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Contractor 36
Engineering Inside IR35 London Borough Of Hounslow

36 jobs found in London Borough of Hounslow

CL
Aug 21, 2026  
Engineering Surveyor
Surveyor Aviation | Night Shifts | Freelance | Inside IR35 £415 per night Are you an experienced Setting Out Engineer / Surveyor looking for a long-term night-shift opportunity? We're currently recruiting for a Setting Out Engineer / Surveyor to join a major project on a freelance basis, working full-time nights through to the end of 2026. This is an excellent opportunity for an experienced engineer who is confident with setting out and wants consistent night-shift work with a strong rate of £415 per night Inside IR35. THE OPPORTUNITY You'll be working as part of an established site team, providing accurate setting-out and surveying support to ensure works are delivered safely, accurately and to programme throughout the night. The client is looking for someone who is competent and confident with setting out. Previous asphalt/surfacing experience would be highly desirable. WHAT YOU'LL NEED ·Strong experience as a Setting Out Engineer / Surveyor ·Competent with setting out...
IR35 Status:
Inside IR35

CV-Library Hounslow, UK Contractor
CL
Aug 21, 2026  
Section Engineer
Are you an experienced Section Engineer with a strong background in heavy civil engineering and major infrastructure projects? Do you have experience delivering pipe jacking, earthworks, and deep drainage? Location: West Ruislip - 5 days on site Rate: £475 - £525/day DOE - Umbrella, Inside IR35 Duration: Nov 2027 This is an excellent opportunity for an experienced Section Engineer to join one of the UK's largest infrastructure projects, working on the delivery of earthworks, deep drainage and pipe jacking on HS2. Working closely with the Agent and Sub Agent, you will take responsibility for the day-to-day coordination of construction activities, ensuring works are planned, executed safely and delivered in line with programme requirements. You will play a key role in managing subcontractors, temporary works, permits and quality assurance while maintaining the highest health and safety standards across site. This role would suit a proactive engineer who enjoys taking ownership...
IR35 Status:
Inside IR35

