Professional Portfolio Web Applications and Software I made for others

Backend JSON API Server for a music sharing and messaging app.

Focused mainly on performance, achieved very high throughput with very little hardware resource

SaaS multi-tenant product for temporary staffing agencies to manage their entire business.

Includes solutions for shift scheduling, expense reporting, and payroll with tax calculation and payslip generation.

One of the leading penny auction sites at the time, handling a large volume of daily traffic.

Highly performant architecture to cope with the traffic and low latency required for the auctions.

Management of all the internal procedures for over a dozen Forex brokers. Automatic creation and funding of trading accounts, withdrawals, approval of customers, verification of documents, VPS servers, billing and more.

MoverTrends sells lists of new movers to local businesses, allowing them to search geographically in a database of over 30 million new movers, and identify potential customers who are new to the area.

FriendShopper is a social shopping site, allowing you to shop in real-time with your friends. It is essentially a web chat and shared browsing application, that lets you see several items in their original sites and discuss them with your friends.

I had the honor of participating as a judge in the Algorithm invitational of Microsoft's Imagine Cup. This was during the worldwide finals, a 24-hour straight competition where six of the world's brightest CS students compete to optimize results for NP-Complete problems.