. Assist with project reporting, governance, scheduling, budgeting and document control. Identify and escalate project risks, issues and opportunities,...
IR35 Status:
Outside IR35

CV-Library Ilford, London Contractor
CL
Aug 09, 2026  
Mechanical Supervisor
Mechanical Supervisor - Central London £300-£350 per day (Outside IR35) | Long-Term Contract - 12 months + We are currently seeking an experienced Mechanical Supervisor to join a leading M&E contractor delivering a flagship commercial fit-out project in Central London. This is an excellent opportunity to work on a high-profile development, taking responsibility for the supervision of full mechanical building services packages, including HVAC, pipework, plant rooms and BMS installations. The successful candidate will play a key role in driving quality, safety, and programme performance throughout the project lifecycle. Key Responsibilities Supervise and coordinate all mechanical installation activities on site Oversee the delivery of full mechanical building services packages, including HVAC, pipework, plant rooms and BMS works Manage subcontractors and direct labour to ensure works are delivered safely, on programme, and to specification Monitor daily progress and...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Aug 08, 2026  
Estimator (Demolition)
Are you a Estimator from and engineering or project management background, with 3-5 years Estimating experience pricing demolition, cut & carve, and soft strip projects? Our client is an established SME Civil Engineering Contractor, specialising in Central London Soft Strip, Demolition, Structural Alterations, Cut & Carve, Temporary Works and Groundworks projects. As the ideal candidate, you will degree qualified in Civil Engineering or from a site background with an excellent understanding of demolition principles, able to price works from 1st Principles. Freelance Estimator (Demolition) roles and responsibilities: You will be responsible for pricing tenders from 1st Principles, possessing a sound knowledge of demolition, cut & carve, and soft strip techniques, outputs and resources, identification and management of Risk. You will develop and manage cost estimates that align with tender documentation and client requirements. Work with Directors and delivery team...
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 08, 2026  
Design Manager Rail Stations
Design Manager - Steelwork & Façade Packages (Rail Stations) Location: Old Oak Common (OOC), London - 3 days per week on site Rate: £475 per day (Outside IR35) Duration: Minimum 12 months, with a strong likelihood of extension Start: ASAP We are recruiting for an experienced Design Manager to support the delivery of steelwork and façade packages on one of the UK's largest rail infrastructure projects at Old Oak Common. Façade experience is the key requirement for this role. Candidates should have proven experience managing the design and delivery of façade packages on major rail station projects. If you do not have façade experience, you must have significant experience managing the design and delivery of steelwork packages on live rail station projects. This is the minimum requirement. This role requires someone who has progressed from a Civil or Structural Engineering consultancy, leading multidisciplinary design teams internally, before working closely with...
IR35 Status:
Outside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Aug 13, 2026  
Site Supervisor - Rickmansworth - Outside IR35
SUPERVISOR // RICKMANSWORTH HS2 // OUTSIDE IR35 Due to the award of a Road scheme on HS2, our client, a highly reputable Civil Engineering Contractor are looking for a Supervisor to support these works which include Construction of a Road, Kerbing, Drainage and Services works. Based from the site in Rickmansworth, daily duties will include issuing task briefs, permits to dig, site inductions, overseeing labour on site and daily diary. To be considered for this, you will hold SSSTS, CSCS and ideally First Aid and will have experience in Road projects with HS2 an advantage also. In return, a competitive day rate is on offer with CIS/Ltd accepted and comes with an immediate start and long term contract. This is a great opening and immediate need so if interested, please send a copy of your CV
