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senior mechanical engineer

199 senior mechanical engineer jobs found

CL
Dec 21, 2025  
Senior Mechanical Engineer
Senior Mechanical Engineer Location: Warrington Contract Type: Contract (12 months) Pay: 45/50 Per Hour (Inside IR35) Must have SC Clearance or eligible About the Role We’re looking for a Mechanical Engineer to work on important nuclear projects. This is a contract role within our client’s nuclear business. You’ll help support national defence, clean up old nuclear sites, and build the future of nuclear energy in the UK. What You’ll Do * Design and develop engineering solutions for nuclear projects. * Work closely with other teams and help manage technical issues. * Talk to clients and suppliers about designs and equipment needs. * Make sure all work follows the right rules and standards. * Help improve safety, quality, and efficiency. * Investigate technical problems and help solve them. * Support the project team by writing reports and preparing technical documents. * Must have experience with Shielded Glovebox design What We’re Looking For *...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Dec 20, 2025  
Senior Mechanical Engineer
NES Fircroft are recruiting for an experienced Senior Mechanical Integrity Engineer to support our client at one of Europe’s largest onshore oilfields.   If you’re someone who thrives in a high-hazard environment, takes ownership, and enjoys being the go-to technical authority for static equipment integrity, this one’s worth a look.   What You’ll Be Doing   You’ll take the lead on senior mechanical engineering activities for static equipment, ensuring asset integrity risks are properly understood, communicated, and reduced to ALARP. You’ll also act as a key point of contact for regulatory compliance (PSSR, PSR, COMAH) and support strong relationships across both internal and external stakeholders.   Key Responsibilities Senior Asset Engineering Approve piping isometrics, purchase specifications and fabrication quality packs. Prepare technical specifications for new static equipment. Review Management of Change (MoC) proposals that may impact asset integrity. Integrity Management...
IR35 Status:
Unknown Status

CV-Library Wareham BH20, UK Contractor
CL
Dec 19, 2025  
Senior Mechanical Engineer
Ready to take the lead on complex mechanical design projects? Do you have extensive experience in hydraulic design and a strong background in the water industry? Are you confident guiding teams and delivering high-quality engineering solutions? The Opportunity We’re seeking a Senior Mechanical Engineer to join a leading engineering consultancy, working on innovative water sector projects. This is a chance to influence design standards and mentor the next generation of engineers. The Role This role would suit candidates currently working as Mechanical Design Engineer, Senior Design Engineer, Project Engineer, Hydraulic Engineer, Principal Mechanical Engineer, Mechanical Project Manager, Water Engineer, M&E Engineer, Design Lead, or Engineering Consultant. We would also welcome applications from professionals in power generation, process engineering, utilities, infrastructure, or environmental engineering. Your duties and responsibilities will be * Deliver mechanical design...
IR35 Status:
Unknown Status

CV-Library Stretford, Trafford Contractor
CL
Dec 13, 2025  
Senior / Principal Mechanical Engineer (hybrid)
Senior Mechanical Engineer – Contract – West Wales / Hybrid Location: West Wales / Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. This role is deemed to be outside IR35. Our client is based in West Wales and can accommodate a hybrid working pattern. Role & Responsibilities * Participate in relevant meetings such as Design Reviews, Model Reviews and HAZIDs. * Execute all Piping/Mechanical Engineering activities and maintain technical integrity. * Familiarity with piping, static equipment and rotating equipment. * Develop and contribute to mechanical equipment specification / datasheets to allow purchase of range of equipment. * Oversee designers in the development of multi-discipline plant upgrade project. * Supporting the development of Mechanical and Piping layout for a range of energy projects at different...
IR35 Status:
Outside IR35

CV-Library SA72, Burton Ferry, Pembrokeshire Contractor
CL
Dec 14, 2025  
Contract Senior Mechanical Design Engineer
Senior Mechanical Design Engineer - MEP Surrey Contract (Outside IR35) Hybrid - 1/2 days a week in Office Rate: £44/hr - £46/hr A consultancy we are partnered with is looking for a contract senior mechanical design engineer to work on a contract basis in their Surrey office. Consultancy or contractor background welcome, project is a large-scale residential scheme. Contract length is like to be 6-8 months. Looking to start someone in early January. If you are interested please apply with your CV
IR35 Status:
Outside IR35

