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Contractor 17
Engineering Outside IR35 senior mechanical design engineer

17 senior mechanical design engineer jobs found

CL
Mar 15, 2026  
Senior Mechanical Design Engineer
Position: Mechanical Design Engineer Location: Castle Donington - Hybrid Contract: Outside IR35 Type: Full-Time The Role This is an outside IR25 assignment expected to last between 6 - 12 months with the successful contractor involved in the design of a range of fabrications and components used in turbomachinery applications. Key Responsibilities: Create detailed 3D models and assemblies using Siemens NX. Generate engineering drawings Perform engineering design calculations eg Perform tolerance stack-up analysis , bolted joint. Preparation of engineering design reports Engage with suppliers and lead design for manufacturing activities Ensure designs meet industry standards, customer specifications, and regulatory requirements. Required qualifications and experience: Bachelor's degree in Engineering. Experience designing castings, machined parts and fabrications. Experience using BS8888 and/or ASME Y14.5 Proficiency in NX software. Strong skills in mechanical...
IR35 Status:
Outside IR35

CV-Library Castle Donington, Leicestershire Contractor
CL
Mar 14, 2026  
Mechanical Design Engineer
Mechanical Design Engineer - Greater Manchester Our client has an open requirement for a Mechanical Design Engineer on a 6 month contract basis with the possibility for further extension. This will operate on an outside IR35 basis so limited company contractors will be able to operate, and a rate between £35 and £43 per hour is expected, subject to level of experience and suitability. Candidates will be required to work in the office full time initially and then switch to a hybrid model of 3 days office based and 2 from home after a few weeks’ orientation. The client is looking for a good engineering background first and foremost with strong experience and knowledge of typical mechanical equipment and terminology including: Limits and fittings, bearings, linear guides, GD&T’s, rotating equipment, and automated equipment such as motors, gearboxes, and drives. They should also have a basic knowledge of working with steel structures. The client is using Creo design software -...
IR35 Status:
Outside IR35

CV-Library Eccles, City and Borough of Salford Contractor
CL
Mar 11, 2026  
Senior Project Engineer
Senior Project Engineer – Teesside (Long term contract - can be outside of scope of IR35) Working for a leading consultancy, this is a Senior opportunity for a technically strong Project Engineer to support a major infrastructure project delivering an above-ground CO₂ gathering pipeline system and associated utilities across the Teesside industrial region. This is a critical, client-facing role acting as the main engineering interface between the engineering design office and the construction site. The Role Full-time on site in Teeside (5 days per week) with occasional travel to Manchester (typically once per month) 12–18 month contract, can be outside IR35 Key Responsibilities Serve as the focal point for all engineering activity on site Own the Site Technical Query procedure and register Maintain master engineering drawings and ensure site mark-ups are captured for as-building Manage and communicate design changes to AFC deliverables Identify programme risks early,...
IR35 Status:
Outside IR35

CV-Library United Kingdom 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
Mar 15, 2026  
Automation Engineer
We're supporting a major engineering organisation delivering large‑scale automation and control upgrades across the UK water sector. Due to increased project workload, they're looking to bring in an experienced Contract Automation Engineer with strong multi‑vendor PLC/SCADA experience and full‑lifecycle project capability. The Role You'll be delivering controls and automation solutions across major water & wastewater treatment projects. This contract involves full lifecycle engineering-from specifications and design through to programming, FAT/SAT, site commissioning, and handover. Technical Requirements You must be proficient in: Allen‑Bradley / Rockwell Automation Studio 5000 / RSLogix 5000 FactoryTalk View SE/ME Schneider Electric EcoStruxure Control Expert (Unity Pro) SCADA/HMI platforms Mitsubishi Software GX Works / GX Developer Ideal Background This will suit contractors who have previously worked with businesses known for water sector systems integration,...
IR35 Status:
Outside IR35

CV-Library Staffordshire, UK Contractor
CL
Mar 15, 2026  
Senior Civil Engineer
We are seeking an experienced Senior Civil Design Engineer to support a portfolio of National Grid infrastructure projects. The role involves leading the civil and structural design elements for substation, overhead line, and other transmission‑related assets, ensuring compliance with National Grid's technical specifications and governance processes. This is an Outside IR35 contract position, offering hybrid working with on‑site collaboration. Key Responsibilities Lead and produce civil and structural designs for National Grid transmission projects (substations, foundations, compounds, cable routes, OHL works, access roads, drainage, etc.). Ensure all designs comply with National Grid TP / TS standards and relevant industry codes (BS EN, Eurocodes). Prepare design calculations, sketches, reports, specifications, and technical documentation. Manage design risk assessments and contribute to CDM compliance. Coordinate with multidisciplinary teams including electrical, geotechnical,...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Mar 15, 2026  
Senior Civil Design Engineer
Job Title: Civil Engineer - Water Rate: £35 to £45 per hour (Outside IR35) Location: Slough Type: Contract | Outside IR35 | Hybrid working About the Role: Our client is seeking an experienced Civil Engineer with strong UK water sector experience to support the delivery of complex infrastructure and non-infrastructure projects. This is a contract opportunity operating outside IR35, offering long-term project stability and hybrid working. You will provide hands-on technical expertise across the full project lifecycle, supporting design, coordination, and delivery on critical water industry schemes. About Our Client: Our client is a well-established UK engineering consultancy with a strong presence in the water sector. They are recognised for delivering technically robust, sustainable solutions and for working collaboratively with contractors, clients, and stakeholders across major programmes. Key Responsibilities: Project Delivery Support and deliver water sector projects...
IR35 Status:
Outside IR35

