It is always great to work with a brilliant Freelancer who knows exactly what they are doing. Sergey is that. He brilliantly fixed a very complicated payment gateway problem within our ecommerce software. He done it in less than half the time he estimated. He is very easy to work with and very professional. I would definitely work with him again.
Link to the original freelance project: https://www.freelancer.com/projects/16248808.html
Freelance Project categories: eCommerce, Magento, PHP