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Contractor 16
Outside IR35 Welwyn Garden City

16 jobs found in Welwyn Garden City

CL
Apr 12, 2026  
Senior Patient-Centered Outcomes Research Scientist
Talentmark are recruiting for a Senior Patient-Centered Outcomes Research Scientist to join a company in the pharmaceutical industry on a contract basis for 9 months. Salary: £75 – £90 per hour (Outside IR35) Senior Patient-Centered Outcomes Research Scientist Role: Develop and implement patient-centred, fit-for-purpose measurement strategies across the drug development lifecycle Collaborate with global study teams, lifecycle teams, and cross-functional stakeholders to integrate patient-focused outcomes into clinical development Support study start-up, monitoring, and close-out activities related to clinical outcome assessments (COAs) Lead or contribute to the implementation of electronic COAs (eCOA), including user acceptance testing, linguistic validation, and file specification reviews Assess and drive the development or deployment of new measurement tools to capture patient experience effectively Provide subject matter expertise in areas such as digital measurement...
IR35 Status:
Outside IR35

CV-Library Welwyn Garden City, UK Contractor
CL
Apr 11, 2026  
Site Agent - Wastewater (LTD - OUTSIDE IR35)
Randstad are recruiting for an experienced Site Agent with a background in Wastewater or Heavy Civils to work on a Water Framework project in Hertfordshire This is a long term site based contract expected to last a minimum of 12-18Months paid LTD and is deemed OUTSIDE IR35. Scope of works include earthworks, deep drainage, utilities, installation of RC structures and tanks. Previous experience working on Sewage Treatment Works and subcontractor management of multidisciplinary trades is ideal. Requirements: Degree in Civil Engineering or HND Equivalent Experience working within the Wastewater sector for a main contractor / Tier 1 Must be able to drive due to location **Thames Water Passport highly desirable. Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Apr 08, 2026  
Senior Preconstruction Project Engineer
Senior Preconstruction Project Engineer – Infrastructure Projects Location: Hertfordshire Rate: £450 - £500 per day (Outside IR35 considered) Duration: 12 months Start: ASAP A major infrastructure contractor is seeking a Senior Preconstruction Project Engineer to support the development and mobilisation of complex water and wastewater projects. This role focuses on the critical pre-construction and design phases of project delivery, ensuring schemes are properly planned, technically coordinated and commercially positioned before construction begins. The successful candidate will work closely with pre-construction teams, designers, planners and procurement specialists to develop robust target costs, risk registers and delivery strategies while ensuring design solutions are aligned with programme and buildability requirements. The Senior Preconstruction Project Engineer will play a key role in coordinating operational input during the early stages of project development....
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Apr 08, 2026  
Preconstruction Project Engineer
Preconstruction Project Engineer Location: Hertfordshire Rate: £350 - £400 (Outside IR35 considered) Duration: 12 months Start: ASAP We are seeking a Preconstruction Project Engineer to support the development and mobilisation of water and wastewater infrastructure projects within a large capital delivery programme. This role sits within the pre-construction and engineering team and focuses on ensuring projects are technically coordinated and properly planned before construction begins. The successful candidate will contribute to the early stages of project development by supporting the preparation of target costs, risk registers and delivery strategies, ensuring projects are set up for successful execution once they progress to site. Working closely with design partners, procurement teams and operational delivery teams, you will review engineering deliverables to ensure they comply with contractual, regulatory and technical requirements. You will help coordinate the...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Apr 08, 2026  
Design Coordinator
Design Coordinator – Infrastructure Projects Location: Hertfordshire Rate: £300 - £380 (Outside IR35 considered) Duration: 12 months Start: ASAP We are seeking an experienced Design Coordinator to support the delivery of civil and MEICA projects within a large capital programme. This role sits within the engineering and design management team and focuses on ensuring projects are technically coordinated and fully developed prior to construction. The successful candidate will play an important role during the pre-construction and detailed design phases, helping to ensure design deliverables, procurement requirements and delivery planning are aligned before work begins on site. Working closely with design partners, procurement teams and project delivery teams, you will review design outputs to ensure they comply with contractual, regulatory and technical requirements. You will also support the development of robust delivery plans by coordinating surveys, testing and inspections...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Apr 08, 2026  
Design Manager
Design Manager – Infrastructure Projects Location: Hertfordshire Rate: £350 - £450 per day (Outside IR35 considered) Duration: 12 months Start: ASAP We are seeking an experienced Design Manager to support the delivery of major civil engineering and MEICA infrastructure projects. This contract sits at the critical interface between pre-construction, design, procurement and project delivery. The successful candidate will play a key role in ensuring projects are fully developed from a design, procurement and delivery perspective before construction begins on site. The focus of the role is to ensure that target costs, risk registers and delivery plans are robust during the early phases of a project, while also ensuring design development supports programme certainty and commercial performance. Working closely with pre-construction teams, designers, planners, procurement specialists and operational delivery teams, you will coordinate Civil and MEICA design development across...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Apr 12, 2026  
Automation Engineer
PLC Automation Engineer Contract 6-12 months Outside IR35 c£55p/h Role Overview Our client is seeking a versatile and proactive Automation Engineer to join their team. You will oversee the technical lifecycle of critical assets—from the decommissioning and relocation of equipment at existing sites to the commissioning and integration within a new, agile, smaller-scale Oral Solid Dose (OSD) facility. This is a hands-on role requiring a practitioner comfortable reviewing, reading, and writing PLC code, while also leading the writing and execution of validation packs for new and upgraded equipment being deployed to a new building. Key Responsibilities PLC Programming & Review: Act as the hands-on technical expert responsible for reviewing, reading, and writing PLC code to ensure equipment functionality. Asset Relocation & Integration: Lead the strategic move of existing equipment from decommissioned facilities into a new OSD environment. Commissioning &...
IR35 Status:
Outside IR35

