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Contractor 51
Outside IR35 Witham engineering

51 engineering jobs found in Witham

CL
Feb 14, 2026  
BMS Commissioning Engineering
BMS Commissioning Engineer, Tridium, Trend or Siemens Immediate start 4 - 6 month contract £300 - £360 per day Our client requires an accomplished BMS Commissioning Engineer with Tridium, Trend or Siemens Building Management Controls experience to join their team on either a project in London or a site in Hertforshire . There are several roles and projects currently available in: the City, East London and also in Hertfordshire, the best site would depend on your location and experience for each project. This is on a contract basis and will initially run for 4 to 6  months. To start immediately and is likely to be extended on a rolling basis.  This position could also be as the Lead Commissioning Engineer if you have the right experience and the rate would then reflect this. Key skills required:- Experienced in the Commissioning of Building Management Systems ( BMS ) Qualified and experienced with Tridium ,Trend or Siemens Control systems. CSCS Skill Card or equivalent is...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 15, 2026  
Contract Applications Developer (C++ & QT)
Job Title: Contract Applications Developer – C++ / Qt Location: Colchester Rate: £55 - £60 per hour (indicative, outside IR35) Contract Length: 3–6 months Working Arrangements: Primarily on-site, with some flexibility depending on project phase Overview An established technology company based in Colchester is looking for an experienced Applications Developer to support a range of embedded, GUI-driven software projects. Working within a multidisciplinary engineering team, you will focus on delivering high-quality application features, user interfaces, and on-screen display tools using C++ and Qt, closely integrated with embedded hardware systems. This role is assessed as outside IR35, making it suitable for contractors operating via a Personal Service Company (PSC). Key Responsibilities Develop and enhance GUI and application-level features using C++ and Qt for embedded platforms Build on-screen display tools and front-end components for hardware-integrated applications...
IR35 Status:
Outside IR35

CV-Library Colchester, UK Contractor
CL
Apr 21, 2026  
Project Manager
Role: Project Manager Status: Contract, 12 months outside IR35 Location: Harlow Addison Project Plc are seeking a PSC contractor to provide Project Management services to support a project in Greater London. Workscope: * To Provide engineering design-based Project Management services from Front End through detailed design. * Full responsibility for the delivery to install a new process integrated into an operational manufacturing plant. Services to be provided: * Complete project management services from Front End through detailed design * Day-to-day client interface and stakeholder management * Provide guidance to client teams and the construction manager * Plan and control scope, schedule, cost and risk * Coordinate multi-discipline design (Process, Mech, EC&I, Civils/Struct) and constructability reviews. * Lead all on site activites, proactive client, design and construction team communication is key for this role *...
IR35 Status:
Outside IR35

CV-Library CM20, Harlow, Essex Contractor
CL
Apr 21, 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 21, 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 21, 2026  
Civil & Structural Design Engineer
Civil & Structural Design Engineer, Harlow, Contract 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: Civil & Structural Design Engineer Location: Harlow Start Date: Spring 2026 Status: 6 months, Outside IR35 Workscope Addison Project Plc are...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
May 01, 2026  
Electrical Supervisor
NES Fircroft are currently recruiting an Electrical & Instrumentation Supervisor for an new state-of-the-art cement facility project in Tilbury, Essex. This is an outside IR35 contract available to limited companies. 55hrs per week, 11hr days Mon-Fri. Approx 6 months work until end of Oct. Accommodation and expenses covered by client.  Role and Responsibilities:  Responsible for implementation of Company and Project HSE Policy and the execution of Principal Contractor duties in accordance with CDM Regulations. Implementation of Company and Project Quality Plans and Procedures. Monitoring and progressing the works against the Contract Project Programme Progress control of all discipline project contractors Resolution of discipline general site engineering matters Liaising with client and contractors regards to all construction services. Holding all relevant project specifications Interface and liaison with project engineering disciplines Co-ordinating of discipline...
IR35 Status:
Outside IR35

CV-Library Tilbury, UK Contractor
CL
Apr 30, 2026  
Solution Architect
Role: Solution Architect - PLM & Enterprise Systems Rate: £650 per day (Outside IR35) Duration: (12-Month Contract) with a possibility of extension Location: Dartford, Kent (3 days per week on-site) The Opportunity "Work for a global leader in world-class engineering and construction, renowned for delivering some of the UK's most iconic infrastructure and complex high-tech manufacturing projects." We are seeking a high-caliber Solution Architect to lead the architectural vision across our clients Product Lifecycle Management (PLM) and non-SAP enterprise landscape. This is a critical role in a complex, multi-system environment where you will bridge the gap between engineering, HR, and manufacturing operations. You will be the technical authority ensuring that our clients specialist platforms are seamlessly integrated, scalable, and aligned with their broader digital transformation goals. Experience & Requirements PLM Expertise: Proven track record in PLM...
IR35 Status:
Outside IR35