CV-Library Farnham, Surrey Contractor
CL
Nov 27, 2025  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer Contract – £50-55 per hour (Outisde IR35) Location: Scotland (On-site) We're hiring on behalf of a client looking for an experienced Mechanical Design Engineer. The role focuses on the design and development of electro-mechanical products used in automated systems, including intricate internal mechanisms for an electronic machine. Key Responsibilities: • Design new components and support existing product updates • Design intricate internal mechanisms for an electronic machine • Work with operations, suppliers, and other teams • Ensure design quality, performance, and cost-effectiveness • Run design reviews, testing, and validation • Manage documentation and change control processes What We're Looking For: • 5+ years in mechanical design, ideally in electromechanical systems • Experience designing intricate internal mechanisms for complex machines • Strong CAD skills (ProE/Creo or Solidworks) • Knowledge of drive systems, mechanisms,...
IR35 Status:
Unknown Status

CV-Library Dundee, Dundee City Contractor
CL
Sep 25, 2025  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer – Automotive Test Facilities  Gaydon, Warwickshire 7-month contract Rates: Negotiable (Inside IR35) We are seeking a Senior Mechanical Design Engineer to join a leading automotive organisation, supporting the development and delivery of advanced vehicle test facilities. This role is ideal for an experienced engineer who enjoys working on complex test rigs, bespoke fixtures, and facility components that enable cutting-edge vehicle testing. The Role You’ll be responsible for the design, validation and delivery of test rigs and facility components used across a wide range of engineering labs, including structural, durability, NVH, climatic, and safety testing. Projects will vary from component-level to full vehicle applications, giving you exposure to multiple disciplines. Key Responsibilities Design test rigs and components using 3DX/Catia V6, from concept to delivery. Produce 2D manufacturing drawings for internal workshops and external...
IR35 Status:
Inside IR35

CV-Library Gaydon, Warwick CV35, UK Contractor
CL
Dec 18, 2025  
Lead Mechanical Design Engineer (Rail Stations)
Overview The Senior Mechanical Engineer will lead the design, coordination, and delivery of mechanical engineering works across Network Rail station upgrade projects. This role involves managing the design, assurance, installation, and testing of mechanical systems to ensure safe, compliant, and efficient station environments. The engineer will act as the technical authority for all mechanical elements, working closely with multidisciplinary teams, contractors, and Network Rail stakeholders. Key Responsibilities Lead mechanical engineering design and assurance for station upgrade schemes, including ventilation, HVAC, public health, fire systems, drainage, and energy efficiency improvements. Review, develop, and sign off technical documentation such as drawings, specifications, method statements, and ITPs. Ensure all mechanical designs and installations meet Network Rail standards, building regulations, CDM requirements, and industry best practices. Coordinate with civil,...
IR35 Status:
Unknown Status

CV-Library Birmingham, West Midlands Contractor
CL
Dec 21, 2025  
Senior Systems Engineer
Senior Systems Engineer – London (Hybrid) In-Vitro diagnostics · Complex systems · High-growth environment 6-12 month contract, highly competitive rate, inside IR35. Are you a Systems Engineer with deep experience in IVD or medical device development, looking to play a key role in bringing a revolutionary new diagnostic platform to market? This is an opportunity to join a fast-growing, multidisciplinary team working at the forefront of molecular diagnostics, where you’ll shape system architecture, lead technical problem-solving, and influence the direction of an entire platform. The Opportunity As a Senior Systems Engineer, you’ll work across engineering, science, software, and quality teams to define system requirements, develop system architecture, and ensure robust traceability across the full product lifecycle. You’ll also guide and mentor colleagues as the team advances a complex electro-mechanical instrument and consumable system through development. You’ll be hands-on with...
IR35 Status:
Inside IR35

CV-Library NW1, Baker Street, Greater London Contractor
CL
Dec 20, 2025  
Senior Project Engineer / Project Manager
Senior Project Engineer / Project Manager (Contract) 6–9 Month Contract Approx £45.00 - £50.00ph  Location: Coventry – Onsite, Monday to Friday Our client is a well-established engineering business specialising in complex mechanical systems and powder/material handling equipment is seeking an experienced Senior Project Engineer / Project Manager to join their expanding project portfolio. Operating from its own manufacturing, testing, and development facilities, the company supplies cutting-edge equipment to customers worldwide About the Role This is a hands-on senior position with a dynamic split of responsibilities: 60% Project Management / 40% Engineering. You will lead projects from concept to completion while actively contributing to engineering documentation, modelling, and development, directly impacting 3D CAD outputs. Key Responsibilities: Lead full project lifecycle activities under NEC4 contract frameworks. Build and manage detailed project schedules. Prepare,...
IR35 Status:
Unknown Status

