Hi,
I have gone through your requirement for online bidding.
I do have experience of online bidding on various platforms, like a guru, up work, LinkedIn and many more.
I have experience of more than 3+ years for various companies in budding.
Allow me to discuss with you to understand your exact requirement and will be able to put forward my suggestions on your requirement. This will help us submitting a better and realistic proposal.
Looking forward to hear back from you and get a chance to help you executing your project.