Senior Opto-Mechanical Engineer: Photonics Packaging

Company IconOLIX
Location IconLondon

A cutting-edge tech company in Greater London is seeking a Mechanical Engineer focused on designing opto-mechanical assemblies. The role requires a minimum of 5 years of hands-on experience with a strong background in tolerance stack-up analysis for...Read More>>.

Posted: April 9th, 2026
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Principal Mechanical Engineer – Water & Wastewater Lead

Company IconMott MacDonald
Location IconManchester

A leading design and build firm in Manchester is looking for a Principal Mechanical Engineer to lead mechanical design on key water and wastewater projects. This role involves managing project teams, mentoring engineers, and ensuring design standards...Read More>>.

Posted: April 11th, 2026
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Principal Mechanical Engineer- Operational Assets - (2042)

Company IconHoare Lea
Location IconBirmingham

Principal Mechanical Engineer- Operational Assets - (2042) Location Travel Job Type Full Time Category Mechanical Engineering Job Description Principal Mechanical Engineer....Read More>>.

Posted: April 11th, 2026
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Nuclear Mechanical Engineering Lead – Onsite UK

Company IconAssystem GmbH
Location IconWhitehaven

A leading engineering company in Whitehaven, UK, is seeking a Principal Mechanical Engineer with strong nuclear sector experience. The role includes managing engineering requirements, mentoring team members, and ensuring compliance with standards. Ca...Read More>>.

Posted: April 11th, 2026
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Lead Mechanical Engineer – Water and Wastewater Systems

Company IconAdvance TRS
Location IconRhyl

A leading engineering consultancy is looking for a Principal Mechanical Engineer in Rhyl, UK. This key role involves providing strategic leadership in the design of mechanical systems for water and wastewater projects. The ideal candidate has a degre...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer — Water Infrastructure Leader

Company IconMott MacDonald
Location IconPeterborough

A leading engineering consultancy in the UK is seeking a Senior Mechanical Engineer to join their team and lead innovative water solution projects. You will ensure compliance and safety in mechanical designs, mentor junior engineers, and drive sustai...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer - Building Services Lead

Company IconEnergi People
Location IconManchester

A leading engineering consultancy in Manchester is seeking a Principal Mechanical Engineer to oversee high-profile building services projects in the commercial, residential, and public sectors. This senior position will focus on technical leadership,...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer - Water Infrastructure Lead

Company IconMatchtech
Location IconBristol

A leading engineering consultancy in the UK is seeking a Senior Mechanical Engineer to manage technical design work and lead a team within the Water Sector. You will oversee project briefs, budgets, and ensure high-quality standards. The ideal candid...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer – Buildings Services (Sustainability)

Company IconRamboll
Location IconBristol

A leading consultancy firm seeks a Senior/Principal Mechanical Engineer to advance sustainable practices in their Building Services team. This role involves leading MEP projects, managing engineers, and completing designs. Candidates should have an a...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer – Nuclear Projects Lead

Company IconNUKEM Ltd.
Location IconWest Boldon

A nuclear engineering firm based in the UK seeks a Senior Mechanical Engineer to spearhead project scopes within highly regulated industries. The role offers a hybrid work model and requires expertise in delivering mechanical engineering solutions, w...Read More>>.

Posted: April 11th, 2026
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Senior Mechanical Engineer (Perm or Contract)

Company IconJAB Recruitment
Location IconScotland

Technical execution and delivery of projects using technical expertise and experience in engineering, design and any validated associated software. Accountability, roles and responsibilities The post holder will...Read More>>.

Posted: April 28th, 2026
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Senior Mechanical Engineer Lead - Healthcare & Education

Company IconAECOM
Location IconBristol

AECOM is seeking an Associate Director in Mechanical Engineering to join their South West MEP team. The role offers a hybrid work model and involves managing healthcare, education, and defence projects. The ideal candidate will have extensive experie...Read More>>.

Posted: April 30th, 2026
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Senior Mechanical Engineer – Building Services (Cardiff)

Company IconKonker Recruitment
Location IconWales

Konker Recruitment is seeking a Principal/Senior Mechanical Engineer for building services design in Cardiff. This role pays up to GBP65,000 and offers flexible working, competitive benefits, and opportunities for career progression. Ideal candidates...Read More>>.

Posted: April 30th, 2026
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Senior Mechanical Engineer - Water & Utilities Consultant

Company IconAdler & Allan
Location IconLeeds

Adler & Allan is seeking a Senior Mechanical Engineer to primarily work within the water industry, but coverage may extend to utilities and industrial clients. The role is likely to include being seconded to clients on a part-time or full-time basis....Read More>>.

