I have more than 15 years of MS Access development experience. In past I have worked on Job estimating , Sales and Quotation applications. I have been working with a company which builds tailor fit solutions for Sales and Quotation Management requirements of wide variety of businesses. Majority of our clients used SQL server as backend. If you want I can send you a link to their website. I did majority of MS Access development. I did integration of MS Access based application with Enterprise ERP systems(Great Plains, Infor SX, Microsoft CRM,Progress,Maximizer, QuickBooks, Goldmine,ACT) That will give you some idea about my skill set. I just joined Freelancer. I don't have any feedback or Freelancerhours yet. I am confident that I will be a perfect fit for your requirements.
If you want I can send you a sample Access mdb with working Amazon API as a proof of concept.
Thanks
SJ