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Contractor 26
Engineering Outside IR35 senior engineer

26 senior engineer jobs found

CL
May 17, 2026  
Senior Engineer
Senior Site Engineer | Bridge Replacement Status: Outside IR35 (Ltd/CIS) Rate: £340 - £400 per day Duration: 6 Months Location: Seaford As the Main Contractor on this bridge replacement project, we require a high-caliber Senior Engineer to lead the technical delivery and pre-construction engineering duties. The Role: Pre-Con & Technical: Ownership of ITPs, Material Take-offs, and managing Design TQs/RFIs. Site Setup: Initial site establishment setting out, control points, and as-built surveying. Operational Control: Managing Permits to Break Ground, daily site records, and coordinating material testing. Supervision: Drafting RAMS and providing technical supervision to the site team to ensure RC structures meet specification. Requirements: Significant experience in Bridges and RC Structures. Expert with Total Station & GPS. Degree in Civil Engineering, SMSTS, and CSCS. Experience working for a Main Contractor (managing subcontractors/QA). If you are...
IR35 Status:
Outside IR35

CV-Library Seaford, East Sussex Contractor
CL
May 16, 2026  
Senior NPI Engineer - Prototype and Sample Builds
Contract Senior NPI Engineer - IoT / Electronics | Up to £42.50 per hour | Outside IR35 | 12 months Are you an experienced NPI or prototype engineer who loves getting hands-on with cutting-edge hardware? We're recruiting on behalf of a fast-growing electronics business designing and manufacturing low-power wireless wearable IoT devices for the healthcare sector. With a significant pipeline of new product launches, they need a senior engineer to own their prototype sample build process - end-to-end. The Role As Senior NPI Engineer, you'll lead sample builds across multiple concurrent IoT hardware programmes. From defining build specifications and sourcing components, to hands-on bench assembly, firmware flashing, cloud validation, and international dispatch - you'll own the full lifecycle. This is a senior individual contributor role; no direct reports, but you'll coordinate across engineering, programme management, and technician teams to get devices built right and shipped on...
IR35 Status:
Outside IR35

CV-Library Newtownabbey, County Antrim Contractor
CL
May 23, 2026  
Senior Civil Engineer
Contract Senior Civil Engineer – Outside IR35 🚨 📍 Fully Remote 💰 Competitive Hourly Rate (Outside IR35) ⏱️ 40 Hours per Week | 6-Month Contract We’re working with a well-established engineering consultancy delivering a strong pipeline of residential development projects, and they’re looking to appoint a Senior Civil Engineer on a contract basis. This is a fully remote, Outside IR35 role, offering consistent workload and the chance to work across multiple live schemes. 🏗️ The Role You’ll be involved in the design and delivery of infrastructure and drainage packages across residential projects, covering: • Infrastructure and drainage design • Feasibility studies and planning support • Preparation of technical drawings and design packages • Liaison with local authorities and stakeholders • Supporting projects through early-stage design to planning ⚙️ Key Requirements • Strong experience in residential infrastructure design • Proficient in Site 3D (essential) •...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
May 23, 2026  
Senior Civil Engineer
Remote 💰 £38–£42 per hour (Outside IR35 DOE) ⏱ 15–20 hours per week 📅 Ongoing Contract We’re working with a well-established civil engineering consultancy, known for delivering high-quality infrastructure and drainage design across a range of sectors. They are looking to engage a Senior Civil Engineer on a flexible, part-time contract basis to support a strong pipeline of work. The Role You’ll be delivering infrastructure and drainage design across: • Residential developments • Commercial schemes • Healthcare projects • Educational projects This is a hands-on technical role, ideal for someone who can operate independently and produce high-quality outputs. Key Responsibilities • Infrastructure and drainage design • Preparation of drainage strategies and detailed design packages • Modelling using Causeway Flow • Supporting planning submissions and technical approvals • Liaison with internal teams and external stakeholders Requirements • Strong background in...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
May 22, 2026  
Senior EICA Engineer
A leading engineering contractor is seeking an experienced Senior EICA Engineer to support a growing portfolio of water sector projects across the UK. This role offers flexible hybrid working, with the expectation of attending a Manchester office and project sites as required. This is a long term contract position, and can be outside ir35.  The Role Reporting to the Project Lead Engineer, you will play a key role in delivering high-quality Electrical, Control, Instrumentation & Automation (EICA) design solutions across major water frameworks. Key Responsibilities Deliver cost-effective design documentation aligned with client specifications and project requirements Produce outline and detailed EICA designs for water sector projects Conduct site surveys and provide technical input during project lifecycle Attend Factory Acceptance Tests (FATs) and produce detailed reports Review and ensure compliance of subcontractor designs Prepare, check, and approve engineering...
IR35 Status:
Outside IR35

