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Contractor 12
Engineering Outside IR35 senior detail designer

12 senior detail designer jobs found

CL
Mar 25, 2026  
Marine Design Engineer
Marine Designer - Contract (6 Months) Surrey | £52 per hour | Outside IR35 | Hybrid (3 days office / 2 days remote) RHL Recruitment, working with a leading oil and gas EPC contractor, who are seeking two experienced Senior Marine Designers to join a high-profile offshore project, on an initial 6-month contract. This is an exciting opportunity to play a key role within a dynamic Marine Team, supporting the delivery of complex offshore design scopes while coordinating with multidisciplinary teams across global offices. The Role As a Marine Designer, you will: Support and lead within the Marine Team Liaise closely with other engineering disciplines, clients, and vendors Coordinate with global project teams to deliver work within agreed timelines and budgets Provide technical guidance and mentor Junior designers Manage and oversee remote design teams Develop project-specific job notes, guides, and training materials to ensure consistent deliverable's Organise team schedules...
IR35 Status:
Outside IR35

CV-Library Surrey, UK Contractor
CL
Mar 25, 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
Mar 25, 2026  
Mechanical Design Engineer
Job Title: Mechanical Design Engineer Rate: Up to £400 per day (Outside IR35, dependent on experience) Location: Manchester (M32 0RS) - Hybrid working (minimum 3 days per week in the office) Contract Type: Contract About the Role Our client is seeking an experienced Mechanical Design Engineer to support a range of ongoing projects within the UK regulated water industry. The role will focus on UMON projects at Sewage Treatment Works, working closely with a collaborative and experienced engineering design team to deliver high-quality solutions. About the Client Our client is a well-established engineering design consultancy operating across the UK rail and utilities sectors, with a growing portfolio within the water industry. They are known for their friendly, focused culture and strong commitment to employee wellbeing. Key Responsibilities Deliver detailed mechanical design solutions for projects within the UK water sector. Work collaboratively with multidisciplinary...
IR35 Status:
Outside IR35

CV-Library Greater Manchester, UK Contractor
CL
Mar 25, 2026  
Power BI Developer
Power BI Developer - Construction, Rail & Civil Engineering Department: Commercial / Project Controls / Digital & Data Reports To: Head of Project Controls / Digital Transformation Manager Location: Working from home Employment Type: Contract - (Outside IR35) Role Overview We are seeking an experienced Power BI Developer to support major infrastructure, rail, and civil engineering projects by delivering high-quality business intelligence and data analytics solutions. The successful candidate will work closely with Project Managers, Commercial Managers, Planners, and Senior Leadership teams to transform complex cost, programme, and operational data into clear, actionable dashboards that support performance improvement, cost control, and strategic decision-making. Key Responsibilities 1. Reporting & Dashboard Development Design, develop, and maintain interactive dashboards and reports Produce reporting for: Cost Value Reconciliation (CVR) Earned Value...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Mar 22, 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
Mar 21, 2026  
Senior Process Engineer
Senior Process Engineer- Addison Project, Daresbury 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: Daresbury Contract: 12 months Start Date: Spring 2026 Workscope Addison Project Plc...
IR35 Status:
Outside IR35

CV-Library Daresbury, Borough of Halton Contractor
CL
Mar 21, 2026  
Senior C&I Designer – Contract – Ireland
Senior C&I Designer – Contract – Ireland Location: Ireland (near Cork) 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. The role will be working as part of the client organization on site supporting upgrade and modifications to a live hydrocarbon plant. The successful person must be proficient in Smart Plant Instrumentation (SPI). The role is outside IR35. Role & Responsibilities * Site based role integrated as part of the client design team on a live operational hydrocarbon processing plant. * Producing new / updating existing detailed C&I design documentation including, loop diagrams, control panel schematics, cable calculations, filed connection diagrams, I/O schedules, control circuits, failsafe circuits, LV power distribution & protection, single line diagrams, control panel GAs and layouts. * Must be...
IR35 Status:
Outside IR35

