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Contractor 63
Outside IR35 Barnet

63 jobs found in Barnet

CL
May 01, 2026  
Senior EC&I Engineer
Senior EC&I Engineer | North West (Hybrid Working) | up to £58ph | 4 day working week | Outside IR35 The Opportunity Are you at the point where you want more influence over engineering decisions, not just another delivery or design‑only contract? This is a senior EC&I contract working on complex, safety‑critical programmes within highly regulated environments such as defence and nuclear. The role operates at consultant level, giving real influence over technical decisions rather than being limited to a pure design function. You’d have ownership across the full lifecycle — providing technical leadership, assurance, integration support and problem‑solving through delivery — on an Outside IR35 basis with hybrid working and long‑term programme stability. It’s an opportunity to shape standards and outcomes, working closely with clients and multidisciplinary teams, rather than just executing instructions. What we’re looking for: Strong background in EC&I, control...
IR35 Status:
Outside IR35

CV-Library 42 Lyndale Ave, London NW2 2QA, UK Contractor
CL
Apr 30, 2026  
Interim Maintenance manager
Maintenance Manager (Interim) £450 - £500.00 daily rate plus expenses  (Outside IR35) 4 on 4 off DAYS Location: Commutable from Wembley, London The Profile We are seeking an experienced Maintenance Manager to ensure the smooth and efficient running of the Engineering Department on an interim basis. The successful candidate will have: This is a hands on engineering role ·A recognised engineering apprenticeship or relevant engineering qualification ·Proven experience within food manufacturing or a process-driven production environment ·Strong knowledge of Planned Preventative Maintenance (PPM) systems and implementation ·Experience managing quality standards and reducing waste ·A proactive, hands-on leadership style with a focus on continuous improvement ·Strong organisational and problem-solving skills The Role Reporting to the Head of Engineering, the Interim Maintenance Manager will be responsible for: ·Providing strong leadership and man-management to a small team...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
Apr 16, 2026  
Senior Quantity Surveyor
Pinnacle are looking to speak to Senior Quantity Surveyors, with a strong background in rail infrastructure, specifically across civil engineering and signalling projects. This is an excellent opportunity for a commercially astute professional to support high-profile rail programmes, ensuring robust cost control, contract management, and project delivery. Key Responsibilities * Lead all commercial and contractual aspects of rail projects, from pre-contract through to final account * Prepare, review, and manage cost plans, budgets, and forecasts * Administer contracts (e.g. NEC forms) including compensation events and variations * Conduct value engineering and cost optimisation exercises * Manage subcontractor procurement, payments, and final accounts * Provide accurate and timely commercial reporting * Support project teams in risk management and mitigation strategies * Liaise with clients, stakeholders, and multidisciplinary teams Requirements *...
IR35 Status:
Outside IR35

CV-Library Hatfield, Hertfordshire Contractor
CL
May 02, 2026  
Revit Technician (M&E)
Our client is a well-established engineering firm currently seeking to recruit several Revit Engineers/Technicians for a major M&E project within the North London area This is a long-term opportunity to contribute to a large-scale rail project. They are looking to bring on board around eight Revit Engineers/Technicians to support the ongoing works. This is an excellent opportunity to be part of a significant project, with the option to work on a hybrid basis. Details: * Day Rate £320 – 350 a day Outside IR35 * Payments: Weekly * Duration: 2 - 4 years worth of work * Hybrid Working: Looking for 3 days on site 2 days working from home * Start Date: ASAP What they are looking for? * Someone who has strong experience with Revit * A good understanding of M&E based design works * The ability to work both individually and as a team * The ability to work in a fast pace environment If this role seems of any interest, please feel free to call Adam on the details...
