We would like to migrate the site to a platform that is maintainable and can be integrated with our new React.js apps and services layer. We are open to which platform to use. At first, we had considered Drupal, but feel it may be too bloated for our purposes. A few firms recommended Laravel, which seems quite popular although we are not big fans of PHP. Django or Meteor are other possibilities.
We are also looking to move billing to the Braintree platform and start supporting paid memberships. Our current site is pay as you go - users purchase a virtual currency (credits) and redeem them for our data product.
The list of skills for the job includes multiple different frameworks. We aren't looking for someone who necessarily knows all the frameworks but has experience with one or more and has an idea of which framework would work best for this project.
Attached is a list of goals we would ideally like in the new platform. Upon contacting us, we can provide more information (such as the URL for the current website).