CV-Library Manchester, UK Contractor
CL
May 22, 2026  
Senior Project Engineer
Contract Project Engineer (Capital Projects) – Outside IR35 We’re supporting a global hygenic manufacturing organisation with a significant capital investment programme in securing a Contract Project Engineer to support delivery and strategic project development across a complex environment. This role is ideally suited to a progressive, forward-thinking engineer who combines strong technical grounding with the ability to translate engineering outputs into clear, data-driven insights and presentations for senior stakeholders. The Role Working closely with the senior projects leadership team, you will support both project delivery and front-end project development, helping shape investment decisions and future pipeline. You’ll operate across the full lifecycle — from early concept and feasibility through to design — with a particular focus on structuring information, modelling capacity, and presenting robust business cases. Key Responsibilities * Deliver and support projects...
IR35 Status:
Outside IR35

CV-Library Wigan, Greater Manchester Contractor
CL
May 20, 2026  
Senior Powertrain Design Engineer - Contract
Senior Powertrain Design Engineer (Contract) Up to £50 per hour Essex We are working with a well-known engineering business who are looking for design support within a major motorsport project within their team for the next 6 months at least. This Motorsport project revolves around an in-house powertrain project, therefore this contractor will need to be well-versed within engine internal design and CATIA V5 software. This would be for immediate support for the next 6 months, with after being embedded in the team for a few weeks, this role would be Hybrid with an expectation for 2 days onsite at their Essex HQ. This will be an outside IR35 contract. If you are experienced within Powertrain Design and interested in talking about this role in more detail, please hit apply and our Senior Consultant Jack Watson will be in touch to discuss the position with you
IR35 Status:
Outside IR35

CV-Library Essex, UK Contractor
CL
May 20, 2026  
Senior EICA Engineer - Water
Senior EICA Engineer - Water Water Sector | Remote with visits to project site as required  | Long-term Contract | Outside IR35 | Competitive Rate The Opportunity We're recruiting a Senior Electrical, Instrumentation, Control & Automation (EICA) Engineer to deliver design and technical expertise across multiple UK water sector frameworks. You'll produce outline and detailed EICA designs, manage technical documentation, conduct site surveys, and support commissioning activities on water infrastructure projects. Contract Details: Outside IR35 | Competitive rate | Remote working (With UK site visits as required) | Long-term contract This role is for an experienced water treatment engineer with extensive UK water project background. You'll be responsible for producing cost-effective, compliant EICA designs that can be effectively purchased, installed and commissioned. You'll conduct surveys, review supplier quotations, prepare technical assessments and ensure all designs meet...
IR35 Status:
Outside IR35

CV-Library Manchester, UK Contractor
CL
May 20, 2026  
Senior Electrical Engineer
Location: West Wales This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy and Nuclear sectors. Our client will consider applicants for either a staff or contract position – for a contractor the role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be able to size equipment and perform cable sizing calculations * Participation...
IR35 Status:
Outside IR35

CV-Library Burton Ferry, Pembrokeshire Contractor
CL
May 13, 2026  
Senior Electrical Design Engineer - MEP
Senior Electrical Design Engineer - Building Services Contract (Outside IR35) Hybrid Watford Office-Based We have a current opportunity for a Contract Senior Electrical Design Engineer on a contract basis. The position will be based in Watford. For further information about this position please apply. About the role: * Projects - spread across a wide range of sectors, though high amount of healthcare projects * Contract Length - 6 months (can be extended) * Location - Watford Requirements: * Experience working on complex projects * Experience working for a building services consultancy/contractor * Have experience leading/coordinating a team On offer is an excellent contract rate of between £45 - £50p/h for the successful applicant. This is an Outside IR35 assignment. About Energi People Energi People is a highly specialised recruitment consultancy with a strong foothold in the global built environment sector for over 20 years. We excel in connecting technical...
IR35 Status:
Outside IR35

CV-Library Watford, Hertfordshire Contractor
CL
May 09, 2026  
Senior MEICA Commissioning Engineer
️ Lead MEICA Commissioning Engineer | Clean Water Projects | Affinity Water Region Outside IR35 | Long-Term AMP8 Programme Leadership Role | Commissioning Strategy | Team Management Some commissioning roles are about witnessing tests and signing paperwork. This one is about leading people, driving standards, and bringing structure to projects before problems ever reach site. A leading Tier 1 contractor delivering clean water projects across the Affinity Water region is looking for a Lead MEICA Commissioning Engineer to oversee commissioning delivery across a portfolio of schemes typically ranging from £5m–£10m. While the individual projects may not be mega-projects, they need someone who has operated at that level before. Someone who understands what “good” looks like on major infrastructure programmes and can bring that level of leadership, planning, coordination, and control into a growing AMP8 delivery environment. This is a role for a true commissioning leader — somebody...
IR35 Status:
Outside IR35