IR35 Status:
Outside IR35

CV-Library Harrow, Greater London Contractor
CL
May 08, 2026  
Quantity Surveyor
Job Title: Project Quantity Surveyor Location: Hertfordshire Contract Type: Contract (Outside IR35) Rate: £400 per day Company Overview We are recruiting for a Project Quantity Surveyor to support delivery across a portfolio of rail infrastructure works in the Cambridge region. This is an excellent opportunity to join a growing contractor with a strong pipeline of secured rail projects, offering long-term contract potential and exposure to high-profile schemes within the sector. The Role As a Project Quantity Surveyor, you will take a lead role in managing the commercial aspects of rail projects, ensuring effective cost control, risk management, and contractual compliance throughout the project lifecycle. Working across sites in Hatfield and Cambridge, you will collaborate closely with operational teams and stakeholders to drive commercial performance and support successful project delivery. Key Responsibilities • Full commercial management of assigned rail projects • Cost...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
May 08, 2026  
Quantity Surveyor
Job Title: Project Quantity Surveyor Location: Central London Contract Type: Contract (Outside IR35) Rate: Circa £400 per day Company Overview We are recruiting for a Project Quantity Surveyor to join an established team delivering works under a long-term maintenance framework in London. This is a great opportunity to work within a structured commercial team on a stable and ongoing programme of works. The Role As a Project Quantity Surveyor, you will support the commercial delivery of maintenance works, working closely alongside a Senior Quantity Surveyor to ensure effective cost management and contractual administration. This role will be primarily based at the Surrey Quays office, with site involvement as required. Key Responsibilities • Supporting the commercial management of maintenance framework projects • Cost and value reporting and assisting with CVRs • Administration of NEC contracts (NEC3/NEC4) • Assisting with subcontractor procurement and management • Preparation of...
IR35 Status:
Outside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
May 08, 2026  
Senior Quantity Surveyor
Job Description Role: Project / Senior Quantity Surveyor (Outside of IR35) Location: Central North London Project value & type: £100m Mixed-Use Cut & Carve Refurbishment Contract Rate: £450-£500 per day (Outside IR35) Employment: Freelance / Long-Term Contract Duration: 8-12 months (Likely to be ongoing) Start: ASAP ________________________________________ The Opportunity A leading developer-contractor is seeking an experienced Project or Senior Quantity Surveyor to join their existing commercial team on a £100m flagship mixed-use cut & carve refurbishment scheme in Central London. The project is in the early stages and involves a complex refurbishment of an existing structure to deliver mixed-use residential and commercial space. This role will play a key part in both pre-contract activities and project delivery. This is an excellent opportunity for a strong Project QS looking to step up, or a Senior QS keen to work on a high-profile, technically...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 08, 2026  
Scrum Master (Software Development / SAFe)
Scrum Master (Software Development / SAFe) Location: Hertfordshire / Cambridge / London - Hybrid Contract: 12+ Months – Outside IR35 The Opportunity Our client is seeking an experienced Scrum Master to lead high-performing software development squads within their Scaled Agile Framework (SAFe). In this role, you will be the primary facilitator for the team, ensuring they remain focused on delivering high-quality software while navigating the complexities of a scaled environment. You will act as a servant-leader, removing impediments, fostering a culture of continuous improvement, and ensuring alignment with broader organizational goals. Key Responsibilities * Facilitate Scrum Ceremonies: Guide the team through all standard Agile events (Sprint Planning, Daily Stand-ups, Backlog Refinement, and Retrospectives) for software development projects. * SAFe Integration: Represent the team in ART (Agile Release Train) syncs and participate in PI Planning to manage risks, map...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 07, 2026  
Forward Deployed Engineer - Contract
Forward Deployed Engineer - Contract Morela is supporting a fast-growing AI start-up in hiring multiple Forward Deployed Engineers to work directly with customers, embedding into their environments to design, build and deploy high-impact AI solutions. This is not a back-office engineering role. You will be on the front line, translating ambiguous business problems into working AI systems, often under real-world constraints and with limited runway for iteration. If you are more comfortable shipping solutions with clients than sitting behind internal tickets, this is for you. WHAT YOU'LL BE DOING Work directly with clients to understand their business challenges and translate them into scalable, working technical solutions Design and deploy AI and ML systems in production customer environments Rapidly prototype, iterate and refine solutions based on real user feedback in real time Integrate AI models into existing client infrastructure and workflows Act as a trusted technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 07, 2026  