CV-Library Slough, Berkshire Contractor
CL
Mar 14, 2026  
Senior EC&I Engineer
Astute's Power Team is partnering with a leading organisation within the Nuclear sector, to recruit an EC&I Engineer for its Berkshire site. The EC&I Engineer role comes with a 12-month minimum contract (Outside IR35) and the opportunity to work on a technically complex and strategically important project. If you're an EC&I Engineer and are looking to work for an organisation that puts integrity and people at the forefront of everything it does, then submit your CV to apply today. Responsibilities and duties of the EC&I Engineer role Reporting to the Engineering Manager you will: EC&I Delivery Produce CE&I design concepts including SLDs, BCDs, cable schedules and layout drawings Develop designs that conform to relevant British and European standards and client requirements Produce and maintain LTQR / Technical Files in accordance with Quality Management Systems Ensure designs address operability, maintainability and safety considerations Deliver...
IR35 Status:
Outside IR35

CV-Library Aldermaston, Berkshire Contractor
CL
Mar 14, 2026  
Principal Structural Engineer
Chartered Structural Design Engineer (Contract – Outside IR35) Location: Aberdeen Engagement: Limited Company Contractor Duration: Minimum 12 months Sector: Refining, Chemical Manufacturing & Pipeline Assets Overview Burnside Recruitment is seeking an experienced Chartered Structural Design Engineer to support a long-term programme of modifications and upgrades across major onshore refinery, chemical manufacturing, and pipeline infrastructure. This is a 12‑month+ contract, operating outside IR35, and ideally suited to a limited company contractor. Key Responsibilities • Lead structural design and assessment activities for brownfield heavy civils projects within complex process plant environments. • Deliver structural calculations, reports, design packages, and technical documentation to UK regulatory and industry standards. • Provide technical oversight on modifications, upgrades, and integrity improvements • Interface with multidiscipline engineering teams, site personnel, and...
IR35 Status:
Outside IR35

CV-Library AB10, Aberdeen, Aberdeen City Contractor
CL
Mar 13, 2026  
Lead Engineer
Lead Engineer Coventry, UK (Onsite) Salary + Benefits £45,000 - £55,000 per annum (Fixed-Term Contract) or £350 - £375 per day (Ltd Company Contractor - Outside IR35) Shift Pattern / Working Hours Monday - Thursday: 08:00 - 16:35 Friday: 08:00 - 15:10 Must hold active UK Security Clearance   An established engineering organisation operating within the defence vehicle sector is seeking an experienced Lead Engineer to support a period of sustained programme growth.   This role focuses on delivering next-generation vehicle systems for global defence programmes and future mobility developments.   You will take technical ownership of complex electro-mechanical systems, ensuring solutions meet demanding customer, regulatory, and operational requirements.   Working within a collaborative, engineering-led environment, you will contribute directly to programmes that deliver advanced protection and mobility capabilities.   Both fixed-term and day-rate engagement options...
IR35 Status:
Outside IR35

CV-Library Coventry, UK Contractor
CL
Mar 13, 2026  
Design Engineer
Design Engineer Coventry, UK (Onsite) Salary + Benefits £35,000 - £45,000 per annum (Fixed-Term Contract) or £275 - £350 per day (Ltd Company Contractor - Outside IR35) Shift Pattern / Working Hours Monday - Thursday: 08:00 - 16:35 Friday: 08:00 - 15:10   Must hold active UK Security Clearance   An established engineering organisation operating within the defence vehicle sector is seeking immediately available Design Engineers to support global vehicle programmes. This role focuses on developing advanced vehicle protection and integration solutions that enhance safety, performance, and operational capability. You will work across the full design lifecycle, from initial concept through to production, contributing to technically challenging projects in demanding environments. This is a hands-on position within a collaborative engineering team, offering the opportunity to work with complex assemblies and specialist materials. Both fixed-term and day-rate engagement...
IR35 Status:
Outside IR35

