UX Design and Web App Prototyping

General information for the website: Online advertising marketplace

Description of requirements/features: Need to design the UX of a web application. The app is an advertising marketplace targeted at influencers and large brand advertisers. It is used to manage a network of influencers and marketing campaigns. The goal is to create a seamless workflow and great user experience, so that users require no training and feel good about using the platform on a daily basis. No graphic design or coding required, we just need prototypes / wireframes using online tools. The prototypes will be interactive so we're looking at tools like inVision, Marvel or Unpin. Think of it as product design. Will need to research competitors, plan the features etc, then design the screens. Let me know if you've done this before and why you are interested. It will be a joint project, we will work on it together as I know this space really well.