CV-Library Ware, Hertfordshire Contractor
CL
Apr 11, 2026  
Senior Sub-Contract Buyer
Senior Sub-Contract Buyer Luton 6-month Contract - Hybrid £50.00 per hour - Umbrella ARM have an exciting opportunity for a Senior Sub-contract Buyer to join a global leader in aerospace innovation. The Role: Develop and negotiate contracts for materials and sub-contracts using standard and non-standard formats. On contract delivery performance of direct suppliers. Contract management to assure compliance, promote innovation and deliver target driven outcomes to the satisfaction of the programme stakeholders. Understanding mechanisms of mitigating risk associated when entering into commercial agreements whilst considering risk / resilience within the future supply base. Ensure that the appropriate commercial protections are in place such as; effective Non-Disclosure Agreements (NDAs) / Export Licences etc. Support to the internal reporting of external spend and future spend forecasting to support customer requirements. Management of compliance and governance restrictions...
IR35 Status:
Outside IR35

CV-Library Luton, Bedfordshire Contractor
CL
Apr 08, 2026  
Temporary Works Co-ordinator
Temporary Works Coordinator - Outside IR35 Contract (6 Months, ASAP Start) Locations: Hitchin / Peterborough / Colchester Contract Type: Outside IR35 Duration: 6‑month contract Start Date: As soon as possible Role Purpose You will be responsible for the effective day‑to‑day management of site activities to ensure successful delivery of key project elements. This includes planning, coordination, resourcing, and maintaining strong communication with site teams. You will ensure all works are delivered safely, on time, within budget, and in line with all relevant standards, specifications, and regulatory requirements. Key Responsibilities Support short‑ and long‑term work planning, using production‑led techniques and planning tools to optimise onsite delivery. Manage and coordinate on‑site supervisors, engineers, operatives, and subcontractors. Oversee all Health, Safety, Environmental and wellbeing requirements, including producing and delivering RAMS, SSOW, permits, site...
IR35 Status:
Outside IR35

CV-Library Hitchin, Hertfordshire Contractor
CL
Apr 09, 2026  
Electrical Authorised Person (LV AP)
Role: Electrical Supervisor - LV AP Location: Roydon Rate: £450per day - Outside IR35/LTD Company Duration: 12 Months+/Ongoing   Sector: Water/Wastewater   The business we're working with, a Leading Contractor are looking for an Electrical AP to oversee electrical delivery works on a major clean water project near Roydon.   A great opportunity to join a contractor that have secured significant AMP7 & AMP8 contracts on the Thames Water Framework.   We are seeking an experienced Electrical Supervisor with previous LV Authorised Person (AP) experience. The role requires proven competence in carrying out and overseeing electrical isolations and ensuring works are delivered safely and in compliance with regulations. Responsibilities:   -  Act as the appointed LV Authorised Person (AP) for site electrical systems. -  Carry out and manage isolations, switching, and lock-off procedures to ensure a safe system of work. -  Issue, manage, and cancel electrical...
IR35 Status:
Outside IR35

CV-Library Roydon, UK Contractor
CL
Apr 05, 2026  
Interim Health and Safety Consultant
Interim Health and Safety Consultant - £400 - £450 per day (Outside IR35) - North West London * Are you looking for a role where you can help shape safety culture across a major London transport operation? * Do you enjoy working closely with operational teams to drive improvements in health, safety, environment and quality? * Are you motivated by the opportunity to influence change at the beginning of a transformational journey? If so, look no further… * An exciting opportunity has arisen for an Interim Health and Safety Consultant to join a leading London transport operator, supporting the development of health, safety, environmental and quality arrangements across its operations. * Reporting to the Head of Health and Safety, this is a highly operational role where you will work closely with garage teams, project stakeholders and senior leaders to drive continuous improvement, ensure legal compliance and strengthen safety culture across multiple...
IR35 Status:
Outside IR35

