Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Refine by IR35 Status
Unknown Status 194 Outside IR35 58 Inside IR35 52
Refine by Categories
Engineering 174 Construction 66 Information Technology 34 Finance 6 Management 6 Automotive 5
Other 5 Manufacturing 4 Customer Service 3 Design 2 Facilities 2 Marketing 2 Science 2 Admin-Clerical 1 Distribution-Shipping 1 Education 1 Insurance 1 Media-Journalism 1 Supply Chain 1
More
Contractor senior engineer

304 senior engineer jobs found

CL
Aug 20, 2026  
Senior Engineer
We are currently recruiting for an experienced Senior Engineer to join a major water treatment project in Birmingham. This is an excellent opportunity to work on a high-profile infrastructure scheme, supporting the successful delivery of a key project within the UK water sector. The Role As Senior Engineer, you will take a leading role in the day-to-day engineering delivery of the project, ensuring works are completed safely, efficiently and in accordance with project specifications, quality standards and programme requirements. You will work closely with the Site Agent and Project Manager, providing technical leadership while supporting junior engineers and coordinating subcontractors on site. Senior Engineer Responsibilities: * Managing and overseeing site engineering activities across the project. * Leading setting out and ensuring engineering accuracy throughout the construction programme. * Producing and reviewing QA documentation, ITPs and inspection records. *...
IR35 Status:
Unknown Status

CV-Library Birmingham, West Midlands (County) 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 19, 2026  
Night Senior Engineer
Senior Engineer (Nights) – Heathrow Airport Join a Major Infrastructure Project at Heathrow Airport We are seeking an experienced Senior Engineer to join a high-profile infrastructure programme at Heathrow Airport, working permanent night shifts. This is an excellent opportunity for a proven engineering professional with strong leadership skills and extensive experience delivering complex civil engineering projects in live operational environments. The Role As Senior Engineer, you will take ownership of engineering activities across the project, ensuring works are delivered safely, efficiently, and to the highest quality standards. You will lead and mentor a team of Site and Junior Engineers while acting as the key engineering contact between site teams, management, and stakeholders. Working in a live airport environment, you'll be responsible for coordinating night-shift operations, managing technical challenges, and ensuring programme milestones are achieved with minimal...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Aug 19, 2026  
Senior Engineer
I am working in partnership with a leading groundworks and civil engineering contractor who due to continued growth and the award of several major contracts, is looking to appoint an experienced Senior Engineer to join their team in Rochdale. This is an excellent opportunity for a motivated engineering professional with a strong background in groundworks and civil engineering looking to take ownership of site engineering activities while supporting the successful delivery of complex schemes. The Role As Senior Engineer, you will be responsible for overseeing all engineering activities on site, ensuring works are delivered safely, efficiently, and to the highest quality standards. You will work closely with the Project Manager, Site Managers, and subcontractors, providing technical guidance and ensuring projects are delivered in line with programme and specification. Key Responsibilities * Lead and manage the site engineering function across multiple work fronts. * Oversee...
IR35 Status:
Unknown Status

CV-Library Rochdale, Greater Manchester Contractor
CL
Aug 19, 2026  
Senior engineer - Identity & Token Security
Senior Engineer - Identity & Token Security Rate: £550 day Outside IR35 Start Date: ASAP End Date: 18/12/2026 Active SC Clearance Location: Remote/Hybrid (UK-based) Responsibilities Design and implement OAuth 2.0 Token Exchange (RFC 8693) capabilities. Develop secure identity delegation and propagation patterns across distributed services. Implement token down-scoping and audience restriction mechanisms aligned to least-privilege principles. Design secure service-to-service authentication frameworks within zero-trust environments. Build and maintain robust JWT validation and cryptographic trust chains. Integrate applications and services using OpenID Connect (OIDC) standards Essential: OAuth 2.0 & Identity Standards Proven hands-on implementation experience with OAuth 2.0 Token Exchange (RFC 8693). Strong understanding of OpenID Connect (OIDC) core specifications. Expert-level understanding of JWT (RFC 7519). Experience signing, validating and encrypting tokens using JWS...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 19, 2026  
Senior Engineer
My client are a national civil engineering contractor who are currently seeking a Senior Engineer to help deliver highways and earthworks packages for the access roads to the Sizewell C project, with an immediate start available. This is an excellent opportunity to join one of the UK's largest infrastructure projects, delivering critical enabling works on a long-term programme. Senior Engineer Responsibilities: * Toolbox talks * Client liaison * Health and safety compliance * Setting out and overseeing highways and earthworks activities * Managing engineering teams and supporting Site Engineers * Ensuring works are delivered on programme and to specification * Managing QA documentation, ITPs, and as-built records * Resolving technical queries and coordinating with the design team * Supporting the Site Agent and Project Manager with programme delivery and reporting * Ensuring compliance with health, safety, environmental, and quality standards Senior...
IR35 Status:
Unknown Status

