Company: Tetra Tech
Location: Leeds
Posted: April 17th, 2026
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.
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, drawings, specifications and technical reports. You will also play an important role in supporting project planning, coordinating with clients and design teams, and ensuring engineering excellence throughout the design and construction process.
As a senior member of the team, you will influence the technical direction and quality of projects while supporting the development of junior engineers. Your expertise will help deliver efficient, sustainable building services solutions across multiple sectors. You will build trusted client relationships, contribute to new business opportunities, and ensure projects are delivered safely, efficiently and in line with best practice. Through technical guidance and collaboration, you will help strengthen the capability and reputation of the wider building services team.
You will hold a degree in Mechanical or Building Services Engineering and ideally be Chartered or working towards professional accreditation. You will bring proven experience delivering mechanical design across complex building services projects and be comfortable leading technical packages of work within multidisciplinary teams. Experience with digital engineering tools and an understanding of sustainable design principles are important, along with strong communication and technical reporting skills.
This role is based in Leeds with a hybrid working arrangement that combines office collaboration with remote working. Flexible working arrangements are supported to promote work-life balance while maintaining close collaboration across project teams. Travel to client sites may be required depending on project needs.
Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity.
We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who Leading with Science® to solve our clients’ most complex problems.
In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.