CV-Library North Acton, London, UK Contractor
CL
Aug 23, 2026  
Principal Mechanical Engineer
Principal Mechanical Engineer Hybrid with occasional visits to the office Location - Manchester OR London OR Newcastle OR Glasgow Contract role - 6 months rolling Inside IR35 - £58 / hour Umbrella A Principal Mechanical Engineer is required to join a design consultancy on a 6-month rolling contract. The role is hybrid and predominantly home based, but you must be willing to occasionally travel to either Manchester, London, Newcastle or Glasgow (dependent on your location). This role will be working in the Energy Transition industry working on low-carbon projects from early-stage development through construction, operation and eventual decommissioning, currently focusing on power plant projects. Responsibilities Developing cost-effective, practical mechanical engineering solutions to complex problems Producing calculations, equipment specifications and datasheets for turbines, compressors, pumps, pressure vessels and heat exchangers Collaborating with process engineers on...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 21, 2026  
Senior Civil Engineer
Senior Civil Engineer - Drainage Design Remote (1 Day Per Month in London) £42-£48 per hour 6-Month Contract | Inside IR35 An exciting opportunity has arisen for an experienced Senior Civil Engineer to join a leading engineering consultancy delivering a diverse range of infrastructure and development projects across the UK. This Senior Civil Engineer role is ideal for someone with extensive experience in drainage design who enjoys taking projects from concept through to detailed design. You'll be responsible for producing hydraulic calculations, flood risk assessments and drainage strategies while liaising with key stakeholders including water companies, the Environment Agency and Lead Local Flood Authorities. The successful Senior Civil Engineer will work predominantly remotely, with just one day per month required in the London office, making this an excellent opportunity for experienced drainage engineers seeking greater flexibility. The Role As a Senior Civil Engineer,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 21, 2026  
Quality Performance Test Engineer
Hays are now looking for a Quality Engineer / Performance Tester for one of our local clients: £310 p/d Inside IR35 3 days p/w in the office, 2 WFH Location is one of either London, Manchester or Leicester We're looking for strong experience in performance and non-functional testing to support the delivery of large-scale digital services. The role will focus on ensuring applications are scalable, reliable and performant through a combination of performance testing, API testing and quality engineering practices. What you'll be doing Design, develop and execute performance, load, stress and endurance testing activities. Build and maintain JMeter test scripts and performance test frameworks. Perform API testing and validate system behaviour under varying loads. Analyse performance metrics, identify bottlenecks and provide recommendations for improvement. Work closely with developers, architects and delivery teams to resolve performance issues. Support CI/CD pipelines and integrate...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 19, 2026  
BIM Technician - Contract
BIM Technician - Contract London £47.00-£50.00 per hour (Inside IR35) A fantastic opportunity has become available for an experienced BIM Technician to join a highly regarded structural engineering consultancy in London on a long-term contract. With an increasing workload and several major projects already underway, our client is looking to appoint someone as soon as possible to strengthen their established BIM team. This is an excellent opportunity to work with one of London's most respected engineering consultancies, supporting the delivery of a wide variety of structural projects, where you will play a key role in producing and coordinating high-quality Revit models, working closely with structural engineers, architects and the wider design team to ensure projects are delivered accurately and efficiently. The successful candidate will have strong experience using Autodesk Revit within a structural engineering environment and be confident producing detailed structural models...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 19, 2026  
Senior Project Engineer - Rotary Piling
Senior Project Engineer – Rotary Piling Location: Central London Rate: £400–£500 per day (Inside IR35) Duration: Minimum 6 months Start Date: Immediate Carmichael UK are seeking an experienced Senior Project Engineer to join a major infrastructure project in Central London. This is an excellent opportunity for a skilled engineering professional with specialist expertise in rotary piling and complex ground conditions to play a key role on a high-profile civils scheme. Key Responsibilities Oversee and manage rotary bored piling operations, ensuring works are delivered safely, efficiently and to specification. Manage support fluid (polymer) systems, including quality control procedures and compliance with project-specific quality plans. Monitor and inspect piling and diaphragm wall activities throughout the construction process. Carry out or oversee pile shaft and diaphragm wall panel inspections prior to concreting using technologies such as Sonic Caliper and Koden...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 19, 2026  
General foreman
General Foreman – Heathrow Airport (Night Shift) Location: Heathrow Airport, West London Rate: Competitive (Inside IR35) Duration: Long-Term Infrastructure Project Shift Pattern: Nights We are currently seeking an experienced General Foreman to join a major civil engineering project at Heathrow Airport, working with a leading Tier 1 contractor on long-term airside infrastructure works. This is an excellent opportunity to be part of one of the UK's most high-profile infrastructure programmes, delivering complex civil engineering works in a fast-paced airport environment. Key Responsibilities Oversee and coordinate night shift construction activities. Manage site teams, subcontractors, and plant operations. Ensure works are delivered safely, on programme, and to specification. Monitor quality standards and ensure compliance with ITPs and company procedures. Conduct briefings, toolbox talks, and daily shift handovers. Liaise with Engineers, Site Managers, and Project...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 19, 2026  
Site / Section Engineer
Site Engineer / Section Engineer – Runway Paving (Night Shifts) Location: Heathrow Airport, London Position: Site Engineer / Section Engineer Shift Pattern: Nights – 20:00 to 06:00 Contract Type: Contract – Inside IR35 Duration: Initial short-term assignment with strong potential for extension and further project work. The Opportunity We are seeking experienced Site Engineers and Section Engineers to support a major runway paving programme at Heathrow Airport. This is an excellent opportunity to work on a high-profile aviation infrastructure project within a fast-paced airside environment. Key Responsibilities Setting out and surveying for runway and airfield paving works. Managing and coordinating subcontractors and site activities. Ensuring works are delivered safely, efficiently, and to specification. Producing and reviewing QA documentation, ITPs and as-built records. Monitoring progress and reporting against programme requirements. Supporting site management...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 22, 2026  
Rail LUL Electrician
Are you an LU BTA Electrician with experience working on London Underground? Do you have experience with cable installation, containment, or CRMS works? Job Title: LU BTA Electrician Location: Various sites across London Underground Rate: £250 per day (Inside IR35 / CIS) Contract: 3-Month Rolling Contract Shift Times: 12:00am-04:00am Start Date: ASAP This is an opportunity to support a major London Underground upgrade programme, delivering cable route management and electrical installation works across the London Underground network. Where you will add value ·Installing CRMS (Cable Route Management System) and associated containment ·Running and terminating electrical cables ·Supporting electrical installation teams during planned possessions ·Maintaining high standards of safety and workmanship ·Assisting with testing, commissioning, and installation activities ·Working collaboratively with supervisors and construction teams To succeed in this role, you will need...
IR35 Status:
Inside IR35

