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Contractor 162
Outside IR35 Leighton Buzzard

162 jobs found in Leighton Buzzard

CL
Apr 01, 2026  
Full Stack Software Engineer
Location: Tring (Predominately onsite with flex where project allows) Duration: 4-6 month contract IR35: Outside IR35 Role detaills: Our client, a leading entity in the Defence & Security sector, is seeking a highly motivated Senior Software Engineer to join them on a contract basis - The role will encompass the design and development of a web-based control and monitoring dashboard application for an antenna terminal system. Key Responsibilities: Design and develop a web-based control and monitoring dashboard application for an antenna terminal system. Engage in the full design life cycle from specifications generation to thorough regression testing of pre-production units. Build and maintain React/Next.js frontend applications and NestJS backend services within a shared pnpm monorepo environment. Integrate user-facing components with backend services using various communication protocols (REST, WebSockets, SNMP, MQTT, etc.). Develop the GUI using a mix of off-the-shelf UI...
IR35 Status:
Outside IR35

CV-Library Tring, Hertfordshire Contractor
CL
Apr 01, 2026  
HRIS System Integration Engineer
HRIS System Integration Engineer Location: Hybrid (2 days travel to their offices in Hemel Hempstead) Contract: Outside IR35 Day rate: Up to £600 per day Duration: Initial 3 months but will most likely extend Start date: ASAP Key words: ElementSuite, Integration, API, Dataflows We are looking for a HRIS system Integration Engineer to connect our Clients core HRIS (ElementSuite) with their AI recruitment tool (Talent.AI) and their workforce management/benefits partner (Aslan). You will be responsible for designing the data flow, writing the middleware or scripts to sync these systems, and ensuring that data remains secure and accurate across all platforms. Core Responsibilities - API Development & Mapping: Use REST APIs to create seamless data synchronisation between ElementSuite, Aslan, and Talent.AI. - Workflow Automation: Automate the _Hire-to-Onboard_ journey (e.g., when a candidate is marked _Hired_ in Talent.AI, their profile is automatically created in...
IR35 Status:
Outside IR35

CV-Library Hemel Hempstead, UK Contractor
CL
Apr 01, 2026  
SAP Project Manager
Job Title: SAP Project Manager Job Type: Contract Duration: 12 Months Work Type: Hybrid Industry: FMCG Job Location: St Albans/Manchester/Southampton Rate: £550 to £600/day Ltd (Outside IR35) Profile – SAP Project Manager Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. They are currently seeking an SAP Project Manager to help prepare the business for a transition from ECC to S/4HANA. Job Role – SAP Project Manager Reporting to the Director of Application Management the SAP project Manager shall lead IT Path Clearing, Migration / Hosting work in an SAP ECC environment in preparation for the next step to upgrade to SAP S/4HANA. The Sap Project Manager shall have a deep understanding of SAP platforms, migration projects and have lead projects including SAP Private Cloud (RISE), BTP and S/4HANA. Duties – SAP Project Manager • Oversee the full lifecycle of SAP S/4 HANA implementation, from Path Clearing...
IR35 Status:
Outside IR35

CV-Library St Albans, UK Contractor
CL
Apr 03, 2026  
Systems Consultant
Systems Engineer (Requirements & Design) Outside IR35 Full time on site in Maidenhead Our client is seeking a skilled Systems Consultant for a contract position, responsible for various critical tasks associated with Systems Engineering activities, products, and artefacts. As part of this role, you will ensure the correctness and completeness of work products and solutions, executing evidence creation strategies to gain internal and external acceptance. Key Responsibilities: Carry out tasks associated with Systems Engineering activities, ensuring they align with agreed plans, processes, and scope. Ensure the correctness and completeness of work products from the requirements phase onwards, progressively gaining acceptance. Create and maintain artefacts such as strategies, plans, procedures, compliance matrices, and reports. Lead cross-discipline design and development of supporting test equipment, fixtures, and rigs through a full lifecycle approach. Ensure all safety and...
IR35 Status:
Outside IR35