Principle AI Data Engineer (contract)
Principal AI / Data Engineer (Contract): Length: 3 months initally (extension is likely)  Start Date: ASAP  Location: London, Hybrid (1 day per week)  Pay Rate / Determination: £(Apply online only) p/d | Outside IR35  About: Opus is supporting a UK-based digital consultancy partnering with organisations to design, build and scale high‑impact digital and AI‑driven products, with a strong people‑first culture. The role:  A hands‑on Principal AI / Data Engineer contract to assess, shape and deliver improvements to a live AI platform across two critical workstreams. You'll be responsible for: Assessing the current AI and data platform and define clear, actionable improvements Lead on delivery across two workstreams, aligning product, data and engineering Improving the natural language data exploration platform, focusing on trust and semantic consistency Designing and implementing scalable, multi‑source data pipelines and architecture About you: Strong experience with Python and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 07, 2026  
Contract Civil Design Engineer
Contract Civil Engineer (Drainage Design) - Outside IR35 Rate: £35-£45 per hour Contract Length: Minimum 6 months IR35 Status: Outside IR35 The Opportunity We are working with a well-established, design-led civil and structural engineering consultancy known for delivering high-quality projects across a range of sectors. Due to increased workload, they are looking for an experienced Contract Civil Engineer with a strong focus on drainage design to support project delivery over an initial 6-month period. Key Responsibilities Lead the design and delivery of surface water and foul drainage systems Prepare detailed drainage strategies, calculations, and reports Design SuDS solutions in line with current UK standards and best practice Liaise with local authorities, water companies, and external stakeholders (e.g. Section 104/106 agreements) Support projects from concept through to detailed design and construction Requirements Proven experience in drainage design within a...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 06, 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 a contract basis, operating outside IR35. This hybrid position involves working within a multidisciplinary building services engineering team, contributing to the delivery of electrical design solutions across a diverse portfolio of projects. The successful candidate will play a key role in developing electrical building services designs, producing technical documentation, and supporting coordinated BIM models. Based in the London office with flexible hybrid working, this role offers the opportunity to be involved in high-quality projects alongside a team of experienced engineers and consultants. Key Responsibilities As an Electrical Design Engineer, your duties will include: * Delivering electrical building services designs across a range of projects * Producing electrical schematics, layouts, and associated technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Senior Civil Engineer
A well-established, design-led civil engineering consultancy is looking to appoint an experienced Contract Senior Civil Engineer on a long-term, Outside IR35 basis. This is a fully remote role with a strong pipeline of secured work across commercial, industrial and data centre developments. The Role You’ll take ownership of infrastructure packages from concept through detailed design, with a particular focus on: Detailed levels strategy Surface & foul drainage design Drainage slope design and optimisation External works coordination Technical delivery for planning and construction stages Projects include large commercial schemes, industrial developments and major data centre infrastructure. Software MicroDrainage (essential) What We’re Looking For Proven UK development infrastructure experience Strong background in commercial / industrial schemes Confident working autonomously in a remote environment Able to deliver technically sound, buildable drainage and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Data Migration Engineer - Active SC, HealthShare
Data Migration Engineer - Active SC, HealthShare Up to £500 (Outside IR35) Primarily remote/London 6 months We're seeking a hands‑on Data Migration Engineer to support delivery of a new healthcare platform. The role focuses on designing and delivering secure, high‑volume clinical data migrations into InterSystems HealthShare and IRIS. Key Requirements: Proven experience as a Data Migration Engineer, with Active SC (Security Clearance) Strong background in designing, developing, and delivering ETL pipelines for clinically coded healthcare data. Hands on experience working with InterSystems HealthShare and HealthConnect, including EMPI, HPD, the Integration Engine, and IRIS. Solid experience producing and maintaining data mappings and transformation logic aligned with target data models and business rules. Practical experience handling clinical terminology mappings, including SNOMED and local code sets. Experience building and managing staging‑layer pipelines within...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