CV-Library Rickmansworth, Hertfordshire Contractor
CL
Apr 30, 2026  
Senior Mechanical Design Engineer
I'm recruiting for a tech start-up in Cheltenham who are growing their R&D and engineering team following a successful period. They're looking for a contract Mechanical Design Engineer to design, develop and test the products used in surveillance, security and telecoms. ROLE: Mechanical Design Engineer LOCATION: Cheltenham RATE: up to £55ph DURATION: 6 months IR35: Outside IR35 Skills required for the Mechanical Design Engineer are: * 2D/3D CAD in Solidworks * Strong protoyping skills (3d printing etc) * Ability to work in fast-paced environment * Analysis/simulation skills * Experience designing ruggedized products for extreme/harsh environments or safety-critical industries The work is 100% on-site in Cheltenham but the company can offer some flexibiltiy with hours to suit personal situation. If you're interested, please apply below or get in touch with me directly with any questions Cheers, Nathan
IR35 Status:
Outside IR35

CV-Library Cheltenham, Gloucestershire Contractor
CL
May 23, 2026  
Mechanical Engineer
Job Title: Intermediate/Senior Mechanical Engineer - 12 Month Contract or Permanent Location: Mostly remote (occasional travel to London) Contract Rate: £45-£53 per hour outside IR35 or Permanent Salary: £50-£60k About the Role: We are seeking an experienced Mechanical Engineer to join a dynamic team focused on innovative engineering solutions in the water and environmental sector. This role offers the flexibility of primarily remote work, with occasional visits to the London office, and provides the opportunity to work on cutting-edge projects in a collaborative environment. Key Responsibilities: Design, develop, and optimise mechanical systems and components. Prepare detailed engineering drawings, specifications, and documentation. Work closely with project teams to deliver solutions from concept through to installation and commissioning. Support project planning, risk assessment, and troubleshooting mechanical issues. Ensure compliance with relevant industry standards,...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 23, 2026  
Electronics / Firmware Engineer
Contract Senior Electronics / Firmware Engineer – Sensor Expertise Rate: £400–£425 per day + VAT IR35 Status: Outside IR35 Location: Greater London (3-4 days on site per week min) Contract Length: 3–6 months, with potential extension We’re working with an innovative technology business at the forefront of advanced sensing solutions, seeking a Senior Electronics / Firmware Engineer to support the development of next-generation products. This is an opportunity to join a highly collaborative, multidisciplinary team delivering cutting-edge solutions with real-world impact. In this role, you’ll take ownership of sensor characterisation and optimisation, with a particular focus on humidity and temperature sensing technologies. You’ll play a key part in refining performance, reliability, and integration within sophisticated systems, contributing directly to product development from concept through to validation. This is a hands-on engineering role suited to someone who enjoys...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 20, 2026  
Manufacturing Engineer (CNC)
Manufacturing Engineer (CNC Sliding Head) Tewkesbury (on site) Aerospace/Advanced Manufacturing Outside IR35 £50 - £55 per hour THE ROLE - Manufacturing Engineer (CNC Sliding Head) This is a fantastic opportunity to join a stand-out aerospace engineering business to support Sliding Head/Swiss Lathe Manufacturing. As a Manufacturing Engineer, you'll need to possess excellent experience in Sliding Head lathe practices and processes including programming and CAD/CAM knowledge. As an expert with Sliding Head machining, you should have knowledge of some of the following machines: Star ST38, Star SR10J, Star SW20, Citizen. DUTIES - Manufacturing Engineer (CNC Sliding Head) Authoring and approving manufacturing processes and process specifications Online and Offline programming for CNC Activities - Perform problem solving and root cause corrective actions (RCCA). Provide technical, machining task planning and authorisation. Advise and support daily shop-floor management...
IR35 Status:
Outside IR35