CV-Library Coventry, UK Contractor
CL
Mar 13, 2026  
Manufacturing Engineer
Manufacturing Engineer Coventry, UK (Onsite) Salary + Benefits £35,000 - £42,500 per annum (Fixed-Term Contract) or £200 - £250 per day (Ltd Company Contractor - Outside IR35) Shift Pattern / Working Hours Monday - Thursday: 08:00 - 16:35 Friday: 08:00 - 15:10 Must hold active UK Security Clearance   An established engineering organisation operating within the defence manufacturing sector is seeking immediately available Manufacturing Engineers to support a six-month programme.   The role focuses on the introduction, industrialisation, and continuous improvement of vehicle-related protection systems used primarily on military platforms. Working within a highly regulated and technically demanding environment, you will ensure products are manufacturable, repeatable, cost-effective, and compliant with defence standards.   This position offers the opportunity to contribute directly to programmes delivering critical protection solutions, while developing your...
IR35 Status:
Outside IR35

CV-Library Coventry, UK Contractor
CL
Mar 13, 2026  
Principal Piping Designer
Principal Piping Designer – Contract (Outside IR35) Location: Aberdeen | Hybrid (minimum 3 days in office) A respected engineering consultancy is seeking a Principal Piping Designer to shape complex brownfield projects across the Oil & Gas and wider Energy landscape. From Concept through FEED to Detailed Design, Construction and Commissioning, your fingerprints will be on work that truly moves the sector forward. Note: This position requires attendance at the Aberdeen office at least three days per week. The Opportunity You will guide plant layout and piping design using the latest digital and CAD technologies, steering a team toward precision, safety, and excellence. Reporting to the Lead Piping Engineer, you’ll ensure every deliverable meets the highest standard. What You’ll Be Trusted With Leading and mentoring a team of piping designers to deliver on time and within budget Owning all plant layout and piping design outputs - 3D models, isometrics, GAs, plot plans, and...
IR35 Status:
Outside IR35

CV-Library Aberdeen, UK Contractor
CL
Mar 11, 2026  
Electrical Services Engineer
ARM are recruiting a Residential Electrical Engineer to support a major project at Devonport Royal Dockyard. Reporting to the Lead Construction Manager, you will be responsible for overseeing and assuring the quality of electrical installation and commissioning activities throughout the construction lifecycle. Your primary focus will be electrical works within facilities supporting submarine refit operations, ensuring compliance with scope, standards, and safety regulations. Key responsibilities: Ensuring delivery of site quality through active management, advice, and on-site support Witnessing installation and commissioning activities Managing day-to-day planning matters alongside the Lead Construction Manager Providing technical guidance to construction and project teams Resolving site issues and Technical Queries within contractual timescales Ensuring contractors adhere strictly to scope of works and approved change requests Conducting and recording inspections in...
IR35 Status:
Outside IR35

CV-Library Plymouth, Devon Contractor
CL
Mar 11, 2026  
Lead EC&I Engineer
Do you have proven experience delivering EC&I engineering within the gas, utilities, or wider energy sector, including Hazardous Area work? Can you demonstrate hands-on capability in producing electrical schematics, control logic diagrams, and instrument loop diagrams for live projects? Are you able to manage EC&I deliverables independently while collaborating closely with project and framework managers to meet critical deadlines? The Opportunity We are seeking an experienced Electrical Control & Instrumentation (EC&I) Engineer to join our commercial team on a long-term contract. You will support a portfolio of projects, ensuring the reliable and efficient operation of processes through the design, implementation, and maintenance of control systems and instrumentation. This role is central to delivering high-quality technical solutions and maintaining strong client relationships. 40 hours per week working remote with occasional office visits.  Rate: Circa...
IR35 Status:
Outside IR35

CV-Library Arley, Coventry CV7, UK Contractor
CL
Feb 14, 2026  
BMS Service Engineer
We have a fantastic opportunity for a proficient BMS Service Engineer to join a well-established building controls business working on multiple contracts in London on a contract basis. This contract position offers an excellent hourly rate paid weekly ( outside IR35) Company Profile Our client is a household name in the world of BMS providing full turnkey solutions to the Building Energy Management sector since the late 90’s. With their wealth of expertise, they are able to secure projects of all size and type and deliver a best-in-class service from design all the way to end user handover. The Role of the BMS Service Engineer As a BMS Service Engineer you will be responsible for the pre-planned and reactive maintenance of Building Management Systems, predominantly across London. You will have in-depth knowledge of BMS (Building Management Systems) hardware including fault finding, wiring and networking. You will possess the knowledge and experience to be involved with small...
IR35 Status:
Outside IR35

CV-Library London, UK 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
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