Design & Estimation Engineer – Fire Rated Doors & Joinery

The Design & Estimation Engineer – Fire Rated Doors & Joinery will be responsible for detailed design, technical specification, cost estimation and coordination for fire-rated door systems and specialised joinery used across aviation rescue & firefighting (ARFF) projects and related facilities. The role requires strong technical knowledge of fire-rated door standards, materials and fabrication methods, proficiency in preparing shop drawings and take-offs, and the ability to produce accurate, commercially sound estimates. The post-holder will work closely with project teams, procurement, manufacturing and site teams to ensure designs are compliant, manufacturable and delivered within budget and schedule.

Key Responsibilities

• Prepare detailed design drawings, shop drawings and fabrication details for fire-rated doors, frames, seals, hardware and specialist joinery in accordance with applicable fire standards and project specifications.
• Develop accurate quantity take-offs and cost estimates for materials, labour and subcontract works for tendering and project budgeting purposes.
• Review project specifications, architectural drawings and site conditions to identify design risks, compliance gaps and constructability issues; propose practical solutions.
• Specify appropriate materials, fire-rated cores, hardware, glazing, seals and finishes ensuring compliance with fire-performance requirements, durability and maintenance considerations.
• Coordinate design inputs with engineering, procurement, manufacturing and site teams to ensure seamless transition from design to production and installation.
• Produce and maintain bill of materials (BOM), cut lists and manufacturing instructions; ensure accurate data entry into ERP and estimation systems.
• Prepare scope documents, take part in tender evaluations, clarify technical queries from clients and subcontractors, and support commercial negotiations where required.
• Perform technical calculations, fire-rating assessments and compliance checks; liaise with third-party testing or certification bodies as needed.
• Maintain design standards, templates and drawing libraries; implement lessons learned and continuous improvements to estimation methodologies.
• Provide site support during pre-installation surveys, installation and commissioning, including