68 senior principal mechanical design engineer jobs found in Cardiff

Senior / Principal Mechanical Design Engineer – Building Services 📍 Location: South Wales | 💰 Salary: Competitive + Package 📅 Job Type: Full-time, Permanent Lead Mechanical Design, Mentor Talent, and Deliver High-Quality Projects A well-established and highly respected Building Services Contractor in South Wales is seeking a Senior / Principal Mechanical Design Engineer to strengthen their in-house mechanical design team. With a strong pipeline of projects across commercial, education, healthcare, residential, hospitality, and retail sectors, this is an exciting opportunity to take a leadership role with real responsibility. You’ll join a supportive team delivering technically challenging and rewarding projects, from multimillion-pound new builds to complex refurbishments, while having the chance to mentor junior engineers and shape the future of the department. Key Responsibilities Lead mechanical design on projects from concept through to completion Attend...

Senior / Principal Mechanical Design Engineer – Building Services 📍 Location: South Wales | 💰 Salary: Competitive + Package 📅 Job Type: Full-time, Permanent Lead Mechanical Design, Mentor Talent, and Deliver High-Quality Projects A well-established and highly respected Building Services Contractor in South Wales is seeking a Senior / Principal Mechanical Design Engineer to strengthen their in-house mechanical design team. With a strong pipeline of projects across commercial, education, healthcare, residential, hospitality, and retail sectors, this is an exciting opportunity to take a leadership role with real responsibility. You’ll join a supportive team delivering technically challenging and rewarding projects, from multimillion-pound new builds to complex refurbishments, while having the chance to mentor junior engineers and shape the future of the department. Key Responsibilities Lead mechanical design on projects from concept through to completion Attend...

Senior / Principal Mechanical Design Engineer Location: Oxford | Sectors: Low Carbon, Heritage, Education, Healthcare Employment Type: Full-Time Overview We are seeking a Senior / Principal Mechanical Design Engineer to join a well-established, independent building services consultancy in Oxford. This is a senior role offering the opportunity to lead mechanical design projects, influence sustainable strategies, and mentor junior engineers across heritage, education, healthcare, and commercial sectors. The Senior / Principal Mechanical Design Engineer will work on technically complex, low-carbon projects, delivering HVAC, hot/cold water, and energy-efficient solutions from RIBA Stage 2 through to handover. Key Responsibilities Lead mechanical design of building services systems, including HVAC, hot/cold water, and sustainable strategies Oversee production of technical documentation, drawings (AutoCAD/Revit), and specifications Collaborate with clients, architects, and...

Senior / Principal Mechanical Design Engineer Location: Oxford | Sectors: Low Carbon, Heritage, Education, Healthcare Employment Type: Full-Time Overview We are seeking a Senior / Principal Mechanical Design Engineer to join a well-established, independent building services consultancy in Oxford. This is a senior role offering the opportunity to lead mechanical design projects, influence sustainable strategies, and mentor junior engineers across heritage, education, healthcare, and commercial sectors. The Senior / Principal Mechanical Design Engineer will work on technically complex, low-carbon projects, delivering HVAC, hot/cold water, and energy-efficient solutions from RIBA Stage 2 through to handover. Key Responsibilities Lead mechanical design of building services systems, including HVAC, hot/cold water, and sustainable strategies Oversee production of technical documentation, drawings (AutoCAD/Revit), and specifications Collaborate with clients, architects, and...

Job Description Are you a Mechanical Design Engineer who thrives on leading the way on solving difficult engineering problems? Are you drawn to complex projects and excited by the opportunity to rapidly progress your technical leadership skills to the next level, heading up multi-disciplinary projects? If so, you might enjoy solving the energy industry’s most important mechanical engineering conundrums for a multitude of energy systems across a variety of clients. You could be Managing exciting projects designing test rigs in support of the development of the UKs nuclear fusion capabilities, carrying out structural integrity assessment of primary plant (for both civil and defence applications) to keep existing fleet generating, designing high integrity structures for new nuclear establishments, or leading one of many renewable energy projects across a growing carbon net zero portfolio. You’re likely to be juggling several projects simultaneously, so enjoying...

Overview Stirling Dynamics is recruiting Principal and Senior Electronics Hardware Design Engineer to join the Software & Electronic Hardware team. Due to recent contract wins and supporting continued growth, Stirling Dynamics are looking for a talented and experienced electronics design engineer to join our team to work with us delivering complex electronic based solution for electro-mechanical products, projects, and services to the world's leading Aerospace & Defence companies. This role is to fill a position in the dynamic multi discipline team developing electro-mechanical based systems for Electric Vertical Take Off and Landing Aircraft (EVTOL). This role will be based in our Bristol office with occasional travel to our clients’ sites as required however as part of our commitment to flexible working, employees are able to work a hybrid working model. Responsibilities The successful candidate will be responsible for producing...

Company Description Work with Us. Change the World. At AECOM, we’re delivering a better world.Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world’s trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of nearly 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. We’re one global team driven by our common purpose to deliver a better world. Join us. Job Description...

