Writing a mongodb query for a very large database

Hi - I am a mongodb certified DBA and developer with over 5 years of experience handling mongo databases. I have experience in setting up mongo replica sets and shard clusters and also writing complex aggregation queries which use indexes optimally. I will be able to help you with your requirements if you give me the opportunity. Thank you.

Hi i have read your project and i have knowledge in mongodb with mongoose and node.js. I can do it for you.