163 senior mechanical design engineer jobs found

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

We have an exciting opportunity for a Senior Mechanical Engineer to get involved in expanding our clients team in Ireland and help further strengthen our technical capabilities in Europe whilst working on landmark projects. You will be joining the Mechanical team, with role will predominantly be focused on overseeing the delivery of multiple sectors including Data Centres, Commercial Office, Hotel & Residential, Retail and Laboratory projects With flexible working arrangements, great opportunities for personal growth and development and a collaborative and inclusive work environment, join us and help us in making spaces work. Design and review of mechanical system designs for a range of projects Act as a sounding board for mechanical engineers in the office, offering design direction and guidance Peer review of designs and specifications of mechanical systems Play an active role in developing the mechanical team technical capability Be expected to lead...

Senior Mechanical Engineer Basildon 6-Month Contract Paying up to £55p/h (Inside IR35 Key Responsibilities Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM system (Teamcenter). Contribute to reviews of Mechanical designs in accordance with business and industry standards. Deliver design solutions against Technical Requirements, within budget and timescales. Essential Skills & Experience Mechanical or Science degree qualified, or equivalent, with experience....

Mechanical Engineer / Senior Mechanical Engineer - Contract (Inside IR35) Warrington (Hybrid - 3 Days Onsite) £51-£56 per hour Long-Term Contract | Major Nuclear Programme - PFDO, Sellafield Are you a Mechanical Engineer ready to step into a high-impact role on one of the UK's most critical nuclear programmes? We're supporting a key delivery partner on the PFDO project at Sellafield, and we're looking for a Mechanical Engineer or Senior Mechanical Engineer to help drive engineering excellence across complex, safety-critical work. The Opportunity You'll play a vital role in delivering engineering and technical activities across the project lifecycle-bringing your expertise to solve complex challenges and ensure high-quality outputs in a regulated environment. This is a fantastic opportunity to work on a flagship nuclear programme, collaborating with experienced teams while contributing to the safe and efficient delivery of major works. What You'll Be Doing Deliver...

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...

Senior EC&I Designer Location: Warrington (Hybrid Working) Rate: £53.00 – £65.00 per hour (Inside IR35) Hours: 40 hours per week Security Clearance: SC Clearance required Sector: Nuclear The Opportunity We are recruiting for a Senior EC&I Designer to support the delivery of complex nuclear engineering projects within a highly regulated environment. This is a key role where you will lead Electrical, Control & Instrumentation design activities, provide technical leadership to a multi-disciplinary team, and ensure high-quality, compliant design outputs across the full project lifecycle. Key Responsibilities Lead EC&I design activities across nuclear projects from concept through to detailed and production design Allocate and review work, ensuring all deliverables meet nuclear industry standards and regulatory requirements Produce and check EC&I design outputs, including: Schematics Wiring diagrams Loop diagrams Cable schedules General arrangements...

The Company On-going success means my client requires a Mechanical Design Engineer (Building Services). Reporting directly to the senior Chartered Engineering manager, you will be joining a team of Building Services and CAD engineers. The Role: A Mechanical Design Engineer with demonstrable knowledge of reviewing drawings, surveying existing installations and designing HVAC systems. Most of the work is Mechanical design engineering to projects providing HVAC mechanical services solutions. You will see the project through from concept to hand-over, working closely with estimating and project management departments. Duties will include: * involvement in the design of HVAC systems to enable both new and existing systems * creating new ventilation ductwork systems, CHW & LTHW systems etc, Head Load, Cooling Load calculations, onsite visits, meetings and communicating with various clients, architects and sub-contractors etc * Coordination with electrical counterparts * take...

Process Project Engineer – Moulding / Manufacturing Role Exciting new role with our client a multinational Medical Device and Healthcare products provider. NIRAS is actively recruiting for an energetic and hands-on Manufacturing/Project Engineer to lead a key project within our Client’s Advanced Manufacturing Engineering & Process Development Team. You will work closely with Engineering, Manufacturing, Quality, R&D and Sustaining departments in the development and delivery of new process layouts, innovative automation solutions, improvement of lean processes necessary to produce components for an advanced medical device product. You will have proven problem solving, supervisory, technical ability, be approachable and able to build teams and collaborate with multi discipline teams with ease. You will be curious and questioning and establish risks and pitfalls to ensure surprises are minimized. You are an effective and able communicator, working at all levels of the...

