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Outside IR35 Contractor Hatfield

90 jobs found in Hatfield

CL
Dec 21, 2025  
Civils Estimator
Senior Estimator (Civils) Welwyn Garden City (Hybrid) 6 month contract Outside IR35 As a Senior Estimator, you will be responsible for preparing accurate and timely estimates for rail civils projects and frameworks, as well as producing and submitting quotations, bids and tenders to meet the business requirements. You will be responsible for pricing and developing bids for clients and Tier 1 Subcontractors by producing robust tender estimates. You will lead the development of client tender information into a comprehensive price for tender submission. Duties and responsibilities As the Senior Estimator your duties and responsibilities will be: Lead estimates * Undertake estimates in accordance with Company procedures * Lead team of estimators for larger tenders, mentoring and developing junior estimators * Identify opportunity and risk during tender process * Liaise with the business unit, Bid Manager and Planner to agree methodology and principles * Maintain...
IR35 Status:
Outside IR35

CV-Library Welwyn Garden City, Hertfordshire Contractor
CL
Dec 21, 2025  
Non-clinical Scientific Writer
CK Group are recruiting for a Non-clinical Scientific Writer to join a company in the pharmaceutical industry on a contract basis for 12 months.  Salary: £55.96 - £67.16 per hour PAYE or £75-90 per hour Ltd/Umbrella (outside IR35)Regulatory Scientific writer role: You will manage the preparation, review, and submission of nonclinical summary documents for both early development and marketing applications You will work with regulatory and scientific functions to ensure comprehensive and accurate nonclinical dossiers are being submitted to HAs. Working closely with Nonclinical Project Leaders and Scientists in composing regulatory submission documents, study reports and other research-related documents You will develop and maintain processes, tools, and guidelines enabling high-quality document productionYour Background: You hold a university degree in a life science. You have several years of working experience in scientific writing and editing in a nonclinical, regulatory...
IR35 Status:
Outside IR35

CV-Library Welwyn Garden City, UK Contractor
CL
Dec 21, 2025  
Medical Devices Clinical Safety
CK Group are recruiting for a Medical Devices Clinical Safety to join a company in the pharmaceutical industry on a contract basis for 6 months. Salary: Up to £33.58 per hour PAYE, or to £45 per hour Ltd/Umbrella (outside IR35) Medical Devices Clinical Safety Role: The primary responsibility of this role is to support clinical investigations of MDs by developing and providing safety input into core MD clinical investigation documents, including the Clinical Investigation Plan (CIP/Protocol), Investigator’s Brochure (IB), and Reference Safety Information (RSI). The role holder is expected independently and strategically to lead the development of safety deliverables for MD clinical investigations. The role holder will provide MD safety expertise and support across all safety-related aspects of medical devices. The individual must be able to collaborate effectively within multifunctional and multicultural teams and is expected to work independently, demonstrating strong...
IR35 Status:
Outside IR35

CV-Library Welwyn, UK Contractor
CL
Dec 21, 2025  
Meter Operative
Meter Operative - Smart Metering Salary: £39,000-£41,000 + £3,000 annual bonus Hours: Mon-Fri, 8:00am-5:00pm (30 min lunch) Role: We?re looking for Meter Operatives to join a leading smart metering contract across the North & Midlands. Depending on the location, you?ll install and maintain Single Fuel (electric-only) or Dual Three (dual-fuel, including gas and three-phase electricity) meters. You?ll travel to domestic properties, carry out safety checks, install or exchange meters, test equipment, and record work accurately. Requirements Eligible to work in the UK Relevant qualifications: EMI for Single Fuel, Gas Safe + dual-fuel accreditation for Dual Three Previous experience in meter installation or similar field work Reliable, punctual, and customer-focused Full UK driving license Benefits: Company-provided van, tools, uniform, and mobile phone 22 days holiday + Bank Holidays Structured, KPI-driven work with optional weekend pay Disclaimer: This vacancy is...
IR35 Status:
Outside IR35

