Principal Mechanical Engineer - Data Centre & Mission Critical Leeds Hybrid Working 9-Day Fortnight I'm currently working with a leading engineering consultancy that is looking to appoint a Principal Mechanical Engineer to join its growing Data Centre & Mission Critical team in Leeds. This is an excellent opportunity for an experienced mechanical/building services engineer to take a senior technical and project leadership position, working on some of the most complex and technically demanding projects across the UK, Ireland and Europe. The Opportunity You'll take a leading role in the delivery of major Data Centre and Mission Critical projects, overseeing mechanical design from initial concept through to completion. The role offers exposure to a broad range of technically challenging environments, including: Data centres and critical facilities Live plant upgrades Data halls and close-control environments Financial-sector and trading-floor environments...

Principal Mechanical Engineer - London I'm currently working with a well-established built environment consultancy that is looking to bring an experienced Principal Mechanical Engineer into their growing London team. This is a great opportunity for a technically strong engineer who enjoys taking ownership of projects, leading design teams and having a real influence on the direction of projects from concept through to delivery. The Role You'll be responsible for leading mechanical design projects across the full project lifecycle, working closely with multidisciplinary teams, clients, contractors and other key stakeholders. Your responsibilities will include: Leading mechanical design projects from concept through to delivery Managing project scope, resources, programme and technical delivery Reviewing mechanical calculations, designs and CAD models Coordinating multidisciplinary design teams and ensuring technical quality Supporting R&D and introducing...

Location: London Birmingham Manchester Leeds Newcastle Bicester Other UK locations considered Salary: Up to 85,000 + Comprehensive Benefits Package Shape the future of Data Centre engineering.The UK's Data Centre market continues to evolve at an unprecedented pace. As demand grows for resilient, sustainable and technically sophisticated digital infrastructure, leading Building Services Design Consultancies are seeking experienced Principal Mechanical Engineers who can provide technical leadership on some of the industry's most prestigious projects. At Eligo Recruitment , we partner with consultancies delivering hyperscale campuses, co-location facilities, enterprise data centres and mission critical infrastructure for some of the world's largest technology organisations. If you're looking for a position where your technical expertise genuinely influences project success, this could be your next career move. The Opportunity As a Principal Mechanical Engineer, you'll be...

Senior / Principal Mechanical Engineer Birmingham Building Services Consultancy Hybrid Flexibility An exciting opportunity has arisen for a Senior or Principal Mechanical Engineer to join a growing building services consultancy in Birmingham. Established for more than 25 years, this independently owned consultancy delivers mechanical, electrical and building performance engineering solutions across a wide range of sectors, including healthcare, commercial, education, residential, life sciences, leisure and public sector projects. The business has built a strong reputation for technically high-quality, sustainable and low-carbon design, with collaboration, quality and professional development at the heart of its approach. The Birmingham office is entering an exciting period of growth, with ambitious plans to significantly expand the team over the coming years. This is an excellent opportunity for an experienced engineer to play an important role in the development of the...

Are you an experienced Mechanical Building Services Engineer ready to take a leading role in technically challenging projects? Tetra Tech is seeking a Senior / Principal Mechanical Building Services Engineer to join our established Manchester team. This position offers the opportunity to lead multidisciplinary projects across sectors including life sciences, defence, education, commercial, healthcare and renewable energy, delivering high-quality engineering solutions that make a meaningful impact. Purpose & Scope of the Role In this role, you will provide technical leadership and deliver mechanical building services design across a diverse portfolio of projects. You will manage project work from concept through to completion, ensuring designs meet client requirements, programme expectations and regulatory standards. Working within a multidisciplinary environment, you will contribute to the successful delivery of projects by producing high-quality calculations,...

Senior / Principal Mechanical Design Engineer London Hybrid Working Up to 65k About the Company A growing engineering consultancy is looking to appoint a Senior or Principal Mechanical Design Engineer to join its Building Services team. The business delivers engineering expertise across a diverse portfolio of projects throughout the UK, supporting clients across sectors including commercial, defence, public sector, transportation, utilities and infrastructure. With a strong reputation for technical excellence and collaborative working, they provide engineers with the opportunity to work on challenging and high-profile projects while maintaining a healthy work-life balance. The Opportunity This is an excellent opportunity for an experienced Mechanical Design Engineer to join a well-established team delivering innovative and sustainable building services solutions. You'll be involved in projects from concept through to completion, working closely with...

Role Purpose We are seeking an experienced and ambitious Principal Design Engineer to join a growing Building Services consultancy. This is an excellent opportunity for a senior-level engineer looking to lead the design and delivery of complex projects across commercial, residential, healthcare, education, industrial, and mixed-use developments. Responsibilities Lead the design and delivery of building services projects from concept through to completion. Manage multidisciplinary engineering teams and coordinate with architects, contractors, and external stakeholders. Produce and review detailed engineering calculations, specifications, reports, and technical drawings. Provide technical leadership across HVAC, public health, electrical, or mechanical building services disciplines. Ensure compliance with current regulations, British Standards, and industry best practices. Attend client meetings and act as a technical lead throughout project lifecycles. Support...

