Mechanical CAD Engineer

Mechanical CAD Engineer - Twickenham Area
Negotiable Day Rate | Immediate Start | Minimum 3-Month Contract
We're working with a well-established mechanical building services contractor who is looking to recruit an experienced Mechanical CAD Engineer to support their busy design team on a temporary contract. With a strong pipeline of commercial projects, this is an excellent opportunity to join a reputable contractor and hit the ground running on a variety of live building services projects.
This role is available for an immediate start on Monday 6th July 2026, with a minimum three-month contract and the potential for further work. Day rate is negotiable, depending on experience.
The role:
As a Mechanical CAD Engineer, you'll support the delivery of mechanical building services designs across a range of commercial projects, producing accurate drawings, calculations, and technical documentation to support project delivery.

Producing detailed 2D mechanical layout drawings using AutoCAD
Carrying out heating and cooling load calculations using Hevacomp
Completing ductwork and pipework pressure loss calculations
Preparing technical submittals, schedules, and design documentation
Coordinating designs with project teams to ensure smooth project delivery
Supporting projects throughout the design, coordination, and construction phases
Working on commercial building services projects, including CAT A and CAT B fit-outsWhat you'll need:

Strong AutoCAD (2D) and Hevacomp experience with the ability to hit the ground running
A solid understanding of mechanical building services design principles
Experience producing accurate technical drawings and design documentation
Previous experience working on UK commercial building services projects
Knowledge of CIBSE guidance and UK Building Regulations
Excellent communication skills and a collaborative approach to project deliveryThe successful Mechanical CAD Engineer will receive a negotiable day rate, depending on experience, with an immediate start on Monday 6th July 2026 and a minimum three-month contract.
If you're an experienced Mechanical CAD Engineer or Mechanical Design Technician available for your next contract, we'd love to hear from you.
? Call Lily at Tech-People on (phone number removed)
? Or email your CV to (url removed)
Tech-People is a specialist recruitment agency within HVAC, FM, and M&E. We are proud to promote diversity and inclusion and welcome applications from all backgrounds