CV-Library Watford, Hertfordshire Contractor
CL
Dec 24, 2025  
Audio Visual Installation Engineer
Field-Based Audio Visual (AV) Installation Engineer (Contract – Outside IR35) Location: UK & Europe (onsite 100% – extensive travel) Contract: 6 months (immediate start) Rate: £200-£225/day (Outside IR35) Expenses: All travel and accommodation covered About the Role We’re seeking an experienced Field-Based Audio Visual (AV) Installation Engineer to join a leading technology integration team for an immediate start. This is a hands-on, site-based role covering the UK and Europe - installing, commissioning, and supporting complex AV systems in corporate environments. You’ll be working with cutting-edge collaboration and conferencing technologies including Biamp, Crestron, Q-SYS, and Microsoft/Zoom Room solutions. The ideal candidate thrives in fast-paced project delivery, is confident working independently on-site, and brings deep technical and installation expertise. Audio Visual (AV) Installation Engineer Key Responsibilities Onsite installation, configuration, and...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Dec 21, 2025  
Software Developer (Python & Django)
Software Developer (Python/Django) Hybrid – Onsite 2 Days/Week (UK) Must Have: Live & Active Security Clearance From Day One Start: January Outside IR35 | Public Sector We’re partnering with a public sector organisation to find a talented Software Developer to join their team from January. This role is ideal for someone who enjoys enhancing established systems, collaborating within a supportive engineering environment, and delivering steady, thoughtful improvements to a widely used platform. Software Developer – What You’ll Be Working On Enhancing and maintaining a server-side application built with Python/Django Performing database work including data loads, optimisation, and schema changes using PostgreSQL Supporting and refining a Celery-based background task system Collaborating with colleagues to streamline code, reduce legacy complexity, and plan future enhancements Helping introduce a more modern browser experience using JavaScript where relevant Software...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Dec 20, 2025  
Dayforce Reporting Analyst
Lawrence Harvey are currently supporting a global customer that are mid-way through their Dayforce implementation journey. Over the next 24 months, they will be deploying the full Dayforce suite, with an immediate focus on Core HR and its associated modules.  To support this initiative, they are seeking a Dayforce Data Analyst who can extract and analyse data from the system, generate meaningful reports, and help ensure that the solution is configured in alignment with business requirements. This is an initial short term contract for 1 month with potential to extend or convert to a Permanent role, paying £330 per day Outside IR35 and is fully remote. Start date ASAP in December. Experience: Proven experience extracting, analysing, and validating data within Dayforce. Strong ability to generate clear, actionable reports to support system configuration and decision-making. Hands-on experience working with Core HR and related Dayforce modules. Demonstrated capability to...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Dec 19, 2025  
Interim FP&A Manager (Abacum system experience essential)
Please note Abacum system experience is mandatory for this role. Please only apply if you have used Abacum before A PE-backed, high-growth fintech is gearing up for a major acquisition and needs an experienced Interim FP&A professional to support the team through this pivotal period. Reporting directly to the Head of FP&A, you’ll be joining at a really exciting time - making an immediate impact on the FP&A function while gaining valuable exposure to a major acquisition. Why join? Step in at a high-impact moment as the business completes a major acquisition Work directly with an excellent, highly regarded Head of FP&A Competitive day rate: between £400 - £600 per day outside IR35 (depending on experience) 6-month contract Immediate start – can possibly wait up to 1 month Hybrid working
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Dec 01, 2025  
Mechanical Project Manager – Commercial Fit Out
Mechanical Project Manager – Commercial Fit Out £400/day - Long-Term Contract London We are working with one of the top 30 UK MEP subcontractors to appoint an experienced Mechanical Project Manager for a high-profile commercial fit out project in Central London. This is a long-term contract opportunity, offering stability, a dynamic project environment, and a competitive rate of £400 per day. The Role: You will take full responsibility for the mechanical package, leading the delivery from pre-construction through to completion. This is a client-facing role requiring strong technical knowledge, excellent coordination skills, and a proactive approach to managing programme and quality. Key Responsibilities: * Manage all aspects of mechanical services on-site, including HVAC, plumbing, and public health * Coordinate with internal teams, subcontractors, suppliers, and main contractors * Ensure works are delivered on time, within budget, and to required quality standards * Lead...
IR35 Status:
Outside IR35