IR35 Status:
Outside IR35

CV-Library Rickmansworth, Hertfordshire Contractor
CL
Aug 14, 2026  
Lead Electrical Design Engineer
Lead Electrical Design Engineer Start date: ASAP Length: 6-12 months rolling contract Contract: up to £550 per day (outside IR35) Location: South England / Greater London Turner Lovell is recruiting for a Lead Electrical Design Engineer to join one of the UK's leading power infrastructure contractors, delivering major transmission and distribution projects across a long-term electricity framework. This role would suit an experienced Electrical Design Engineer from a Primary, Protection & Control, or broader HV substation design background who enjoys taking ownership of project delivery rather than producing detailed designs day to day. Key Responsibilities Lead the electrical design delivery of a portfolio of HV substation and power infrastructure projects. Coordinate multidisciplinary engineering teams, including Electrical, Civil and Protection & Control designers. Act as the primary technical point of contact with clients throughout the project lifecycle. Review...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
Architect
An exciting opportunity has arisen for an experienced Architect to join a busy architectural practice delivering a range of technically challenging projects across the UK. This Architect role is ideal for someone with strong Stage 4 experience and excellent Revit skills who enjoys producing detailed technical design packages. You'll initially support the delivery of a major data centre project while also contributing to a diverse portfolio including restaurants, spas and CAT B commercial fit-outs. The successful Architect will work closely with the wider design team, playing a key role in delivering high-quality technical information across multiple live projects. The Role As an Architect, you'll be responsible for: Producing detailed Stage 4 technical design packages using Revit Supporting the delivery of a major data centre development Preparing construction drawings and technical documentation Coordinating architectural designs with consultants and multidisciplinary teams...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
ESEL Installer
ESEL Installer (Nationwide - Night Shifts) We are looking for reliable and hardworking ESEL Installers to join our team delivering retail and supermarket installation projects across the UK. This hands-on role involves removing existing shelf-edge pricing systems, installing new shelf rails, and fitting Electronic Shelf Labels (ESELs) accurately and efficiently. Working predominantly night shifts, you'll be part of a team ensuring projects are completed to a high standard and within agreed timescales. Key Responsibilities Remove existing shelf-edge pricing systems. Install new shelf rail solutions and electronic shelf labels. Ensure all work is completed accurately and to quality standards. Identify and report any damaged shelving, rails, or labels. Follow health and safety procedures at all times. Work as part of a team to meet project deadlines. What We're Looking For Comfortable with physical work. Excellent attention to detail. Reliable, punctual, and able to work night...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 12, 2026  
M&E Quantity Surveyor
Quantity Surveyor (M&E) – Data Centre Project London | 6-Month Contract | Outside IR35 Considered Rate: Competitive Day Rate (DOE) Our client is a leading UK Tier 1 Main Contractor delivering a flagship hyperscale data centre project in Greater London. Due to continued project growth and increased commercial workload, they are seeking an experienced Quantity Surveyor with a Mechanical & Electrical background to join the project team on a 6-month contract basis. This is an excellent opportunity to work on one of the UK's largest live data centre developments, supporting the delivery of a major MEP package from construction through to commissioning and handover. The Role Reporting to the Senior Commercial Manager, you will provide commercial support across a range of M&E packages including electrical infrastructure, containment, cabling, HVAC, mechanical plant, fire protection systems, controls and associated specialist subcontract works. You will work closely with...