CV-Library Dartford, Kent Contractor
CL
May 07, 2026  
Senior Quantity Surveyor - Outside IR35
Senior Quantity Surveyor with strong NEC contract administration experience required of either a long term (outside IR35) or permanent opportunity in East London. This position will see you work on a major construction programme that is in the civil engineering phases including enabling, utilities (power, water & telecoms) works. Key Responsibilities: Managing post-contract applications and valuations for civils projects Ensuring compliance with NEC contracts and project specifications Overseeing financial reporting, forecasting, and cost control Collaborating closely with internal teams and external stakeholders Conducting regular site visits, with an on-site presence required three days a week Managing variations, claims, and contract administration Ensuring timely and accurate invoicing and payment processing Providing risk management and mitigation strategies for utilities projects Job Requirements: Extensive experience in Quantity Surveying within a main contractor...
IR35 Status:
Outside IR35

CV-Library Newham, London Contractor
CL
May 02, 2026  
PSV Technician Cambridge *contractor
Roles - PSV Engineer / PSV Technician / PSV Mechanic / Bus Technician Location: Cambridge Pay Rate: £34.00 per hour Outside IR35 Do one of these roles describe you? Do you feel undervalued your current role? Are you an experienced PSV Mechanic? Are you available to start work right away? Why not come join our team of engineers here at Excel Resourcing, we specialise in supporting several blue-chip clients who operate in the road transport industry. Benefits of working for Excel: * Weekly Pay * Long-term contracting work * Product Training provided * Minimum Hourly Rate of £34.00 These roles involve: * Carrying out routine maintenance and repairs on all makes of PSV * Diagnosing and rectifying all types of PSV faults * Ensuring all vehicles worked upon are handled carefully and that the relevant precautions are taken whilst on the premises. * Liaising with the parts department to attain correct parts. * Ensuring health & safety regulations and safe...
IR35 Status:
Outside IR35

CV-Library Cambridge, Cambridgeshire Contractor
CL
May 08, 2026  
Rolling Stock Project Manager
Project Manager - Rolling Stock / Fleet Programme Location: London (Hybrid - 1-2 days on site/office) Rate: £500 per day (Umbrella) A major London organisation is seeking a Project Manager to support delivery within a key Rolling Stock / Fleet programme, focused on Victoria Line trains and associated systems. This is a hands-on delivery role managing complex, multi-stakeholder capital projects in a live rail environment, ensuring outputs are delivered to time, cost, quality, and safety standards. Key Responsibilities Lead delivery of high-value capital projects through full lifecycle Manage governance, reporting, risk, change, and project controls Coordinate multiple stakeholders, contractors, and delivery partners Manage budgets, procurement, contract administration, and variations Track programme performance and ensure delivery against milestones Ensure compliance with health & safety and organisational standards Support effective interface management across multiple...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
May 07, 2026  
Senior Infrastructure Engineer
Senior Infrastructure Engineer - Drainage & Design (Contract) Location: London (Hybrid: 3-4 days in office, flexible) Contract Length: 6 months Hours: 37.5 hours per week IR35 Status: Outside IR35 Rate: £40-£45 per hour The Opportunity: A growing, dynamic infrastructure consultancy is seeking a Senior Infrastructure Engineer to join their team on a contract basis. This is an exciting opportunity to take on a central role in delivering drainage and infrastructure projects within a close-knit team. You'll have the chance to lead the design and coordination of various drainage, flood risk, and roadworks projects, while enjoying the flexibility and autonomy of working in a smaller consultancy environment. This role is perfect for an experienced engineer who enjoys both hands-on technical work and collaboration in a supportive, team-driven setting. Key Responsibilities: ·Lead the design of drainage, flood risk, and infrastructure projects from start to finish...
IR35 Status:
Outside IR35

CV-Library City of London, London, UK Contractor
CL
May 06, 2026  
BIM Coordinator - Contract
BIM Coordinator - Contract Central London £300.00 per day (outside IR35) We are urgently looking for an experienced BIM Coordinator for an ongoing contract role in London. You will coordinate BIM models across civil, structural, and M&E disciplines, ensure ISO 19650 compliance, resolve clashes, and support project teams with hands-on technical BIM input. Our client needs candidates with strong experience with Revit, Navisworks, BIM 360 (or similar) and a background in civil, structural, or M&E engineering are essential. Immediate start, long-term contract. This role is based full time in the office with no hybrid option. Please send your CV to Graham Ventham at Conrad Consulting to learn more and be considered
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Jan 21, 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 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.- Skilled in Amtech, and Dialux/Relux, with AutoCAD and Revit proficiency being beneficial. Sound knowledge of British Standards and building...
IR35 Status:
Outside IR35

CV-Library City of London, London 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
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
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 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
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