CV-Library Camden, Greater London Contractor
CL
Dec 13, 2025  
Fire Alarm Engineer
Service Engineer – Emergency Lighting & Fire Alarms (Subcontract Role) V7 are looking for an experienced Service Engineer to carry out planned and reactive maintenance on emergency lighting systems and fire alarm systems. This is part of a long-term commercial public sector contract with loads of ongoing work and excellent opportunities for repeat subcontract roles. The work will primarily be across north London and the m25 area mainly on commercial sites. Our client is a rapidly growing national business specializing in the security and fire industry, delivering high-quality installation, service, and maintenance nationwide. The Contract * Planned preventative maintenance (PPM) and reactive repairs on emergency lighting systems and fire alarm systems. * Testing, inspection, and certification of emergency lighting in compliance with BS 5266. * Servicing and fault-finding on Protec addressable fire alarm panels as well as other addressable and conventional systems, in...
IR35 Status:
Outside IR35

CV-Library Islington, Greater London Contractor
CL
Dec 11, 2025  
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 6 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
Nov 28, 2025  
Quantity Surveyor
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.. Candidates would need to be available to start at short notice
IR35 Status:
Outside IR35

CV-Library Hackney, Greater London Contractor
CL
Dec 18, 2025  
Senior Clean Water Process Engineer
Senior Clean Water Process Engineer Location: Flexible (Epsom / London / Peterborough / Cambridge) Pay: Competitive - dependent on experience Role Overview We are seeking a Senior Clean Water Process Engineer to lead the design, optimisation, and delivery of clean water treatment processes for major infrastructure projects. You will provide technical leadership, mentor junior engineers, and ensure projects meet safety, quality, and regulatory standards. Key Responsibilities Lead process design, commissioning support, and optimisation. Prepare technical documentation, reports, and P&IDs. Mentor multidisciplinary teams and support project delivery. Ensure compliance with codes, standards, and sustainability principles. Essential Requirements Chartered Engineer (Process or Chemical/Process Engineering). Proven experience in clean water process engineering. Strong knowledge of conventional and advanced water treatment technologies. Ability to lead teams and manage...
IR35 Status:
Outside IR35