Posted: May 1st, 2026
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Principal Mechanical Engineer - Water Infrastructure Hybrid

Company IconSeeds Renewables
Location IconGlasgow

AECOM is seeking a Principal Mechanical Engineer in Scotland with hybrid work options. This role entails leading design activities for water and wastewater infrastructure projects. Responsibilities include preparing feasibility studies, collaborating...Read More>>.

Posted: May 2nd, 2026
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Senior Mechanical Engineer – Building Services, London

Company IconCelnor
Location IconLondon

Celnor is seeking a Senior Mechanical Engineer in London to lead the design of mechanical systems for building services projects, including HVAC, plumbing, and fire protection systems. The ideal candidate should hold a Bachelor's degree in Mechanical...Read More>>.

Posted: May 2nd, 2026
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Principal Mechanical Engineer – Lead Major Projects

Company IconHoare Lea
Location IconManchester

Hoare Lea is seeking a Principal Mechanical Engineer to join their team in Manchester. In this role, you will support and deliver designs for a variety of projects in sectors like Residential and Healthcare. You will manage client relationships, lead...Read More>>.

Posted: May 3rd, 2026
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Associate Mechanical Engineer | Asset Performance & Buildings

Company IconSelect4Jobs
Location IconLondon

London Area (UK) | Full-time | Permanent Are you an Associate Mechanical Engineer who combines technical expertise with leadership and client impact? Do you enjoy working in environments where existing buildings, operational performanc...Read More>>.

Posted: May 3rd, 2026
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Principal Mechanical Engineer – Client-Driven Leader

Company IconHoare Lea
Location IconManchester

A leading engineering consultancy located in Manchester is seeking a Principal Mechanical Engineer to deliver high-quality designs. The successful candidate will work within a multidisciplinary team, manage client relationships, and ensure project de...Read More>>.

Posted: May 4th, 2026
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Senior Mechanical Engineer - Warrington or Abingdon

Company IconOrano
Location Icon

Location: Warrington or Abingdon (hybrid)Within the Engineering team, the Mechanical Engineer will integrate operational engineering multi-disciplines teams delivering projects at various phases, from FEED to commissioning, or in assistance...Read More>>.

Posted: May 4th, 2026
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Senior Mechanical Engineer - Hybrid Design and Commissioning

Company IconOrano
Location Icon

Orano is seeking a Mechanical Engineer for their Engineering team in the UK, primarily based in Abingdon or Warrington with a hybrid work model. The role involves integrating operational engineering teams to deliver projects ranging from FEED to comm...Read More>>.

Posted: May 4th, 2026
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Senior Mechanical Engineer – Building Services (Mentor)

Company IconWaterman Group
Location IconManchester

Waterman Group is seeking an experienced Senior Mechanical Engineer to join their Building Services team in Manchester. This role will involve delivering high-quality mechanical design solutions across a diverse portfolio, mentoring junior engineers,...Read More>>.

Posted: May 4th, 2026
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Associate Mechanical Engineer — Lead Projects (Manchester)

Company IconHoare Lea
Location IconManchester

A leading engineering consultancy is seeking an Associate Mechanical Engineer in Manchester. This role involves delivering designs across various projects, fostering client relationships, and coordinating multidisciplinary teams. The ideal candidate...Read More>>.

Posted: May 4th, 2026
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Water Industry Mechanical Engineer — Flexible Hybrid

Company IconStantec
Location IconLondon

Stantec is seeking a Mechanical Engineer in the UK to engage in significant water infrastructure projects. Applicants should have a degree in Mechanical Engineering, with demonstrated experience in pumps and pressure systems. The role offers flexible...Read More>>.

Posted: May 6th, 2026
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Senior Mechanical Engineer - Nuclear & Defense (Hybrid)

Company IconAssystem GmbH
Location IconNewcastle upon Tyne

Assystem GmbH is seeking a Senior Mechanical Engineer in Newcastle upon Tyne. This permanent role involves managing the development and review of technical documentation within a highly regulated environment. Candidates should possess a BEng in Mecha...Read More>>.

Posted: May 9th, 2026
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Lead Mechanical Engineer – Rail Stations Design

Company IconWSP
Location IconLondon

WSP is seeking an Engineer/Senior Mechanical Engineer based in London, specializing in Rail Stations. The successful candidate will have experience in mechanical design, particularly in the Rail environment, and must hold qualifications for Chartersh...Read More>>.

