21 senior principal mechanical design engineer jobs found in Cardiff

 Senior/Principal Mechanical Design Engineer – South Wales (Building Services) Location: South Wales  Salary: Competitive, depending on experience + package Job Type: Full-time, permanent I’m working with a well-established and highly respected Building Services Contractor based in South Wales who are currently looking to strengthen their in-house mechanical design team with the addition of a Senior or Principal Mechanical Design Engineer . With a strong pipeline of secured work across a range of sectors – including commercial, education, healthcare, residential, hospitality, and retail – this is an exciting opportunity for someone who wants to step into a role with real responsibility and the backing of an experienced, supportive team. 🏗️ About the Role This is a lead design role within the business. You’ll be responsible for managing mechanical design from early-stage concept through to technical delivery on site. You’ll act as the main point of contact for...

 Senior/Principal Mechanical Design Engineer – South Wales (Building Services) Location: South Wales  Salary: Competitive, depending on experience + package Job Type: Full-time, permanent I’m working with a well-established and highly respected Building Services Contractor based in South Wales who are currently looking to strengthen their in-house mechanical design team with the addition of a Senior or Principal Mechanical Design Engineer . With a strong pipeline of secured work across a range of sectors – including commercial, education, healthcare, residential, hospitality, and retail – this is an exciting opportunity for someone who wants to step into a role with real responsibility and the backing of an experienced, supportive team. 🏗️ About the Role This is a lead design role within the business. You’ll be responsible for managing mechanical design from early-stage concept through to technical delivery on site. You’ll act as the main point of contact for...

 Senior/Principal Mechanical Design Engineer – South Wales (Building Services) Location: South Wales  Salary: Competitive, depending on experience + package Job Type: Full-time, permanent I’m working with a well-established and highly respected Building Services Contractor based in South Wales who are currently looking to strengthen their in-house mechanical design team with the addition of a Senior or Principal Mechanical Design Engineer . With a strong pipeline of secured work across a range of sectors – including commercial, education, healthcare, residential, hospitality, and retail – this is an exciting opportunity for someone who wants to step into a role with real responsibility and the backing of an experienced, supportive team. 🏗️ About the Role This is a lead design role within the business. You’ll be responsible for managing mechanical design from early-stage concept through to technical delivery on site. You’ll act as the main point of contact for...

Senior / Principal Mechanical Engineer Location: Bristol Discipline: Mechanical Building Services An exciting opportunity has arisen for an experienced Mechanical Engineer to join a growing multi-disciplinary building services team. You’ll be part of a dynamic and innovative group delivering projects from early-stage strategy and concept design through to detailed design, construction and post-completion evaluation. This role is ideal for a Senior Engineer ready to step up, or an established Principal Engineer seeking more autonomy, leadership and influence in project delivery and team development. What You’ll Be Doing Lead the design and delivery of mechanical building services systems, including calculations, schematics, specifications, models, equipment schedules and technical documentation. Oversee projects from concept to completion, ensuring technical excellence, innovation and compliance with relevant regulations and standards. Attend and lead design team...

Senior / Principal Mechanical Engineer Location: Bristol Discipline: Mechanical Building Services An exciting opportunity has arisen for an experienced Mechanical Engineer to join a growing multi-disciplinary building services team. You’ll be part of a dynamic and innovative group delivering projects from early-stage strategy and concept design through to detailed design, construction and post-completion evaluation. This role is ideal for a Senior Engineer ready to step up, or an established Principal Engineer seeking more autonomy, leadership and influence in project delivery and team development. What You’ll Be Doing Lead the design and delivery of mechanical building services systems, including calculations, schematics, specifications, models, equipment schedules and technical documentation. Oversee projects from concept to completion, ensuring technical excellence, innovation and compliance with relevant regulations and standards. Attend and lead design team...

Senior / Principal Mechanical Engineer Location: Bristol Discipline: Mechanical Building Services An exciting opportunity has arisen for an experienced Mechanical Engineer to join a growing multi-disciplinary building services team. You’ll be part of a dynamic and innovative group delivering projects from early-stage strategy and concept design through to detailed design, construction and post-completion evaluation. This role is ideal for a Senior Engineer ready to step up, or an established Principal Engineer seeking more autonomy, leadership and influence in project delivery and team development. What You’ll Be Doing Lead the design and delivery of mechanical building services systems, including calculations, schematics, specifications, models, equipment schedules and technical documentation. Oversee projects from concept to completion, ensuring technical excellence, innovation and compliance with relevant regulations and standards. Attend and lead design team...

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...