CV-Library Greater London, UK Contractor
CL
Aug 22, 2026  
Rail OPO Telecoms Construction Manager
Are you a Construction Manager with experience delivering telecoms / OPO works london underground infrastructure? Do you hold LU BTA? Job Title: Telecoms Construction Manager Location: London Underground Rate: £400-£450 per day (Inside IR35 / CIS) - Via Umbrella Provider Contract: 3-Month Rolling Contract Start Date: ASAP This is an opportunity to join a major London Underground infrastructure programme, supporting the delivery of telecoms and electrical upgrade works across the London Underground network. Where you will add value ·Managing day-to-day construction activities across Deep Tube work sites ·Coordinating telecoms, OPO, and electrical installation teams ·Ensuring works are delivered safely, efficiently, and to programme ·Managing subcontractors, supervisors, and operational interfaces ·Supporting possession planning, reporting, and stakeholder coordination ·Maintaining compliance with London Underground standards and procedures To succeed in this role, you...
IR35 Status:
Inside IR35

CV-Library Greater London, UK Contractor
CL
Aug 22, 2026  
Rail LUL SPC Electrician
Are you an ECS-approved Electrician with SPC (Site Person in Charge) certification? Do you have experience delivering electrical installation works within London Underground environments and hold LU BTA? Job Title: SPC Electrician Location: Various sites across London Underground Rate: £350 per day (Inside IR35 / CIS) Contract: 3-Month Rolling Contract Shift Times: 12:00am-04:00am Start Date: ASAP Are you an ECS-approved Electrician with SPC (Site Person in Charge) certification? Do you have experience delivering electrical installation works within rail or London Underground environments? This is an opportunity to join a major London Underground infrastructure programme, supporting critical installation and upgrade works across the London Underground network. Where you will add value ·Acting as SPC for electrical installation activities on works ·Supervising safe delivery of cable installation and CRMS works ·Carrying out electrical installation, testing, and...
IR35 Status:
Inside IR35

CV-Library Greater London, UK Contractor
CL
Aug 19, 2026  
Senior Engineer
Senior Engineer Aviation | Night Shifts | Freelance | Inside IR35   Are you a Senior Engineer with genuine main contractor experience, strong setting-out/site delivery knowledge and the right tickets to take ownership of night-shift works?   We're currently looking for an experienced Senior Engineer to join a long-term freelance project within an aviation environment, working full-time nights through to the end of the year.   THE OPPORTUNITY  This is a great opportunity for a Senior Engineer who is comfortable working on night shifts and has a proven track record of delivering works for a main contractor.   You'll be working as part of an established delivery team, helping ensure works are completed safely, accurately and to programme throughout the night.   The role is expected to run through to the end of 2026, offering excellent continuity for the right candidate.   WHAT YOU'LL NEED To be considered, you'll need: - Proven Senior Engineer experience within a main...
IR35 Status:
Inside IR35

CV-Library Greater London, UK Contractor
CL
Aug 21, 2026  
Data Science
Job Title: Senior Data Scientist Contract Type: Fixed Term (6 Months) Working Pattern:3 days per week in office Location: London, UK (Farringdon) Pay: £500 to £750 per day Inside IR35 Are you ready to dive deep into the world of data and transform complex business challenges into actionable insights? Our client, a leading organisation in the retail industry, is on the lookout for an enthusiastic and skilled Senior Data Scientist to join their innovative team! About the Role: As a Senior Data Scientist, you will play a pivotal role in harnessing the power of data to drive strategic decisions across various domains-ranging from online services and pricing to supply chain management and marketing. Key Responsibilities: Hands-On Analysis: Leverage your analytical mindset to tackle complex business problems and prototype effective solutions. Algorithm Design: Apply, modify, and design advanced algorithms and mathematical models to extract meaningful insights from large data sets....
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Aug 19, 2026  
Cassandra Database Engineer (NoSQL)
Cassandra Database Engineer Location: London (1 - 2 days per week onsite) Contract Length: 6 Months initially Daily Rate: Up to £730 (inside IR35 via umbrella) Are you a passionate Cassandra Database Engineer looking to make a significant impact in the financial technology landscape? Our client, a leading organisation in the banking sector, is seeking a talented individual to join their Financial Crime Technology team! This is a fantastic opportunity to utilise your NoSQL expertise in a fast-paced environment and contribute to enhancing fraud detection capabilities. Key Responsibilities: Design & Implement: Craft Cassandra keyspaces, data models, and cluster architecture tailored for a high-throughput fraud detection platform. Collaborate: Work closely with application and middleware teams, ensuring seamless data integration and alignment with business goals. Optimise: Take ownership of keyspace design, performance tuning, and operational readiness of the data platform....
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Aug 19, 2026  
Mechanical Design Consultant
Our client, a Defence and Security supplier is looking for a Mechanical Design Engineer to join them on a contract basis at their site in Maidenhead. Due to the nature of the role, applicants must hold the sole British nationality and current SC Clearance 6-month initial contract Rate is open to negotiation, inside IR35 Fully onsite in Maidenhead due to the nature of the role Job Description: Design, develop, test, and document mechanical assemblies through the full product lifecycle. Deliver robust mechanical solutions using company engineering tools and processes. Create and review mechanical documentation: design packs, analysis reports, plans, and procedures. Define and analyse mechanical performance and functional behaviours. Optimise designs for various manufacturing methods (machining, moulding, extrusion, sheet metal, casting). Perform tolerance analysis for precision parts and complex assemblies. Produce designs compliant with MIL‑STD, DEF‑STAN, EMC, TEMPEST, and...
IR35 Status:
Inside IR35

