Senior/ Associate Mechanical Engineer

Bennett Freehill LLP is a leading building services consultancy delivering high-performance, sustainable engineering solutions across the UK and Ireland. We specialise in mechanical and electrical design, BREEAM and sustainability consultancy, Passivhaus design, digital engineering, and commissioning management.

Our portfolio includes some of the most technically ambitious and environmentally progressive projects in the region—from Passivhaus‑certified education buildings and complex healthcare facilities to large‑scale commercial and innovation developments.

We are a growing, ambitious practice with a strong reputation for technical excellence, collaborative delivery, and a people‑first culture. Our continued success is built on the quality of our team—and we are now looking to strengthen that team with the appointment of a Senior Mechanical Engineer.

The Role

You’ll take ownership of mechanical design from concept through to delivery—working closely with clients and design teams while helping to shape how we deliver projects as a business.

You will:

• Lead mechanical design on a range of projects
• Develop innovative, sustainable engineering solutions
• Work directly with clients and multidisciplinary teams
• Oversee technical delivery, site inspections, and submittals
• Support commissioning and performance outcomes
• Mentor and develop junior engineers

About You

• 5+ years’ experience in building services consultancy
• Strong technical background in HVAC and building services design
• Comfortable leading projects and engaging with clients
• Chartered, or working towards Chartership

This isn’t just another consultancy role—this is a chance to be part of a growing, ambitious practice where your input genuinely matters.

What you can expect:

• High-quality projects with a strong sustainability focus
• Clear career progression with structured support to Chartership
• Flexible working (including hybrid and early Friday finish)
• 34 days annual leave and a genuine focus on work-life balance
• Private healthcare, enhanced benefits, and paid overtime
• A collaborative, down-to-earth culture with regular CPD and team events

Interested?

If you’re looking to step into a role where you can lead, influence, and grow—we’d love to hear from you.

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