CV-Library Sizewell, Suffolk Contractor
CL
Aug 19, 2026  
Senior Engineer
Senior Site Engineer Location: Crawley Rate: £450 - £500 per day (PAYE Only) Start: ASAP Duration: 4 Months Project Overview We are seeking an experienced Senior Site Engineer to lead key structural and refurbishment packages on the Pier 3 Bridge project in Crawley. This is an immediate 4-month contract opportunity focusing on complex structural modifications, bridge jacking, and multi-disciplinary interface management within a high-security airfield environment. You will manage crucial sub-contractor packages, drive temporary works sign-offs, and ensure seamless delivery across various mechanical, electrical, plumbing, and structural trades. Given the airside operational setting, strong stakeholder coordination and strict compliance with permit regimes are critical. Key Responsibilities Package Management: Take technical and operational management of specialist sub-contract packages, including bridge jacking, bearing replacements, grit blasting, protective re-painting,...
IR35 Status:
Unknown Status

CV-Library Crawley, West Sussex Contractor
CL
Aug 19, 2026  
Senior Engineer
Senior Engineer - Gatwick Airport (Pier 3 Bridge Project) 📍 Location: Gatwick Airport 📅 Start Date: ASAP ⏳ Duration: 4 Months 💷 Pay: Inside IR35 (PAYE or PAYE Umbrella only) We're recruiting for a Senior Engineer to support the Pier 3 Bridge Project at Gatwick Airport. This is an excellent opportunity to work on a high-profile aviation project involving complex structural and refurbishment works in a live airport environment. Key Responsibilities Management of subcontractor packages including: Bridge jacking and bearing replacement Grit blasting and repainting works Major temporary works, including scaffolding Internal and external building alterations Permit management Stakeholder management across multiple parties Coordination and interface management with electrical and plumbing suppliers Ensuring works are delivered safely, efficiently and to programme Requirements Previous experience as a Senior Engineer on major civil engineering or infrastructure projects Aviation or...
IR35 Status:
Inside IR35

CV-Library Gatwick, West Sussex Contractor
CL
Aug 16, 2026  
Senior Engineer
We're recruiting for an experienced Senior Engineer to support the delivery of one of the UK's largest National Grid infrastructure programmes, spanning Suffolk, Essex and North East London. Works are currently commencing in Leiston, with future phases delivered across the wider programme. Candidates should be flexible to work across project locations as operational requirements evolve. Responsibilities Leading engineering delivery. Managing Section and Site Engineers. Technical assurance. Programme planning. QA management. Temporary Works. Design coordination. Client liaison. Engineering compliance. Supporting Construction Managers and Project Managers. Requirements Extensive Senior Engineer experience within heavy civils, utilities or infrastructure. National Grid or major infrastructure experience preferred. Strong leadership skills. CSCS. Full UK Driving Licence. What's on Offer £42.00 per hour CIS. Ongoing long-term contract. Immediate start. Opportunity to work on one...
IR35 Status:
Unknown Status

CV-Library Leiston, Suffolk Contractor
CL
Aug 15, 2026  
Senior Engineer
Senior Engineer - Major Infrastructure Project (Kent) - Contract We have an outstanding opportunity for a Senior Engineer to play an integral part in delivering a major highways infrastructure project in Kent, on a contract basis. The scheme includes a significant new link road together with a substantial viaduct structure spanning a river and an active rail line. About you MEng/BEng/Degree in Civil Engineering preferred Minimum of 5 years' experience in Civil Engineering, with a track record of leading site engineering teams Strong knowledge and understanding of construction management Good communicator Able to work under pressure Effective use of initiativeIf your past experience doesn't match perfectly with every requirement of the job description, we still encourage you to apply. You may be just the right candidate for us. Contract details Day rate: (Apply online only)p/d Contract duration: Ongoing IR35 status: Inside Start date: ASAPPlease apply directly or email your...
IR35 Status:
Inside IR35