CV-Library Coventry, UK Contractor
CL
Dec 20, 2025  
Senior FPGA / Digital Systems Engineer
An opportunity has arisen with my client for a Senior FPGA / Digital Systems Engineer to join them on a 12 -month contract. As Senior FPGA / Digital Systems Engineer you will support the Technical Lead/Architect in collaboration with the systems, software, firmware, mechanical and production teams to specify elegant and optimised solutions that satisfy customer needs. Once the specification has been agreed, you will be responsible for the detailed design of the high-speed digital aspects as well as leading all the other electronics design activity through the full product development lifecycle. Role: Senior FPGA / Digital Systems Engineer Pay: £70 -£80 per hour via Umbrella Company Location: Stevenage Contract: 12 Months Hours: Monday - Friday, 37 hours per week Security Clearance: Security Cleared required before starting Skills/Experince Experience in complex, high speed digital electronics design. Experience in MPSoC FGPA, DDR and Flash memory and high-speed serial...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Dec 20, 2025  
Site Agent
We are seeking an experienced Site Agent to join a major water treatment upgrade project in Oxford. This is a key role overseeing day-to-day site operations, ensuring safe, efficient, and high-quality delivery across civil, mechanical, and process elements. Key Responsibilities * Lead site operations across a live water treatment facility. * Coordinate subcontractors, labour, and materials to meet programme targets. * Ensure all work is carried out in line with H&S regulations, RAMS, and site procedures. * Manage quality assurance, documentation, and reporting to the Project Manager. * Oversee progress, identify risks, and implement corrective actions. * Liaise with the client, design teams, and internal stakeholders. * Maintain accurate site records, ITPs, permits, and daily logs. Requirements * Proven experience as a Site Agent or Senior Site Engineer on water / wastewater / infrastructure projects....
IR35 Status:
Unknown Status

CV-Library Oxford, Oxfordshire Contractor
CL
Dec 19, 2025  
Mechanical Engineer
Mechanical Engineer £19ph + Training + Progression + Overtime + Benefits 6 month Fixed Term Contract York (Commutable from: Leeds, Bradford, North Yorkshire, Tockwith, Harrogate, Wetherby, Leeds, Tadcaster, Garforth) Are you a Mechanical Engineer with Supervisory or Senior experience looking to take a Technical lead in a highly diverse and exciting role working on bespoke equipment? On offer is a days based position for a market leading company who will provide full industry training and exposure to Multi-skilled machinery to advance your skillset. This company manufacture bespoke, modern and future focused equipment into the Automation sector. This is a fixed term role with opportunity for permanent extension. This is a Monday-Friday position, where you will be based at the company's large depot assembling bespoke Mechanical equipment. This is a highly-modern and purpose built workshop with exposure to Automation. This role would suit a Mechanical Engineer looking for a...
IR35 Status:
Unknown Status

CV-Library York, North Yorkshire Contractor
CL
Dec 17, 2025  
Senior Engineers - Data Centre
Senior Level Engineers (Various) – Delivering complex infrastructure projects internationally, enhancing environments and pushing engineering boundaries. Location: Various | Rate: £(Apply online only) per day Are you a Data Centre Engineer who thrives in fast paced Data Centre Infrastructure environments and Enhancements? Do you want to be part of a company who has an excellent global reputation in the Hypercale Data Scale Mission Critical journey to achieve unprecedented levels of Data Storage? Roles needed: * Mechanical and Electrical Commissioning – Swindon – Contract/Perm * Project Manager/Design – Data Centre – Various Locations UK – Contract * Site Manager – Europe – Essen (Germany) About the company’s operations: * Our engineers bring deep technical expertise and hands-on experience across every critical discipline: * Electrical: HV/MV/LV design, power distribution, UPS, switchgear, grounding, fault studies. * Mechanical: Cooling systems, heat...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Dec 17, 2025  
Contract Senior RF Engineer
Contract Senior RF Engineer – RF Systems / Microwave – Reading – Hybrid – Outside IR35 We’re supporting a growing engineering team who need an experienced Senior RF Engineer on a long-term contract. You’ll be working across RF subsystem design, modelling, prototyping, and testing for next-generation ground terminals, with 3 days a week on-site in Reading. The project is expected to run for around 12 months and sits outside IR35. Please note that you must be eligible for SC Clearance for this contract (though you do not need to already be SC Cleared) What you’ll be doing: * Designing RF front-end modules (LNAs, PAs, filters, mixers, converters) for Ku and Ka applications * Running RF system simulations and propagation modelling * Analysing simulation and measurement data * Working with modem, antenna, and mechanical teams to optimise terminal-level performance What we’re looking for: * 7–8 years in RF or microwave design * Strong understanding of RF circuits,...
IR35 Status:
Outside IR35