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. Electrical Senior Design Engineer What you will be doing: As Electrical Senior Design Engineer you will be responsible for all activities associated with the production of Electrical Design in compliance with the Business Management Systems (BMS) and CDM regulations, assisting with the wider general Process, Mechanical, Electrical, Instrumentation, Control and Automation (PMEICA) and Civils design production activities, providing technical support to the supply chain procurement activities and supporting site activities as required. You will also assist with the management of Consultants and Sub-contractors design production.  About You: Have the necessary...

Job Description Start here. Grow here. We are seeking a Principal Cable System Design Engineer to join our expanding Transmission & Distribution (T&D) team within AECOM. This is a senior role within the business, with responsibility for driving technical excellence, leading complex projects, and supporting strategic client engagement across a broad portfolio of high-voltage infrastructure schemes. As a Principal Engineer, you will play a critical role in the planning, design, and delivery of cable systems across multiple voltage levels. Our clients include Transmission System Operators, Distribution Network Operators, private developers , and international energy majors across the UK and globally. You will act as a trusted advisor to clients, and contribute to developing our technical standards, innovation strategy, and digital delivery approach within the cable engineering space. This is a fantastic opportunity to be at the forefront of energy transition,...

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. Mechanical Senior Design Engineer - (Water Sector) Can be based anywhere in the UK What you will be doing: As Senior Design Engineer you will be an important member of the Engineering Design Team and will be required to work with the Principal Engineer(s), Design Team, Design Manager(s) and Design Leads to deliver design to the highest quality to GT process and in compliance with the BMS and H&S Regulations. This is a technical role, engaged directly on projects, which requires competency in technical design delivery in the water and wastewater industry. The Senior Design Engineer can have line management responsibility for design engineers and others as...

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...

Role purpose Are you a seasoned Mechanical Design Engineer with a strong 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 Senior 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. 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 Kick-start or further your career with a team that values growth, collaboration, and real-world impact. 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 waste water companies in England and Wales, we’re seeking a confident, innovative professional to develop your skills on exciting and meaningful projects supporting the design and delivery of complex infrastructure projects. Join our dynamic and growing team as a Junior Mechanical Design Engineer with a passion for engineering sustainable assets that our valued customers are proud to own and operate. In this role, you’ll have the opportunity to work alongside experienced engineers on a diverse range of challenging projects, from innovative treatment systems to infrastructure upgrades. You'll also be supported by and collaborate with a supportive, forward-thinking team of 40+ engineers.   If you're motivated,...

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...

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,...

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.  Senior Structural Design Engineer - Environment (Water) Location: Solihull / Grangemouth (Scotland) / Nottingham (Annesley / Warrington / Bristol /  Other locations may be considered What you will be doing: As Senior Structural Design Engineer you will be an important member of the Engineering Design Team and will be required to work with the Principal Engineer(s), Design Team, Design Manager(s) and Design Leads to deliver design to the highest quality to GT process and in compliance with the BMS and H&S Regulations. This is a technical role, engaged directly on projects, which requires competency in technical design delivery in the water and wastewater...

About the Role To help support Amentum’s worldwide $14B F25 forward looking workload and our portfolio of complex and exciting geotechnical projects within the Defence, Nuclear Power, Environment and Government-Owned Critical Infrastructure industries, we are now looking to grow our Ground Engineering capabilities within the UK and are seeking to recruit Geotechnical Design Engineers at a range of experience levels including: Geotechnical Design Engineer Senior Geotechnical Design Engineer (Chartered or approaching). Principal Geotechnical Design Engineer (Chartered). Associate director Geotechnical Design Engineer (Chartered) We are operating under flexible working arrangements, with a mixture of office-based and home working environments. Bristol office would be the preferred base-office, although other offices, such as Oxford, Reading, London or Glasgow etc can also be considered. As a Ground Engineering Professional within Amentum, you will play a critical role in...

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...

Are you a talented Experienced Civil Design Engineer with a passion for the energy sector? Do you want to deliver sustainable projects that make a difference in the face of unprecedented challenges? 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. We are interested in speaking with Principal Civil Design Engineers with experience in the Energy/Power sector to join us in any of our offices across the UK. This is an exciting opportunity to get involved in a wide variety of projects, across various technical disciplines with clients across country. These projects can include Energy from Waste, Solar, Interconnectors, Windfarms, Substations, OHL, energy building design, protection systems, connections schemes, etc. You would be joining a growing and collaborative team, working in partnership with a variety of clients to...

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 – Process Senior Design Engineer (Drinking Water Biased) Location  – Can Be Based From; Warrington, Nottingham, Plymouth, Grangemouth, Cornwall, Bristol, Rickmansworth, Normanton or Stafford 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...