CV-Library Tewkesbury GL20, UK Contractor
CL
May 09, 2026  
MEICA Lead
️ MEICA Lead x 2 – Major AMP8 Scheme | Oxfordshire | Winsor Corridor Outside IR35 | £475–£550 per day | Long-Term Project Tier 1 Contractor | Major Water Infrastructure Scheme Some freelance roles are there to fill a gap. This one is there because the project genuinely needs someone strong enough to lead it. A leading Tier 1 contractor has secured a major AMP8 water scheme in the Oxfordshire region and is looking for a MEICA Lead to take ownership of delivery across a complex live project environment. They’re looking for someone who can do more than sit in progress meetings and update spreadsheets. They need somebody who understands how MEICA packages actually come together on site and someone comfortable managing technical issues, driving subcontractors, coordinating commissioning activities, and keeping momentum when programmes tighten up. You’ll be heavily involved from delivery through to completion, working alongside senior operational teams on one of the region’s key AMP8...
IR35 Status:
Outside IR35

CV-Library Oxford, Oxfordshire Contractor
CL
May 23, 2026  
Subsea CAD Designer
We are currently recruiting for an experienced Senior Subsea CAD Designer to join a FEED-stage offshore energy project, working on behalf of our client, a major oil & gas engineering contractor based in Surrey. The successful candidate will be responsible for developing and maintaining high-quality 3D models using Autodesk Inventor. You will work closely with engineers and project teams to translate technical inputs into practical, buildable 3D designs for subsea systems and equipment. This is an excellent opportunity for a strong offshore/subsea CAD designer who enjoys detailed design work in a complex engineering environment. Key Responsibilities * Produce and develop detailed 3D CAD models for subsea equipment and offshore layouts * Create and update design drawings and 3D models for FEED and detailed design stages * Support layout development of subsea systems, assemblies, and structures * Translate engineering inputs into accurate CAD deliverables *...
IR35 Status:
Outside IR35

CV-Library KT22, Leatherhead, Surrey Contractor
CL
May 22, 2026  
HV Commissioning Engineer
Astute's Power Team are partnering with a Leading EPC Contractor within the Energy Sector. We are currently recruiting for a HV Electrical Commissioning Engineer to join their Open Cycle Gas Turbine project based in Stewartby, Bedfordshire. The HV Electrical Commissioning Engineer position comes with a day rate from £550.00 to £575.00 per day outside of IR35. Role responsibilities and key skills for the role: Lead and coordinate all high-voltage (HV) commissioning activities associated with the 298MW OCGT plant, ensuring safe, compliant, and efficient delivery in line with project milestones. Execute detailed HV commissioning plans, switching schedules, and energisation procedures, aligned with the overall project commissioning strategy and grid connection programme. Supervise and manage pre-commissioning and commissioning of HV systems, including GIS/AIS switchgear, power transformers, generator step-up (GSU) transformers, protection & control systems, and grid interface...
IR35 Status:
Outside IR35

CV-Library Stewartby, Bedfordshire Contractor
CL
May 22, 2026  
Lead Mechanical Rotating Engineer
Lead Mechanical Rotating Engineer Contract Type: Outside IR35 Working Location: Hybrid - approximately 3 days per month on site (Flintshire) Start Date: ASAP Sector: Oil & Gas | Rotating Equipment | Asset Reliability Key Responsibilities - Provide technical support to operations and maintenance teams on live operational assets - Drive reliability improvement and asset performance initiatives for both onshore and offshore facilities - Plan and prioritise maintenance activities for rotating and static equipment - Conduct root cause analysis (RCA) and implement performance improvements - Support minor modifications and upgrade projects (MOC) - Collaborate with contractors and manage technical scope delivery - Ensure compliance with relevant engineering standards and regulatory requirements - Contribute to project activities including HAZOP, SIL reviews, and technical studies - Act as technical authority for rotating and lifting equipment systems - Support...
IR35 Status:
Outside IR35

CV-Library Wales, UK Contractor
CL
May 21, 2026  
Offshore Methods Lead
Lead Offshore Installation Engineers (Methods / Pipeline Landfall) We’re supporting a major Carbon Capture & Net Zero project and are looking for experienced Lead Offshore Installation Engineers to take ownership of installation methods and engineering coordination, with a strong focus on pipeline landfall activities. This is a key leadership role where you’ll bridge onshore engineering and offshore execution, ensuring safe, efficient, and technically sound delivery. The Role: * Lead and coordinate installation methods engineering activities across the project * Manage team workload, priorities, and technical output * Review and validate engineering deliverables, calculations, and procedures * Oversee implementation of installation methodologies in line with design specifications * Act as technical interface with the client and attend key meetings * Support offshore operations, including vessel-based activities and technical advisory * Ensure all...
IR35 Status:
Outside IR35

CV-Library Kingston upon Thames, Greater London Contractor
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