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 AutoCADCarrying out heating and cooling load calculations using HevacompCompleting ductwork and pipework pressure loss calculationsPreparing technical submittals, schedules, and design documentationCoordinating designs with project teams to ensure smooth project deliverySupporting projects throughout the design, coordination, and construction phasesWorking on commercial building services projects, including CAT A and CAT B fit-outsWhat you''ll need:Strong AutoCAD (2D) and Hevacomp experience with the ..... full job details .....