Principal Thermal Mechanical Engineer Location: Cowes 3/4 days on site Duration : 6 Months - Scope for extension or permanent offer Contract Role - Starting Soon Rate: Hourly rate: £51.86 PAYE / £70 Umbrella Inside IR35 Are you an experienced Mechanical Engineer with a focus on thermal systems? Join BAE Systems Naval Radar as a Principal Thermal Mechanical Engineer , delivering cutting-edge radar solutions to the Royal Navy. This is a fantastic opportunity to bring your expertise to a dynamic team, influence product performance and mentor engineering talent. What you'll do: Conduct peer reviews and verify engineering tasks to ensure compliance with standards Identify and resolve product lifecycle issues, leading change activities to maintain compliance Establish and manage qualification requirements during build, test, and commissioning Serve as a subject matter expert, coaching and mentoring team members Collaborate with electrical, mechanical, and...

Senior/Principal/Mechanical Engineer My client is an engineering design consultancy working closely with a wide range of clients, across a number of disciplines within the UK rail and utilities industries. Full time role from the St Albans Office with occasional site visits for which travel expenses will be paid. Hybrid working possible when required provided agreed in advance. Can be contract (outside IR35) or permanent role. Responsibilities: Provide design deliverables that satisfy safety and quality requirements. Produce design calculations and drawings for the water industry Direct and develop CAD technicians. Prepare scopes for and check output of subcontract M&E design teams Liaise with, prepare specifications for and review tender responses from equipment suppliers and manufacturers Prepare design investigations, reports and specifications. Design in compliance with relevant technical, professional and group standards. Ensure project change for...

Senior / Principal Mechanical Engineer Essex Consultancy Up to 70k Most building services consultancies say they value their senior engineers. This one is built around them. It's a deliberately senior-heavy MEP consultancy where nearly every project has a Director on it and a Senior or Principal engineer does the core design work. Clients pay for that level of expertise, which is why around 90% of them come back and most of the work is won through negotiation rather than tender. The business has grown to three offices across the South East and East of England since it was founded in 2020. Each office runs as its own business, but projects, clients and people move freely between them, so the offices don't compete with each other. The Essex office is looking for a Senior or Principal Mechanical Engineer to join an established team. The Role Leading mechanical design on projects across education, residential, commercial, industrial and a growing healthcare portfolio...

Lead mechanical design for national water programmes Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking multiple Principal Mechanical Design Engineers to lead mechanical design delivery across major, long-term UK water industry frameworks. You will own mechanical design outputs for pumping systems, aeration and process plant equipment from optioneering through detailed design and construction support, producing specifications, P&IDs, schedules, calculations and procurement documentation. Projects include a £100 million, 10-year United Utilities framework and a broad AMP8/AMP9 portfolio. You will coordinate multi-disciplinary teams of engineers, modellers and data analysts, engage clients and supply-chain partners, and provide technical assurance on multi-million-pound capital schemes. Your impact in this position: In the short term you will deliver robust mechanical designs and site survey outputs. Over the medium term you will...

Senior Mechanical Design Engineer Principal Mechanical Design Engineer Mechanical Discipline Lead - Water Location: Manchester (Hybrid Working Available) Contract: Permanent or Contract (Outside IR35) The Opportunity Our client is a growing engineering design consultancy delivering multidisciplinary projects across the UK water, rail and utilities sectors. Due to continued growth, they are looking to recruit experienced Senior Mechanical Design Engineers, Principal Mechanical Design Engineers and Mechanical Discipline Leads to join their Manchester-based team. This is an excellent opportunity for experienced Mechanical Engineers with a background in the UK water industry to play a key role in delivering major clean water and wastewater projects. Depending on your level, you'll combine hands-on engineering design with technical leadership, mentoring and discipline governance, helping to shape engineering excellence across multiple water industry frameworks. Working...

Role Purpose We are seeking an experienced and ambitious Principal Design Engineer to join a growing Building Services consultancy. This is an excellent opportunity for a senior-level engineer looking to lead the design and delivery of complex projects across commercial, residential, healthcare, education, industrial, and mixed-use developments. You will play a key role in managing project teams, overseeing technical design delivery, developing client relationships, and mentoring engineers while ensuring projects are delivered to the highest standards. Responsibilities Lead the design and delivery of building services projects from concept through to completion. Manage multidisciplinary engineering teams and coordinate with architects, contractors, and external stakeholders. Produce and review detailed engineering calculations, specifications, reports, and technical drawings. Provide technical leadership across HVAC, public health, electrical, or mechanical building...

