Hello,
I have expertise in Magento Integrations, specially using the REST API, which in principle should be similar to SOAP. I know it can get very tricky sometimes, since the communication protocols are not always set up properly, and sometimes you need to extend its funcionality to achive your goals as well.
Besides, of my Magento extensive knowledge, and its communication in RESTful services, I have a lot of expertise on integrating different applications and consuming APIs. It's basically what I enjoy do most and I do for a living. For example, integrations with NetSuite, Amazon MWS, Google APIs, etc.
I know my changes are low to be the awarded Freelancer, however I would politely ask you to consider my bid. I would love working in your project, and I am sure I can bring a lot of good things to your company because of my eCommerce background.