Principal Mechanical Design Engineer - fully remote

Principal Mechanical Engineer

Fully Remote (UK)
£65,000 – £72,000 + Benefits

Are you an experienced Mechanical Engineer with a strong background in residential building services design, looking for the freedom and flexibility of a fully remote role?

A fast-growing and forward-thinking building services consultancy is seeking a Principal Mechanical Engineer to take a leading role in the delivery of a diverse and expanding portfolio of residential developments across the UK.

This is a senior position within the business, offering full ownership of project delivery from concept through to completion, with a focus on delivering innovative, sustainable, and commercially robust engineering solutions.

The Role

As Principal Mechanical Engineer, you will lead the mechanical discipline across a wide range of residential projects, acting as a key technical authority within the business. You will be responsible for ensuring design quality, driving project success, and supporting the continued development of the wider engineering team.

Key Responsibilities

Lead the mechanical design and delivery of residential building services projects across all RIBA stages
Take full ownership of projects from feasibility and concept design through to construction and handover
Produce and review calculations, specifications, reports, and technical documentation
Provide technical leadership, mentoring, and support to engineers across the team
Develop and maintain strong relationships with clients, developers, architects, and contractors
Act as a trusted technical advisor, ensuring high-quality and commercially sound outcomes
Coordinate effectively with multidisciplinary design teams
Promote sustainable, low-energy, and innovative engineering solutions
Ensure projects are delivered on time, within budget, and to the highest technical standardsAbout You

We are looking for a confident, self-sufficient engineer with strong residential sector experience and the ability to lead projects independently in a remote environment.

You will ideally have:

A degree in Mechanical Engineering, Building Services Engineering, or a related discipline
Minimum 6 years’ experience within a building services consultancy
Strong, demonstrable experience in residential project delivery (essential)
Proven ability to lead projects and manage client relationships
Strong technical knowledge of HVAC systems, mechanical design principles, and UK Building Regulations
Excellent communication and stakeholder management skills
A proactive, self-motivated approach suited to remote working
Chartered status or working towards chartership (CIBSE, IMechE, IET or equivalent) desirableWhat’s on Offer

Fully remote working anywhere in the UK
Genuine flexibility and autonomy – no office requirement
Opportunity to join a rapidly growing and ambitious consultancy
Lead delivery on a strong pipeline of residential projects nationwide
Collaborative, quality-focused culture with strong technical support
26 days annual leave plus bank holidays
Clear progression opportunities and long-term career developmentInterested?

If you’re an experienced residential Mechanical Engineer looking for a Principal level role that is fully remote, we’d love to hear from you.

Please contact Callum via (url removed)