Senior Civil 3D Drafter

Role & responsibilities • Develop Civil 3D corridor and alignment models from approved horizontal and vertical design alignments. • Model formation, sub-formation, and subgrade layers in accordance with geotechnical and track-bed designs. • Model track superstructure components to the prescribed LOD/LOI, including rails, sleepers, fastening systems, track slabs, and ballast profiles. • Adapt models for viaduct track-on-structure, at-grade ballasted track, depot turnouts and crossings, and tunnel geometry and clearance requirements. • Build and maintain Civil 3D corridors, assemblies, and subassemblies to manage repetitive track cross-sections efficiently. • Coordinate model geometry with structural, tunnel, systems, and depot disciplines to support clash-free integration. • Apply BIM naming conventions, layer standards, and object and parameter requirements defined in the applicable BIM Execution Plan. • Extract model quantities, including ballast volumes, slab volumes and areas, rail lengths, and sleeper counts. • Export models to Navisworks for coordination review and support clash resolution with the BIM Manager. • Incorporate design revisions promptly and maintain clear model version control in the Common Data Environment. Preferred candidate • Diploma or bachelor's degree in Civil Engineering or an equivalent technical qualification. • At least 5 years of hands-on AutoCAD Civil 3D experience, including corridor modelling, assemblies and subassemblies, alignments, and profiles. • At least 23 years of experience modelling railway track systems, including ballasted or slab track; roads-only Civil 3D experience is not sufficient. • Working knowledge of track engineering components, including rail sections, sleeper types, fastening systems, and ballast and slab-track systems. • Experience modelling turnouts, points, and crossings for depot or yard trackwork is an advantage. • Working knowledge of Navisworks for model review and clash checking. • Familiarity with LOD/LOI requirements and BIM Execution Plan-driven modelling standards. • Demonstrated ability to use corridor- and assembly-based workflows efficiently for high-volume modelling on large linear infrastructure. • Familiarity with Revit for coordination of track slab or superstructure models is an advantage.