Cryptocurrencies Graph is a web application developed using test driven development (TDD) that visualizes the latest values of Bitcoin, Ethereum and Nasdaq in US dollars, taken from external APIs.

You can view the source code on GitHub. You can also read a step-by-step tutorial that I wrote and then published on Scotch.io while I was developing this project.

Basic Book Review is a web application in which users can add new books, browse existing ones and leave comments and reviews about them.

You can view the source code on GitHub.

Photo Gallery is a web application in which users can upload, and view images, and also like them.

You can view the source code on GitHub.

Explore California is a REST API that exposes a database of tours as a web service.

You can view the source code on GitHub.

Document Manager is a web application that makes it easier for user to manage their documents online.

You can view the source code on GitHub.

Merchant Safe Unipay is an online payment solution offering a secure, easy and convenient checkout experience for both, Customers (Card Holders) and Merchants. It is a very flexible and customizable payment tool with rich API support.

You can learn more about it here.

Paratika is an electronic payment solution that can has its own POS infrastructure and which can store the card data to ensure their usage in the future payments.

You can learn more about it here.

Parakod is an online platform which allows individuals to make electronic commerce transactions like purchasing items on-line with a computer or using a mobile device to purchase something at a store. Transactions with mobile are done by using QR Code in a highly secure way with the One-Time-Password (OTP) technology. This application is all individual (client) based. Easy to use and fast access to banking and payments.