Job Description
Principal Mechanical Engineer Building Services
Location: South Croydon or London Bridge
Working Pattern: Hybrid (3 days in office, 2 from home)
Are you a hands-on Principal Mechanical Engineer ready to lead complex, high-value building services projects while mentoring a talented team This opportunity sits within a long-established building services consultancy with more than 30 years experience delivering MEP projects across the UK.
About the Organisation
This respected engineering practice specialises in healthcare, commercial, leisure, high-end residential, industrial, defence and education sectors.
What sets them apart:
- A deep engineering heritage, successfully delivering building services engineering projects for over 25 years.
- A strong sustainability ethos with expertise in low-carbon design, renewable technologies, and modern environmental engineering.
- A stable team with decades of combined experience, working with well-known national and international clients.
- Operating primarily across London and the South, backed by strong client relationships and repeat business.
With a strong delivery-focused culture, this is the ideal setting for a senior mechanical engineer who wants influence, responsibility, and meaningful impact.
The Role
As a Principal Mechanical Engineer, you will take full technical and leadership ownership of multiple building services projects across varied sectors. Responsibilities include:
- Leading mechanical engineering design across healthcare, commercial, leisure, industrial and high-end residential projects.
- Developing detailed mechanical design concepts, remaining hands-on throughout all project stages.
- Managing and mentoring a small team of mechanical engineers, ensuring technical quality and delivery excellence.
- Working closely with multidisciplinary colleagues to craft integrated, sustainable building solutions.
- Representing the practice in client and design team meetings, articulating strategy and technical direction.
- Contributing to feasibility studies, condition surveys, and wider MEP coordination where needed.
What Makes This Opportunity Attractive
- Hybrid working choose between South Croydon or London Bridge offices, with flexibility to work from home two days a week.
- Join a consultancy that is ISO 9001 accredited and Constructionline registered, recognised for its consistent quality and assurance standards.
- Exposure to a wide range of services including MEP design, feasibility studies, low-carbon solutions, renewable technologies, EPC/DEC assessments, and contract administration.
- A leading practice in low-carbon design and sustainable engineering, integrating renewable and energy-efficient solutions across projects.
- An experienced leadership team with a collaborative, hands-on approach that supports professional growth and autonomy.
Who We re Looking For
- An experienced mechanical engineer with substantial building services consultancy experience.
- Someone who thrives in a hands-on technical role, leading design while managing projects effectively.
- A confident leader who can guide a small engineering team and elevate technical standards.
- Experience in healthcare, commercial, residential care, leisure, or industrial sectors is advantageous.
