System EngineerAre you a Systems Engineer looking for an exciting new challenge? We are currently seeking a Systems Engineer on a Permanent basis for our client in Staffordshire. Main Duties:- Provide system engine...Read More>>.

AECOM is seeking a Principal Mechanical Engineer to join the Building Services Design Consultant Engineering team in Croydon. Lead MEP and multi-disciplinary teams on small to large projects and guide the mechanical discipline on major UK, Europea...Read More>>.

Assystem GmbH in Bristol is seeking a Principal Mechanical Engineer to lead engineering activities for Small Modular Reactors and Fusion projects. You will collaborate closely with multi-disciplinary teams, spearheading the delivery of innovative...Read More>>.

Mott MacDonald Bentley in Manchester seeks a Principal Mechanical Engineer to lead mechanical design for water and wastewater projects. You will shape mechanical delivery across the project lifecycle, mentor engineers, and coordinate with electric...Read More>>.

AFRY’s Energy Division in the UK is seeking an experienced engineer to join the Thermal and Renewable Energy team, with offices in London, Oxford, Horsham or Manchester. You will lead technical work across feasibility studies, due diligence, FEE...Read More>>.

Stantec is seeking a Principal Mechanical Engineer for our Water team, based in Newcastle or Leeds. You will lead mechanical design across water and wastewater projects, guiding technical delivery from feasibility to construction while mentoring e...Read More>>.

Hoare Lea in Glasgow is seeking a Principal Mechanical Engineer to lead complex building services designs across Scotland and the UK. You will own delivery from inception to completion, manage internal teams and coordinate with disciplines and ext...Read More>>.

Stantec Consulting International Ltd. is seeking a Principal Mechanical Engineer to lead the technical delivery of mechanical engineering projects within our North West water team.The role focuses on feasibility through commissioning of wat...Read More>>.

MWH Treatment Limited is seeking a Principal Mechanical Engineer to join their team in Bristol with hybrid working options. This role will focus on providing superior quality Engineering Design services in the water industry.The successful...Read More>>.

Role descriptionWe're hiring for multiple Principal Mechanical Design Engineer roles on exciting upcoming projects and programmes for AMP8, and be part of a team driving innovation and excellence. You'll play a key role as a leader wit...Read More>>.

Mott MacDonald Bentley is recruiting a Principal Mechanical Engineer to join the Anglian Water @One Alliance. You will lead mechanical design across major projects, drive safe and efficient delivery, and mentor junior engineers to build a culture...Read More>>.

Harley Haddow in Glasgow is seeking a Principal Mechanical Engineer to lead and deliver the Mechanical Services design on major projects from concept to completion. You will manage project teams, supervise junior engineers and ensure high quality...Read More>>.

Stantec is expanding its Midlands Mechanical Engineering team and seeks a Principal Mechanical Engineer to lead technically challenging projects across water and wastewater programmes. The role offers ownership from feasibility through to commissi...Read More>>.

Stantec is seeking Principal and Senior Principal Mechanical Engineers to shape the future of UK water. You will lead technical delivery, influence project strategy and build trusted client relationships across multiple locations including Derby,...Read More>>.

Stantec is seeking Principal and Senior Principal Mechanical Engineers to contribute to AMP8 projects in the UK water sector. Join a multidisciplinary team and provide technical leadership, ownership and strategic direction.You will shape e...Read More>>.

Stantec is seeking experienced Principal or Senior Principal Mechanical Engineers to lead technical delivery and own project outcomes in the UK water sector. Join a multidisciplinary team helping to shape resilient infrastructure and drive enginee...Read More>>.

Stantec is seeking Principal and Senior Principal Mechanical Engineers with a strong background in the UK water sector to lead technical delivery on major programmes. You will influence project strategy, build trusted client relationships and shap...Read More>>.

WSP Bristol is seeking an Associate Director level professional to lead and deliver mechanical, electrical and public health projects. You will work in a joint leadership capacity within a diverse team, providing design and technical advice across...Read More>>.

Stantec in the UK is seeking experienced Principal and Senior Principal Mechanical Engineers with a strong water sector background to lead technical delivery and shape engineering solutions. You will develop client relationships, influence project...Read More>>.

Stantec is seeking experienced Principal and Senior Principal Mechanical Engineers to lead technical delivery across UK water sector projects. You will own technical direction, influence project strategy and build trusted client relationships whil...Read More>>.

NES Fircroft is seeking a Responsible Mechanical Engineer for a permanent Teesside-based role. You will hold technical authority across mechanical integrity, pressure systems, and regulatory compliance within a major Teesside industrial operation....Read More>>.

Stantec is seeking a Senior Principal Mechanical Engineer to provide strategic leadership across our Midlands Mechanical Engineering team, based in Birmingham, Redditch or Derby. You will guide projects through feasibility, design and delivery, ac...Read More>>.

Stantec is seeking a Senior Principal Mechanical Engineer to join the North West Water team in Manchester or Warrington. You will provide technical leadership across the full lifecycle, act as the technical authority for complex mechanical solutio...Read More>>.

The North West is at the heart of one of the UK's largest programmes of water infrastructure investment, and Stantec is playing a leading role in delivering it. Through our long-standing partnerships with clients including United Utilities, we'...Read More>>.

Bryden Wood is seeking experienced Principal Mechanical Engineers to lead on high-profile data centre and infrastructure projects across London, St Albans and beyond. You will collaborate with architects, engineers and clients to deliver innovativ...Read More>>.