CV-Library Maidenhead, Berkshire Contractor
CL
Apr 03, 2026  
Systems Consultant - Full Lifecycle
Systems Consultant Full time on site in Maidenhead Outside IR35 6 months contract Our client is seeking a skilled Systems Consultant for a contract position. The primary focus will be on executing Systems Engineering activities within the specified industry practices and ensuring adherence to all relevant processes and guidelines. This role is essential for achieving desired outcomes and maintaining the quality and security of system engineering deliverables. Key Responsibilities: Oversee tasks related to Systems Engineering activities, products, and artefacts, ensuring alignment with agreed plans and processes. Ensure work products and solutions are correct and complete from the requirements phase onwards by executing a robust evidence creation strategy. Create and maintain Systems Engineering artefacts such as Strategies, Plans, Procedures, Compliance Matrices, and Reports. Carry out responsibilities in accordance with industry practices to achieve qualification and...
IR35 Status:
Outside IR35

CV-Library Maidenhead, Berkshire Contractor
CL
Mar 07, 2026  
Project Manager - M&E
Freelance Project Manager – Data Centre Location: Slough Contract Type: Freelance / Outside IR35 (subject to assessment) Project: New-Build Data Centre (M&E Delivery) Duration: 12 months (with potential extension) Reporting to: Senior Project Manager / Operations Manager Overview TXM recuit are seeking an experienced Freelance Project Manager to support the delivery of a major new-build mission-critical data centre project in Slough for a sub contractor. The role is focused on managing Mechanical & Electrical packages, coordinating site activities, and ensuring the project is delivered safely, efficiently and to the required technical standards. This is a fast-paced, high-value engineering environment requiring strong leadership, technical capability, and excellent stakeholder communication. The ideal candidate will have a proven track record delivering M&E packages on hyperscale or enterprise data centre projects. Key Responsibilities * Oversee day-to-day...
IR35 Status:
Outside IR35

CV-Library Slough, Berkshire 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
Apr 01, 2026  
Senior MEP Quantity Surveyor
Senior MEP Quantity Surveyor (Freelance) Central London Office (3 days) | 2 days WFH Specialist MEP Contractor A leading international engineering and infrastructure group is seeking an experienced Senior MEP Quantity Surveyor to join its London-based commercial team on a freelance basis. This role offers the opportunity to play a key part in delivering major commercial and data centre projects valued up to £100m, working within a highly regarded and technically driven environment. The Role As Senior MEP Quantity Surveyor, you will take commercial ownership of a portfolio of specialist MEP packages across large-scale, complex schemes. Working closely with project teams and supply chain partners, you will ensure robust commercial management from procurement through to final account. Key Responsibilities Full commercial management of multiple specialist MEP packages Procurement, negotiation, and appointment of subcontractors Cost planning, forecasting, and reporting Contract...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Apr 01, 2026  
Senior Process Engineer
Senior Process Engineer- Addison Project, Harlow For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Role: Senior Process Engineer (Contract – Outside IR35) Location: Harlow Contract: 12 months Start Date: Spring 2026 Workscope Addison Project Plc invites...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
Apr 01, 2026  
Lead Piping Designer
Lead Piping Designer - Addison Project, Harlow For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Job Type: Contract Outside IR35 Start: Spring 2026 Location: Harlow, Essex with travel to site in Home Countries Workscpe Addison Project Plc are seeking...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
Apr 03, 2026  
Welding Inspector
Welding Inspector - Rail / Rolling Stock Location: London (Acton) Rate: £47.48 per hour Type: Contract An opportunity has arisen for an experienced Welding Inspector to support inspection and assurance activities on safety-critical rolling stock vehicles and components within a rail engineering environment. The successful candidate will carry out inspections before, during and after welding, ensuring all work complies with the relevant industry standards and quality requirements before assets return to service. Key Responsibilities Conduct welding inspections in line with the Inspection and Test Plan and relevant standards. Perform visual inspection of welds in accordance with ISO 17637. Identify defects and recommend corrective actions to maintain welding quality. Interpret engineering drawings and specifications to ensure fabrication meets required tolerances. Record and investigate non-conformances within the Quality Management System. Compile and complete quality...
IR35 Status:
Outside IR35