We are working with a leader in mechanical, electrical and public health engineering solutions, delivering innovative designs and advanced technologies across various industries. Our focus is on MEP design in the construction industry for predominantly residential and commercial projects. We specialist in RIBA Stage 4 & 5 Construction projects, with a commitment to engineering excellence. Role Description This is a full-time working from home role for a Principal or Senior Electrical Engineer based in a location with the ability to get to Greater London to site are required when necessary. The Principal Electrical Engineer will lead engineering projects, design and analyze electrical systems using advanced software tools, and oversee a team of revit engineers. Responsibilities also include managing project timelines and collaborating across project design teams to ensure the successful completion of project objectives. Qualifications Strong expertise in...

Senior Mechanical Engineer Location: Warrington, Cheshire or Leicester (Hybrid Working) Job Type: Permanent Full Time (37 Hours per Week) Sector: Nuclear Mechanical Engineering About Westlakes Recruit Westlakes Recruit is a specialist recruitment partner supporting major programmes across the UK's nuclear, defence and engineering sectors. We are currently recruiting for a Senior Mechanical Engineer on behalf of a leading engineering organisation delivering complex and nationally significant projects within highly regulated environments. This is an excellent opportunity to join an experienced multidisciplinary engineering team, delivering innovative mechanical engineering solutions across the full project lifecycle while contributing to some of the UK's most strategically important programmes. The Opportunity We are seeking an experienced Senior Mechanical Engineer to support the delivery of mechanical engineering activities across a diverse portfolio of...

Principal Structural Engineer Building Engineering Milton Keynes Shape the Future of Residential and Public Infrastructure This is an excellent opportunity for a highly capable and collaborative structural engineer to take a leading technical role within our Building Engineering team. As a Principal Structural Engineer, you will be at the forefront of delivering multidisciplinary building projects across residential, public sector, and commercial developments. This role is ideal for someone who combines strong technical expertise with a passion for mentoring others, influencing project outcomes, and contributing to innovative, sustainable engineering solutions. You will play a key role in shaping the future of engineering delivery at Tetra Tech. Purpose and Scope of the Role You will join the Building Engineering team in Milton Keynes, where you will lead both new-build structural design and the structural investigation, assessment, and reporting of...

Principal Structural Engineer Building Structures Glasgow As our pipeline continues to strengthen, with particular focus on the renewable energy market, we have an excellent opportunity for a highly capable and collaborative structural engineer to take a leading technical role within our Building Structures team. As a Principal Structural Engineer, you will be at the forefront of delivering multidisciplinary building projects across the Energy sector along with a mix of residential, public sector, and commercial developments. This role is ideal for someone who combines strong technical expertise with a passion for mentoring others, influencing project outcomes, and contributing to innovative, sustainable engineering solutions. You will play a key role in shaping the future of engineering delivery at Tetra Tech. Purpose and Scope of the Role You will join the Building Structures team in Glasgow, where you will lead the structural design and integration of...

Lead electrical and control design for national water programmes Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking a Senior Electrical & ICA Design Engineer to join our Water Consultancy team, delivering AMP8 and AMP9 wastewater programmes across the UK. You will produce electrical and instrumentation, control and automation (ICA) designs for treatment works, pumping stations and ancillary plant, including load assessments, LV/MV distribution, cable sizing, single-line diagrams, URSs, FDSs and control philosophies. Daily responsibilities include client liaison, multidisciplinary coordination, site surveys, technical review and delivery of construction-ready documentation for multi-discipline design packages. Your impact in this position: In the short term you will ensure technical rigour and timely delivery of electrical and ICA packages. Over the medium term you will improve system reliability and constructability, support digital design...

Lead electrical design for UK water infrastructure - Principal Electrical Design Engineer (Water) Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking multiple Principal Electrical Design Engineers to lead technical delivery across major long-term water industry frameworks UK-wide. You will produce, review and approve intricate electrical designs, specifications, calculations and construction documentation for process plants, pumping stations and ancillary assets. Daily activities include design leadership, multidisciplinary coordination, client engagement and oversight of digital design workflows. Projects include a £100 million, 10-year United Utilities framework and a broad AMP8/AMP9 portfolio comprising multi-million-pound capital schemes. You will provide technical assurance and mentor teams of engineers, modellers and data analysts. Your impact in this position: In the short term you will assure technical quality and deliverable...

. Principal Systems Engineer Gloucester UK Looking after the people who make Safran great is our priority. We offer a range of flexible benefits designed to support you-both in and out of work, including: Early finish on Fridays Competitive salary and annual bonus 25 days' holiday + bank holidays (option to buy/sell) Flexible working options Pension (matched up to 8%) and life assurance Professional development, ongoing training, mentoring Onsite amenities: parking, restaurant, bicycle storage, showers Family-friendly and accessible workplace policies Plus a wide range of flexible benefits of your choice! Safran - Here, we craft excellence together. At Safran, excellence is a journey - and we'd love you to be a part of it. As a trusted global leader in aerospace, defence, and space, we are proud to be a company where diversity, innovation, and opportunity come together to shape a sustainable future where we can all succeed together through a shared vision We are...