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Senior Mechanical Engineer United Kingdom Jobs

49 Job Offers

Senior Mechanical Engineer
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ASSYSTEM
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Senior Principal Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Principal Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Principal Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Mechanical Engineer - Water / Wastewater
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Egis Group
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Senior Mechanical Engineer
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Enseradesign
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Senior Mechanical Engineer
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Envirogen Group
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Senior Mechanical Engineer
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ASSYSTEM
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Senior Principal Mechanical Engineer
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Senior Principal Mechanical Engineer sought to lead the Cooling Water Island team for a groundbreaking Small Modular Reactor (SMR) program in Warrington, UK. Drive FEED to detailed design, manage multidisciplinary teams, and ensure regulatory compliance with ONR and HSE standards. This role offer...
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ASSYSTEM
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Senior Principal Mechanical Engineer
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Senior Principal Mechanical Engineer sought by Assystem to lead cutting-edge fusion and modular nuclear projects in Bolton, UK. You will drive design of critical systems like airlocks and penetrations, leveraging expertise in steam cycle modelling, cooling water equipment, and regulatory complian...
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ASSYSTEM
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Senior Principal Mechanical Engineer
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Senior Principal Mechanical Engineer sought to lead the Cooling Water Island team for a groundbreaking Small Modular Reactor (SMR) program in Derby, UK. Drive FEED to detailed design, manage multidisciplinary teams, and ensure regulatory compliance (ONR, HSE). Leverage expertise in steam cycle mo...
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ASSYSTEM
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Senior Mechanical Design Engineer
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Senior Mechanical Design Engineer sought in Cambridge to develop globally recognised consumer products. You need 5+ years in product development, from concept to manufacture, with strong SolidWorks and 3D CAD skills. Lead projects, mentor juniors, and apply DFM/DFA principles. Enjoy a bonus and b...
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60000.00 - 70000.00 GBP / Year
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Zenovo
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Senior Mechanical Design Engineer Pipework Component
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Senior Mechanical Design Engineer (Pipework Component) sought for a major SMR nuclear new build programme in Derby, UK. You will design safety-critical pipework to ASME III, EN 13480, and PED standards. Requires HNC/Degree in Mechanical Engineering, experience in nuclear design codes, and strong ...
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48000.00 - 62500.00 GBP / Year
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Morson Talent
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Mechanical Engineer - Water / Wastewater (Senior / Principal)
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Lead national mechanical engineering for major UK water/wastewater infrastructure as a Senior/Principal Engineer. Drive design excellence across AMP8 programmes, lead multidisciplinary teams, and shape best practice. Based in London with hybrid working, 26+ days leave, and chartership support. Id...
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Egis in the UK
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Senior Mechanical Engineer
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Senior Mechanical Engineer sought for a key role in the UK nuclear sector, supporting fleet transformation and SMR development. You will deliver technical solutions, manage design deliverables, and engage with regulators. Requires a Mechanical Engineering degree, chartered status or progress, and...
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Amentum
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Senior Mechanical Design Engineer
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60000.00 - 70000.00 GBP / Year
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Zenovo
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Mechanical Engineer - Water / Wastewater (Senior / Principal)
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Senior/Principal Mechanical Engineer sought for Egis’s expanding UK Water team in Manchester. Lead municipal water/wastewater treatment design across AMP8 and major programmes. Requires CEng, IMechE membership, and deep UK regulated water market expertise. Benefit from accelerated career progress...
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Egis in the UK
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Mechanical Engineer - Water / Wastewater (Senior / Principal)
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Lead national mechanical engineering for major UK water/wastewater infrastructure programmes. As Senior/Principal Engineer, you will shape design strategy, guide multidisciplinary teams, and drive best practice. Requires CEng, deep UK regulated water market experience, and treatment design expert...
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Egis in the UK
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About the Senior Mechanical Engineer role

Discover and apply for Senior Mechanical Engineer jobs, a pivotal career path for experienced professionals who drive innovation and ensure the integrity of complex mechanical systems. A Senior Mechanical Engineer is a seasoned expert responsible for the entire lifecycle of mechanical components and systems, from conceptual design and analysis to implementation, quality assurance, and project leadership. These roles are fundamental across diverse industries, including energy, manufacturing, aerospace, automotive, and industrial processing, where they translate theoretical principles into robust, real-world solutions.

Professionals in these senior positions typically undertake a wide array of critical responsibilities. They lead the design and development of sophisticated mechanical systems, performing detailed calculations, simulations, and analyses to ensure functionality, safety, and efficiency. A core aspect of the role involves creating and reviewing technical documentation, specifications, and engineering drawings. They often oversee project timelines, manage budgets, and coordinate multidisciplinary teams, acting as the technical authority. Senior Mechanical Engineers are also heavily involved in problem-solving, troubleshooting design or operational issues, and implementing continuous improvement processes. In many positions, they ensure strict compliance with industry standards, codes, and regulatory requirements, sometimes specializing in Quality Assurance/Quality Control (QA/QC) to oversee inspections, testing protocols, and material verification.

The typical requirements for Senior Mechanical Engineer jobs reflect the high level of expertise and leadership demanded. Candidates almost universally need a Bachelor’s or advanced degree in Mechanical Engineering or a closely related field. A proven track record, often 5-10 years of progressive experience, is essential, demonstrating a deep understanding of mechanical engineering principles, materials science, thermodynamics, and fluid mechanics. Proficiency in industry-standard software like CAD (e.g., AutoCAD, SolidWorks), CAE, and project management tools is expected. Strong analytical skills, meticulous attention to detail, and the ability to manage multiple complex projects are crucial. Excellent communication and interpersonal skills are paramount for liaising with stakeholders, mentoring junior engineers, and presenting technical information clearly. A commitment to professional development, often including relevant certifications, and a focus on safety and sustainability are hallmarks of successful candidates.

Exploring Senior Mechanical Engineer jobs opens doors to roles where technical mastery meets strategic leadership. These professionals are the cornerstone of engineering projects, ensuring that mechanical systems are not only designed to specification but are also reliable, efficient, and innovative. Whether focusing on design, project management, proposals, or quality control, senior engineers play an indispensable role in advancing technology and infrastructure, making this a highly sought-after and rewarding career for experienced engineering talent.