hi,
I'd like to help you on this. I have a vast experience with .net and sql development and integration, working with different APIs. Please feel free to check out related projects I completed here on freelancer. My understanding is you would like to sync master data from your CRM similarly to the salesforce method. My bid is for working with you to work out, agree and implement the synchronization required. I envisage this working as a scheduled application or windows service, please advise what would suit you best. I am bidding with the assumption that proper access (account) to the APIs will be provided/can be subscribed for for free.
I am prepared to offer future support/further development also as you may require.
I'd like to start with a skype discussion to clarify the scope and technical details, please advise of a time suitable for you.
thanks
Janos