23 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...

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...

Joining Arup Arup undertakes transmission and distribution design projects across the globe. In the UK we deliver concept through to detail design for a wide range of clients including established asset owners and new market entrants (interconnectors, private wire schemes etc). As an example, Arup recently formed a joint venture with AECOM to serve as the design and consenting service partner for the UK National Grid’s Great Grid Partnership. Over a period of 8–12 years, Arup will help deliver key aspects of the transmission grid transformation, ensuring a resilient, low-carbon energy network for the future. This is the UK’s major grid modernisation programme, set to deliver five times more electricity infrastructure than has been built in the past three decades. These projects, part of the Accelerated Strategic Transmission Investment (ASTI) framework, will enhance the country’s energy backbone, supporting planned renewable developments such as wind farms in the North Sea and...

Joining Arup   Arup undertakes transmission and distribution design projects across the globe. In the UK we deliver concept through to detail design for a wide range of clients including established asset owners and new market entrants (interconnectors, private wire schemes etc).  As an example, Arup recently formed a joint venture with Aecom to serve as the design and consenting service partner for the UK National Grid’s Great Grid Partnership. Over a period of 8–12 years, Arup will help deliver key aspects of the transmission grid transformation, ensuring a resilient, low-carbon energy network for the future. This is the UK’s major grid modernisation programme, set to deliver five times more electricity infrastructure than has been built in the past three decades. These projects, part of the Accelerated Strategic Transmission Investment (ASTI) framework, will enhance the country’s energy backbone, supporting planned renewable developments such as wind farms in the North Sea...

Company Description General Dynamics Mission Systems engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of more than 13,000 top professionals, we partner with the best in industry to expand the bounds of innovation in the defence and scientific arenas. In the UK, we are leading the way in avionics and communication systems. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. Job Description As a Principal Systems Design Engineer , you will be a key engineering lead shaping the architecture and design of advanced C4I systems for critical defence programmes. This role seeks leadership elements for an experienced systems engineer who thrives on solving complex challenges, influencing strategy, and mentoring others. You will drive innovation, ensure technical excellence, and deliver integrated...

Note for Recruitment Agencies: We prefer to hire directly and we will be in touch with our PSL Agencies if this role is eligible for release. We do not accept speculative CVs from agencies. If speculative CVs are sent, no fee will be applicable – please direct all queries to the relevant Resourcing Partner. Job Title: Electrical Principal Design Engineer Location: UK Wide Division: Infrastructure – Environment Reports to: Design Delivery Manager About Us Galliford Try is one of the UK’s leading construction businesses, delivering vital infrastructure that creates lasting value for communities. As a FTSE organisation employing over , people, we offer long-term stability, technically challenging projects and genuine career development across our Infrastructure, Building and Specialist Services divisions. Our Infrastructure – Environment Business Following several strategic acquisitions, we are now the largest Tier contractor operating in the UK Water and...

Joining Arup Arup undertakes transmission and distribution design projects across the globe. In the UK we deliver concept through to detail design for a wide range of clients including established asset owners and new market entrants (interconnectors, private wire schemes etc). As an example, Arup recently formed a joint venture with AECOM to serve as the design and consenting service partner for the UK National Grid’s Great Grid Partnership. Over a period of 8–12 years, Arup will help deliver key aspects of the transmission grid transformation, ensuring a resilient, low-carbon energy network for the future. This is the UK’s major grid modernisation programme, set to deliver five times more electricity infrastructure than has been built in the past three decades. These projects, part of the Accelerated Strategic Transmission Investment (ASTI) framework, will enhance the country’s energy backbone, supporting planned renewable developments such as wind farms in the North Sea and...

Are you an experienced HV Cable Design Engineer looking for exciting new challenges? Enter our talent pool for future opportunities! The transmission and distribution sector is rapidly transforming against a backdrop of growing demand, regulatory changes, ambitious carbon reduction targets and new innovations in technology. Due to continued growth, we are open to speaking with experienced HV Cable Design Engineers. We are open to exploring future opportunities in line with our growth across ideally Principal/Senior Engineer levels in our Energy Team. This team presents an exciting opportunity to get involved in a wide variety of projects, across various technical disciplines with clients across country. These projects can include HVDC, interconnectors, windfarms, substations, OHL, geotechnical solutions, building design, protection systems, LVAC, FEED, new builds, refurbishment works, connections schemes etc. The role is to work as part of the Cable team on electrical...

