Lead Mechanical Design Engineer – Building Services

Thomas Search; Winchester; On-site; GBP 90,000 - 115,000; Full time

Job summary

Thomas Search are partnered with a forward-thinking building services consultancy to appoint a Principal Mechanical Design Engineer in the South-East. This role will lead mechanical design packages, mentor junior engineers, and drive project delivery from concept through construction.

It is a design-led, client-facing position offering technical autonomy and progression within a well-structured engineering environment in Winchester.

Qualifications

• Strong background in mechanical building services design.
• Experience from a consultancy or technically focused contractor environment.
• Degree qualified (or equivalent: HNC/HND+).
• Chartered Engineer (CEng) status.

Responsibilities

• Leading mechanical services design on building projects
• Acting as lead engineer within design teams
• Managing and coordinating internal disciplines on smaller schemes
• Producing detailed designs, calculations, reports, drawings, and specifications
• Using industry-standard tools such as Hevacomp, IES, CAD, and Revit
• Undertaking QA reviews to ensure technical and regulatory compliance
• Advising clients on energy efficiency, sustainability, and carbon reduction
• Attending and contributing to client, design, and technical meetings
• Mentoring and supporting junior engineers and apprentices

Skills

Mechanical building services design

Lead engineer responsibilities

Client-facing

Mentoring junior engineers

Education

Bachelor's degree or equivalent (HNC/HND+)

Chartered Engineer (CEng)

Tools

Hevacomp

IES

CAD

Revit

Job description

Thomas Search are partnered with a forward-thinking building services consultancy to appoint a Principal Mechanical Design Engineer in the South-East. This role will lead mechanical design packages, mentor junior engineers, and drive project delivery from concept through construction.

It is a design-led, client-facing position offering technical autonomy and progression within a well-structured engineering environment in Winchester.