Posted: May 10th, 2026
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Senior Mechanical Engineer - Nuclear Area Integration

Company IconAssystem GmbH
Location IconBridgwater

Our Vacancy# Senior Mechanical Engineer – Nuclear Area Integration* Nuclear* Permanent /* Bridgwater* United Kingdom* 06/05/26* On site* Share **About Assystem** At Assystem, our mission is to accelerate the energy transition worldwide. Today, Ass...Read More>>.

Posted: May 10th, 2026
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Senior Mechanical Engineer – Water & Utilities Leader

Company IconX4 Technology
Location IconBirmingham

X4 Technology is looking for a Principal Mechanical Engineer in Birmingham to deliver high-quality engineering solutions in the Utilities and Water sectors. This senior role demands strong mechanical design expertise, along with leadership and mentor...Read More>>.

Posted: May 12th, 2026
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Principal Mechanical Engineer – Test & Vibration Leadership

Company IconMBDA
Location Icon

MBDA is seeking a Principal Mechanical Engineer in Bolton, United Kingdom. This role entails providing technical leadership in Mechanical, Environmental, & Vibration testing. Responsibilities include developing new test solutions, supporting existing...Read More>>.

Posted: May 13th, 2026
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Senior Mechanical Engineer – Microplastics Filtration (Contract)

Company IconMatter.
Location IconBristol

Matter. is expanding its contractor network and is actively looking for a Senior Mechanical Engineer to contribute to the development of innovative microplastic filter solutions. The position requires full-time commitment at our Bristol facility, foc...Read More>>.

Posted: May 14th, 2026
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Principal Mechanical Engineer — Lead Regulated Systems

Company IconMillbank Holdings
Location IconClifton Hampden

Millbank Holdings is seeking experienced mechanical engineers for various roles, including Principal Mechanical Engineer and Mechanical Engineering Manager. Responsibilities include leading projects from development to commissioning, ensuring complia...Read More>>.

Posted: May 15th, 2026
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Lead Mechanical Engineer - Nuclear & Regulated Projects

Company IconMillbank Holdings
Location IconRisley

Millbank Holdings in Risley is looking for a Principal Mechanical Engineer to lead and deliver mechanical engineering studies across multiple project phases. The ideal candidate should be degree qualified in Mechanical Engineering with significant po...Read More>>.

Posted: May 16th, 2026
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Senior Mechanical Engineer — Design & Delivery Leader

Company IconAJP Recruitment
Location IconNewcastle upon Tyne

AJP Recruitment is looking for an experienced Engineering Lead in Newcastle upon Tyne to take ownership of engineering projects, providing technical leadership over a team. You should have over 8 years of relevant engineering experience, ideally with...Read More>>.

Posted: May 17th, 2026
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Senior Mechanical Engineer - Nuclear & Offshore, Hybrid

Company IconASSYSTEM
Location IconBristol

ASSYSTEM is looking for an experienced Mechanical Engineer to join their Fusion and Modular Nuclear Business Unit in England, Bristol. The role involves leading project tasks, delivering engineering solutions, and mentoring junior engineers. Candidat...Read More>>.

Posted: May 17th, 2026
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Data Center Mechanical Engineer, Design and Process

Company IconGOOGLE
Location IconLondon

Minimum qualificationsBachelor's degree in Mechanical or Industrial Engineering, related discipline, or equivalent practical experience.3 years of experience in mission critical facility design and construction environmen...Read More>>.

Posted: May 17th, 2026
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Senior Mechanical Engineer - Robotics & Packaging Design

Company IconBW Packaging
Location IconDoncaster

BW Packaging in Doncaster seeks a Mechanical Engineer to contribute to the design and manufacture of end-of-line packaging solutions. The successful candidate will model and detail engineering components, oversee product integration, and ensure compl...Read More>>.

Posted: May 18th, 2026
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Field Service Mechanical Engineer - Haywards Heath

Company IconPHSGroup
Location IconHaywards Heath

Job Title: Baler and Compactor Field Service Engineer Division: phs Wastekit – Croydon Purpose of Role Service Engineers are responsible for servicing and maintaining recycling equipment on a reactive and scheduled...Read More>>.

Posted: May 18th, 2026
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Senior Mechanical Engineer | Hybrid, Growth & Mentoring

Company IconRGB Recruitment
Location IconBirmingham

RGB Recruitment is looking for a Senior Mechanical Engineer in Birmingham to join a growing multidisciplinary Building Services consultancy. The role involves designing mechanical building services systems and managing projects from concept to comple...Read More>>.

