CAD Specialist

Overview

A specialist engineering organisation supporting major infrastructure programmes at Heathrow Airport is seeking an experienced BIM / CAD Specialist to support NEC projects across the Heathrow portfolio. The role focuses on the production and maintenance of BIM-compliant designs using advanced CAD and BIM applications, with a strong emphasis on 3D modelling and Revit, in line with Heathrow 9s stringent BIM governance standards.

You will work closely with engineering and project delivery teams to support timely project execution, deliver robust design solutions, and manage updates across fire detection, BMS, and automation system documentation. The position is primarily based at an office near Heathrow (Longford) and operates on a hybrid basis due to the specialist nature of the skillset.

• Produce and update BIM-compliant CAD drawings and Revit models for Heathrow Airport projects
• Develop new product designs and enhance existing designs using CAD and BIM tools
• Create and maintain wiring diagrams, schematics, layouts, and fire detection device placements
• Ensure all design outputs comply with Heathrow Airport BIM, 3D modelling, and governance requirements
• Upload, manage, and maintain the latest design information and revisions within BIM environments
• Collaborate with engineers and project managers to ensure timely and accurate project delivery
• Assess products, parts, and processes for cost efficiency, constructability, and reliability
• Manage multiple design tasks simultaneously with a high level of accuracy and autonomy
• Provide technical guidance or oversight to junior team members or external resources when required
• Participate in NEC project meetings and coordinate design updates as necessary

• Strong BIM capability; this is a critical requirement for the role
• Expert-level proficiency in Revit (non-negotiable due to Heathrow BIM standards)
• Demonstrable experience using CAD tools for both 2D and 3D model production
• Experience working with BIM models that integrate into large, site-wide digital environments
• Proven ability to produce and update wiring documentation, device layouts, and engineering schematics
• Bachelor’s degree in a relevant technical or engineering discipline
• Previous experience in design-focused roles using BIM and CAD tools
• Strong understanding of engineering design processes, standards, and multidisciplinary coordination
• Ability to work effectively both independently and within collaborative engineering teams
• High level of judgement, attention to detail, and creativity in design activities

Experience in the following areas is beneficial but not essential:

• Fire detection systems
• BMS or automation systems
• Building services or wider MEP engineering environments

Strong BIM and Revit capability is the primary requirement, and candidates without direct industry background will still be considered where technical proficiency is demonstrated.

• Office-based near Heathrow Airport (Longford, landside access)
• Hybrid working model due to specialist skill requirements
• Typically 2–3 days on site per week, subject to project demands
• Standard daytime working hours
• Minimal to no night work anticipated

• Role is landside, with occasional site visits requiring temporary or full airport passes
• Candidates must be UK, EU, or NATO nationals for security reasons
• Background and security checks may be required depending on project scope

• This role is intended as a temp-to-perm pipeline, with permanent opportunities for strong performers
• Heathrow design work has transitioned heavily from 2D into strict 3D BIM environments, making high BIM fluency essential

To apply or discuss this role in confidence, please contact Ian at Holt Engineering:

Email: ian.b

Telephone: