Working as Back-End and have the following main responsibilities:- Built Multi-tenancy Marketplace- Developed Built-in 3D configurator- Admin Panel with Data-Visualization - Integrated Stripe as a Payment Gateway - Integrated Automated freight and parcel shipping cost calculation- Integrated Twilio/Sendgrid for handling 2fa authentication- Implemented Sendgrid's Sub user's Accounts to allow Tenants to create their own email templates- Integrated Zapier App to automate tasks for Vendors- Added activity triggers that notify new customers, new orders, new products, etc- Develop architecture for Microservices in Django and deployments with Docker- Responsible for debugging the project monitored on JIRA (Agile)- Wrote Python scripts to parse JSON documents and load the data in the database- Worked on Restful APIs to access the third-party data for the internal analysis and statistical representation of data

Working as Senior Back-End Engineer and have the following main responsibilities:- GraphQL, REST API development in Flask and Django- CanvasJS, Google Charts- Radius and Tacacs authentication Integration- Database architecture planning and handling- Multithreading at a large scale using python- Automation and scripting, cron jobs, scheduled updates- Deployment on Linux servers, database initialization, data backup and restore, migration of data- Deployment using Nginx server and SSL certificate installation- Deployment on AWS Server- Backend development includes JSON files creation, database linking, downloading, and uploading of files- PANDAS to perform data analysis and manipulation- Worked on the improvement of data protection and security and created new user information solutions- Develop architecture for Microservices in Django and deployments with Docker- Defining API specifications for financial transactions

- Exchange Parser (C++) - Stock Exchange Event Message Parser System to Decode MoldUDP64 encoded messages- Highly efficient implementation using Object Pooling Design Pattern- Byte-wise shifting to Decode messages- Multi-threaded architecture for separate parser and logger, JSON dumping, thread-safe queue- Designed to avoid heap allocations- Unit Testing of the program- Chunk Parser (Python | C)- Optimization of Python program using Cython and C extensions- Able to enhance performance up to 4000 times- Profiling using cProfile- Web Scrapers (Python)- Scraper to fetch daily Stock data available on the website using bs4 and requests modules- Scraper to extract products information from an e-commerce website and create a CSV file for Shopify- Web Bot (Python, ETL, Data Science, Data Analysis)- Bot to purchase multiple products from an e-commerce website using Selenium, Bs4, and requests module