Our Team: Join Semtech’s UK Digital R&D team, part of our Signal Integrity Products (SIP) group. Our team develops next-generation mixed-signal optical devices that push the boundaries of high-speed data transmission. We combine expertise in digital and mixed-signal design, verification, and system-level architecture to deliver innovative solutions to challenging industry problems. As part of this highly skilled team, you’ll work in a collaborative, fast-paced environment, contributing directly to product architecture, design implementation, and production success. We value technical curiosity, innovation, and a collaborative mindset that drives both individual and team growth. Job Summary: We are seeking a Principal or Senior Digital IC Design Engineer to take a leading role in the design and verification of advanced digital and mixed-signal optical devices. You will work closely with product definition teams to shape chip architecture, define detailed specifications,...

Job Title – Process Principal Design Engineer (Drinking Water Biased) Location  – Warrington/Annesley/Plymouth/Grangemouth/Rickmansworth / Bristol/Stafford/Normanton/ Indian Queens (The role can be based out of any of these locations) About Us Galliford Try is one of the UK’s most formidable construction businesses with an enviable track record of delivering schemes that strive to provide positive, lasting change for the communities we work in. As a FTSE organisation, we turnover £ billion and employ over people across three very successful Divisions; Building, Infrastructure and Specialist Services. As one of the UK’s top principal contractors you’ll have the opportunity to work on some of the UK’s most exciting projects offering you stability as well as the chance to stretch your capabilities and realise long held career goals. You will be joining diverse teams working at a high professional level with exceptional levels of commitment.  Our Environment Business...

Joining Arup   Arup undertakes transmission and distribution design projects across the globe. In the UK we deliver concept through to detail design for a wide range of clients including established asset owners and new market entrants (interconnectors, private wire schemes etc).  As an example, Arup recently formed a joint venture with Aecom to serve as the design and consenting service partner for the UK National Grid’s Great Grid Partnership. Over a period of 8–12 years, Arup will help deliver key aspects of the transmission grid transformation, ensuring a resilient, low-carbon energy network for the future. This is the UK’s major grid modernisation programme, set to deliver five times more electricity infrastructure than has been built in the past three decades. These projects, part of the Accelerated Strategic Transmission Investment (ASTI) framework, will enhance the country’s energy backbone, supporting planned renewable developments such as wind farms in the North Sea...

Design Engineers – Various Disciplines – Register Your Interest Locations: Warrington Grangemouth Robroyston Bristol Annesley Plymouth Stafford  About the Roles: Galliford Try are seeking Design Engineers at Design, Senior, and Principal levels to join our growing Water Sector team. As we enter AMP, we are looking for individuals to help deliver vital water infrastructure projects across the UK. List of disciplines: Temporary Works Geotechnical Mechanical Civil Structural Process Electrical Design Management Design Lead  You will play a key role in developing and delivering sustainable, efficient, and innovative solutions that support the water industry’s future. From clean water treatment facilities to advanced wastewater systems, you’ll be involved in every stage of design and construction, helping to meet regulatory standards and environmental targets. Our Work in AMP: At Galliford Try, we are proud to be working on key projects for AMP. We are a...

Are you an experienced HV Cable Design Engineer looking for exciting new challenges? Enter our talent pool for future opportunities! The transmission and distribution sector is rapidly transforming against a backdrop of growing demand, regulatory changes, ambitious carbon reduction targets and new innovations in technology. Due to continued growth, we are open to speaking with experienced HV Cable Design Engineers for future opportunities. We are open to exploring future opportunities in line with our growth across ideally Principal/Senior Engineer levels in our Energy Team. This team presents an exciting opportunity to get involved in a wide variety of projects, across various technical disciplines with clients across country. These projects can include HVDC, interconnectors, windfarms, substations, OHL, geotechnical solutions, building design, protection systems, LVAC, FEED, new builds, refurbishment works, connections schemes etc. The role is to work as part of the Cable...

The role This is a unique opportunity to leverage your silicon design skills on cutting-edge technology. At Imagination Technologies, innovation is at the heart of everything we do. We create foundational building blocks for market-leading Graphics Processors, powering the next generation of mobile, smart, and connected technologies. As a Principal GPU HW Design Engineer, you’ll play a crucial role in designing, debugging, and optimising complex hardware modules to achieve superior performance, efficiency, and reliability. You will: Collaborate with design, verification, and validation teams to develop advanced silicon solutions. Prepare detailed microarchitecture design specifications and execution plans aligned with project goals. Perform in-depth analysis and optimization of complex circuits, balancing frequency speed, area, power, and performance. Participate in design reviews, providing insightful recommendations for improvement. Maintain and enhance the design...