The UK&I energy sector is undergoing a seismic shift. Surging demand, stricter regulations, and ambitious net-zero goals are driving groundbreaking innovation. Here's your chance to be at the heart of it all. Are you a passionate experienced Electrical Engineer with experience of working with HV and EHV voltages with experience of working with UK requirements/regulations? We are looking to recruit experienced Electrical Design Engineers at varying level of seniority from Experienced (ideally Chartered), to Senior, Principal and Senior Principal levels) to join the team across the UK. You will have the opportunity to get involved in wide range of projects including energy from waste, solar, interconnectors, windfarms, substations, OHL, energy building design, protection systems, LVAC, pump stations, etc. For more info on our projects, hear what our team have to say here . As a Principal/Senior Electrical Engineer, you will play a key role in all aspects of projects, from...

Role purpose Are you a Mechanical Design Engineer with a background in the water and wastewater sector? Due to continued success building on our existing framework agreements and a confident growth plan in AMP 8 and AMP 9, across all 10 major water and wastewater companies in England and Wales, we’re seeking a confident, innovative professional to lead the design and delivery of complex infrastructure projects. Join our dynamic and growing team as a Mechanical Design Engineer with a passion for engineering sustainable assets which our valued customers are proud to own and operate. Role is available in our Midsomer Norton Office (Head Office), or Newport office or our Swansea office. In this role, you’ll have the opportunity to work on a diverse range of challenging projects, from innovative treatment systems to infrastructure upgrades, all while collaborating with a supportive, forward-thinking team of 40+ engineers.  Your expertise will shape sustainable engineering...

Role purpose Are you a Mechanical Design Engineer with a background in the water and wastewater sector? Due to continued success building on our existing framework agreements and a confident growth plan in AMP 8 and AMP 9, across all 10 major water and wastewater companies in England and Wales, we’re seeking a confident, innovative professional to lead the design and delivery of complex infrastructure projects. Join our dynamic and growing team as a Mechanical Design Engineer with a passion for engineering sustainable assets which our valued customers are proud to own and operate. Role is available in our Midsomer Norton Office (Head Office), or Newport office or our Swansea office. In this role, you’ll have the opportunity to work on a diverse range of challenging projects, from innovative treatment systems to infrastructure upgrades, all while collaborating with a supportive, forward-thinking team of 40+ engineers.  Your expertise will shape sustainable engineering...

Job Title: Principal Electrical Design Engineer Location: Oxford Salary: Up to £65,000 (Negotiable)  Shift Type: Full Time – 36.25 hours per week (Agile Working) Benefits: Enhanced annual leave (buy/sell), enhanced family pay, EAP, EV scheme, cycle to work, referral bonus, structured career progression The Opportunity A leading, multi-disciplinary Building Services consultancy is seeking a Principal Design Engineer - Electrical to join its established Oxford team. This is a key hire within a forward-thinking organisation known for delivering technically robust and sustainable design solutions across healthcare, education, residential, commercial, industrial and public sector developments. Operating internationally with a strong UK presence, the business places sustainability and net-zero carbon design at the core of its engineering philosophy. The Role As Principal Electrical Engineer, you will take ownership of projects from inception through to...

Job Title: Principal Electrical Design Engineer Location: Oxford Salary: Up to £65,000 (Negotiable)  Shift Type: Full Time – 36.25 hours per week (Agile Working) Benefits: Enhanced annual leave (buy/sell), enhanced family pay, EAP, EV scheme, cycle to work, referral bonus, structured career progression The Opportunity A leading, multi-disciplinary Building Services consultancy is seeking a Principal Design Engineer - Electrical to join its established Oxford team. This is a key hire within a forward-thinking organisation known for delivering technically robust and sustainable design solutions across healthcare, education, residential, commercial, industrial and public sector developments. Operating internationally with a strong UK presence, the business places sustainability and net-zero carbon design at the core of its engineering philosophy. The Role As Principal Electrical Engineer, you will take ownership of projects from inception through to...

Senior / Principal Electrical Design Engineer – Building Services Location: Southampton | Hybrid Working | Full-Time Salary: Highly Competitive + Bonus + Excellent Benefits About the Role We are seeking a Senior / Principal Electrical Design Engineer to join a respected and growing M&E consultancy in Southampton. This is a hands-on, leadership-focused role, ideal for an engineer ready to take ownership of complex building services projects across healthcare, education, research, commercial, and industrial sectors. As a Senior / Principal Electrical Design Engineer , you’ll oversee technical delivery, mentor junior engineers, and engage directly with clients, ensuring sustainable, low-carbon electrical solutions are delivered to the highest standards. Key Responsibilities Lead electrical design packages on medium to large-scale projects, from concept through to construction and handover Oversee technical quality and compliance with UK regulations, BS 7671, and...

