Seeking an experienced CAD Designer with strong proficiency in AutoCAD and basic knowledge of Railway Signalling. The candidate will be responsible for preparing and updating signalling designs, construction/installation and as-built drawings for Mainline Railway and/or Metro projects. Key drawings include Signal Interlocking Plans (SIP), Cable Route Plans, Cable termination Rack details (CTR), Cable core plan (CCP), Equipment Layouts, Location Wiring Diagrams, RCC, Interface Circuits, wiring diagrams, Power Supply Diagrams and other signalling-related drawings. The role requires preparation of Signalling designs, coordination with Signalling Engineers, incorporation of site inputs, design changes and red-line mark-ups, and maintaining drawing quality and revision control. Knowledge of BIM, Revit and Navisworks will be an added advantage.