CV-Library Maidenhead, Berkshire Contractor
CL
Aug 23, 2026  
Cost Engineer
Contract Cost Engineer (Inside IR35) | Nuclear Sector | Reading | £70.68/hr Umbrella We're recruiting for an experienced Cost Engineer to support a major project within the UK nuclear industry. This is an immediate-start contract opportunity based near Reading, working on a hybrid basis with 3 days per week on site and 2 days remote. The successful candidate will play a key role in the development, management, and reporting of project costs, ensuring robust financial control throughout the project lifecycle. Key Responsibilities Develop, implement, and maintain project baseline budgets, Control Account Plans, Responsibility Assignment Matrices, and WBS dictionaries. Monitor, control, and validate project accruals, commitments, resource forecasts, and financial data. Manage cost risk budgets, contingency drawdown, and support wider project risk management activities. Control financial change management, ensuring alignment with contractual and business requirements. Produce...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Aug 23, 2026  
Mechanical Commissioning Technician
Mechanical Commissioning Technician (Contract) Location: Reading Contract Length: 6 months IR35 Status: Inside IR35 Working Pattern: Full-time, Site-Based Shift Pattern: 11 Shifts On, 3 Shifts Off Per Diem Allowance: £100 per day Umbrella - Payable for each day travelled to site for workers residing more than 30 miles from site. Important: This role will initially be based on day shifts but is expected to transition to a night shift pattern during the assignment. Security & Eligibility Requirements Candidates must be eligible to obtain Security Clearance (SC). Candidates may commence employment under BPSS clearance, provided SC clearance is actively in progress. Applicants must have lived and worked in the UK continuously for the previous 5 years to satisfy security clearance requirements. A valid CSCS or ECS card is required prior to commencement. The Opportunity Cavendish Nuclear is seeking experienced Mechanical Commissioning Technicians to support a major...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Aug 19, 2026  
Lead Systems Engineer
Lead Systems Engineer - Fluid Systems Location: Reading / Hybrid Contract: 7 Months Rate: £500-£623 per day (Inside IR35) Security Clearance: Active SC Clearance required We are recruiting for an experienced Product Delivery Manager (Fluid Systems) to support a major aerospace and defence programme. You'll lead the delivery of digital engineering capabilities across complex aircraft fluid systems, working with multidisciplinary teams, suppliers and stakeholders to ensure successful programme delivery. Key Requirements 10+ years' experience in aerospace and/or defence programmes. Degree in Engineering, Aerospace Engineering, Mechanical Engineering, Systems Engineering or similar. Experience delivering digital engineering solutions for aircraft fluid systems. Strong knowledge of Model-Based Engineering (MBE) and Digital Thread. Experience with aircraft systems such as fuel, hydraulics, environmental control, pneumatics, fire suppression, oxygen and thermal management....
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Aug 23, 2026  
Test Development Engineer
We are recruiting for a talented Hardware Design Engineer to join our client's Test Equipment Hardware Design Capability team on a 6-month contract. Part of the Test Equipment Centre of Excellence (TE CofEx), this team designs, integrates, and validates innovative test system hardware solutions that support products throughout their lifecycle. This is a fantastic opportunity to contribute to cutting-edge projects, ensure technical excellence, and help drive engineering success. Role: Test Development Engineer Pay: £50 per hour Via Umbrella Location: Stevenage Contract: Monday- Friday, 37 Hours per week, 6 Months Contract IR35 Status: Inside Security Clearance: SC Required however can start on BPSS Essential Responsibilities Prepare specifications & develop designs in line with all quality and technical standards. Develop proposals for investigations & solutions, following investigation and analysis of technical issues. Carry out design appraisals to ensure all...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
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