Principal Mechanical Design Engineer – MEP Building Services

Client: My client is a growing building services consultancy with a team of around 20 people, delivering a good mix of commercial and residential projects. Their workload is split roughly 50/50 between client–side and contractor–led projects, giving engineers the chance to work across a varied portfolio and gain well–rounded experience.

Despite their growth, they've kept a close–knit, supportive culture where everyone is approachable and there's plenty of opportunity to learn from experienced engineers and directors. They have a strong leadership team in place, regular monthly socials, and a genuine focus on helping people develop their careers. With the business continuing to grow, they're now looking to bring a Principal Mechanical Design Engineer into their London office.

Role: Principal Mechanical Design Engineer – GBP
65,000 – GBP
75,000 + Benefits

You'll be involved in the design and delivery of Mechanical building services projects from initial concept through to construction. Working alongside experienced engineers, you'll gain exposure to a broad range of commercial and residential schemes while developing your technical knowledge and taking on increasing responsibility as your experience grows.

This is a great opportunity to join a consultancy that's growing rapidly, offers plenty of variety in its workload, and provides a supportive environment where your career progression is genuinely encouraged.

Role & Responsibilities

• Lead the design and delivery of Mechanical building services projects.
• Produce detailed design and technical information packages in line with project programmes.
• Develop practical and innovative engineering solutions tailored to client requirements.
• Coordinate closely with architects, structural engineers, sustainability consultants, and wider design teams.
• Attend client and project meetings as a representative of the business.
• Utilise industry–standard software including CAD, Revit, and BIM platforms.
• Carry out engineering calculations and performance assessments to support design decisions.
• Support and mentor junior engineers where required.
• Assist in the successful delivery of projects through all key design stages.

The ideal candidate:

5 years + experience as a Mechanical Design Engineer.

Ideally have a HNC or HND and good technical knowledge of Mechanical design services.

Experience working in the commercial sector

Have the right forward–thinking attitude

In Return They Offer

• A healthy and diverse pipeline of work across multiple sectors.
• Exposure to innovative and sustainability–focused projects.
• Genuine opportunities for career progression and professional development.
• The chance to work on technically challenging and high–profile developments.
• Flexible and hybrid working arrangements.
• The opportunity to join a growing consultancy with an excellent reputation within the industry.