IR35 Status:
Outside IR35

CV-Library London, ENG, GB Contractor
CL
Aug 12, 2026  
Electrical Design Engineer
Electrical Design Engineer - Life Sciences London | Hybrid Working (Remote Considered) £43-£52 per hour 6-Month Contract (Temporary) | Outside IR35 An exciting opportunity has arisen for an experienced Electrical Design Engineer to join a leading Building Services consultancy delivering major life sciences and laboratory developments across the UK. This Electrical Design Engineer role is ideal for someone who enjoys designing complex electrical building servMSCices systems for highly serviced, technically demanding environments. You'll join a multidisciplinary team delivering large-scale life sciences projects from concept through to construction, working alongside some of the UK's leading contractors and design teams. The successful Electrical Design Engineer will play a key role in the delivery of high-value laboratory and research facilities, contributing to innovative engineering solutions across technically challenging developments. The Role As an Electrical Design...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 12, 2026  
Asbestos Surveyor / Analyst
Job Title: Contract Asbestos Surveyor Location: London Rate: £250 - £260 per day Determination: Outside of scope Contract Length: 6 months Working Hours: Monday to Friday, standard office hours The Role: Are you a freelance asbestos surveyor looking for a new contract opportunity? We have an exciting opening for a dedicated professional to conduct commercial surveys across major UK infrastructure projects. This is a highly unique role where no two days are ever alike, and great experience can be gained on this contract due to the diverse properties you will encounter. Your responsibilities will include: Conducting Management and Refurbishment & Demolition (R&D) surveys on various commercial properties and infrastructure sites. Accurately taking bulk samples of any suspected Asbestos Containing Materials (ACMs). Managing your own workload independently on a weekly basis to meet project deadlines. Ensuring the timely submission of survey reports and samples.About...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 12, 2026  
CSA Site Manager
Role: CSA Site Manager – Data Centres Location: London Mint Selection are partnered with a leading organisation delivering hyperscale data centre projects across the UK and Europe and are looking to recruit an experienced CSA Site Manager to support the delivery of a major new data centre development in London. We are looking to speak with CSA Site Managers who have a proven track record of delivering Civil, Structural and Architectural packages on large-scale mission critical or hyperscale data centre projects, with experience managing works through construction, commissioning support and final handover. Scope of Work * Lead the safe and successful delivery of Civil, Structural and Architectural (CSA) works on a major hyperscale data centre project, ensuring all activities are completed on programme, within budget and to the highest quality standards. * Take responsibility for the day-to-day management of CSA construction activities, coordinating multiple subcontractors...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 09, 2026  
Estimator
Job Title: Estimator (Commercial & High-End Residential) Location: Central London Day Rate: £350 - £400 per day (DOE) Contract Type: Freelance / Contract (Strictly Outside IR35) The Role: We are seeking an experienced, detail-oriented Estimator to join a premier fit-out and specialist construction contractor in Central London. This role is focused on securing high-specification projects across both the commercial and luxury residential sectors. We are looking for a professional with a stable career history (decent stints/longevity in previous roles) and a proven portfolio of accurate, competitive, and profitable tenders. About the Projects: You will be pricing prestigious schemes that demand a deep understanding of premium craftsmanship, high-end architectural finishes, and structural alterations. Projects typically involve: High-end commercial office fit-outs and landmark hospitality/leisure spaces. Luxury residential refurbishments and structural alterations....
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 09, 2026  
Senior Quantity Surveyor
Job Title: Senior Quantity Surveyor (SQS) Location: Central London Day Rate: £370 - £400 per day (DOE) Contract Type: Freelance / Contract (Outside IR35) The Role: We are seeking an experienced and commercially astute Senior Quantity Surveyor to manage the financial and contractual delivery of premium construction and interior fit-out projects across Central London. In this role, you will hold full commercial responsibility for high-specification projects, ensuring maximum profitability and strict budget control while maintaining the exceptional standards of quality our clients expect. About the Projects: You will be commercially managing complex, high-end schemes that mirror the standards of industry-leading specialist contractor. The portfolio spans: High-end commercial and luxury residential interior fit-outs. Specialist architectural carpentry and bespoke joinery packages. Full-service design and build projects acting as Principal Contractor. Complex packages...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 09, 2026  
Electrical Site Manager
Rubicon Consulting is currently recruiting for Electrical Dite Manager on a 6 Month Rolling Contract, based in London. Role Summary We are seeking an experienced Electrical Site Manager to oversee the electrical installation works on a major data centre construction project in London. You will be responsible for managing on-site electrical delivery including HV/LV distribution, UPS, generators, busbar, containment, and associated M&E services across a fast-paced, high-value programme. This is a contract engagement operating outside IR35, suited to a self-employed Ltd company contractor. Key Responsibilities • Manage day-to-day electrical installation works on site including HV/LV, UPS, generators, busbar trunking, and containment systems • Coordinate directly with the Principal Contractor, M&E subcontractors, and client-side teams to ensure programme adherence • Chair and attend site progress meetings; produce and review method statements, risk assessments, and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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