CV-Library Wembley, Greater London Contractor
CL
Jan 14, 2026  
Aircraft Fitters
MPI have a requirement for Aircraft Fitters to work on site in at Stansted Airport. Our client requires 4 Aircraft Fitters per day from the 12th January 2026 through to the 18th December 2026 (as with all contracts, this may be subject to change) In addition, they require a further 4 Aircraft Fitters to work opposite shifts to cover the whole roster. The Working hours are 07.00 - 19.00 Working the following shift pattern 5 on 5 off 4 on 5 off 5 on 4 off Then this cycle repeats itself from top. 5 on 5 off 4 on 5 off 5 on 4 off Rate of pay is £29.00 per hour limited. Our client has advised that as well as the shifts above, there are extra hours available each week (Overtime is not guaranteed). This contract is deemed outside of IR35 You will require your own tools as well as current Human Factors, EWIS and Fuel Tank Safety certificates. The successful candidate will be a self-motivated individual with experience working in a Base Maintenance environment Required Qualifications &...
IR35 Status:
Outside IR35

CV-Library Stansted Mountfitchet, Essex Contractor
CL
Apr 09, 2026  
Revit Mep Coordinator
Revit MEP Coordinator Kings Cross Contract - £35ph 6 months We have an urgent contract requirement to start ASAP on a large Commercial fit out project in Kings Cross working for the MEP Contractor. This will be outside IR35. The project is onsite and scheduled to last until towards the end of the year. You will be onsite 4 days per week for the first 2 months at least before it drops to 3 days per week on site The client is providing laptop & software. We cannot offer sponsorship for this role Please contact the team at 12 recruitment by submitting your CV via the links on this page
IR35 Status:
Outside IR35

CV-Library Camden, Greater London Contractor
CL
Apr 03, 2026  
Stock Condition Surveyor/DEA
Are you looking for work within the Building Surveying industry? Look no further! 1st Select are looking for an experienced Stock Condition Surveyor / Domestic Energy Assessor who would be able to carry out detailed inspections of houses and flats, both internally as well as externally. Our client is a leading Consultancy in the Surveying industry, that has won a large contract covering Hackney and we are looking for 2 Stock Condition Surveyors/DEAs to partake in this program. Responsibilities/requirements will include… Stock Condition Surveying Experience Experience with lodging EPCs HHSRS Experience Benefits for the worker Gain more experience in the building surveying industry Flexible working hours *Payment outside of IR35* This will be a 3-month contract with the possibility of leading on to additional work. If this fits your area of expertise, please contact Lucy Saphier
IR35 Status:
Outside IR35

CV-Library Hackney, Greater London Contractor
CL
Mar 21, 2026  
Quantity Surveyor Construction
Freelance Quantity Surveyor - On site Central London (Near Old Street) - Immediate start - 8+ months contract - Outside IR35. Tradeline are actively seeking a Quantity Surveyor who is able to complete an 8 month contract based on site near Old Street, Central London. You will be required to carry out a forensic review of the project costings and deliver excellent commercial skills including CVR's and Final Accounts. Reporting into a Commercial Manager and working within a team of 5, you will be involved in delivering an extensive cost management service on the project. The role would suit an experienced Quantity Surveyor who has had experience in build projects, excellent negotiation skills and working within a high pressurised environment. There will also be aspects of troubleshooting, so experience dealing with problematic construction projects would be desirable
IR35 Status:
Outside IR35

CV-Library Hackney, Greater London Contractor
CL
Apr 12, 2026  
Senior Quantity Surveyor
Senior Quantity Surveyor – New Build Residential (Main Contractor) Kenna Recruitment is working in partnership with a leading main contractor to appoint a Senior Quantity Surveyor for a major mixed-use residential development in North West London Outside IR35. This is a fantastic opportunity to join a scheme from procurement stage, offering circa 3 years of secured work on a high-profile project. The Project * New build residential towers * 180 units – affordable & build-to-rent private apartments * Mixed-use scheme including communal amenity spaces and ground floor commercial units * Gateway approved – ready to progress The Role Reporting into a Commercial Manager, you will take a leading role in the commercial delivery of the project from procurement through to completion. Key responsibilities include: * Managing subcontractor procurement and package buyout * Preparing and managing cost reports and forecasts * Leading valuations, variations, and...
IR35 Status:
Outside IR35

CV-Library HA0, Perivale, Greater London Contractor
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