Senior / Principal Electrical Design Engineer – Building Services Location: Southampton | Hybrid Working | Full-Time Salary: Highly Competitive + Bonus + Excellent Benefits About the Role We are seeking a Senior / Principal Electrical Design Engineer to join a respected and growing M&E consultancy in Southampton. This is a hands-on, leadership-focused role, ideal for an engineer ready to take ownership of complex building services projects across healthcare, education, research, commercial, and industrial sectors. As a Senior / Principal Electrical Design Engineer , you’ll oversee technical delivery, mentor junior engineers, and engage directly with clients, ensuring sustainable, low-carbon electrical solutions are delivered to the highest standards. Key Responsibilities Lead electrical design packages on medium to large-scale projects, from concept through to construction and handover Oversee technical quality and compliance with UK regulations, BS 7671, and...

The UK&I energy sector is undergoing a seismic shift. Surging demand, stricter regulations, and ambitious net-zero goals are driving groundbreaking innovation. Here's your chance to be at the heart of it all. Are you a passionate experienced Electrical Engineer with experience of working with HV and EHV voltages with experience of working with UK requirements/regulations? We are looking to recruit experienced Electrical Design Engineers at varying level of seniority from Experienced (ideally Chartered), to Senior, Principal and Senior Principal levels) to join the team across the UK. You will have the opportunity to get involved in wide range of projects including energy from waste, solar, interconnectors, windfarms, substations, OHL, energy building design, protection systems, LVAC, pump stations, etc. For more info on our projects, hear what our team have to say here . As a Principal/Senior Electrical Engineer, you will play a key role in all aspects of projects, from...

Senior Mechanical Design Engineer (Water) We are currently in the market to recruit multiple Senior Mechanical Design Engineers (Water) for a variety of major long-term frameworks across the UK. In addition to a range of long-term programmes across the UK water industry RPS, and Tetra Tech, have successfully won a £100 million single-award framework from United Utilities to support the improvement of river health across the Northwest of England. RPS has been working with United Utilities for over 20 years on innovative projects. As we move towards AMP8, this is an exciting time to be working in the water industry, and collaborating with passionate organisations, gives our people the opportunity to create positive change. Under this 10-year framework, RPS will drive program optimisation, develop solutions, and select the preferred options based on best value, lowest carbon, and cost. Our mission is to deliver exceptional water services to foster a...

Senior / Principal Electrical Design Engineers (Building Services) RPS is currently seeking  Senior  or a  Principal level Electrical Design Engineer  (Building Services) to join either the team in our  Manchester, Leeds, Birmingham  or  Newcastle  office on a  hybrid basis .  About The Design Business: RPS Design Division delivers projects across multiple, niche sectors from residential housing developments, logistics, retail, aviation, healthcare, education, advanced manufacturing, data centres, energy and more as we strive to achieve the right balance between form and function when faced with competing priorities around sustainability, materiality, cost and constructability. Digitalisation is at the core of our delivery model allowing our clients and their stakeholders to really experience our designs right from project concept stage and through drawing on expertise spanning decades, industries and disciplines, we assist clients to harmonise design drivers...

Job Description The UK Energy market is undergoing unprecedented change as the country strives towards a net zero carbon target. The sector must contend with high penetration of modern generation, transmission and distribution technologies, energy storage and prepare for the increased demand associated with the electrification of transport and heat as the countries progresses along the decarbonisation pathway. As part of the Net Zero agenda, networks have a crucial role in delivering the renewable energy which is required to be connected. The transmission network operators have secured c.£8bn as part of the RIIO T2 package. This is an opportunity to work at the forefront of the energy sector, to deliver outstanding projects and be part of the solution to delivering Net Zero. We empower our people to be the professional individuals they want to be, working on projects they feel proud of, making a difference to the world they live in and the legacy they leave behind....

Principal Mechanical Design Engineer (Water) We are currently in the market to recruit multiple Principal Mechanical Design Engineers (Water) for a variety of major long-term frameworks across the UK. In addition to a range of long-term programmes across the UK water industry RPS, and Tetra Tech, have successfully won a £100 million single-award framework from United Utilities to support the improvement of river health across the Northwest of England. RPS has been working with United Utilities for over 20 years on innovative projects. As we move towards AMP8, this is an exciting time to be working in the water industry, and collaborating with passionate organisations, gives our people the opportunity to create positive change. Under this 10-year framework, RPS will drive program optimisation, develop solutions, and select the preferred options based on best value, lowest carbon, and cost. Our mission is to deliver exceptional water services to...

Senior Electrical Design Engineer - (Wastewater Treatment Projects) About Us:   Glanua is an industry leader in providing innovative and sustainable engineering solutions to design, build, operate and maintain critical water and wastewater infrastructure across Ireland and the UK. We are a trusted provider to the municipal and industrial sector where our clients include Ireland and the UK's largest water utilities, Uisce Eireann (formally Irish Water), Thames Water, Yorkshire Water Affinity Water, Northumbrian Water and United Utilities. Glanua is passionate about solving today's environmental challenges and delivering a decarbonised and sustainable world. We know that to build successful creative teams we need a diverse workforce that can deliver new innovative ways of thinking. We provide an environment where you will have the freedom to develop and grow to your full potential. We champion our core values and uphold the highest standards of Safety and...