72 senior principal mechanical design engineer jobs found in Southampton

 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 to Principal Mechanical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Benefits About the Role A leading independent building services consultancy on the South Coast is seeking a Senior to Principal Mechanical Design Engineer to join their growing team in Southampton. Known for their technical strength, sustainable approach, and long-term client relationships, this firm delivers a broad range of projects across the healthcare, education, research, commercial, and industrial sectors. This role is ideal for an experienced engineer ready to lead projects, manage teams, and play an integral part in delivering innovative and low-carbon mechanical building services solutions. What You’ll Be Doing Lead mechanical design on a range of complex projects, from early-stage feasibility to technical delivery and handover Take ownership of project outputs including reports, calculations, technical...

Senior to Principal Mechanical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Benefits About the Role A leading independent building services consultancy on the South Coast is seeking a Senior to Principal Mechanical Design Engineer to join their growing team in Southampton. Known for their technical strength, sustainable approach, and long-term client relationships, this firm delivers a broad range of projects across the healthcare, education, research, commercial, and industrial sectors. This role is ideal for an experienced engineer ready to lead projects, manage teams, and play an integral part in delivering innovative and low-carbon mechanical building services solutions. What You’ll Be Doing Lead mechanical design on a range of complex projects, from early-stage feasibility to technical delivery and handover Take ownership of project outputs including reports, calculations, technical...

Senior to Principal Mechanical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Benefits About the Role A leading independent building services consultancy on the South Coast is seeking a Senior to Principal Mechanical Design Engineer to join their growing team in Southampton. Known for their technical strength, sustainable approach, and long-term client relationships, this firm delivers a broad range of projects across the healthcare, education, research, commercial, and industrial sectors. This role is ideal for an experienced engineer ready to lead projects, manage teams, and play an integral part in delivering innovative and low-carbon mechanical building services solutions. What You’ll Be Doing Lead mechanical design on a range of complex projects, from early-stage feasibility to technical delivery and handover Take ownership of project outputs including reports, calculations, technical...

Senior to Principal Mechanical Design Engineer Location: Oxford | Sectors: Low Carbon, Heritage, Education, Healthcare About the Company Join a well-established, independent building services consultancy in Oxford, known for delivering sustainable, technically robust solutions across heritage refurbishments, modern low-energy campuses, and complex infrastructure projects. Our integrated team combines mechanical, electrical, lighting, Passivhaus, and building physics expertise under one roof. With a strong pipeline of work and investment in people, this role offers long-term progression and a chance to shape meaningful projects. The Role As a Senior or Principal Mechanical Engineer, you will: Lead mechanical design from RIBA Stage 2 to handover: HVAC, hot/cold water, and sustainable strategies. Collaborate with clients, architects, and internal teams to create energy-efficient, technically sound solutions. Apply building physics and performance analysis where...

Senior to Principal Mechanical Design Engineer Location: Oxford | Sectors: Low Carbon, Heritage, Education, Healthcare About the Company Join a well-established, independent building services consultancy in Oxford, known for delivering sustainable, technically robust solutions across heritage refurbishments, modern low-energy campuses, and complex infrastructure projects. Our integrated team combines mechanical, electrical, lighting, Passivhaus, and building physics expertise under one roof. With a strong pipeline of work and investment in people, this role offers long-term progression and a chance to shape meaningful projects. The Role As a Senior or Principal Mechanical Engineer, you will: Lead mechanical design from RIBA Stage 2 to handover: HVAC, hot/cold water, and sustainable strategies. Collaborate with clients, architects, and internal teams to create energy-efficient, technically sound solutions. Apply building physics and performance analysis where...

Senior to Principal Mechanical Design Engineer Location: Oxford | Sectors: Low Carbon, Heritage, Education, Healthcare About the Company Join a well-established, independent building services consultancy in Oxford, known for delivering sustainable, technically robust solutions across heritage refurbishments, modern low-energy campuses, and complex infrastructure projects. Our integrated team combines mechanical, electrical, lighting, Passivhaus, and building physics expertise under one roof. With a strong pipeline of work and investment in people, this role offers long-term progression and a chance to shape meaningful projects. The Role As a Senior or Principal Mechanical Engineer, you will: Lead mechanical design from RIBA Stage 2 to handover: HVAC, hot/cold water, and sustainable strategies. Collaborate with clients, architects, and internal teams to create energy-efficient, technically sound solutions. Apply building physics and performance analysis where...

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...

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...

We are looking to strengthen our engineering team with a Senior Mechanical Engineer based at Brighton with hybrid working available.  You will report directly to the Principal Engineer and your role will be to provide superior quality Engineering Design services to allow the company to minimise risks and maximise profits on turnkey and engineering services contracts. You will co-ordinate the design and produce design documents and drawings taking due account of health and safety requirements, specifications and standards pertaining to the contract. Key responsibilities will include: Produce design layouts which are cost effective, meet the requirements of the specification and which can be constructed and commissioned effectively. The term ‘cost’ is to embrace all costs associated with the design and the subsequent construction of the design. To be cost effective the whole out turn cost of the design solution must be considered including design time costs, material costs,...

Senior to Principal Electrical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Excellent Benefits About the Role A well-established, independent M&E consultancy with a strong regional presence is looking for an experienced Senior to Principal Electrical Design Engineer to join their growing Southampton office. This role is ideal for someone looking to step into more technical leadership, project ownership, and client-facing responsibilities. You’ll be involved in the delivery of complex, sustainable building services projects across healthcare, education, research, commercial, and industrial sectors. What You’ll Be Doing Lead electrical design packages on medium to large-scale projects, from early concept to construction and handover Oversee the technical quality of design outputs, ensuring compliance with current legislation and client expectations Mentor and manage junior and...

Senior to Principal Electrical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Excellent Benefits About the Role A well-established, independent M&E consultancy with a strong regional presence is looking for an experienced Senior to Principal Electrical Design Engineer to join their growing Southampton office. This role is ideal for someone looking to step into more technical leadership, project ownership, and client-facing responsibilities. You’ll be involved in the delivery of complex, sustainable building services projects across healthcare, education, research, commercial, and industrial sectors. What You’ll Be Doing Lead electrical design packages on medium to large-scale projects, from early concept to construction and handover Oversee the technical quality of design outputs, ensuring compliance with current legislation and client expectations Mentor and manage junior and...

Senior to Principal Electrical Design Engineer – Building Services 📍 Southampton (Hybrid Working) 💼 Full-Time 💰 Highly Competitive Salary + Bonus + Excellent Benefits About the Role A well-established, independent M&E consultancy with a strong regional presence is looking for an experienced Senior to Principal Electrical Design Engineer to join their growing Southampton office. This role is ideal for someone looking to step into more technical leadership, project ownership, and client-facing responsibilities. You’ll be involved in the delivery of complex, sustainable building services projects across healthcare, education, research, commercial, and industrial sectors. What You’ll Be Doing Lead electrical design packages on medium to large-scale projects, from early concept to construction and handover Oversee the technical quality of design outputs, ensuring compliance with current legislation and client expectations Mentor and manage junior and...

Principle 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 Well-being,...

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...