I hold a vast experience in developing scalable and robust applications on an enterprise and consumer level. Besides that, I have also worked with different startups and as well as established companies in solving their most critical problems with the best efficient solutions. I have been using MEAN Stack, MERN Stack, specifically express with node and MongoDB(NoSql). Server-less architecture has also been under my consideration. On the backend I have expertise on both n-tier and server-less using Node.js, AWS, Google Cloud functions with multiple options in the database like SQL, NoSQL (MongoDB), Firebase and Parse (lately). Managing source code with version control systems as well. I have developed and even integrated different 3rd party API(s) like payment gateways (like Paypal, Braintree, and Stripe), Social Authentication (like Facebook, Google, Linkedin and Twitter), Audio & Video Streaming, News feeds (like webhose.io, HMRC, and certax), WordPress plugins, VOIP calling and messaging (like bit6, tawk.to and others), SMS gateways (like CMI) and with taxation portals (like IRIS).