CV-Library West End, London Contractor
CL
Dec 25, 2025  
Project Manager
Our client, operating in the rail sector, is looking for a skilled Project Manager with a background in Mechanical & Electrical (M&E) and communications to join their team. This is a contract position focusing on the Network Rail Southern Framework, specifically catering to projects that fall outside IR35 regulations. Key Responsibilities: Managing M&E and communications projects within the rail sector Ensuring projects are delivered on budget and within the specified timeframe Driving health and safety standards across all project sites Creating and capitalising on new opportunities within the framework Managing and driving opportunities on frameworks to maximise potential Collaborating with internal teams and stakeholders to ensure project success Overseeing project planning, execution, and completion Maintaining thorough documentation and reporting on project progress Job Requirements: Experience as an M&E Project Manager within the rail sector Strong project...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 25, 2025  
DataBricks Data Engineer
Data Engineer (Databricks & Azure) - 3-Month Rolling Contract Rate: £400-£450 per day Location: Remote IR35 Status: Outside IR35 Duration: Initial 3 months (rolling) About the Company Join a leading Databricks Partner delivering innovative data solutions for enterprise clients. You'll work on cutting-edge projects leveraging Databricks and Azure to transform data into actionable insights. About the Role We are seeking an experienced Data Engineer with strong expertise in Databricks and Azure to join our team on a 3-month rolling contract. This is a fully remote position, offering flexibility and autonomy while working on high-impact data engineering initiatives. Key Responsibilities Design, develop, and optimize data pipelines using Databricks and Azure Data Services. Implement best practices for data ingestion, transformation, and storage. Collaborate with stakeholders to ensure data solutions meet business requirements. Monitor and troubleshoot data workflows for...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 25, 2025  
Mechanical Design Engineer
Our client is a well-established engineering firm currently seeking to recruit a mechanical engineer for a major M&E project within the London area. This is a long-term opportunity to contribute to a large-scale project. For this role the engineer will be carrying out mechnaical design based works. Details: * £375 – 400 a day Outside IR35 * Payments: Weekly * Duration: 6 Months * Start Date: ASAP What they are looking for? * Knowledge of RIBA stage 4 deliverables * Able to produce IFC documentation and Drawings * Good Construction Knowledge * Previous mechanical design experience This is a long term role where the client has an inital 16 weeks worth of work, with there likely being a further 6 months to follow. If this seems of interest, please feel free to apply or contact Adam on the details attached
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 24, 2025  
Python Developer
Contract Software Developer (Python/Django) – January Start Outside IR35 | Public Sector | Hybrid (UK, 2 Days Onsite per Week) Active Security Clearance Required A public sector organisation is seeking an experienced Python/Django Software Developer to join their team in January. This role is ideal for a developer who enjoys working with established systems, improving system stability, modernising architecture, and contributing within a collaborative engineering environment. Software Developer (Python/Django) Key Responsibilities: • Enhance and maintain a core Python/Django server-side application • Work with PostgreSQL on data loads, optimisation, and schema updates • Support and improve a Celery-based distributed task processing system • Reduce technical debt and simplify legacy components • Contribute to the introduction of modern browser-based experiences using JavaScript Software Developer (Python/Django) Essential Skills and Experience: • Strong commercial...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 24, 2025  
Project Manager (Oil & Gas)
My well established Consultancy Client is urgently recruiting for an exceptional Senior Project Manager with a strong Oil & Gas background to lead high-profile, front-office initiatives within their growing Client. This role requires a dynamic and proactive professional who can drive complex projects from initiation to completion while maintaining strong alignment with business objectives. You will be responsible for overseeing full project lifecycles, ensuring deliverables are met on time, within scope, and within budget. A high level of proficiency in Microsoft Project is essential, along with the ability to navigate and influence in a fast-paced stakeholder environment. Key Responsibilities Lead and manage complex front-office projects within the Oil & Gas sector. Develop, monitor, and maintain detailed project plans using Microsoft Project. Engage, influence, and manage relationships with senior stakeholders across multiple business units. Identify, assess, and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 24, 2025  
Electrical Designer
Electrical Designer - Contract (Outside IR35) Location: London (Full-time Office Based) Contract Type: Outside IR35 | Start Date: Immediate | Rate CIRCA £325 per day negotiable Role Overview: We are seeking an experienced Electrical Design Engineer (intermediate level) to join an M&E and Comms Contractor on a contract basis. You will be responsible for producing detailed Electrical Building Services designs using Trimble/Amtech software. Key Responsibilities: Design and develop electrical building services systems for commercial projects. Perform calculations and produce accurate documentation using Trimble/Amtech. Ensure compliance with current regulations and standards. Work collaboratively with other engineers and project teams.Essential Skills & Experience: Proven experience in Electrical Building Services design. Proficiency in Trimble/Amtech software. Strong knowledge of relevant codes and standards. Ability to work full-time in a London office.Contract...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Dec 24, 2025  
Bms Project Engineer
Location: London 💰 Day Rate: Between £(Apply online only) a day Outside IR35 - Weekly Payments 🕒 Contract Length: 6 months My client is an established engineering company in the London area, who are looking to bring on an experienced BMS Commissioning Engineer for a major project in London. This is for at least 6 months of work, however the client has other projects in the London area, bringing the potential for longer term work opportunities For this project the client is looking for an engineer who can do BMS software writing and graphics work on either Tridium or Distech systems. The work will be based on two large commerical based projects. Required Experience * Experience with the commissioning of Tridium or Distech systems * Software Writing experience * Graphics expeirence * Right to work in the UK If this role seems of interest please feel free to apply or contact Adam on the details attached. Keywords: BMS / BEMS / Building Management System / Building Energy...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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