Are you an experienced Mechanical Engineer looking to take the technical lead on complex projects in a highly regulated environment? Do you have a proven ability to deliver safe, high-quality engineering solutions across the full project lifecycle? Are you comfortable leading teams, managing stakeholders, and influencing technical and safety outcomes at a senior level? The Opportunity An excellent opportunity has arisen for a Senior Mechanical Engineer to join a well-established engineering organisation delivering technically complex projects in the nuclear sector. You will play a key role in leading mechanical engineering delivery, shaping safe and compliant designs, and supporting the development of people and processes. This role would suit candidates working in these roles Lead Mechanical Engineer, Principal Mechanical Engineer, Mechanical Design Engineer, Project Mechanical Engineer, Engineering Manager, Mechanical Engineering Consultant, Plant Engineer, Senior...

Our client is a rapidly growing business designing some of the most innovative and interesting applications for the marine industry. If you are a meticulous individual with a passion for design and development, for a pre-production project then this could be perfect for you. Senior Electrical Design Engineer (contract) Outside IR35 Marine & defence applications 6 month contract Responsibilities: System Design and Integration: Collaborate with cross-functional teams, including mechanical, software, and systems engineers, to integrate electrical systems into the overall design. Design and layout electrical systems, encompassing power distribution, wiring harnesses, connectors, control modules, and charging systems. Ensure all electrical designs comply with industry standards and safety regulations. Prototyping and Testing: Work closely with testing teams to conduct functional, performance, and safety tests on electrical systems. Diagnose and resolve any issues that arise...

Senior Process Engineer 3 positions available Locations: Warrington or Bristol Working Pattern: Hybrid - 3 days per week on site Contract Length: 12 months IR35 Status: Inside IR35 Security Clearance: UK Security Check (SC) - required Start: Subject to clearance & onboarding The Role We are seeking experienced Senior Process Engineers to support a strategically important programme within the UK nuclear sector. This role will be supporting the technical development, assessment and delivery of process solutions associated with the handling, conversion, and potential reuse of reprocessed uranium originating from historic reprocessing operations. You will play a key role in process definition, safety justification, and technical assurance across the fuel cycle, working within a highly regulated nuclear environment. Key Responsibilities Lead and deliver process engineering activities across RepU-related systems and facilities Develop and review process flows, mass...

Job Title: Mechanical Package Manager Location: Plymouth, Devon Reporting To: MEP Lead Working Hours: 50 hours per week (07:00 – 17:00) Purpose of the Role An experienced Mechanical Package Manager is required to oversee the delivery of complex mechanical works across a major, secure infrastructure project. The role involves managing design reviews, procurement, construction, and commissioning of mechanical systems, ensuring all works are completed safely, efficiently, and in full compliance with project specifications and UK regulations. Due to the nature of the facility, BPSS security clearance is required (process may take up to 8 weeks). Eligibility: Candidates must hold a passport from a NATO or MISWG member country and have resided in the UK for the past 5 years. Key Responsibilities Plan, coordinate, and manage all mechanical packages through design, procurement, installation, testing, and commissioning stages. Ensure all works are delivered safely, on time, within...

Join a world-renowned aerospace organisation as a Senior Design Engineer in Gloucester on a hybrid basis Due to a drive for greater success, this advanced manufacturing business is currently searching for Senior Design Engineer to add to their talented, hardworking team in Gloucester on an initial 12 months contract. Striving for innovation and creativity you can ensure no two days will be the same. The rate per hour: £40.00 per hour inside IR35 / umbrella Role: Design and detail efficient landing gear systems for civil and military aircraft to meet demanding customer requirements Support the design and manufacturing of the landing gear systems Lead innovative mechanical design projects and ensuring robust, reliable, and cost-effective solutions across the product lifecycle Key responsibilities: Support all aspects of concept to detail design throughout the life cycle of our landing gear programmes Support all aspects of product configuration Ensure accuracy and...

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,...

