144 senior mechanical design engineer jobs found

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

I’m hiring on behalf of a pioneering clean-energy technology company, supporting them in securing an experienced Senior Mechanical Design Engineer for a 3-month paternity cover contract. This role sits within their R&D function and focuses on mechanical design for next-generation electrochemical hardware. If you're motivated by meaningful engineering challenges and want to contribute to a mission-led organisation aiming to change the future of green energy, this is a great short-term opportunity. The Opportunity You’ll work closely with the technical leadership team on key mechanical componentry for their novel electrolyser system. Expect high-impact work, rapid iteration, and the chance to influence designs at an early, innovative stage. What You’ll Be Doing Producing detailed CAD designs and drawings (OnShape preferred; SolidWorks acceptable). Delivering fully-specified drawings, BoMs, and design data for manufacturing and procurement. Identifying design and process...

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,...

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...

Role: Senior Mechanical Design Engineer (contract) Duration: 3-6 months (client flexible) Location: Hybrid (onsite prototype sessions expected) Start: ASAP preferred Software: SolidWorks required (contractor must supply own licence/seat and PC) Overview: We're recruiting a seasoned mechanical design contractor to develop and validate a folding mechanism for a new trolley. The project will use an existing design concept that needs detailed mechanical interrogation, refinement and production-ready documentation. The successful contractor will own the SolidWorks modelling work, support prototype assembly/testing, and hand over manufacturable drawings and BOMs. Day-to-day / deliverables: Review and interrogate the existing concept for kinematics, loads and failure modes. Develop full SolidWorks models and detailed drawings (GD&T applied). Produce tolerance stack-ups and tolerance analysis to ensure mechanism function. Provide DFMA recommendations and material selection...

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,...

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...

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,...

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...

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...

About the Role We are seeking an experienced Area Lead to oversee critical workstreams within a pioneering initiative aimed at converting uranium recovered from spent nuclear fuel into new fuel for future reactors. This role is integral to delivering a project that enhances national energy independence and fuel security. Key Responsibilities Leadership & Oversight Lead a multidisciplinary engineering team across mechanical, nuclear, and chemical domains. Ensure compliance with safety, regulatory, and quality standards. Technical Delivery Oversee design, development, and implementation of processes for recovered uranium fuel utilisation. Provide technical guidance on mechanical systems, nuclear fuel cycle, and chemical processing. Stakeholder Engagement Liaise with internal teams, regulators, and external partners. Represent the organisation in technical forums and client meetings. Project Management Drive schedule adherence, cost control, and risk management. Report progress...

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...

My client is seeking a highly experienced and technically adept Engineering Manager to join their senior leadership team. This critical role demands a deep specialization in the Water Sector, focusing specifically on managing the end-to-end design delivery for complex capital projects. The successful candidate will be the technical lead for our multi-disciplinary design department, ensuring seamless integration and high-quality output across MEICA (Mechanical, Electrical, Instrumentation, Control, and Automation), Civil Engineering (Civils), and Process Design disciplines. This role is fundamental to translating strategic client needs into safe, sustainable, and buildable infrastructure solutions. Key Accountabilities and Deliverables 1. Design Management & Technical Excellence Integrated Design Leadership: Own the technical direction and quality assurance for all project designs, guaranteeing integration and coordination between MEICA, Civils, and Process teams to...

Senior Electrical Design Engineer – Data Centre Project – Central London Location:         London Bridge (Hybrid working available) Contract:         6 Months (Immediate Start Preferred) Rate:                £48 per hour (Ltd / Outside IR35 subject to assessment) A leading international building services consultancy is seeking an experienced Senior Electrical Design Engineer to join their specialist data centre design team on a 6-month freelance contract. Based out of modern offices in London Bridge, you will be working on a major hyperscale data centre development across RIBA Stages 3–5. Key Responsibilities Lead electrical design packages including LV distribution, lighting, power, containment and resilience systems Coordination with multidisciplinary teams including mechanical, sustainability and BIM Attend design team meetings and manage client interface Ensure compliance with relevant standards, codes and project specifications Review and sign-off drawings,...

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

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...

Technical Safety Engineer Our client, a leading independent Oil & Gas operator are currently seeking a Technical Safety Engineer to join their QSSHE team, located in Norwich. This is a full-time, 12 month contract based in Norwich, working Monday to Friday. Essential Requirements / Qualifications: * Higher technical qualification within engineering field e.g. Process Safety, Chemical or Mechanical. * 10+ years’ experience in Safety Engineering in Oil & Gas Industry. * Software knowledge MS Office (Word/Excel mandatory), PHAST, PHA-Pro, BowTie XP, FLARESIM * Prepare technical reports and letters, work to deadlines, organised and methodical. Desirable Requirements: * Chartered in mechanical, chemical/process engineering is desirable. * Experience in both design and operation is desirable. Job overview: The Technical Safety Engineer will be part of the QSSHE team and is responsible for the provision of safety engineering support to our client’s SNS operation....

Senior Civil/Structural Engineer Location: Manchester, Liverpool or London Salary: £52,000 - £55,000 (Depending on experience) Contract: 9-month Fixed Term | 40 hours per week | Hybrid (60% office based) Want to fast-track your career with real design ownership and visibility on major rail projects? Looking for hands-on engineering that builds your reputation and grows your future? At Vextrix, you’ll lead complex infrastructure work, get your designs built, and develop as a trusted expert in the rail sector. We’re a people-first consultancy that helps talented engineers thrive through support, challenge, and opportunity. The Role You’ll play a key role in delivering high-impact civil and structural designs – from station upgrades and footbridges to multi-storey car parks and platform works. You'll be hands-on, responsible for producing and reviewing technical designs that shape real-world infrastructure. You'll grow your leadership profile, work closely with directors, and...

Senior Clean Water Process Engineer Location: Flexible (Epsom / London / Peterborough / Cambridge) Pay: Competitive - dependent on experience Role Overview We are seeking a Senior Clean Water Process Engineer to lead the design, optimisation, and delivery of clean water treatment processes for major infrastructure projects. You will provide technical leadership, mentor junior engineers, and ensure projects meet safety, quality, and regulatory standards. Key Responsibilities Lead process design, commissioning support, and optimisation. Prepare technical documentation, reports, and P&IDs. Mentor multidisciplinary teams and support project delivery. Ensure compliance with codes, standards, and sustainability principles. Essential Requirements Chartered Engineer (Process or Chemical/Process Engineering). Proven experience in clean water process engineering. Strong knowledge of conventional and advanced water treatment technologies. Ability to lead teams and manage...

Estimator – Data Centre & Civil/Structural Projects Location: East London Employment Type: Client would prefer a contractor Day Rate: This is dependent on experience as my client will look at different levels of experience. Our guide is £400 a day Circa with 5 year’s experience. Company Overview Our client is a well-established civil engineering and construction contractor operating across London, the UK and mainland Europe. The business delivers complex projects in the data centre, commercial, residential, infrastructure and industrial sectors, with expertise in: * Groundworks & Civil Engineering * Reinforced Concrete Frames (sub- and super-structure) * Structural Works * Hard Landscaping & External Works * Enabling and Package Contractor Services The company has grown steadily over the past decade and now operates with a turnover of £100m–£150m, supported by a workforce of 200–300 employees spanning project delivery, commercial, engineering and...