CV-Library Ireland Contractor
CL
Mar 21, 2026  
Senior Civil Engineer
Location: London (2-3 days in office) Contract Type: Long-term contract (Outside IR35) Hours: 40 per week Equipment: To be supplied by company   About the Role: We are currently seeking a talented Civil Engineer or Senior Civil Engineer to join a well-established consultancy based in London. The role involves working on a variety of development infrastructure projects, including drainage strategies and flood risk assessments. The successful candidate will have strong experience using Civil 3D and Infodrainage software, and will play a key role in delivering complex infrastructure solutions for both public and private sector clients.   Key Responsibilities:   ·Design and manage infrastructure projects for residential, commercial, and mixed-use developments. ·Prepare drainage strategies, flood risk assessments, and other associated reports. ·Utilise Civil 3D and Infodrainage to model and design drainage systems. ·Collaborate with multi-disciplinary teams, including...
IR35 Status:
Outside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Mar 20, 2026  
Part Time Civil Engineer
Contract Senior Civil Engineer – Drainage & Highways 📍 Remote ⏱ 20 Hours per Week 💰 Competitive Hourly Rate (Outside IR35 considered) A busy civil engineering consultancy is looking to appoint an experienced Senior Civil Engineer on a part-time contract basis (circa 20 hours per week). This role will focus primarily on residential and commercial development schemes, with an emphasis on drainage and adoptable highways design. The Role You will be responsible for: Surface & foul water drainage design SuDS strategies and detailed design Flood Risk Assessments S104 drainage agreements S38 & S278 highway design and approvals Liaison with LLFAs, Environment Agency and Water Authorities Supporting projects from feasibility through to technical approval This is a hands-on technical role suited to someone comfortable working autonomously and delivering compliant, buildable solutions. Software Required (some of - not all are required) Civils 3D MicroDrainage...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
Mar 18, 2026  
Senior Civil Engineer (Chartered)
Rubicon Consulting is currently recruiting for Senior Civil Engineer (Chartered) on a Initial 6 Month Contract, based in Birmingham- with travel to UK Project Sites This is a contract role, Outside IR35, with rates negotiable depending on experience. The position is based from the Birmingham office, with travel to UK project sites as required. The role sits at senior technical level, acting as the civil design authority on power projects and leading civil and structural design from concept through to construction. The work is focused on substations and transmission & distribution infrastructure, supporting major UK clients including National Grid and DNOs (e.g. SSEN / SPEN). Key details: * Senior / Chartered Civil Engineer (CEng / ICE preferred) * Outside IR35 contract * Rates negotiable * Birmingham-based with project site travel * Strong civil & structural design experience on UK power projects * Experience working to National Grid Technical...
IR35 Status:
Outside IR35

CV-Library Birmingham, West Midlands (County) Contractor
CL
Jan 17, 2026  
Compliance Engineer
Regulatory Engineer Huddersfield 12 Month Contract Outside IR35    Are you a highly organized and detail-oriented Senior Regulatory Engineer ready to be the regulatory authority behind market-leading products? Are you able to Interpret and apply relevant EU & UK Directives (e.g. Machinery Directive, Marine Equipment Directive, RoHS, Low Voltage Directive, EMC Directive, RED etc) and harmonised standards?   We are seeking a Regulatory Engineer  to own the entire product compliance lifecycle, ensuring our innovative products meet all necessary global standards, with a special focus on the EU and UK markets.   The Role: Compliance Ownership You will be the key driver for certification across the entire product journey, from initial design review through to market release.   Key Responsibilities Include: CE Marking & UKCA Leadership: Lead the conformity assessment, technical documentation, and Declaration of Conformity preparation for new and existing products. Regulatory...
IR35 Status:
Outside IR35

CV-Library Huddersfield, UK Contractor
CL
Dec 13, 2025  
Senior Public Health Design Engineer
Great long term requirement for Senior Public Health (Engineering) Design Engineer working for this innovative and mature Multi-disciplined Consulting Engineers across their major projects team To be clear this is a building services design role covering above ground drainage focusing on water supply, sanitation, drainage, and waste management, fire suppression system etc Candidates should be in a similar role with around five years experience Role would be a consulting position outside IR35 Your expert recruitment consultant is Trevor Parsons, call today on (phone number removed) or email (url removed) Eden Brown is committed to equality in the workplace and is an equal opportunity employer. Eden Brown is acting as an Employment Business in relation to this vacancy
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
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