I have been working in this field for more than 4 years. 
In this period, I have worked on multiple projects like underground parking, highways projects, toll plaza, solar plant,etc. 
In these projects, I have worked in various departments like site execution, planning & management, measurement & billing, BBS, quality control, design & drafting, documentation, etc. 
In my total experience, I have deal with big companies namely: CEG, TATA Power, PNC Infra, Delhi & Bangalore Metro, GPT Infra, etc.