CV-Library Brentford, London Contractor
CL
Apr 01, 2026  
Mot Tester
CONTRACT MOT TESTER – HAMMERSMITH Position: MOT Tester Location: Hammersmith Rate: £24.00 Per Hour (Outside IR35) Hours: Monday-Friday 08:30-17:30 + Overtime available CONTRACT MOT TESTER – THE ROLE: Are you an MOT Tester looking for a new role? We have a fantastic opportunity available to work at our client’s workshop in the Hammersmith area on an ongoing contractual basis. CONTRACT MOT TESTER – ESSENTIAL SKILLS: * You must hold a valid MOT License. * Knowledge of health and safety practices in the workshop. * You must hold a UK Driving License. * Good written and verbal communication skills. * Ability to work as part of a productive team. * Excellent time management and organizational skills. Apply via this advert today and one of our experienced consultants will be in touch. Why work for Excel Resourcing? * Benefit from premium rates across the market. * Various long-term contract opportunities throughout the UK. * Flexible working when it...
IR35 Status:
Outside IR35

CV-Library Hammersmith and Fulham, Greater London Contractor
CL
Apr 03, 2026  
MOT Tester
CONTRACT MOT TESTER – READING Position: MOT Tester Location: Reading, Berkshire Rate: £24.00 Per Hour (Outside IR35) CONTRACT MOT TESTER – THE ROLE: Are you an MOT Tester looking for a new role? We have a fantastic opportunity available to work at our client’s workshop in the Reading area on an ongoing contractual basis. CONTRACT MOT TESTER – ESSENTIAL SKILLS: * You must hold a valid MOT License. * Knowledge of health and safety practices in the workshop. * You must hold a UK Driving License. * Good written and verbal communication skills. * Ability to work as part of a productive team. * Excellent time management and organizational skills. Apply via this advert today and one of our experienced consultants will be in touch. Why work for Excel Resourcing? * Benefit from premium rates across the market. * Various long-term contract opportunities throughout the UK. * Flexible working when it comes to your hours and how far you will travel. *...
IR35 Status:
Outside IR35

CV-Library RG1, Reading, Berkshire Contractor
CL
Apr 03, 2026  
Senior Civil Engineer
Senior Civil Design Engineer £38 to £55 per hr Outside IR35 Reading Hybrid working available Our client is an award winning multi disciplinary design consultancy who are based near Reading. The are looking to recruit a Civil Design Engineer who has experience of Drainage Design on a wide range of residential and commercial type projects. The right candidate will undertake tasks designing infrastructure for commercial, retail, residential and industrial sectors. Civil Engineer Job Overview • Design of infrastructure for commercial, retail, residential and industrial sectors including SUDS drainage systems, roads to adoptable & DMRB standards. • Liaison with statutory bodies such as Southern & Thames Water, Roads Department, local drainage authorities. • Attend design meetings, site meetings and carryout site inspections. • Liaise and communicate clearly in a professional manner to colleagues, clients, contractors and other designers and to offer advice and...
IR35 Status:
Outside IR35

CV-Library Reading, UK Contractor
CL
Apr 01, 2026  
MOT Tester
CONTRACT MOT TESTER – WINNERSH Position: MOT Tester Location: Winnersh (RG41) Rate: £24.00 Per Hour (Outside IR35) CONTRACT MOT TESTER – THE ROLE: Are you an MOT Tester looking for a new role? We have a fantastic opportunity available to work at our client’s workshop in the Winnersh area on an ongoing contractual basis. CONTRACT MOT TESTER – ESSENTIAL SKILLS: * You must hold a valid MOT License. * Knowledge of health and safety practices in the workshop. * You must hold a UK Driving License. * Good written and verbal communication skills. * Ability to work as part of a productive team. * Excellent time management and organizational skills. Apply via this advert today and one of our experienced consultants will be in touch. Why work for Excel Resourcing? * Benefit from premium rates across the market. * Various long-term contract opportunities throughout the UK. * Flexible working when it comes to your hours and how far you will travel. *...
IR35 Status:
Outside IR35