Posted: May 19th, 2026
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Senior Principal Mechanical Engineer, Fusion & Nuclear

Company IconAssystem GmbH
Location IconSunderland

Assystem GmbH in Sunderland is seeking a Senior Principal Mechanical Engineer to join the Fusion and Modular Nuclear Business Unit. You will lead the design of critical systems, ensuring high safety and efficiency within significant nuclear projec...Read More>>.

Posted: May 20th, 2026
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Senior Mechanical Engineer - FMCG Maintenance Lead

Company IconEnvases Group
Location IconBaglan

Envases Group in Baglan is looking for a skilled Maintenance Engineer to oversee scheduled maintenance and assist with machinery breakdowns at their manufacturing facility. This role requires strong problem-solving skills and the ability to supervise...Read More>>.

Posted: May 20th, 2026
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Senior Mechanical Engineer - Rotating Electrical Machines

Company IconGE Vernova
Location IconRugby

GE Vernova in Rugby, England, sucht einen erfahrenen Systems Engineer, der für die Komponentenintegration und die Verwaltung der Produktanforderungen verantwortlich ist. Die Rolle erfordert ausgezeichnete Kommunikationsfähigkeiten sowie die Fähigk...Read More>>.

Posted: May 20th, 2026
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Lead Mechanical Engineer: Rotating Electrical Machines

Company IconGE-Vernova-
Location IconRugby

GE Vernova is seeking a Lead Mechanical Engineer at its Rugby site, specializing in the design of rotating electrical machines. This role involves applying advanced finite element analysis (FEA) and leading the mechanical design lifecycle from requir...Read More>>.

Posted: May 20th, 2026
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Senior Mechanical Engineer - Building Services (Hybrid)

Company IconManpower UK
Location IconCardiff

Manpower UK is seeking a Senior Mechanical Engineer in Cardiff, Wales, responsible for managing client projects and undertaking mechanical specifications. The role offers hybrid work, with responsibilities including client management, site reviews...Read More>>.

Posted: May 21st, 2026
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Field Mechanical Engineer – Wastewater & Renewable Systems

Company IconUnited Utilities
Location IconWigan

United Utilities is seeking a Mechanical Field Service Engineer located in Wigan to deliver maintenance and technical support for mechanical systems. The role involves performing both planned and reactive maintenance, alongside regulatory complian...Read More>>.

Posted: May 21st, 2026
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Mechanical Engineer: Lead Projects & Client Interface

Company IconMOTT MACDONALD
Location IconBelfast

MOTT MACDONALD seeks a leader for its technical team in Belfast, UK, focusing on client interface and project management in the Built Environment sector.The successful candidate will drive collaboration and enhance client relationships whil...Read More>>.

Posted: May 23rd, 2026
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Lead Mechanical Engineer - Hydroelectric Rotating Machinery

Company IconWEG Tech
Location IconRugby

WEG Tech in Rugby seeks a Senior Mechanical Engineer who will be key in designing, manufacturing, and repairing complex machinery. This position focuses on delivering high-quality engineering solutions for hydro generators, promoting growth in ren...Read More>>.

Posted: May 23rd, 2026
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Senior Mechanical Engineer - Water Utilities (Hybrid)

Company IconCOWI A/S
Location IconEast Midlands

A leading engineering consultancy in the UK seeks a Senior Mechanical Engineer to deliver engineering work related to water supply and wastewater infrastructure. The ideal candidate will have a degree in mechanical engineering, chartered status, and...Read More>>.

Posted: May 23rd, 2026
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Client‑Facing Senior MEP Mechanical Engineer

Company IconCalibre Search
Location IconTyseley

Calibre Search is looking for a Senior Mechanical Engineer in Tyseley, UK to support ongoing projects across multiple sectors, notably education. You will manage design and on-site coordination, engaging closely with clients and contractors....Read More>>.

Posted: May 23rd, 2026
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Senior Building Services Mechanical Engineer (Contract)

Company IconCarrington West
Location IconLiverpool

Carrington West is seeking a Senior Mechanical Engineer in Liverpool to work on exciting projects in Building Service Design. The role offers a contract position focused on delivering mechanical design for major construction projects. This is a fa...Read More>>.

Posted: May 23rd, 2026
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Senior Mechanical Engineer – Hybrid & Renewable Projects

Company IconMVI Group
Location IconLeeds

MVI Group is looking for a Senior Mechanical Engineer to join their team in Leeds. In this role, you will design and manage mechanical services for various construction projects while promoting sustainability and innovation.The ideal candid...Read More>>.

Posted: May 24th, 2026
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