CV-Library Canterbury, Kent Contractor
CL
Aug 15, 2026  
Senior Engineer
We are seeking an expirenced Senior Engineer to join a leading civil engineering contractor on a infrastructure project in Suffolk. Site Engineer Responsibilities: * Setting out. * RAMS/ ITPS * QA/QC * Managing junior Engineers Site Engineer Requirements: * Must have bulk earthworks/ highways experience. * Must have strong Groundworks Experience. * Valid CSCS card. To apply for this Site Engineer role, please submit your up-to-date CV and a member of the team will be in touch
IR35 Status:
Unknown Status

CV-Library Ipswich, Suffolk Contractor
CL
Aug 15, 2026  
Site Engineer / Senior Engineer
My client is a long established, leading, regional Civil Engineering Contractor. Due to planned growth and an influx of work in their Thames Valley Region, they are looking to appoint, on a permanent basis or a long term contract basis (12 months+) a Site Engineer / Senior Engineer to work on projects in the region which includes locations such as Basingstoke, Reading, Slough and Oxford Although their preference would be a permanently employed individual, they would also consider someone that would prefer a long-term contract position. Initially, you will be managing civil engineering projects predominantly in the water and wastewater sectors. * Setting out roads, structures and drainage with surveying equipment (GPS & Robotic Total Stations) * Assist with quality control to ensure the standards are met in accordance to the design specifications * Assist in producing permits to break ground (CAT Scanning management) * Ensuring the highest health, safety and...
IR35 Status:
Unknown Status

CV-Library Reading, Berkshire Contractor
CL
Aug 14, 2026  
Senior Engineer
My client, a leading civil engineering contractor, is seeking an experienced Senior Engineer to join their team on a major Wastewater Treatment Project. Senior Engineer Responsibilities: * Lead and coordinate engineering activities on site to ensure safe, efficient, and high-quality project delivery. * Support the Site Agent/Project Manager in delivering works in line with programme, budget, and quality requirements. * Manage and mentor Site Engineers and provide technical guidance to site teams. * Oversee setting out, quality assurance, and compliance with project specifications and drawings. * Prepare, review, and maintain engineering and project documentation. * Produce and manage RAMS, ITPs, Technical Queries (TQs), and other quality documentation. Senior Engineer Requirements: * Previous experience working as a Senior Engineer on water or wastewater treatment projects. * Strong knowledge of civil engineering, water infrastructure, and reinforced...
IR35 Status:
Unknown Status

CV-Library Liverpool, Merseyside Contractor
CL
Aug 14, 2026  
Senior Engineer
Gortmore are working with a leading contractor who are looking for a Senior Engineer on a high-Profile Project in the Bedford area. The candidate must: * Have Previous experience working on Civil’s projects working on drainage, service/ductwork installation, RC Concrete. * Must be competent in ordering Material and Rebar. * Must have previous experience working with designers. * Monitoring, manage, distribute project information to site Engineer’s and ensure accurate setting out and dimensional control is being carried out. * Ensure the works are constructed to latest design and agreed Specification. * Ensure Project QA is being carried out and site diary is maintained. * Must be competent in Auto Cad, reading drawings, Cut & Fill’s, and quantifying/ordering materials such as Concrete, rebar, drainage/earthworks materials etc. * Carry out ITP’s, KPI’s, RFI’s, etc. * Must be competent in Auto Cad and reading drawings. * Have excellent communication...
IR35 Status:
Unknown Status

CV-Library MK42, Wixams, Bedford Contractor
CL
Aug 14, 2026  
Senior Engineer
Are you an experienced Senior Engineer looking for a fast-paced, delivery focused role in London? A leading civil engineering contractor, recognised for delivering complex schemes across the infrastructure sector, is seeking a Senior Engineer to support the delivery of large-scale civil engineering projects. This position is primarily delivery orientated, with responsibility for coordinating and integrating temporary works and design outputs into buildable solutions. Key Responsibilities Lead the delivery of civil engineering works in line with programme, quality and safety requirements. Coordinate with Temporary Works Coordinators and Designers to ensure temporary works and design intent are fully integrated into the construction methodology. Plan and coordinate the implementation of temporary works, ensuring permits, RAMS and assurance processes are in place before works begin. Provide technical support to the delivery team, resolving buildability challenges and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Aug 20, 2026  
Senior Engineers
Senior Highways Site Engineer (Structures) Location: Suffolk Rate: £400 - £500 per day (PAYE Only) Start: ASAP Duration: 80 Weeks (Long-term project) Project Overview We are seeking an experienced Senior Highways Site Engineer to lead engineering control, setting out management, and quality assurance for a major highway scheme in Suffolk. This is a secure, ultra-long-term contract package offering 80 weeks of continuous work focusing on complex structural concrete elements. You will serve as a technical lead on the ground for your section, managing junior engineers, guiding site operations, and ensuring all civil engineering works are executed precisely to National Highways specifications, design drawings, and strict tolerances. Key Responsibilities Engineering Leadership & Setting Out: Oversee complex setting out and engineering controls for heavy highway infrastructure, including deep drainage, attenuation tanks, culverts, and structural concrete/retaining elements....
IR35 Status:
Unknown Status

