Senior Mechanical Design Engineer in Chesham

Mechanical & Electrical, Senior Appointments

Hybrid, Permanent

Speciality: Design, Hevacomp, Project Management

UK Residency Required: Yes

Apply by: 02/12/2026

Min Experience: 7 years

The Opportunity

Looking for greater ownership of your projects and more scope to apply your engineering judgement?

Apex M&E Solutions is recruiting a Senior Mechanical Design Engineer for an established building services consultancy in Chesham.

Reporting to the Principal Design Engineer, you’ll develop mechanical services designs from the initial brief through detailed design and project delivery. You’ll work directly with clients, make technical decisions and manage the costs and programmes associated with your projects.

What makes this role worth considering?

• Project ownership: develop the engineering solution and remain involved as the project progresses.




• Direct client contact: discuss requirements, explain your recommendations and maintain relationships.




• Technical breadth: combine detailed design with building surveys, energy assessments and compliance reports.




• A role in developing others: guide engineers, technicians and trainees, and contribute to internal design standards.

What you’ll bring

You’ll have a strong background in mechanical building services design and be comfortable taking responsibility for your work.

You should be confident developing designs, applying relevant UK standards and regulations, coordinating with other disciplines and managing project deadlines and costs. Experience undertaking surveys, preparing technical reports and supporting less experienced colleagues will also be valuable.

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