CV-Library RG41, Winnersh, Wokingham Contractor
CL
Apr 01, 2026  
Site Engineer
Exciting Opportunity for a Site Engineer in the Water/Wastewater Industry Role: Site Engineer Location: Kingston Bagpuize Rate: £350 per day - CIS Duration: 12 months + Sector: Sewage Treatment Works About the business Join a dynamic contractor at the forefront of the industry, currently spearheading projects within the Thames Water framework. Our commitment to excellence has opened up an exciting opportunity for a talented Site Engineer to contribute to upcoming development works linked to a large Sewage treatment works (STW) in Oxford. Key Responsibilities: ·Execute setting out tasks with precision, ensuring accuracy in levelling and traversing. ·Collaborate with the Project Manager in overseeing day-to-day site operations, including surveying and progress reporting. ·Verify plans, drawings, and setting out co-ordinations for seamless project execution. ·Utilize modern survey methods and devices, including global navigation satellite systems and data collectors....
IR35 Status:
Outside IR35

CV-Library Kingston Bagpuize, Abingdon OX13, UK 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 02, 2026  
Flood Modeller
We are working with a well-established water and infrastructure consultancy looking to strengthen their team with an experienced Flood Modeller.   This is an excellent opportunity to take ownership of complex flood risk and hydraulic modelling projects while working alongside a highly experienced technical team. You will play a key role in delivering sustainable development solutions across a range of UK infrastructure and development schemes.   This is a 6 month initial contract role that falls OUTSIDE IR35. Out client is based in London and open to remote workers.   Key responsibilities   ·Deliver hydraulic modelling and flood risk projects from concept through to construction ·Build, run and interpret river and surface water models using Flood Modeller, TUFLOW and InfoWorks ICM ·Produce and review Flood Risk Assessments and Drainage Strategies ·Develop concept and detailed designs for flood protection and surface water management schemes ·Provide technical advice to...
IR35 Status:
Outside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Apr 05, 2026  
HVDC Engineer
Job Title: HVDC Engineer Contract Type: Contract (Outside IR35) Duration: 12 Months Start Date: ASAP Location: Remote (UK / Europe considered) Overview We are currently seeking an experienced HVDC Engineer to support the design and engineering activities on a major power transmission project. This is a 12-month contract role, working outside IR35, with a remote working setup. The successful candidate will support engineering teams across HVDC system design, ensuring technical deliverables are produced to a high standard and aligned with project specifications. Key Responsibilities * Support the design and engineering activities associated with HVDC transmission systems. * Review and contribute to technical documentation, design packages, and engineering studies. * Collaborate with multidisciplinary engineering teams across electrical, control, and system design. * Provide technical input into HVDC system architecture, equipment specifications, and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 04, 2026  
Regulatory CMC Technical Writer
Regulatory CMC Technical Writer Fully Remote (UK/Europe) | Freelance Contract – Outside IR35 | Occasional International Travel About the Role We are seeking an experienced Regulatory CMC Technical Writer to support our client’s global regulatory and pharmaceutical development programmes. This is a fully remote, freelance position operating outside IR35, offering flexibility, autonomy, and the opportunity to collaborate with international teams across the life sciences sector. The ideal candidate will bring proven expertise in CMC documentation, regulatory submissions, and technical writing within pharmaceuticals, biologics, or advanced therapies. Key Responsibilities * Prepare, write, and review high‑quality CMC documentation for global regulatory submissions (e.g., Module 3, IMPD, IND, BLA, CTA). * Translate complex scientific, manufacturing, and quality information into clear, compliant regulatory content. * Ensure all documentation aligns with FDA, EMA, MHRA and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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