Built a RESTful api backend for a payment app based on micro service architecture using python and handling user connection based on a pre fork worker model and coroutine based request processing. Deployed on aws ec2 with specs including 4 core cpu and 8gb ram enabled the backend to handle vast amount of I/Os in a secondIntegrated an IoT device to the backend using serialport communication which was done using python.

Built RESTful api backend for a Cloud Kitchen app using frappe framework and integrated the api to ERPNext to automate order management in the existing ERPNext CMS.Deployed on AWS Lightsale with spec of 4 core cpu and 8gb ram enabling the backend to handle more than 300+ orders daily. As it was a top down approach scaling the ERPNext was a little tedious process. Used MongoDB to create easy accessible log data for the client applications.Also integrated with a laravel application with ERPNext which is used for administration of each outlet.

Worked on existing Retail & Wholesale billing application which has huge client base of more than 6 years. Built a POS system using WPF with features like holding a customers purchase and integration with different types of scanners.

Built retail billing solution for Jewellery inlcuding modules like goldsmith managment.Used Codeigniter and MySQL to develop the application. As per the requirement to run application locally, built an installation setup wizard packaged into a executable which will automatically setup XAMPP and required dependencies. So, my client could install the web powered offline application without developer support for each installation

Worked on a Retail & Wholesale billing solution.Built a POS System using DevExpress to make custom UI.

Worked on many projects including Accounting & Billing Solutions, CRMS, HRMS(done biometric integration) and Token generation system for baggage Wrapping machine