CV-Library Suffolk, UK Contractor
CL
Aug 16, 2026  
Senior Systems Engineer
Senior Engineer - Systems, Disciplinary Engineering and Science - Interdisciplinary Job Profile Summary Baker Hughes production Controls Systems is seeking suitably experience Subsea Production Controls Senior Systems Engineers to work in the Tendering and Project Execution role. Working within a team of tendering engineers the role will lead the tendering effort on behalf of PCS Engineering and contribute to the wider ITO team tender offer. Upon award of a project this role may transition to be part of the execution team as a PCS Systems Engineer supporting the Project Execution team in delivering the project commitments. During the tendering phase you will be responsible for the PCS Engineering elements of the EPC tender, supported by the Engineering Product Owners and Engineering managers to compile a competitive system tender. Engage in tender studies for subsea control system design and support the commercial team in producing a viable commercial offering Ensure compliance...
IR35 Status:
Unknown Status

CV-Library Nailsea, UK Contractor
CL
Aug 12, 2026  
Senior Mechanical Project Engineer
One of London’s leading Building Services contractors is actively seeking a Senior Mechanical Project Engineer for a new landmark high rise residential scheme in South East London. This contractor is most prominent in commercial and residential sectors and are widely rapidly becoming one of the go to specialists in the industry, having built strong relationships with several of the tier 1 developers and contractors. As Senior Mechanical Project Engineer you will be number one on site overseeing the delivery of a £12m mechanical install, reporting directly to a Senior PM. This project is a flagship scheme for one of their longest standing clients, a market leading and widely recognised developer. Besides the chance to add a flagship project to your resume, this is a fantastic opportunity for an ambitious Engineer to fast track their career towards Project Manager level. With a lean management business model, this contractor will allow you to quickly climb the ladder and give you the...
IR35 Status:
Unknown Status

CV-Library Tower Hill, Greater London Contractor
CL
Jul 24, 2026  
Senior electronics engineer
Senior Engineer - Series Electrical Support  This amazing role for a Senior Engineer for Series Electrical Support and is a unique opportunity to showcase your expertise and skills with a world leading Motorsport/Automotive company based in Surrey. You will be a key member within the team and the person that secures this position will be crucial to the success of this dynamic company on its race/road/ projects. We're looking for a Senior Engineer for Series Electrical Support, ideally a generalist who is able to diagnose issues and deal with internal and external customers in a high-pressure environment... Line stops, component obsolescence etc... A good background in controls and electrical would be great but you will also need to have full vehicle experience, not just domain specific skills. This role covers all electrical systems including EDS. Previous motorsport electrical expereince would be great buyt not critical.  Purpose Cross-work-package technical authority. Sets...
IR35 Status:
Unknown Status

CV-Library Holt, UK Contractor
CL
Aug 15, 2026  
Senior to Lead EICA Engineer (Design Biased) - Water Sector
We're supporting a growing engineering delivery partner working across multiple long-term UK water frameworks. Due to continued project wins, they are looking to hire Senior, Lead, and Principal EICA Engineers to strengthen their design and delivery capability. This is a genuinely flexible, remote-first role where you'll still stay close to delivery - attending key site visits, FATs, and collaborative sessions without the need for constant travel. You'll be joining a team trusted to deliver high-value, complex EICA solutions across the full project lifecycle - from early design through to commissioning. The Opportunity Depending on your level, you'll either: Support delivery of key EICA packages (Senior) Take ownership of workstreams and coordinate design (Lead) Or drive technical delivery and influence projects at a strategic level (Principal)All roles offer exposure to client-facing work, technical ownership, and real project impact across critical UK infrastructure. Key...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software