I've been developing since '07, initially with java and some php, later i got certified by Microsoft on .NET Technology, i have a lot of experience doing projects from small projects like a POS and some other bigger than that for example for a bank (BANORTE in Mexico) and FOVISSSTE (Mexico government health institute), now i'm this freelancer stuff as a second job because i really like to do this and i think i can make use of my skills to help other people reach their goals.
Now since i got the MCPD certification, i went to Javascript technologies like Jquery, Knockout, node and the last one React which i love, and doing in my spare time some unity programming like the nerd i am because i want to do my own game.
I've been working with a few Database engines like MySQL, SQL Server (mostly) and Oracle, but as long as they are Relational oriented Database engine, they are similar between each other.