39 principal mechanical design engineer jobs found in Reading

What you’ll be doing as a Principal Mechanical Design Engineer Set precise technical requirements with Project Definition Briefs for strong project foundations. Refine Technical Asset Standards to enhance process efficiency and effectiveness. Uphold engineering standards in Mechanical Engineering to optimise asset performance. Lead the development of innovative designs for the water and wastewater sectors. Inspire teams on mechanically focused projects, driving meaningful change. Achieve technical sign-off and assurance for seamless project handover. Support the advancement of innovative technologies through research. Hybrid – Clearwater Court, Reading, you will be required to attend the office or site 3-4 days a week. 36 hours a week. This position requires the candidate to have access to a vehicle and a valid driver's license. Additionally, there is a car allowance of £5,800 included. What you should bring to the role To thrive in this role, the essential...

Lead the Future of Water Engineering – Become Our Principal Mechanical Design Engineer. Are you ready to shape the future of water and wastewater infrastructure? As our  Principal Mechanical Design Engineer , you’ll take the lead in driving innovation, setting engineering standards, and mentoring a talented team of professionals. This is more than a technical role — it’s a strategic opportunity to become the ‘Intelligent Client’ at the heart of our AMP8 ambitions and beyond. Your expertise will be pivotal in delivering sustainable, high-performing assets that make a real difference to communities and the environment. What you’ll be doing as a Principal Mechanical Design Engineer Set precise technical requirements with Project Definition Briefs for strong project foundations. Refine Technical Asset Standards to enhance process efficiency and effectiveness. Uphold engineering standards in Mechanical Engineering to optimise asset performance. Lead the development of...

Lead the Future of Water Engineering – Become Our Principal Mechanical Design Engineer. Are you ready to shape the future of water and wastewater infrastructure? As our  Principal Mechanical Design Engineer , you’ll take the lead in driving innovation, setting engineering standards, and mentoring a talented team of professionals. This is more than a technical role — it’s a strategic opportunity to become the ‘Intelligent Client’ at the heart of our AMP8 ambitions and beyond. Your expertise will be pivotal in delivering sustainable, high-performing assets that make a real difference to communities and the environment. What you’ll be doing as a Principal Mechanical Design Engineer Set precise technical requirements with Project Definition Briefs for strong project foundations. Refine Technical Asset Standards to enhance process efficiency and effectiveness. Uphold engineering standards in Mechanical Engineering to optimise asset performance. Lead the development of...

Lead the Future of Water Engineering – Become Our Principal Mechanical Design Engineer. Are you ready to shape the future of water and wastewater infrastructure? As our  Principal Mechanical Design Engineer , you’ll take the lead in driving innovation, setting engineering standards, and mentoring a talented team of professionals. This is more than a technical role — it’s a strategic opportunity to become the ‘Intelligent Client’ at the heart of our AMP8 ambitions and beyond. Your expertise will be pivotal in delivering sustainable, high-performing assets that make a real difference to communities and the environment. What you’ll be doing as a Principal Mechanical Design Engineer Set precise technical requirements with Project Definition Briefs for strong project foundations. Refine Technical Asset Standards to enhance process efficiency and effectiveness. Uphold engineering standards in Mechanical Engineering to optimise asset performance. Lead the development of...

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...

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...

Company Description AFECO is an engineering services provider in the water sector and is part of the United Living Group which includes business that operate in both the water and energy sectors. We work with several major water companies across the UK with a broad portfolio of long-term Frameworks in place that extend throughout AMP8. We have worked with our clients over past AMPs to deliver innovative yet robust projects and are renowned for developing solutions that offer cost effective, low carbon and best value options. AFECO and the wider United Living Infrastructure (Water) Group have a variety of major long-term frameworks across the UK including design and build Frameworks with Southern Water, Severn Trent, Thames Water and United Utilities. These Frameworks focus on the design, construction, refurbishment and improvement of infrastructure and non-infrastructure assets across the water and wastewater sectors and includes structural, civil, mechanical, electrical, ICA...

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...

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. 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...

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 Electrical Design Engineer (Water) We are currently in the market to recruit multiple Principal Electrical 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...

First things first: This position is open to Engineers who have no experience in Data Centres, but if you do then even better! Do you thrive on leading complex electrical designs from concept to completion, ensuring every detail sparks with precision? Can you picture yourself mentoring and inspiring a team of engineers, lighting the path for technical excellence and innovation? Do you see yourself as both a strategist and a hands-on engineer, bridging visionary ideas with practical execution? If this resonates with you, then this could be the next big step in your career journey! The Company This is an award-winning professional building services consultancy, based in London, specialising in mechanical, electrical and environmental engineering. They operate in a number of sectors, however their particular fields of expertise are resilient engineering, mission critical projects and corporate fit out. They have a strong sustainability approach and their reputation has grown over...

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 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...