Principal Mechanical Building Services Engineer in Stockport

Location: Bredbury, Stockport

Ref: 0020

Contract: Full Time

Closes: 28/02/2026

We now have an exciting opportunity for an experienced mechanical building services design engineer to join our growing practice at either Principal level depending on experience. Established in 1949, we are a multi-award-winning company that excels in the delivery of sustainable MEP design. We are the region's leading employer of building services engineering talent and are 2024 CIBSE National Employer of The Year.

Let me introduce you to S I Sealy:

• Our team works with high profile clients, locally and nationally – on projects which make a difference.
• We are at the forefront of helping businesses and organisations towards net zero, with the support of cutting edge and sophisticated modelling software.
• Our team is ambitious, dynamic and focused on delivering for our clients.
• We are proud of our culture, which is open, friendly and supportive.
• We will support your personal and professional growth – providing you with opportunities to challenge yourself and continually learn.
• We are the current CIBSE National Employer of The Year 2024-2025.
• With hybrid working, we encourage you to achieve a work-life balance; whilst developing strong relationships with your colleagues, in and out of work.
• We have a strong social and environmental conscience – supporting our local communities.
• We are a Carbon Neutral business, verified to PAS2060.

As a key member of our senior leadership team you will be involved in managing a wide range of small to large projects within both our building services and net zero design teams. The role will be challenging, demanding, varied and offer excellent opportunities for career development.

You will:

• Have responsibility for all aspects of assigned project work, focusing primarily on commercial, public sector and healthcare projects.
• Client facing on matters of both a commercial and technical nature.
• Take an active role in business development.
• Support the senior leadership team in project planning and resource management.
• Lead the mechanical design team in the coordination and delivery of individual projects and take an active role in the development of junior engineers.
• Support the design team on technical aspects of healthcare projects – developing/mentoring the teams to successfully deliver healthcare sector projects.
• Work and liaise with associated engineering disciplines as part of delivering technical support.
• Support the wider senior management team running the commercial aspects of projects, bidding for new projects and developing client relationships.
• Produce detailed engineering designs using IES, IES-VE, AutoCAD, MagiCAD and Revit software whilst meeting all relevant standards, including energy efficiency and low or net zero carbon requirements.

We are nice people – who look to make a difference. If that also describes you, come join us.

You will ideally have several years’ UK based experience across multiple sectors. Projects include new build, refurbishment and retrofit with a range of values from small projects for key clients to £100m+ major projects. You should be capable of working with a team of engineers on large projects, managing the delivery of multiple smaller projects whilst simultaneously managing clients.

An ideal candidate will:

• Be BEng or MEng degree qualified.
• Have Chartered Engineer status.
• Be a member of associated Professional bodies such as MCIBSE or MIMechE.
• Have IHEEM membership.
• Have UK Healthcare sector experience and a sound working knowledge of HTMs and HBNs or transferable skills including cleanroom/laboratory design experience.
• Have a minimum of 5, ideally 10 years UK based post graduate experience working in design consultancy.
• Have exceptional skill associated with mechanical building services design and an awareness of all technical requirements, legislation and best practice.
• Have sound commercial knowledge and experience of monitoring financial spend on projects against project targets.
• Have good project management skills and the ability to manage multiple projects of varying size/complexity.
• Demonstrate enthusiasm in all aspects of the role and have a positive ‘can-do’ attitude.
• Demonstrate confidence both to the client and internally to project an appropriate image and support peers and colleagues.
• Be flexible in approach, to suit changing project/market forces.

What We Offer:

We will give you the freedom to enable you to do your best work with both flexible working hours and hybrid work options. Whether you’re working from our head office, remote location, at home or on a construction site, you will be working in a very dynamic environment where your integrity, technical knowledge and innovation will be championed, with opportunities to progress within the practice. This is a demanding and challenging position, but in return, you will be well rewarded with an attractive salary and a comprehensive benefits package, including private medical insurance, death in service life insurance, income protection (for long term absence), stakeholder pension scheme, generous holiday allowance including an additional holiday on your birthday, flexible working hours, hybrid working patterns and the potential for quarterly incentive payments and other benefits.

We are committed to the ongoing professional development and career progression of all our people. As a result, our policy is to cultivate your engineering talent by offering customised training, working patterns, knowledge transfer and development programmes, all to develop your strengths as far as you wish to take them. CPD seminars are held internally at monthly intervals to help maintain or achieve your professional status.

S I Sealy is an Equal Opportunities employer where qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. S I Sealy is an ISO9001/14001/45001 & 19650 certified employer and verified Carbon Neutral to PAS 2060.