AI Enigneer- 12 month contract
Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS / Azure / GCP) Docker, Kubernetes CI/CD, observability, testing for AI systemsExperience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale‑up environment A product-focused mindset — you enjoy owning features end‑to‑end Curiosity, creativity, and a genuine passion for AI Understanding of start/ scale up environments Details 12 month contract  Fully remote (London office optional)  £(Apply online only)p/d (outside IR35)
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Electrical Commissioning Manager
I am looking for an experienced Electrical Commissioning Manager to join my client, a well-established Commissioning Consultancy who are looking to bring someone new into the team. This is an ongoing freelance role where you will be assessed for outside of IR35. The selected candidates will come from either a rail, infrastructure, commerical or residential background but have the right attitude to help build a business around them whilst working on both exciting and challenging projects. I am looking for someone who has worked in this capacity for a long time and keen to manage a large project with a tier 1 contractor as the client. Roles and responsibilities: Develop and manage the Commissioning Plan and testing scripts to ensure they align with the project's specific technical requirements and the contractor's master schedule. Witness and formally sign off on all Factory and Site Acceptance Testing (FAT/SAT) for critical infrastructure equipment like HV/LV switchgear and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Contract Full-Stack JavaScript Developer - AI Platform
Contract Full-Stack JavaScript Developer (AI Platform) 📍 Location: 3 days per week in London Office 📆 Duration: 4 weeks with a longer term extension afterwards. 💼 IR35 Status: Outside IR35 💰 Rate: £500p/d – £600p/d Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer. You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of frontend engineering, backend systems, and applied LLM tooling. This is a true 0–1 build, ideal if you enjoy ownership, clean abstractions, and shipping product quickly. 🧠 What You’ll Be Working On Building and extending agent-driven workflows. Developing context management and LLM entry points. Only application-layer LLM integrations, not model training) Expanding slide generation functions and data structures. Full-stack feature development, with a frontend-heavy bias...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
DevOps Engineer
Azure DevOps Engineer – 6-month contract – SC Cleared – London/Remote – Outside of IR35 My SC Cleared customer is seeking a highly skilled Azure DevOps / Platform Engineer with deep, hands-on experience in Azure-native engineering and advanced Infrastructure as Code (IaC) practices. This role is ideal for someone who operates at the intersection of DevOps and Software Engineering—bringing a strong development mindset to infrastructure design, automation, and testing. Key Skills & Experience from the Azure DevOps Engineer: Active SC Clearance ideal/lapsed considered Advanced Azure Engineering Strong experience designing for high availability Deep understanding of Azure-native services and architecture patterns Github actions Infrastructure as Code (IaC) Expert-level proficiency with Terraform and/or Bicep Strong focus on modularity, reusability, and maintainability Experience integrating automated testing frameworks (e.g. Terratest, Checkov) Azure Networking &...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Dynamics CRM Solution Architect - Higher Education
Solution Architect - MS Dynamics, Power Platform - Higher Education Greater London, Hybrid Contract, outside IR35 £Competitive daily rate Key words: MS Dynamics, M365, D365, Higher Education, Dynamics CRM, Power Platform, Power Automate We are seeking an experienced Solution Architect to head the technical direction of a major modernisation program for our higher education industry client. Utilising Azure tools and working on MS Dynamics and other CRM technologies used in the Not For Profit/Education/Charity/Public Sector. Core Responsibilities: * Design technical architecture/solution architecture for wider Dynamics CRM Implementation * Understand and work with integration management teams, developers etc Experience required: * Higher Education/Further Education Industry experience * Ability to produce integration designs in line with the wider enterprise and solution architecture designs, patterns and principles * Proven experience as Solution...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 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
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