CV-Library Reading, Berkshire Contractor
CL
Dec 17, 2025  
Senior Structural Engineer
Senior Structural Engineer Position Type Contract Location North East England Categories Engineering, Construction PM Group is seeking a Senior Structural Engineer for a Pharmaceutical client in the North East. Responsibilities * Working as part of the project management team, working to deliver a portfolio of structural steel, cladding & fabrication projects. * Supporting the project manager in scoping and delivery of the projects portfolio. * Working with projects team to monitor delivery of projects. * Overseeing technical building design, ensuring schedule is on spec and reviewing technical specifications. * Review and interpret engineering drawings, specifications and erection plans. * Technical oversight of the scope, design and procurement of project. * Construction management including construction timeline, in order to ensure delivery of projects on time and within budget constraints. * Working alongside existing client engineers, managers, and...
IR35 Status:
Inside IR35

CV-Library North East, UK Contractor
CL
Dec 14, 2025  
Mechanical Building Services Design Engineer
Our Client is a specialist building services consultancy known for delivering high-quality, practical, and energy-efficient engineering solutions across a range of commercial, retail, residential, leisure and industrial projects. Their reputation is built on technical excellence, a personalised service with Director level involved on all projects, and collaborative working within a client facing setting. As the business looks to resource further long term contract and framework wins, the company is now seeking to hire a talented Mechanical Building Services Design Engineer at either Intermediate or Senior/Principal level. Role Overview The Mechanical Building Services Design Engineer will be responsible for the design, specification, and coordination of mechanical systems including HVAC, public health, heating, cooling, and ventilation solutions. The role involves delivering projects from concept design through to detailed design and construction support, ensuring compliance...
IR35 Status:
Unknown Status

CV-Library West Yorkshire, UK Contractor
CL
Nov 28, 2025  
Senior Project Engineer
Outside of IR35 --- Rate negotiable My client has had an increase in work so requires more project support. You will be covering projects in the Distillery, Pharmaceutical and Chemical industries and my client is ideally looking for someone with similar industry experience, delivering engineering projects. There will be some specifying and procuring mechanical equipment involved along with supporting the engineering team, checking quotes and technical queries as well as project management. Previous experience working as a Senior Project Engineer / Project Manager covering engineering projects and working in a design office / engineering consultancy is essential. If this position is initially of any interest please apply and I will be able to provide further details. *Please note my client is only willing to consider people that have the right to work in the UK and that are already living in the UK
IR35 Status:
Outside IR35

CV-Library Greater Manchester, UK Contractor
CL
Nov 28, 2025  
Mechanical Design Engineer ~ Defence Industry ~ 6 Month Contract
Experienced Mechanical Design Engineer ~ Defence Industry ~ 6 Month Contract Nicholas Howard are delighted to be recruiting for a Mechanical Design Engineer to join a leading Global Aerospace and Defence client, based in Bedfordshire. Experience of working within the defence industry working with Armoured Fighting Vehicles and associated systems (Survivability, Lethality, Structures, Communications, Sights and Sensors) is considered essential for this role. Must have in depth knowledge of CREO CAD and Windchill software and will ideally have experience of the design of military vehicle applications. The Mechanical Design Engineer will be responsible for carrying out the duties of the Engineering department, including design, prototyping, design proving, engineering documentation, and supporting calculations. This role demands a high level of innovative thinking and the ability to synthesise ideas into functioning and manufacturable products that are compliant to design...
IR35 Status:
Unknown Status

CV-Library Bedford, Bedfordshire Contractor
CL
Sep 23, 2025  
Industrial Manufacturing Auditor
World Class Defence Organisation is currently looking to recruit 2x Industrial Manufacturing Auditor subcontractors on an initial 6 month contract.  The role can be based from either the companies Stevenage or Bolton site, depending on your preference.  The role will be predominantly working from home with just two day’s onsite. Trained auditor to AS9100 is essential. This role would suit a candidate with a strong Supplier Quality Engineer background.   Job Title: Industrial Manufacturing Auditor Rate: £35.00 per hour Location: Stevenage or Bolton site, depending on your preference   Hybrid / Remote working: 2 day per week onsite Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Industrial Manufacturing Auditor Job Description: An opportunity has arisen for an Industrial Engineering Auditor professional to...
IR35 Status:
Inside IR35

CV-Library Bolton, UK Contractor
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