Architect Ad Serving from the scratch using Nodejs and MongoDB.
Architect Cron Job from the scratch using Nodejs and MongoDB.

Handling code base and the server for monitoring the API.
Fine tuning the MongoDB and Redis side.
 

Handled the OpenAPI, Report, Optimizer and few other complex modules.
Worked closely with Higher Management and clients to fulfill their requirements and resolving the issue.

Introduce new technologies to team members for the company growth.

Handle Shopping Cart with Solr technique for huge volume database with live indexing,

Handle VBulletin in cookie technique level and update into the database side.

I have restructured entire website within short time in database & code part,
which optimized the load time from mins to milliseconds.

And dump the existing data without missing, also handled in security level in Database & Code side.