Job Title: Lead Structural Engineer Location: Bedfordshire Salary: £66.00 p/h - We are booking interviews in next week! Please call or email for a slot The Structural Integrity Engineer (SIE) is a senior technical specialist who analyses, develops, and validates the mechanical integrity of complex structural systems across light weight and heavy weight platforms. The role encompasses metallic, non metallic, and composite materials, covering design, production, testing, and maintenance phases. Core responsibilities include damage tolerance, durability, and structural modelling across dynamics, loads, stability, stress fatigue and thermal analyses. The duty cycle uses a broad array of engineering tools, notably MSC Nastran, MSC Marc, Siemens Simcenter, Beta CAE, ANSA, and PTC Creo. The Role: So, what will you be doing as an Lead Structural Engineer? The Structural Integrity Engineer will be a Subject Matter Expert in structural analysis and integrity decision making, operating...

Senior Electrical Engineer – Topside Location: London, UK (with travel to the Middle East) Employment Type: 6-Month Contract Overview We are seeking a Senior Electrical Engineer to support detailed engineering activities for offshore topside projects, including brownfield modifications. Based in London, this role will involve travel to the Middle East to support project delivery. You will work within a specialist engineering team, ensuring technical excellence, coordination, and compliance across all electrical engineering activities. Key Responsibilities Interface with subcontractors and report to the Lead Engineer Coordinate with mechanical, piping, and installation teams to ensure integrated design delivery Review engineering deliverables to ensure compliance with project scope, standards, and specifications Track key project milestones including IFC drawings and technical reviews Contribute to design documentation, models, and material selection Attend project, vendor,...

12 Month Contract Rate open to negotiation up to £80 per hour umbrella (Inside IR35) Hybrid Working – 1 – 2 days per week on site (ideally) – can offer more remote working with ad hoc visits where required Job Role: The Senior HVAC Engineer will lead the design, integration, and technical assurance of numerous HVAC systems across a complex marine platform. They will apply deep expertise in system performance, capacity assessment, and optimisation to deliver robust, compliant, and customer focused solutions throughout the shipbuilding lifecycle. The role ensures high engineering standards by driving improvements to processes, supporting technical investigations, and providing evidence-based decision making. Strong HVAC and marine/building services systems experience is essential to ensuring system reliability and capability across the platform. Key Responsibilities: Preparing specifications and developing HVAC system designs in accordance with project requirements, technical...

Senior Electrical Engineer - Topside Duration: 6 Months Contract Location: Saudi Arabia About the Role We're seeking a Senior Electrical Engineer to support detailed engineering across offshore topside projects, including brownfield modifications. You will work within a specialist engineering team, coordinating subcontractors and internal disciplines to ensure delivery aligns with scope and standards. This position involves hands-on design, technical review, interface management, and overall engineering assurance. Key Responsibilities - Interface with subcontractors and report to the Lead Engineer - Coordinate across mechanical, piping, and installation teams - Review engineering deliverables for compliance with project scope and standards - Track milestones including IFC drawings and technical reviews - Contribute to design documentation, models, and material selection - Attend project, vendor, and engineering review meetings - Support HAZID, HAZOP, and...

Job title: EC&I Senior Project Engineer Job Type: Contract IR35 Status: Inside IR35 Start date: ASAP Duration: 12 Month Pay rate: Depends on experience Location: Malton Hybrid/Remote Working: Onsite Hours of work: 37 hours Role information: A senior-level engineer responsible for delivering safe, compliant, and effective engineering solutions for complex industrial projects. The role involves leading the engineering aspects of projects from concept through to commissioning and handover, ensuring all work meets technical standards, safety regulations, and stakeholder requirements. * Define project requirements and develop engineering solutions * Produce and approve technical specifications and design * Manage and oversee detailed design and contractor work * Ensure compliance with safety, regulatory, and quality standards * Support project planning, execution, and risk management * Supervise construction, commissioning, and final handover * Maintain configuration control...

ADDISON PROJECT PLC – Senior Project Engineer, Thornton-Cleveleys 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 for you. Role: Senior Project Engineer (Contract outside IR35) Location: Thornton-Cleveleys Contract: 12 months Start Date: Spring 2026 WORKSCOPE Addison...