JAM in Portsmouth seeks a Principal Thermal Mechanical Engineer to lead the mechanical engineering aspects of new radar technologies. You will provide expert thermal mechanical knowledge across design, build, integration and test of complex system...Read More>>.

Rullion Ltd in Bristol seeks a Mechanical Engineer (IIA Design Reviewer) on a contract basis with immediate start. The role reviews piping and pressure-related design documentation to ensure regulatory and safety compliance, working closely with e...Read More>>.

Sustainable Talent in Warrington is seeking a Lead Mechanical Engineer to lead mechanical packages from concept through commissioning on major natural gas and energy projects across the UK.The role requires a strong background in AGIs, gas...Read More>>.

Arcadis is seeking a Principal Mechanical Engineer to join our Places Design Practice. You will lead mechanical design on large projects, working with other design disciplines to integrate the overall solution and present complex technical concept...Read More>>.

Kinectrics Inc. is seeking a Senior Mechanical Engineer to lead the design, fabrication, testing and commissioning of nuclear equipment and systems. You will act as the technical lead for mechanical scopes, oversee supplier engagement, and verify...Read More>>.

OLIX is seeking an engineer to own the mechanical architecture of photonic subassemblies, including waveguide coupling structures, laser source packaging, and precision alignment fixtures. You will work across CAD to cleanroom, release drawings, s...Read More>>.

Assystem is seeking a Senior Principal Mechanical Engineer to join its Fusion and Modular Nuclear unit in the UK. You will lead designs for cooling water systems and related reactor components, driving DFMEA/HAZID activities and managing interface...Read More>>.

Stantec is seeking Senior Principal / Associate-level Mechanical Engineers for the UK Water sector in a role that blends technical leadership with strategic client engagement.Based in the Warrington area, you will lead complex water infrast...Read More>>.

WSP seeks a Principal Mechanical Engineer to lead the delivery of large-measured projects within the ME P discipline for the Heathrow team. The role emphasizes technical leadership, client liaison and delivering on time and budget.You will...Read More>>.

Venture Global LNG seeks a Senior Engineer, Mechanical - Fixed Equipment & Piping Integrity to lead integrity programs for fixed equipment, piping, and related systems. You will apply RBI/FFS methods, interpret inspection data, and guide engineeri...Read More>>.

Stantec is seeking Senior Principal / Associate-level Mechanical Engineers to join our Water team in the UK. You will lead technical delivery on complex water projects, shaping engineering solutions and strategy, while nurturing trusted client rel...Read More>>.

Millbank Holdings is seeking a Senior Mechanical Engineer (design) in St Asaph, North Wales, to lead mechanical design for clean water and wastewater infrastructure across the UK. The role focuses on concept through to handover, delivering facilit...Read More>>.

Carrington West is seeking a Principal Mechanical Building Services Engineer in Bristol. Hybrid working available.You will lead the design and delivery of intricate HVAC and public health systems, acting as the technical authority across de...Read More>>.

Arup is recruiting Mechanical Building Services summer students to join our established Buildings teams across the UK. This 6-week internship offers hands-on experience in building design and sustainability, with the chance to contribute to real c...Read More>>.

This is a senior technical leadership role based in THE CLIENT COMPANY's London office, responsible for the delivery of complex, mission-critical mechanical engineering design across data centres and high-performance facilities in the UK and inter...Read More>>.

Burns & McDonnell in London is seeking a Principal Mechanical Engineer to lead high‑tech building design and construction projects, initially data centres and telecom facilities. You will manage multidisciplinary teams, coordinate with clients,...Read More>>.

Associate/Principal Mechanical Engineer - Data Centres You will be involved in some of the UK’s most innovative and intricate Datacentre projects. As our new Associate/Principal Mechanical Engineer, you will be working as part of a team...Read More>>.

Stantec Inc. is seeking Senior Principal / Associate-level Mechanical Engineers for the UK Water sector, based in Southampton or other UK locations.The role focuses on leading technical delivery, shaping engineering solutions, and developin...Read More>>.

Matchtech is seeking a Principal Thermal Mechanical Engineer for a contract in Cowes. The role focuses on thermal engineering and mechanical design within complex defence projects, with hybrid working and two to three days on site.You will...Read More>>.

Sellick Partnership is seeking a Mechanical Lead in Manchester to take charge of on-site mechanical services, oversee planned and reactive maintenance, and ensure reliable operation of critical building systems.You will lead the site engine...Read More>>.

AtkinsRéalis UK Limited is seeking an Associate or Associate Director Mechanical Engineer to lead the delivery of major water infrastructure projects across the UK. You will head multidisciplinary mechanical teams, provide technical leadership, a...Read More>>.

Pareto FM is seeking a Mobile Maintenance Engineer with a mechanical bias to cover sites across Heathrow, Reading and the M25 corridor. You’ll perform planned and reactive maintenance, fault finding and support HVAC and mechanical plant with ind...Read More>>.

Morson Edge in the United Kingdom is seeking a Principal Engineer - Mechanical Engineer (Platform Systems) for a submarine programme. The contract runs for 12 months, paying £67.47 per hour Umbrella - inside IR35, with 2 days on site every 2 week...Read More>>.

Ramboll’s UK Healthcare team seeks an Associate Mechanical Engineer to lead mechanical design for hospital and healthcare projects in the UK and internationally. You’ll drive low‑carbon building services, deliver BIM workflows, and act as a...Read More>>.

Are you an experienced Mechanical Engineer looking for a role where you can combine technical expertise, hands-on engineering and client-facing responsibility?We are recruiting on behalf of a well-established engineering business for an experie...Read More>>.